Missouri
Cheapest ACA plans in Saint Louis, Missouri for 2026
Plan year 2026, last refreshed 2026-04-19T08:08:55.462Z.
Saint Louis is in St. Louis City, Missouri. 6 carriers sell 2026 ACA plans on Healthcare.gov for residents of St. Louis City, and the cheapest Bronze plan a 40-year-old can enroll in starts at $405/month before any subsidy. Carriers are licensed and rated at the county level, so the plans below cover everyone in St. Louis City, including Saint Louis.
Cheapest plans by metal tier
Lowest 2026 monthly premium for a single 40-year-old in Saint Louis (St. Louis City), on-exchange, before any subsidy. Per-age figures derived from the CMS QHP Landscape file using the HHS standardized age-rating curve (45 CFR 147.102).
| Tier | Cheapest age 40 monthly | Plans in St. Louis City |
|---|---|---|
| Catastrophic | $365 | 1 |
| Expanded Bronze | $405 | 22 |
| Bronze | $406 | 2 |
| Gold | $510 | 19 |
| Silver | $523 | 24 |
The actual cheapest Bronze plan in Saint Louis
Ambetter from Home State Health Standard Expanded Bronze
$405/moFor a family of four (two 40-year-olds and two kids under 14): Ambetter from Home State Health Standard Expanded Bronze at $1,294/month before subsidies.
Carriers selling 2026 plans in Saint Louis
6 carriers sell 2026 plans on Healthcare.gov for St. Louis City residents; 1 additional carrier offers off-exchange-only plans (not subsidy-eligible). 136 plans total in St. Louis City.
| Carrier | On-exchange plans |
|---|---|
| Ambetter | 16 |
| UnitedHealthcare | 13 |
| Oscar | 11 |
| Anthem | 10 |
| Medica | 9 |
| SSMHIC Insurance Company | 9 |
Also selling off-exchange only
These carriers sell plans directly (not through Healthcare.gov). Off-exchange plans are not eligible for federal APTC or state subsidies.
| Carrier | Off-exchange plans |
|---|---|
| Bankers Reserve Life Insurance Co. | 52 |
What you'll actually pay in Saint Louis
Estimated monthly net premium for the cheapest Bronze plan above ($405/mo before subsidy) on Healthcare.gov, after federal APTC. APTC is computed against the St. Louis Citybenchmark Silver per 26 USC §36B. Approximate; exact net varies by plan's EHB% and child-rate structure.
Single 40-year-old
| Annual income | FPL % | Federal APTC | Cheapest Bronze net |
|---|---|---|---|
| $25,000 | 160% | $435/mo | $0/mo |
| $40,000 | 256% | $245/mo | $160/mo |
| $60,000 | 383% | $34/mo | $371/mo |
| $100,000 | 639% | — | $405/mo |
Family of 4 (two 40-year-olds, two children)
| Annual income | FPL % | Federal APTC | Cheapest Bronze net |
|---|---|---|---|
| $40,000 | 124% | — | Medicaid likely |
| $80,000 | 249% | $1,140/mo | $154/mo |
| $130,000 | 404% | — | $1,294/mo |
| $200,000 | 622% | — | $1,294/mo |
FPL = Federal Poverty Level. APTC = Advance Premium Tax Credit (the federal subsidy). Off-exchange and Catastrophic plans are not APTC-eligible. Enter your real income on the home page to see plan-specific net premium with the per-plan EHB-percent cap applied.
Frequently asked questions
What is the cheapest ACA plan in Saint Louis, Missouri for 2026?
The cheapest Bronze plan a 40-year-old can enroll in is Ambetter from Home State Health Standard Expanded Bronze at $405 per month before subsidies. Plans sell through Healthcare.gov. Saint Louis is in St. Louis City, Missouri; carriers are licensed and rated at the county level. Data refreshed 2026-04-19T08:08:55.462Z.
How does Saint Louis's 2026 ACA pricing compare to other Missouri cities?
Cheapest Bronze for a 40-year-old in Saint Louis is $405 per month before subsidies. For comparison: Kansas City at $442/mo. Different cities can have different cheapest plans because plans are sold per county and carrier participation varies by jurisdiction.
Does Missouri use Healthcare.gov?
Yes. Missouri participates in the federally-facilitated Marketplace (FFM), so enrollment and subsidy applications run through healthcare.gov. Missouri does not operate a state-based exchange.
Has Missouri expanded Medicaid?
Yes, effective October 1, 2021. Missouri voters approved Amendment 2 in August 2020 with 53% support, directing the state to expand Medicaid to adults 19-64 up to 138% FPL. The legislature initially refused to fund the expansion; a July 2021 Missouri Supreme Court ruling forced implementation. There is no coverage gap in Missouri.
What was the Amendment 2 delay about?
Missouri voters passed Amendment 2 in August 2020 making Medicaid expansion a constitutional requirement. The Missouri legislature then refused to appropriate funding in its 2021 budget. A lawsuit resulted in a July 2021 Missouri Supreme Court ruling that the state must fund the expansion, and coverage for the expansion population began October 1, 2021.
More Missouri pricing
- Statewide Missouri pricing and metal tiers
- Kansas City pricingcheapest Bronze $442/mo
Sources
- HealthCare.gov for enrollment, OEP dates, and federal APTC / CSR application.
- Missouri Department of Commerce and Insurance for rate review, carrier filings, and consumer guidance.
- Missouri Department of Social Services: MO HealthNet for MO HealthNet Medicaid eligibility and expansion enrollment.
- KFF: Missouri State Health Facts for Medicaid expansion, enrollment, and benchmark premium context.
Plan year 2026, last refreshed 2026-04-19T08:08:55.462Z. Full pricing pipeline + regulatory references at methodology; ACA terminology in the glossary.