Health insurance cost in St. Louis city, MO (2026)

68 Marketplace plans from 5 insurance companies are sold in St. Louis city in 2026. Here is what they cost by tier and age, what a tax credit does to the price, the cheapest plans by name, and what private plans run for healthy households.

Cheapest Bronze, age 40

$405/mo

full price, before any credit

Silver benchmark, age 40

$532/mo

the plan tax credits are based on

Plans

68 EPO

Insurers

selling in this county

Deductibles

$0 to $10,600

individual, standard plans

Monthly premiums by tier and age

Tier	Age 21	Age 30	Age 40	Age 50	Age 60
Bronze (24 plans)	$317–$396	$359–$450	$405–$506	$566–$708	$860–$1,076
Silver (24 plans)	$409–$497	$465–$564	$523–$635	$731–$887	$1,111–$1,349
Gold (19 plans)	$399–$478	$453–$542	$510–$611	$712–$854	$1,083–$1,297

Lowest to highest monthly premium among the plans sold in St. Louis city, before any tax credit, from the CMS 2026 plan file (snapshot August 4, 2026).

Ranges at a glance (age 40)

Blue: Marketplace tiers, full price. Green: private plan range for a healthy 40-year-old man in Missouri, after the advisors' usual adjustment.

What a tax credit does in St. Louis city

Household	% of poverty level	Estimated tax credit	Cheapest Bronze, full → after credit
A single 40-year-old earning $40,000	255%	$245/mo	$405 → $160
A family of four (parents 40 and 38, two kids) earning $85,000	264%	$1,057/mo	$1,284 → $227

2025 federal poverty guidelines apply to 2026 coverage; the enhanced credits of 2021–2025 expired, so the 400% cutoff is back (for one person that is $62,600 a year, for four $128,600). The Marketplace sets the final credit.

See your own numbers for St. Louis city

Enter your age, household and income and get every Marketplace plan priced for you, your estimated tax credit, and a private plan range, side by side, in about 30 seconds. No medical questions.

Show my price ranges

Cheapest Marketplace plans in St. Louis city

Priced for a 40-year-old, full price. Every plan, with deductibles and copays, is in the tool once you enter your household.

Cheapest Bronze plans

Standard Expanded BronzeAmbetter Health · EPO$405/mo at 40 · deductible $7,500 · max out-of-pocket $10,000

Everyday BronzeAmbetter Health · EPO$406/mo at 40 · deductible $8,450 · max out-of-pocket $10,150

Anthem Bronze Pathway 10150 ($0 Virtual PCP + $0 Select Drugs + IncentAnthem Blue Cross and Blue Shield · EPO$406/mo at 40 · deductible $10,150 · max out-of-pocket $10,150

Cheapest Silver plans

Standard SilverAmbetter Health · EPO$523/mo at 40 · deductible $6,000 · max out-of-pocket $8,900

Complete SilverAmbetter Health · EPO$532/mo at 40 · deductible $5,950 · max out-of-pocket $8,850

Standard Silver + Vision + Adult DentalAmbetter Health · EPO$539/mo at 40 · deductible $6,000 · max out-of-pocket $8,900

Cheapest Gold plans

Gold SimpleOscar Insurance Company · EPO$510/mo at 40 · deductible $3,300 · max out-of-pocket $9,950

Standard GoldAmbetter Health · EPO$512/mo at 40 · deductible $2,000 · max out-of-pocket $8,200

Everyday GoldAmbetter Health · EPO$518/mo at 40 · deductible $800 · max out-of-pocket $7,250

Private plans in Missouri

Age	Man, monthly range	Woman, monthly range
30	$53–$329	$128–$428
40	$120–$458	$153–$506
50	$243–$530	$227–$519
60	$396–$725	$331–$657

A family of four (parents 40 and 38 with two children) is typically quoted $481 to $958 a month in Missouri. Private plans are not ACA plans: no tax credit, health questions on the application, and pre-existing conditions can raise the price or be excluded. Deductibles are usually lower than the cheapest Marketplace tiers and you can enroll any month of the year.

Questions people ask

What is the cheapest health insurance in St. Louis city?

For a 40-year-old paying full price, the cheapest Marketplace plan in St. Louis city is a Bronze plan at $405 a month (Ambetter Health). With a tax credit it can be far less; see the examples above. Private plans for a healthy 40-year-old man start around $120 a month.

How many health insurance companies sell Marketplace plans in St. Louis city?

5 in 2026: Ambetter Health, Anthem Blue Cross and Blue Shield, Medica, Oscar Insurance Company, UnitedHealthcare. Between them they offer 68 plans (68 EPO).

Do I qualify for a tax credit in St. Louis city?

Marketplace premium tax credits apply when household income is between 100% and 400% of the federal poverty level, which for 2026 means up to $62,600 for one person or $128,600 for a family of four. Missouri expanded Medicaid, so incomes under 138% of the poverty level are usually covered there instead. Enter your income in the tool to see your estimate.

When can I enroll?

Marketplace Open Enrollment runs from November 1 to mid-January in most states, or within 60 days of a qualifying life event such as losing other coverage, moving, marriage or a new baby. Private plans can be applied for any month of the year.

Nearby counties in Missouri

All Missouri counties →

Sources: CMS QHP Landscape PY2026 Individual Medical (data.healthcare.gov, snapshot August 4, 2026); HHS 2025 poverty guidelines; IRS Rev. Proc. 2025-25; private ranges from the carrier rate tables our advisors quote from. Page generated 2026-09-29.