The Cheapest States for Obamacare in 2021

Updated on August 19, 2025
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Michael LaPick

Written by Michael LaPick

Healthcare Writer

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Key Findings

  • The average national benchmark premium in 2021 is $443 per month.
  • The premium fell by 1.7% in 2021, for the third straight drop since 2019.
  • Benchmark premiums fell in 43 states in 2021.

The cost of Obamacare (aka the Affordable Care Act) plans fell for a third straight year in 2021.

That’s according to new data analyzed by the Urban Institute. 

The report shows that the national average benchmark premium offered under the Affordable Care Act fell by 1.7% from 2020 to 2021. (The benchmark plan is the second-cheapest silver plan in an area.)

That follows a 3.2% fall in 2020 and a 1.2% drop in 2019. 

Easing prices come after a 31.9% jump in 2018 following the Trump administration’s announcement that the government would no longer reimburse insurers for cost-sharing reductions.

The Urban Institute looked at the cost of benchmark silver plan premiums for a 40-year-old nonsmoker, using data from Healthcare.gov for 36 states and from 15 state Marketplace websites. 

Easing costs for Obamacare plans contrast with 4% hikes in costs for employer-sponsored health insurance in 2019 and 2020.

 

States with the Cheapest Obamacare in 2021

At $292 per year, Minnesota has the cheapest average benchmark premium in 2021.

Minnesota’s premium is more than $150 less than the average national benchmark premium of $443 per month (before a tax credit).

The five cheapest states for premiums in 2021 are:

The five priciest states for premiums in 2021 are:

In total, average premiums for health insurance throughout the country fell in 43 states in 2021.

The Urban Institute says that premiums tend to be lower in states with higher numbers of competing insurers, states that expanded Medicaid and adopted reinsurance, and those with less hospital consolidation. 

Affordable Care Act Benchmark Premiums 2017-2021

Premiums Shaped by Market Competition and Local Policies

Rising competition helped to slow premium growth. 

In both 2020 and 2021, the Urban Institute says insurers boosted their participation in Marketplaces and added plans in new states.

The analysis shows the number of insurers participating in the Marketplace grew from 166 in 2017 to 224 in 2021. 

State policy moves like reinsurance programs also helped to slow the rise in premiums, as did the expansion of Medicaid.

The effect of the COVID-19 pandemic on the Marketplace remains to be seen. But the Urban Institute says it left insurers with surpluses as Americans put off non-essential medical care.

ACA Benchmark Premiums Ranked by Cheapest Plan in 2021

State 2017 2018 2019 2020 2021 Rank
Minnesota $442 $380 $333 $312 $292 1
New Hampshire $267 $475 $402 $405 $325 2
Rhode Island $261 $311 $336 $332 $328 3
New Mexico $255 $424 $366 $346 $329 4
Michigan $265 $368 $373 $351 $335 5
Maryland $309 $456 $419 $397 $339 6
Colorado $340 $438 $496 $374 $351 7
Massachusetts $252 $315 $330 $354 $355 8
Ohio $263 $364 $367 $360 $358 9
New Jersey $339 $411 $348 $389 $367 10
Washington $247 $336 $388 $389 $374 11
District of Columbia $298 $324 $393 $414 $384 12
Arkansas $302 $364 $380 $365 $387 13
Nevada $303 $431 $412 $379 $387 14
California $335 $424 $446 $426 $397 15
Indiana $275 $344 $338 $392 $398 16
North Dakota $334 $309 $396 $333 $410 17
Texas $287 $404 $419 $415 $410 18
Arizona $539 $517 $464 $438 $411 19
Illinois $356 $488 $474 $425 $413 20
Oregon $321 $395 $433 $439 $418 21
Maine $378 $575 $531 $499 $430 22
Wisconsin $359 $524 $519 $478 $432 23
Montana $450 $522 $553 $472 $434 24
Pennsylvania $369 $526 $457 $440 $440 25
Georgia $320 $489 $457 $438 $442 26
US average $357 $472 $466 $451 $443 27
Kentucky $266 $401 $433 $460 $444 28
Florida $336 $476 $485 $472 $449 29
Tennessee $471 $741 $546 $509 $451 30
Mississippi $332 $520 $521 $484 $457 31
Missouri $369 $520 $491 $479 $462 32
Utah $311 $550 $539 $481 $463 33
Hawaii $347 $456 $503 $471 $467 34
Kansas $362 $485 $528 $486 $469 35
Virginia $318 $524 $558 $517 $470 36
South Carolina $390 $524 $557 $509 $471 37
Iowa $332 $756 $731 $689 $474 38
Oklahoma $503 $658 $661 $546 $485 39
North Carolina $540 $618 $611 $543 $489 40
Louisiana $413 $487 $461 $497 $492 41
Idaho $355 $479 $486 $521 $494 42
Connecticut $436 $541 $472 $565 $519 43
Delaware $423 $591 $685 $548 $522 44
Alabama $468 $556 $544 $551 $550 45
Vermont $492 $505 $517 $662 $574 46
New York $454 $498 $566 $591 $575 47
South Dakota $457 $495 $526 $562 $575 48
Nebraska $474 $757 $747 $676 $579 49
West Virginia $462 $532 $585 $622 $641 50
Alaska $927 $727 $714 $721 $674 51
Wyoming $501 $861 $860 $877 $782 52

Source: "Marketplace Premiums and Participation in 2021." urban.org. (Accessed June 15, 2021)

Michael LaPick
About the author

Michael LaPick

Healthcare Writer

Michael LaPick is a healthcare and Medicare data researcher at HealthCare.com, where he develops educational resources for HealthcareInsider.com and MedicareGuide.com. He has over five years of specialized experience researching Medicare, the Affordable Care Act (ACA), and private health insurance, helping consumers make confident, informed coverage decisions.

His work draws on a background in investigative journalism, having reported for the Poughkeepsie Journal and WAMC/NPR Albany on how Americans spend and manage money. This blend of investigative rigor and healthcare expertise gives Michael a unique perspective in translating complex policy data into actionable guidance for readers.

Michael’s research and articles are widely cited across healthcare publications, strengthening his role as a trusted authority in the insurance space.


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