Idaho Health Insurance Guide

Health Insurance Overview in Idaho

Idaho operates Your Health Idaho, a state-based marketplace. Idaho expanded Medicaid in 2020 after voters approved expansion through a ballot initiative in 2018 — the governor and legislature had previously resisted expansion. Idaho also allows non-ACA compliant 'state-based plans' that are not subject to all ACA requirements, creating a two-tier market.

Average Health Insurance Costs in Idaho

Health insurance premiums in Idaho vary significantly based on age, plan type (Bronze, Silver, Gold, Platinum), insurer, and income-based subsidies. The figures below represent estimated 2026 benchmark premiums before ACA subsidies for a 40-year-old individual and family of four.

Coverage Type	Monthly Premium	Annual Premium
Individual (benchmark Silver)	$448/mo	$5376/yr
Family of Four (benchmark Silver)	$1,282/mo	$15384/yr
Avg. Annual Deductible	$4,600

Premiums shown are before ACA subsidies. Most marketplace enrollees receive premium tax credits that significantly reduce these costs. Use our Health Insurance Calculator to estimate your net premium after subsidies.

Marketplace Enrollment in Idaho

Idaho residents can enroll in individual and family health insurance plans through Your Health Idaho (State-Based). Open enrollment runs November 1 – December 15 (Your Health Idaho — shorter than federal). Outside of open enrollment, a qualifying life event (job loss, marriage, birth of a child, move to a new state) triggers a Special Enrollment Period during which you can enroll or change plans.

Average Premiums by City in Idaho

Health insurance premiums vary by location within Idaho, reflecting local healthcare costs, provider availability, and insurer competition. The following estimated monthly individual premiums are based on a benchmark Silver plan for a 40-year-old non-smoker.

City	Est. Monthly Premium (Silver, age 40)
Boise	$455/mo
Meridian	$450/mo
Nampa	$445/mo
Idaho Falls	$438/mo
Pocatello	$435/mo
Coeur d'Alene	$452/mo

Medicaid in Idaho

Idaho Medicaid expanded in 2020, covering adults with incomes up to 138% of the federal poverty level following voter approval in 2018.

Children's Health Insurance (CHIP) in Idaho

Idaho CHIP covers children under 19 in families with incomes up to 185% of the federal poverty level.

What Makes Idaho Unique

Idaho's voter-approved Medicaid expansion and its parallel system of state-based health plans (that are not ACA-compliant) represent an unusual dual-market approach. The state-based plans can exclude pre-existing conditions and have benefit limitations, but are priced lower. Consumers choosing these plans should understand they do not have the same protections as ACA-compliant marketplace plans.

ACA Subsidies: What Idaho Residents Should Know

Premium tax credits (subsidies) are available for Idaho residents who purchase coverage through the marketplace and have incomes between 100% and 400% of the federal poverty level (or higher in states with additional state subsidies). The subsidy amount is based on the cost of the benchmark Silver plan in your area and your income. For 2026, the enhanced subsidies first enacted in the American Rescue Plan have been extended, providing more substantial assistance across a broader income range than before.

Cost-sharing reductions (CSRs) provide additional savings on deductibles and copays for those who enroll in Silver plans with incomes between 100-250% of the federal poverty level. Silver plans with CSRs often provide Gold or Platinum-level value at Silver premiums, making them the best value for eligible enrollees.

Tips for Choosing Health Insurance in Idaho

Idaho residents should be cautious about non-ACA-compliant state-based plans — they may not cover pre-existing conditions and can deny coverage or charge higher rates based on health status. ACA-compliant plans through Your Health Idaho provide full consumer protections. Note Idaho's shorter open enrollment period (through December 15).

• Enroll during open enrollment (November 1 – December 15 (Your Health Idaho — shorter than federal)) — missing the deadline means waiting until the next open enrollment unless you have a qualifying life event.
• Check both Medicaid eligibility and marketplace subsidy eligibility — your income determines which program you qualify for.
• Don't just compare premiums — also compare deductibles, out-of-pocket maximums, and whether your doctors are in-network.
• Silver plans with cost-sharing reductions (for incomes 100-250% FPL) typically offer the best overall value despite higher premiums than Bronze plans.
• Use our Health Insurance Calculator to estimate your total annual cost (premium + expected out-of-pocket) for different plan options.

The information on this page is provided for general informational purposes only and reflects estimated industry averages and program eligibility rules as of 2026. Health insurance premiums, Medicaid eligibility thresholds, marketplace options, and program rules change annually. Always verify current eligibility and enrollment options at the official Your Health Idaho (State-Based) or by contacting a certified navigator or broker. Premium figures shown are approximations before subsidies — actual net premiums depend on individual income, household size, and plan selection.