What ACA marketplace plans are available in San Tan Valley, Arizona in 2026?
San Tan Valley, Arizona (population 109,189), covering ZIP codes 85140, 85143, 85144 sits in Pinal County, where 78 ACA marketplace plans from 6 insurers are available in 2026 with a benchmark (second-lowest-cost silver) plan at $501 per month for a 40-year-old. 2027 plans for Pinal 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 Arizona (License #20983651) · reviewed Jul 25, 2026
Three lowest-cost silver plans at age 40
- Antidote Health Plan of Arizona, Inc. — Silver Complete 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx · $498.84/mo · deductible $7,500 · MOOP $10,600
- Imperial Insurance Companies, Inc. — Imperial Standard Silver · $501.43/mo · deductible $6,000 · MOOP $8,900
- Antidote Health Plan of Arizona, Inc. — Silver Complete+Dental 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx · $509.53/mo · deductible $7,500 · MOOP $10,600
See the San Tan Valley city page with stats and ZIP codes →
Source: PY2026 QHP Landscape, Individual Market Medical (CMS Public Use File, released May 2026).