Health insurance premiums on the ACA Marketplace vary by a factor of 3-4x between the cheapest and most expensive states. A 40-year-old pays around $350/month for a benchmark Silver plan in New Hampshire and over $1,100/month for the same plan in Wyoming. Understanding where your state falls -- and how subsidies change the picture -- is essential for smart plan shopping.
The benchmark Silver plan is the second-lowest-cost Silver plan in your area. It's used to calculate your Premium Tax Credit subsidy. These are 2026 estimates for a 40-year-old non-smoker:
| State | Monthly Premium | Annual Premium |
|---|---|---|
| New Hampshire | $348 | $4,176 |
| Maryland | $362 | $4,344 |
| Minnesota | $371 | $4,452 |
| Massachusetts | $384 | $4,608 |
| Indiana | $391 | $4,692 |
| Georgia | $398 | $4,776 |
| Tennessee | $403 | $4,836 |
| Ohio | $411 | $4,932 |
| Pennsylvania | $418 | $5,016 |
| Michigan | $422 | $5,064 |
| State | Monthly Premium | Annual Premium |
|---|---|---|
| Wyoming | $1,138 | $13,656 |
| Alaska | $996 | $11,952 |
| West Virginia | $884 | $10,608 |
| Nebraska | $827 | $9,924 |
| Vermont | $798 | $9,576 |
| South Dakota | $771 | $9,252 |
| North Dakota | $748 | $8,976 |
| Montana | $731 | $8,772 |
| Iowa | $718 | $8,616 |
| Kansas | $706 | $8,472 |
Important: Wyoming is over 3x more expensive than New Hampshire before subsidies. Rural states with limited insurer competition dominate the expensive end of the spectrum.
Subsidies flip the script. Your Premium Tax Credit is designed to cap your benchmark Silver premium at a fixed percentage of your income -- regardless of what the actual premium is. In expensive states with high benchmark premiums, subsidies are larger. This means low-to-moderate income households in expensive states often pay similar net premiums to those in cheap states.
Note: Example: A family of 3 earning $60,000 in Wyoming gets a much larger subsidy than the same family in New Hampshire -- because Wyoming's premium is much higher. Their net out-of-pocket cost may be nearly identical. The subsidy absorbs the state's expensiveness.
| State | Full Premium | Estimated Subsidy | Net Premium |
|---|---|---|---|
| Wyoming | $1,138/mo | $1,009/mo | $129/mo |
| New Hampshire | $348/mo | $219/mo | $129/mo |
| National average | $580/mo | $451/mo | $129/mo |
At $45,000 income (about 310% FPL), the income cap percentage is roughly 8.5% -- meaning this person pays no more than $318/month (8.5% x $45,000 / 12) regardless of state. The subsidy covers the rest.
States with more insurers competing have lower premiums. Wyoming, Alaska, and West Virginia frequently have only 1-2 insurers offering ACA plans in many counties, eliminating competitive pressure to lower prices.
States that expanded Medicaid (38 states + DC) have lower-risk ACA pools because lower-income and sicker individuals qualify for Medicaid instead of Marketplace plans. Non-expansion states (primarily in the South) have higher-risk, higher-cost ACA pools.
Hospital and physician costs vary enormously by region. States with high healthcare prices (the Northeast, West Coast) have correspondingly higher insurance premiums. Rural states have fewer providers and less price competition among hospitals.
States with older, sicker insured populations have higher claim rates and higher premiums. West Virginia, which has high rates of obesity, diabetes, and opioid addiction, consistently has among the highest health insurance premiums in the country.
States that run their own exchanges (California, New York, Massachusetts, Washington, Colorado, and others) often have stronger competition, better consumer tools, and sometimes lower premiums than states using the federal Healthcare.gov exchange.
A 40-year-old earning $38,000/year (roughly 235% of the federal poverty level for a single person) will see very different net premiums depending on which state they live in, even though the subsidy formula itself is federal:
| Low-Cost State | High-Cost State | |
|---|---|---|
| Gross benchmark Silver premium | $420/month | $680/month |
| Expected contribution at this income | $135/month | $135/month |
| Premium tax credit | $285/month | $545/month |
| Net premium (same across metal tiers) | As low as $135/month | As low as $135/month |
This is the detail that surprises a lot of people comparing states: because the subsidy is calculated as the gap between the benchmark premium and your expected contribution, your actual out-of-pocket net premium can end up nearly identical in a cheap state and an expensive one, as long as your income and household size are the same. The state-level cost difference mostly shows up in what happens if you earn too much to qualify for a subsidy, or if you choose a plan above the benchmark tier -- that's when the underlying gross premium differences actually hit your wallet directly.
States that expanded Medicaid under the ACA extend free or near-free coverage to adults earning up to 138% of the federal poverty level. In non-expansion states, adults below the poverty line who don't qualify for traditional Medicaid can fall into a coverage gap -- earning too little to qualify for ACA marketplace subsidies (which start at 100% FPL) but too much for their state's more restrictive Medicaid program. This gap affects hundreds of thousands of people in non-expansion states and has nothing to do with a state's benchmark premium -- it's a purely structural difference in program eligibility.
Before assuming marketplace shopping is your only option, check your state's specific Medicaid expansion status and income thresholds at healthcare.gov, which screens marketplace applications for Medicaid eligibility automatically and routes qualifying applicants to the correct program.
Age rating rules are federal, but their dollar impact varies by state because it's applied on top of a different local benchmark premium in each market -- meaning the absolute size of the age-related increase differs even though the percentage rules are the same everywhere.
The state rankings above are for a 40-year-old. Older applicants (age 60+) pay up to 3x more than 21-year-olds -- but the relative state rankings stay roughly the same. The cheapest states for a 40-year-old are generally also the cheapest for a 60-year-old.
Younger people have more options to consider: ACA Catastrophic plans are available for those under 30 and combine low premiums with ACA consumer protections. These are worth comparing against Bronze plans if you're young and healthy.
If you're relocating for work or considering a move for cost-of-living reasons, it's worth running your specific income and household size through your destination state's marketplace before finalizing the decision, since the interaction between local benchmark premiums, your subsidy amount, and your state's Medicaid expansion status can meaningfully change your total healthcare budget in ways a simple cost-of-living comparison won't capture. A move that looks favorable on rent and groceries alone can look very different once healthcare costs are factored in accurately.