CMS Marketplace state · 115 counties
Missouri ACA marketplace premiums
Statewide aggregates from CMS Public Use Files. Listed rates are age-27 premiums unless a row notes another age band.
Data updated 2026-08-30
- $548
- Avg premium (age 27)
- 115
- Counties
- 8
- Issuers
- #19 of 30
- Premium rank (30 states)
Below median
Missouri lists 117 ACA marketplace plans across 115 counties from 8 issuers. Average age-27 premium is $548/mo (age 40: $669/mo; age 60: $1,420/mo), ranging $299 to $813/mo. Source: CMS Marketplace Public Use Files.
- State premium corpus place #19 of 30 (highest = #1)
- Costliest county Silver: Clark at $704/mo
- Cheapest county Silver: Sainte Genevieve at $471/mo
Premium rank is not plan-count rank
According to CMS Marketplace Public Use Files, Missouri ranks #19 of 30 federal-marketplace states by average age-27 premium ($548/mo) and #12 of 30 by plan count (117 plans).
- #19 of 30
- Age-27 premium among 30 states
- $548
- Average listed premium /mo (age 27)
- #12 of 30
- Plan count among 30 states
- 117
- Listed ACA plans in this state
Highest listed average premium = #1. Most listed plans = #1. Federal-marketplace states only; state-based exchanges are outside this corpus.
Crowded issuer book
Missouri marketplace standing
8 issuers put Missouri in the densest third of state issuer books. Corpus place #19 of 30 (highest premium = #1).
Mid-pack age-27 avg $548/mo with 117 plans and a crowded 8-issuer book. YoY average shift: +20.1%.
Source: CMS Marketplace Public Use Files. Informational only; confirm options at HealthCare.gov. How we place states.
Where Missouri sits by plan inventory
Missouri lists 117 ACA marketplace plans among 30 federal-marketplace states (inventory signal, not a quality ranking).
Missouri vs all states by ACA plan count
Where this state's disclosed CMS Marketplace plan inventory sits among every tracked federal-marketplace state
117 12th of 30 higher than 18 of 30 states
States, banded by ACA marketplace plan count
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source CMS Marketplace Public Use Files · 2026-08-30
Nationwide similar states
Similar average premium
Similar issuer count
Source: CMS Health Insurance Marketplace Public Use Files (Plan Year 2026) Missouri ACA marketplace premiums by county and metal tier (Plan Year 2026) · 2026 CMS publishes the Marketplace Public Use Files annually, covering the federal exchange and participating state-based exchanges. Premiums shown are pre-subsidy and reflect age-27 Silver averages.
Most Expensive Counties
| # | County | Silver Avg | Plans | Issuers |
|---|---|---|---|---|
| 1 | Clark | $704/mo | 23 | 2 |
| 2 | Lewis | $704/mo | 23 | 2 |
| 3 | Marion | $704/mo | 23 | 2 |
| 4 | Schuyler | $704/mo | 23 | 2 |
| 5 | Scotland | $704/mo | 23 | 2 |
Most Affordable Counties
| # | County | Silver Avg | Plans | Issuers |
|---|---|---|---|---|
| 1 | Sainte Genevieve | $471/mo | 39 | 3 |
| 2 | Washington | $471/mo | 39 | 3 |
| 3 | Lincoln | $474/mo | 59 | 5 |
| 4 | Franklin | $478/mo | 48 | 4 |
| 5 | Jefferson | $478/mo | 48 | 4 |
Next: choosing a metal level or estimating subsidies.
All Counties in Missouri
| County | Silver Avg | Bronze Avg | Gold Avg | Plans | Issuers | YoY |
|---|---|---|---|---|---|---|
| Adair | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Andrew | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Atchison | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Audrain | $624 | $484 | $596 | 39 | 3 | +17.0% |
| Barry | $568 | $433 | $536 | 55 | 5 | +24.4% |
| Barton | $557 | $434 | $541 | 48 | 4 | +22.5% |
| Bates | $596 | $466 | $576 | 45 | 4 | +13.6% |
| Benton | $611 | $475 | $587 | 34 | 3 | +13.6% |
| Bollinger | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Boone | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Buchanan | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Butler | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Caldwell | $696 | $538 | $667 | 43 | 4 | +23.3% |
| Callaway | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Camden | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Cape Girardeau | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Carroll | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Carter | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Cass | $585 | $452 | $561 | 54 | 5 | +20.2% |
| Cedar | $567 | $437 | $534 | 48 | 4 | +24.8% |
| Chariton | $624 | $484 | $596 | 39 | 3 | +17.0% |
| Christian | $568 | $433 | $536 | 55 | 5 | +24.4% |
| Clark | $704 | $548 | $652 | 23 | 2 | +20.1% |
| Clay | $568 | $438 | $551 | 55 | 5 | +18.3% |
| Clinton | $652 | $512 | $645 | 54 | 5 | +20.5% |
| Cole | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Cooper | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Crawford | $631 | $484 | $581 | 39 | 3 | +16.1% |
| Dade | $567 | $437 | $534 | 48 | 4 | +23.6% |
| Dallas | $567 | $437 | $534 | 48 | 4 | +23.6% |
| Daviess | $696 | $538 | $667 | 43 | 4 | +23.3% |
| DeKalb | $696 | $538 | $667 | 43 | 4 | +23.3% |
| Dent | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Douglas | $567 | $437 | $534 | 48 | 4 | +23.6% |
| Dunklin | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Franklin | $478 | $368 | $459 | 48 | 4 | +17.6% |
| Gasconade | $624 | $484 | $596 | 39 | 3 | +17.0% |
| Gentry | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Greene | $567 | $437 | $534 | 48 | 4 | +24.0% |
| Grundy | $696 | $538 | $667 | 43 | 4 | +23.3% |
| Harrison | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Henry | $626 | $488 | $605 | 54 | 5 | +19.6% |
| Hickory | $567 | $437 | $534 | 48 | 4 | +23.6% |
| Holt | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Howard | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Howell | $622 | $479 | $572 | 48 | 4 | +23.4% |
| Iron | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Jackson | $565 | $435 | $550 | 58 | 5 | +17.8% |
| Jasper | $557 | $434 | $541 | 48 | 4 | +19.0% |
| Jefferson | $478 | $368 | $459 | 48 | 4 | +17.6% |
| Johnson | $609 | $474 | $595 | 55 | 5 | +17.9% |
| Knox | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Laclede | $567 | $437 | $534 | 48 | 4 | +23.6% |
| Lafayette | $609 | $474 | $595 | 55 | 5 | +17.9% |
| Lawrence | $568 | $433 | $536 | 55 | 5 | +24.4% |
| Lewis | $704 | $548 | $652 | 23 | 2 | +20.1% |
| Lincoln | $474 | $366 | $454 | 59 | 5 | +18.2% |
| Linn | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Livingston | $696 | $538 | $667 | 43 | 4 | +23.3% |
| Macon | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Madison | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Maries | $624 | $484 | $596 | 39 | 3 | +17.0% |
| Marion | $704 | $548 | $652 | 23 | 2 | +20.1% |
| McDonald | $557 | $434 | $541 | 48 | 4 | +19.0% |
| Mercer | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Miller | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Mississippi | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Moniteau | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Monroe | $624 | $484 | $596 | 39 | 3 | +17.0% |
| Montgomery | $624 | $484 | $596 | 39 | 3 | +17.0% |
| Morgan | $617 | $480 | $586 | 48 | 4 | +19.7% |
| New Madrid | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Newton | $557 | $434 | $541 | 48 | 4 | +19.0% |
| Nodaway | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Oregon | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Osage | $617 | $480 | $586 | 48 | 4 | +19.7% |
| Ozark | $567 | $437 | $534 | 48 | 4 | +23.6% |
| Pemiscot | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Perry | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Pettis | $611 | $475 | $587 | 34 | 3 | +13.6% |
| Phelps | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Pike | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Platte | $568 | $438 | $551 | 55 | 5 | +18.3% |
| Polk | $567 | $437 | $534 | 48 | 4 | +23.6% |
| Pulaski | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Putnam | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Ralls | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Randolph | $624 | $484 | $596 | 39 | 3 | +17.0% |
| Ray | $603 | $476 | $609 | 46 | 4 | +14.0% |
| Reynolds | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Ripley | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Saint Charles | $479 | $370 | $458 | 68 | 6 | +17.0% |
| Saint Clair | $629 | $488 | $599 | 43 | 4 | +20.9% |
| Saint Francois | $485 | $372 | $479 | 23 | 2 | +10.2% |
| Saint Louis | $479 | $370 | $458 | 68 | 6 | +17.0% |
| Saint Louis City | $479 | $370 | $458 | 68 | 6 | +17.0% |
| Sainte Genevieve | $471 | $361 | $455 | 39 | 3 | +13.5% |
| Saline | $611 | $475 | $587 | 34 | 3 | +13.6% |
| Schuyler | $704 | $548 | $652 | 23 | 2 | +20.1% |
| Scotland | $704 | $548 | $652 | 23 | 2 | +20.1% |
| Scott | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Shannon | $631 | $484 | $581 | 39 | 3 | +20.0% |
| Shelby | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Stoddard | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Stone | $568 | $433 | $536 | 55 | 5 | +24.4% |
| Sullivan | $689 | $535 | $649 | 39 | 3 | +20.3% |
| Taney | $568 | $433 | $536 | 55 | 5 | +24.4% |
| Texas | $622 | $479 | $572 | 48 | 4 | +23.4% |
| Vernon | $629 | $488 | $599 | 43 | 4 | +20.9% |
| Warren | $479 | $370 | $458 | 68 | 6 | +17.0% |
| Washington | $471 | $361 | $455 | 39 | 3 | +13.5% |
| Wayne | $657 | $509 | $626 | 39 | 3 | +20.6% |
| Webster | $567 | $437 | $534 | 48 | 4 | +24.0% |
| Worth | $666 | $518 | $645 | 34 | 3 | +18.3% |
| Wright | $567 | $437 | $534 | 48 | 4 | +23.6% |
Frequently Asked Questions
Where does Missouri sit on ACA premiums vs other states? ▼
How wide is the county Silver gap inside Missouri? ▼
How crowded is the Missouri issuer book? ▼
Disclaimer: This page is for informational purposes only and does not constitute insurance or financial advice. Premiums shown are base rates for a 27-year-old non-tobacco user unless otherwise noted. Actual premiums vary by age, location, tobacco use, and subsidy eligibility. Source: CMS Marketplace PUF.
Read our methodology - how this data is sourced, computed, and verified.
PlainHealthPlan is rendered directly from CMS Health Insurance Marketplace Public Use Files, no number is typed in by an editor. County premiums and issuer counts are aggregated live from the CMS PUF records for each marketplace year. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.