What ACA marketplace plans are available in Stillwater, Oklahoma in 2026?
Stillwater, Oklahoma (population 49,269), covering ZIP codes 74074, 74075, 74076, 74077, 74078 sits in Payne County, where 62 ACA marketplace plans from 5 insurers are available in 2026 with a benchmark (second-lowest-cost silver) plan at $592 per month for a 40-year-old. 2027 plans for Payne County are now available.
Updated July 23, 2026 · Reviewed by Jason Burns, Editorial Steward
Reviewed by Heather Fabrizio, Licensed Insurance Agent (NPN 20983651) · reviewed Jul 25, 2026
Three lowest-cost silver plans at age 40
- Ambetter of Oklahoma — Standard Silver · $585.29/mo · deductible $6,000 · MOOP $8,900
- Ambetter of Oklahoma — Focused Silver · $592.30/mo · deductible $6,300 · MOOP $8,400
- Ambetter of Oklahoma — Enhanced Asthma/COPD Care Silver with $0 Drug Options · $602.87/mo · deductible $5,900 · MOOP $8,150
See the Stillwater city page with stats and ZIP codes →
Source: PY2026 QHP Landscape, Individual Market Medical (CMS Public Use File, released May 2026).