South Carolina health insurance review for 2027: 46 verified CMS rate areas and 46 authentic counties
The HealthCare.gov enrollment system is the starting point for South Carolina residents comparing qualified individual coverage for 2027. HealthCare.gov enrollment guidance says Open Enrollment starts November 1, 2026 and ends January 15, 2027. December 15, 2026 is the published or ordinarily applicable cut-off for selecting coverage effective January 1; confirm your marketplace’s payment rules. Public Medicaid and CHIP programs, employer insurance and special enrollment after qualifying life events have different rules.
The South Carolina Department of Insurance is the state regulator for applicable health-insurance rate filings, not the entity that decides an individual federal premium tax credit. SCDOI updated its official 2027 Marketplace county participation list on October 15, 2026. It identifies carriers in specific counties; it does not publish a universal price, provider network or 2027 premium rank for those companies. For exact 2027 plan options, premiums, networks and assistance, enter a real residential ZIP and household details in HealthCare.gov official plan preview.
CMS divides South Carolina into 46 rating areas containing 46 counties as defined in the original CMS state table. We match every CMS county name to its actual U.S. Census 2020 county geometry and GEOID. The interactive county map represents premium-rating geography; it cannot prove a company offers a specific product in every county, that a hospital is in network or that two adjacent ZIPs have identical post-subsidy prices.
South Carolina stands out: 46 counties and 46 separate premium-rating areas, plus an October 2026 regulator list naming exact 2027 issuer service counties. A statewide carrier logo is therefore a particularly poor substitute for a ZIP-specific comparison.
Research cut-off: October 26, 2026. SCDOI already named six 2027 exchange issuers by county; statewide availability is verified only for Absolute Total Care and BCBS SC. Separate county-only rating areas do not equal 46 identical prices or networks. This is an independent editorial comparison guide, not a medical or underwriting recommendation.
Six decisions that matter when comparing South Carolina 2027 health plans
South Carolina contains 46 real counties in 46 CMS price regions; availability is narrower than a state-level brand list.
SCDOI updated its official 2027 Marketplace county participation list on October 15, 2026. It identifies carriers in specific counties; it does not publish a universal price, provider network or 2027 premium rank for those companies.
A hospital system, specialist billing practice, mental health clinician and local pharmacy may each have different contracts for the same brand.
Combine net monthly premiums, deductible, copay, coinsurance, prescriptions and out-of-pocket ceiling; lowest monthly price is not automatically best for frequent care.
Healthy Connections Medicaid eligibility and managed-care selections use separate SCDHHS rules from the federal ACA qualified-plan window.
Use the official HealthCare.gov calendar, confirm effective date and do not assume last year’s tax credit or provider contract survives unchanged.
South Carolina interactive insurance county map: 46 real CMS rating regions, 46 genuine county shapes
The map below uses the true U.S. Census TIGERweb 2020 geometry and exact CMS geographic rating area assignments. Every shape uses a 5-digit Census GEOID and corresponds to one county in the source. The table below gives all 46 official groups and exact county counts. Select any county in the map control to see its real rating-area peers. It is a county boundary map, not a stylized state silhouette.
| Official rating area | Actual counties | Examples / county membership |
|---|---|---|
| Area 1 · state region | 1 | Abbeville |
| Area 2 · state region | 1 | Aiken |
| Area 3 · state region | 1 | Allendale |
| Area 4 · state region | 1 | Anderson |
| Area 5 · state region | 1 | Bamberg |
| Area 6 · state region | 1 | Barnwell |
| Area 7 · state region | 1 | Beaufort |
| Area 8 · state region | 1 | Berkeley |
| Area 9 · state region | 1 | Calhoun |
| Area 10 · Charleston | 1 | Charleston |
| Area 11 · state region | 1 | Cherokee |
| Area 12 · state region | 1 | Chester |
| Area 13 · state region | 1 | Chesterfield |
| Area 14 · state region | 1 | Clarendon |
| Area 15 · state region | 1 | Colleton |
| Area 16 · state region | 1 | Darlington |
| Area 17 · state region | 1 | Dillon |
| Area 18 · state region | 1 | Dorchester |
| Area 19 · state region | 1 | Edgefield |
| Area 20 · state region | 1 | Fairfield |
| Area 21 · Florence | 1 | Florence |
| Area 22 · state region | 1 | Georgetown |
| Area 23 · Greenville | 1 | Greenville |
| Area 24 · state region | 1 | Greenwood |
| Area 25 · state region | 1 | Hampton |
| Area 26 · Horry | 1 | Horry |
| Area 27 · state region | 1 | Jasper |
| Area 28 · state region | 1 | Kershaw |
| Area 29 · state region | 1 | Lancaster |
| Area 30 · state region | 1 | Laurens |
| Area 31 · state region | 1 | Lee |
| Area 32 · state region | 1 | Lexington |
| Area 33 · state region | 1 | McCormick |
| Area 34 · state region | 1 | Marion |
| Area 35 · state region | 1 | Marlboro |
| Area 36 · state region | 1 | Newberry |
| Area 37 · state region | 1 | Oconee |
| Area 38 · state region | 1 | Orangeburg |
| Area 39 · state region | 1 | Pickens |
| Area 40 · Richland | 1 | Richland |
| Area 41 · state region | 1 | Saluda |
| Area 42 · state region | 1 | Spartanburg |
| Area 43 · state region | 1 | Sumter |
| Area 44 · state region | 1 | Union |
| Area 45 · state region | 1 | Williamsburg |
| Area 46 · York | 1 | York |
Geography check: 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = 46 county-equivalents. CMS rating areas explain part of filed premium geography; real insurer networks, benefit designs and federal financial aid require separate verification.
What verified sources can and cannot tell us about South Carolina’s 2027 insurance companies
The state’s individual enrollment explainer and official rate-review portal provide useful context for insurer names and filings, but records from 2025 or 2026 cannot by themselves certify a 2027 Marketplace roster. The current plan-shopping workflow determines the exact legal issuer, network name, metal level and counties of sale. We therefore label the evidence year and refuse to invent a current 2027 market-share ranking, star rating or approved statewide change.
SCDOI October 2026 roster records statewide 2027 marketplace participation; verify exact product, doctor contracts and a personalized quote.
Original reference / lookupAn issuer with statewide sale authorization may offer different products and networks by county. Check the particular 2027 network.
Original reference / lookupDOI lists Charleston, Colleton, Florence, Horry, Marion and York. Do not infer Oscar availability in Greenville or Richland.
Original reference / lookupSCDOI lists Select Health in 27, InStil in four, and UnitedHealthcare of SC in nine counties; the three have different county rosters.
Original reference / lookup| Research task | Valid evidence | Invalid inference |
|---|---|---|
| Name a 2027 carrier | Live 2027 exact-ZIP Marketplace issuer and product list | A 2026 issuer mention is automatic 2027 proof |
| Compare legal issuer rates | South Carolina Department of Insurance product-year filings | A filed or proposed increase is every customer’s bill |
| Identify a real doctor | Precise 2027 plan network directory and direct confirmation | A parent insurer brand guarantees every doctor |
| Decide plan quality | Comparable official QHP quality and grievance information | Invented “top 5” insurer stars |
| Choose lowest total cost | Subsidized quote plus expected yearlong benefits | Premium-only price ranking |
2027 South Carolina premiums: interpret official rate filings before comparing individual prices
South Carolina Department of Insurance official rate data reports filings scoped by company, filing year, market type and sometimes specific product. A filing for small-group coverage should not be presented as an individual Marketplace renewal; a 2026 change should not be relabeled 2027. For an exact household amount, use the official current 2027 preview and distinguish the insurer’s gross monthly premium from any federal advance premium tax credit.
| Rate information | What it can establish | What remains unknown |
|---|---|---|
| Regulator filing | Issuer, covered policy form, requested/approved change and effective date when present | Your particular plan ID, net payment and doctors |
| County rating area | South Carolina CMS region that can affect geographic rating | Which insurer products are sold at a ZIP |
| Marketplace plan preview | Current available 2027 plan, benefits and indicative cost for entered demographics | Final assistance until eligibility is determined |
| Summary of Benefits and Coverage | Deductible, maximum exposure and benefit-cost sharing | Care usage and exact total cost in coming year |
| Premium tax credit eligibility | Household-based financial assistance determined through the official system | Guaranteed subsidy from reading a public rate table |
Keep the State context above, then compare current options using the actual ZIP, household details, provider needs and prescriptions that apply to you.
South Carolina coverage landscape in 2027: state review, CMS regions and actual local choice
The South Carolina DOI has published a rare county-by-county 2027 ACA issuer roster. Absolute Total Care and BlueCross BlueShield of South Carolina expect statewide availability; InStil Health is in four counties, Oscar Health Plan in six, Select Health of South Carolina in 27, and UnitedHealthcare of South Carolina in nine. Each of the 46 counties also constitutes a distinct CMS premium-rating area—a county-specific issuer list is therefore crucial.
The practical distinction is between insurers licensed by the state, ACA individual Marketplace issuers, and specific networks/products available in a ZIP. These are not identical counts. A health insurer can file a group product without participating in Marketplace QHPs, and a company can participate in one part of South Carolina but not all 46 counties.
The federal Marketplace shopping platform can be previewed before enrollment, though final costs require full application. If a plan is absent in a county, do not infer its price from a neighboring area or a prior-year product. Consult the South Carolina Department of Insurance when an approved filing or license question matters.
| Market question | Verified pathway | Editorial caution |
|---|---|---|
| Are 2027 products shown for my ZIP? | Live HealthCare.gov plan preview | A statewide marketing page is not a county catalog |
| Where are official county price divisions? | CMS South Carolina geography | 46 areas, not 46 unique networks |
| Can I rely on a past-year insurer listing? | State individual enrollment guidance | Confirm current plan year and county |
| How are insurer rate changes examined? | State rate filing system | No unverified 2027 aggregate percentage |
| What if my household is public-program eligible? | South Carolina Healthy Connections Medicaid | Program eligibility and MCO choice are separate |
Four real South Carolina household scenarios that change the right plan comparison
Charleston · Charleston County · CMS Area 10 — Coastal network and new issuer choice: The state DOI lists Oscar and Select Health for Charleston, alongside statewide issuers; verify hospital campus coverage before using a coastal plan. When comparing the actual 2027 quote, weigh expected annual expenses as well as price and check whether the listed plan serves this location.
Columbia · Richland County · CMS Area 40 — Capital-region carrier availability: Richland is one standalone rating area. The official list names Select Health here but not Oscar in 2027. When comparing the actual 2027 quote, weigh expected annual expenses as well as price and check whether the listed plan serves this location.
Greenville · Greenville County · CMS Area 23 — Upstate physician networks: Greenville has its own CMS area and issuer mix. Compare health systems and specialty referrals under the actual exact network. When comparing the actual 2027 quote, weigh expected annual expenses as well as price and check whether the listed plan serves this location.
Myrtle Beach · Horry County · CMS Area 26 — Grand Strand seasonal care: DOI lists Oscar and Select Health in Horry. Validate year-round physician and urgent care availability for residents and travel. When comparing the actual 2027 quote, weigh expected annual expenses as well as price and check whether the listed plan serves this location.
| County / local setting | Priority to investigate | Document to save |
|---|---|---|
| Charleston · Area 10 | Coastal network and new issuer choice | 2027 county-specific plan ID, provider directory and SBC |
| Richland · Area 40 | Capital-region carrier availability | 2027 county-specific plan ID, provider directory and SBC |
| Greenville · Area 23 | Upstate physician networks | 2027 county-specific plan ID, provider directory and SBC |
| Horry · Area 26 | Grand Strand seasonal care | 2027 county-specific plan ID, provider directory and SBC |
Provider networks in South Carolina: hospitals, rural referrals and cross-area visits
Coverage is a contractual relationship among the exact plan network, named professional, hospital facility and service. South Carolina’s 46 rating areas only determine part of premium geography. They do not establish whether a hospital near Charleston, Columbia or a rural community is contracted, what referral requirements apply or if non-emergency care across state lines is covered.
List the treating doctor, hospital campus, specialist, outpatient lab, therapy facility and preferred pharmacies.
Search its named provider network; an insurer’s corporate website may list facilities for several incompatible products.
Ask the billing office and insurer whether the provider is accepting new patients under that exact product.
Check emergency exceptions, nonemergency out-of-area care and rural specialist referrals, especially for border counties.
How to compare South Carolina plan quality without made-up insurer ratings
A brand’s advertising, state license status and a quality-scorecard result measure different things. We found no defensible basis to assign invented statewide 2027 five-star ratings to every South Carolina insurer. Instead, compare official QHP quality information where displayed, plan-specific network and medication access, appeals rules and regulatory complaint records with denominators.
| Quality dimension | Primary evidence | Common pitfall |
|---|---|---|
| QHP quality measures | Actual Marketplace plan detail | Transferring a score from another state/year/product |
| Provider access | Named issuer/network directory and direct hospital verification | Assuming a parent brand means statewide provider acceptance |
| Complaint or rate history | South Carolina Department of Insurance | Unadjusted complaint totals as a five-star score |
| Out-of-pocket protection | Official SBC and annual maximum | Confusing deductibles with total worst-case exposure |
Prescription costs and preferred pharmacies for 2027 South Carolina plans
One coverage brand may have different drug formularies across Bronze, Silver and Gold contracts. Verify the medication name, strength and dose; preferred pharmacy; deductible; tier; prior authorization; and specialty supply. A pharmacy shown as “participating” can still have a non-preferred price for a certain plan. Public South Carolina Healthy Connections Medicaid formularies must never be treated as equivalent to commercial qualified health plans.
Include brand/generic, strength, dosage, monthly quantity and prescriber.
Open the specific 2027 policy’s covered-drug list; do not use a 2026 PDF.
Look for step therapy, prior authorization, specialty pharmacy and mail-order rules.
Discuss transition refills and appeals if a necessary medication is excluded or restricted.
Financial help for South Carolina households: Marketplace credits, Medicaid and CHIP
The Marketplace uses an applicant’s projected annual household income, tax family size, access to other qualifying affordable coverage and applicable federal rules to evaluate premium tax credits. Visit HealthCare.gov savings and eligibility for current criteria. Premium assistance is not established by a company’s gross filed rate; renewal estimates may change when income or household circumstances change.
South Carolina Healthy Connections Medicaid administers separate public eligibility routes. Healthy Connections Medicaid eligibility and managed-care selections use separate SCDHHS rules from the federal ACA qualified-plan window. See the current state program announcement for relevant public program choice dates. A person screened for Medicaid/CHIP should follow official eligibility instructions, rather than buying a private product on the assumption the rules are interchangeable.
| Coverage route | Official entry point | Important distinction |
|---|---|---|
| Individual Marketplace QHP | HealthCare.gov | Annual federal OEP or qualifying Special Enrollment Period |
| Income-based federal credits | HealthCare.gov assistance | Household-specific eligibility, not blanket discount |
| State Medicaid | South Carolina Healthy Connections Medicaid | Public eligibility pathway and distinct benefit/renewal rules |
| CHIP / managed-care choices | State program details | Dependent eligibility and program choice dates differ |
| Rate complaints and verification | South Carolina Department of Insurance | State review cannot promise an insurer will approve a claim |
2027 South Carolina enrollment timeline: dates and important effective-date checks
HealthCare.gov official calendar sets ordinary federal Marketplace Open Enrollment from November 1, 2026 through January 15, 2027. Submit by December 15, 2026 for the usual January 1 effective date and check your state Marketplace’s effective-date and premium payment rules; plans selected later may begin February 1. Enrollment outside the window requires an accepted Special Enrollment Period or a public-program pathway where eligible. Always confirm effective date in the actual application and bill.
| Date / event | Action | Avoid this error |
|---|---|---|
| Before November 1, 2026 | Collect providers, current medications, household income and last year’s notices | Waiting until a renewal is automatically processed |
| November 1, 2026 | Begin shopping 2027 plans in the official Marketplace | Comparing current-year product documents |
| December 15, 2026 | Complete enrollment intended for January 1, 2027 | Assuming a later selection starts January 1 |
| January 15, 2027 | Ordinary Marketplace Open Enrollment ends | Mistaking a public-program window for private enrollment |
| After OEP | Check special enrollment situations | Assuming any preference change is sufficient |
A reproducible six-step South Carolina insurance comparison checklist for 2027
Use HealthCare.gov and enter the correct ZIP, applicant ages, household and projected income.
Use the verified county map, then check that the selected 2027 plan serves the exact home address.
Do not treat old state filing pages as the final carrier lineup or hospital directory.
Check total estimated premiums after aid, deductible, expected care and maximum out-of-pocket.
Check drug tier, authorization, pharmacy contract and insurer exceptions.
Save plan ID, SBC, selected doctors, effective date and official enrollment confirmation.
Use HealthCare.gov and the South Carolina Department of Insurance for authoritative insurance questions. South Carolina’s verified 46-county map supports geographic understanding, but it does not solicit applications, collect personal health data or promise insurer approval.
South Carolina health insurance FAQs for the 2027 coverage year
How many actual insurance rating areas are in South Carolina?
46 CMS geographic rating areas, made up of exactly 46 genuine county-equivalent polygons. The map links names from CMS to the 2020 U.S. Census, not an invented diagram.
When is 2027 Open Enrollment in South Carolina?
For HealthCare.gov, November 1, 2026 through January 15, 2027, normally with December 15, 2026 for January 1 coverage. Confirm your case with the official Marketplace.
Does a low rate increase mean the cheapest plan?
No. Carrier or product average increases, gross rates, personal net premiums and expected whole-year bills are different measures.
Can I rely on an insurer listed on an older South Carolina regulator page?
Do not infer 2027 product availability from an older filing or educational page. Check the actual plan year and residential ZIP.
Is the county map a South Carolina hospital network map?
No. CMS rating divisions are pricing geography; provider participation must be confirmed for the exact named plan.
Can I keep a current specialist if I switch companies?
Possibly, but only when the specific clinician and billing organization have active contracts with that exact 2027 network.
Are Bronze, Silver and Gold the same as insurer star ratings?
No. Metal tiers describe expected actuarial cost-sharing, not clinical quality or customer satisfaction.
Does a 2026 filed premium change reveal the approved 2027 change?
No. Filing year, market segment and regulatory status must be separately confirmed.
How should I check prescriptions?
Use the exact 2027 formulary for medication, strength, limits, pharmacy and prior authorization.
Do Medicaid and CHIP use the same enrollment calendar?
No. Public coverage has distinct eligibility, renewal and managed-care selection rules.
Why would a neighboring county have different results?
Insurer service areas and actual plans may vary by ZIP even within the same CMS rating area.
Where can I get an exact premium after savings?
Use HealthCare.gov's live plan comparison and final eligibility application. Public articles cannot determine a family’s tax credit.
South Carolina 2027 primary-source ledger: 18 questions, verified and explicitly unresolved evidence
Researched October 26, 2026. We consulted the actual CMS county assignment table and U.S. Census polygons, the official federal Marketplace 2027 enrollment resources, the South Carolina Department of Insurance rate portal and public-program sources. Unknown 2027 prices and insurance issuer rosters are marked unresolved, not silently invented. All photos are original AI-created illustrations with ApexTrusted signatures.
County membership matched one to one across 46 real county units.
Official county assignments2020 Census boundaries and unique GEOIDs.
Geometry sourceCurrent plan-year dates and ZIP-dependent previews.
Marketplace plan previewActual filing/product/year verification required.
Official state rate search| Evidence category / verification status | Supported finding and limitation | Primary source |
|---|---|---|
| 1. Official Marketplace for 2027 · FOUND_CURRENT | HealthCare.gov shopping for individual Marketplace products | Official source |
| 2. 2027 Open Enrollment start/end · FOUND_CURRENT | HealthCare.gov OEP November 1, 2026–January 15, 2027 | Official source |
| 3. January 1 effective date cutoff · FOUND_CURRENT | Ordinary December 15, 2026 selection deadline; payment rules may vary | Official source |
| 4. CMS rating area count · FOUND_CURRENT | 46 actual groups | Official source |
| 5. Real county group count · FOUND_CURRENT | 46 county identities summed across CMS areas | Official source |
| 6. Exact county outline dataset · FOUND_CURRENT | 46 Census 2020 GEOID polygons | Official source |
| 7. State insurance regulator · FOUND_CURRENT | South Carolina Department of Insurance | Official source |
| 8. Official rate filing system · FOUND_CURRENT | Filing year/market/product must be inspected individually | Official source |
| 9. State insurance shopping explainer · FOUND_CURRENT | State-hosted individual coverage information; year may be historical | Official source |
| 10. Current 2027 ZIP plan preview · FOUND_CURRENT | HealthCare.gov ZIP/household estimate tool | Official source |
| 11. Private coverage special enrollment · FOUND_CURRENT | Qualifying-life-event rules apply after OEP | Official source |
| 12. Federal household subsidy screening · FOUND_CURRENT | APTC eligibility requires real financial details | Official source |
| 13. Separate state Medicaid program · FOUND_CURRENT | South Carolina Healthy Connections Medicaid | Official source |
| 14. Public managed-care or CHIP distinction · FOUND_CURRENT | Healthy Connections Medicaid eligibility and managed-care selections use separate SCDHHS rules from the federal ACA qualified-plan window. | Official source |
| 15. Verified state-specific research · FOUND_CURRENT | The actual CMS geography has 46 separate county-level premium areas for 46 counties, unlike multi-county states. | Official source |
| 16. All 2027 insurer-specific rate changes · NOT_AVAILABLE_AFTER_RESEARCH | No complete validated exact 2027 individual approval table asserted | Official source |
| 17. Every ZIP-specific issuer and net price · NOT_AVAILABLE_AFTER_RESEARCH | Exact 2027 product, age, residence and household application required | Official source |
| 18. Personal doctors, hospitals and drug tiers · NOT_AVAILABLE_AFTER_RESEARCH | Requires real plan ID, current provider directory and full formulary | Official source |
Editorial method: Our map rejects missing, duplicate or mismatched county-to-CMS area assignments; rate claims are not extrapolated across plan years; named historic carrier resources are not treated as confirmed 2027 choices; and individual savings and provider participation remain personal application questions. Research, original annotated imagery and source status are openly distinguished.
Research & editing by Tú Nguyễn Founder & Research Editor
Tú Nguyễn operates ApexTrusted and researches public insurer, government and regulatory information for its guides. This is editorial research, not a specialist medical or insurance-license review.
Read full editor biographyWhy you can trust this guide
ApexTrusted identifies the dates, geographic scope and limits of the published sources behind each state guide. Carrier availability, prices and networks need plan-specific verification. Referral compensation is disclosed separately from editorial research.
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Use the South Carolina research to compare the options that actually apply to you
The State review explains the market, geography, rate and network context. The next step is to keep those findings attached to your real ZIP, household, providers, prescriptions and current plan choices.