What ACA marketplace plans are available in Watertown, South Dakota in 2026?
Watertown, South Dakota (population 23,044), covering ZIP codes 57201 sits in Codington County, where 28 ACA marketplace plans from 3 insurers are available in 2026 with a benchmark (second-lowest-cost silver) plan at $709 per month for a 40-year-old. 2027 plans for Codington 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
- Sanford Health Plan — Sanford Individual Simplicity Standardized $6,000 · $679.23/mo · deductible $6,000 · MOOP $8,900
- Avera Health Plans — ConnectPlus Standard $6000 · $708.76/mo · deductible $6,000 · MOOP $8,900
- Avera Health Plans — ConnectPlus $4500 · $712.37/mo · deductible $4,500 · MOOP $10,150
See the Watertown city page with stats and ZIP codes →
Source: PY2026 QHP Landscape, Individual Market Medical (CMS Public Use File, released May 2026).