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Areas with the Highest Uninsured Rates

US counties ranked by uninsured rate — the share of residents with no health insurance coverage. Uninsured rates vary significantly by state due to Medicaid expansion decisions and differ by income, employment, and immigration status. Data from US Census Bureau ACS 2023.

Ranked by Uninsured Rate. Click any location to see its full Census data profile. All figures are from the U.S. Census Bureau ACS 5-Year Estimates, 2023, so they are directly comparable across locations.

# Location Uninsured Rate
401 Bolivar County, Mississippi 13.6%
402 Taliaferro County, Georgia 13.6%
403 Murray County, Georgia 13.6%
404 Edgar County, Illinois 13.6%
405 Boundary County, Idaho 13.6%
406 Barry County, Missouri 13.6%
407 Buffalo County, South Dakota 13.6%
408 Knox County, Ohio 13.6%
409 Hamblen County, Tennessee 13.6%
410 Stephens County, Georgia 13.5%
411 Lawrence County, Mississippi 13.5%
412 Dewey County, Oklahoma 13.5%
413 Otero County, New Mexico 13.5%
414 Marion County, Kansas 13.4%
415 Davie County, North Carolina 13.4%
416 Treutlen County, Georgia 13.4%
417 Cumberland County, North Carolina 13.4%
418 Reynolds County, Missouri 13.4%
419 Stephens County, Oklahoma 13.4%
420 Carroll County, Arkansas 13.4%
421 Sanders County, Montana 13.4%
422 Culebra Municipio, Puerto Rico 13.3%
423 Broward County, Florida 13.3%
424 Grant County, Washington 13.3%
425 Butler County, Missouri 13.3%
426 Haralson County, Georgia 13.3%
427 Spalding County, Georgia 13.3%
428 Anson County, North Carolina 13.3%
429 Sumter County, Georgia 13.3%
430 Sevier County, Tennessee 13.3%
431 Palm Beach County, Florida 13.2%
432 Hardin County, Tennessee 13.2%
433 Walker County, Georgia 13.2%
434 Carter County, Montana 13.2%
435 Upshur County, Texas 13.2%
436 Grundy County, Tennessee 13.2%
437 Donley County, Texas 13.2%
438 Oscoda County, Michigan 13.2%
439 Towns County, Georgia 13.2%
440 Tunica County, Mississippi 13.1%
441 Union County, Ohio 13.1%
442 Morris County, Texas 13.1%
443 Montgomery County, North Carolina 13.1%
444 Cape Girardeau County, Missouri 13.1%
445 Noxubee County, Mississippi 13.1%
446 Woodward County, Oklahoma 13.1%
447 Switzerland County, Indiana 13.1%
448 Dawson County, Georgia 13.1%
449 Turner County, Georgia 13.1%
450 Pottawatomie County, Oklahoma 13.1%