What ACA marketplace plans are available in Saint Charles County, Missouri in 2026?
Saint Charles County, Missouri has 68 ACA marketplace plans from 5 insurers in 2026, with monthly premiums for a 40-year-old ranging from $365 to $635 and a benchmark (second-lowest-cost silver) plan at $532 per month, per the CMS PY2026 QHP Landscape file.
Updated July 21, 2026 · Reviewed by Jason Burns, Editorial Steward
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 Saint Charles 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).