What ACA marketplace plans are available in Jefferson County, Missouri in 2026?
Jefferson County, Missouri has 48 ACA marketplace plans from 4 insurers in 2026, with monthly premiums for a 40-year-old ranging from $365 to $629 and a benchmark (second-lowest-cost silver) plan at $532 per month, per the CMS PY2026 QHP Landscape file. 2027 plans for Jefferson County are now available — to compare them and enroll, call United Enrollment Services, a licensed insurance agency, at 1-866-401-4116.
Updated July 23, 2026 · Reviewed by Jason Burns, Editorial Steward
Reviewed by Heather Fabrizio, licensed in Missouri (License #3002917511) · reviewed Jul 25, 2026
Three lowest-cost silver plans at age 40
- Ambetter from Home State Health — Standard Silver · $523.28/mo · deductible $6,000 · MOOP $8,900
- Ambetter from Home State Health — Complete Silver · $531.51/mo · deductible $5,950 · MOOP $8,850
- Ambetter from Home State Health — Standard Silver + Vision + Adult Dental · $539.09/mo · deductible $6,000 · MOOP $8,900
See the full Jefferson County plan table with all issuers, metal tiers, and cost-sharing →
Source: PY2026 QHP Landscape, Individual Market Medical (CMS Public Use File, released May 2026).