Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Pennsylvania

Counties in Pennsylvania by uninsured rate, ages 18 to 64 (US model-based estimate)

Juniata County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 67 counties in 2021, at 11.5%. Montgomery County had the lowest, at 5.2%. The median was 7.6% and the figure for Pennsylvania was 7.5%. Source: the U.S. Census Bureau.

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Highest11.5Juniata County
Lowest5.2Montgomery County
Median7.667 counties
Pennsylvania7.5History

Map of counties, 2021

Adams County: 8.2 %Allegheny County: 5.7 %Armstrong County: 6.4 %Beaver County: 6.2 %Bedford County: 8.9 %Berks County: 8.8 %Blair County: 7.6 %Bradford County: 8.7 %Bucks County: 5.4 %Butler County: 5.3 %Cambria County: 6.7 %Cameron County: 7.5 %Carbon County: 7 %Centre County: 7.1 %Chester County: 6 %Clarion County: 8.3 %Clearfield County: 7.9 %Clinton County: 8.9 %Columbia County: 6.6 %Crawford County: 9.3 %Cumberland County: 6.6 %Dauphin County: 7.8 %Delaware County: 6.5 %Elk County: 6.7 %Erie County: 7 %Fayette County: 7.5 %Forest County: 6.2 %Franklin County: 9.5 %Fulton County: 6.7 %Greene County: 7.7 %Huntingdon County: 7.4 %Indiana County: 8.8 %Jefferson County: 9.6 %Juniata County: 11.5 %Lackawanna County: 7.4 %Lancaster County: 11.3 %Lawrence County: 7.8 %Lebanon County: 8.6 %Lehigh County: 9.8 %Luzerne County: 8.9 %Lycoming County: 7.2 %McKean County: 7.3 %Mercer County: 7.5 %Mifflin County: 10.3 %Monroe County: 8.2 %Montgomery County: 5.2 %Montour County: 5.7 %Northampton County: 7 %Northumberland County: 6.7 %Perry County: 9.4 %Philadelphia County: 9.9 %Pike County: 6.9 %Potter County: 8.8 %Schuylkill County: 7.7 %Snyder County: 9.7 %Somerset County: 8.9 %Sullivan County: 9.5 %Susquehanna County: 9.2 %Tioga County: 7.9 %Union County: 8.9 %Venango County: 7.9 %Warren County: 6.9 %Washington County: 5.7 %Wayne County: 8.6 %Westmoreland County: 5.4 %Wyoming County: 6.6 %York County: 7.1 %
  • Under 6.5
  • 6.5 to 7
  • 7 to 7.6
  • 7.6 to 8.6
  • 8.6 to 9.2
  • 9.2 and over
%, 2021. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Juniata County: 11.5 %Juniata County11.5Lancaster County: 11.3 %Lancaster County11.3Mifflin County: 10.3 %Mifflin County10.3Philadelphia County: 9.9 %Philadelphia County9.9Lehigh County: 9.8 %Lehigh County9.8Snyder County: 9.7 %Snyder County9.7Jefferson County: 9.6 %Jefferson County9.6Franklin County: 9.5 %Franklin County9.5Sullivan County: 9.5 %Sullivan County9.5Perry County: 9.4 %Perry County9.4Crawford County: 9.3 %Crawford County9.3Susquehanna County: 9.2 %Susquehanna County9.2Bedford County: 8.9 %Bedford County8.9Clinton County: 8.9 %Clinton County8.9Luzerne County: 8.9 %Luzerne County8.9Somerset County: 8.9 %Somerset County8.9Union County: 8.9 %Union County8.9Berks County: 8.8 %Berks County8.8Indiana County: 8.8 %Indiana County8.8Potter County: 8.8 %Potter County8.8Bradford County: 8.7 %Bradford County8.7Lebanon County: 8.6 %Lebanon County8.6Wayne County: 8.6 %Wayne County8.6Clarion County: 8.3 %Clarion County8.3Adams County: 8.2 %Adams County8.2Monroe County: 8.2 %Monroe County8.2Clearfield County: 7.9 %Clearfield County7.9Tioga County: 7.9 %Tioga County7.9Venango County: 7.9 %Venango County7.9Dauphin County: 7.8 %Dauphin County7.8Lawrence County: 7.8 %Lawrence County7.8Greene County: 7.7 %Greene County7.7Schuylkill County: 7.7 %Schuylkill County7.7Blair County: 7.6 %Blair County7.6Cameron County: 7.5 %Cameron County7.5Fayette County: 7.5 %Fayette County7.5Mercer County: 7.5 %Mercer County7.5Huntingdon County: 7.4 %Huntingdon County7.4Lackawanna County: 7.4 %Lackawanna County7.4McKean County: 7.3 %McKean County7.3Juniata County: 11.5 %Juniata County11.5Lancaster County: 11.3 %Lancaster County11.3Mifflin County: 10.3 %Mifflin County10.3Philadelphia County: 9.9 %Philadelphia County9.9Lehigh County: 9.8 %Lehigh County9.8Snyder County: 9.7 %Snyder County9.7Jefferson County: 9.6 %Jefferson County9.6Franklin County: 9.5 %Franklin County9.5Sullivan County: 9.5 %Sullivan County9.5Perry County: 9.4 %Perry County9.4Crawford County: 9.3 %Crawford County9.3Susquehanna County: 9.2 %Susquehanna County9.2Bedford County: 8.9 %Bedford County8.9Clinton County: 8.9 %Clinton County8.9Luzerne County: 8.9 %Luzerne County8.9Somerset County: 8.9 %Somerset County8.9Union County: 8.9 %Union County8.9Berks County: 8.8 %Berks County8.8Indiana County: 8.8 %Indiana County8.8Potter County: 8.8 %Potter County8.8Bradford County: 8.7 %Bradford County8.7Lebanon County: 8.6 %Lebanon County8.6Wayne County: 8.6 %Wayne County8.6Clarion County: 8.3 %Clarion County8.3Adams County: 8.2 %Adams County8.2Monroe County: 8.2 %Monroe County8.2Clearfield County: 7.9 %Clearfield County7.9Tioga County: 7.9 %Tioga County7.9Venango County: 7.9 %Venango County7.9Dauphin County: 7.8 %Dauphin County7.8Lawrence County: 7.8 %Lawrence County7.8Greene County: 7.7 %Greene County7.7Schuylkill County: 7.7 %Schuylkill County7.7Blair County: 7.6 %Blair County7.6Cameron County: 7.5 %Cameron County7.5Fayette County: 7.5 %Fayette County7.5Mercer County: 7.5 %Mercer County7.5Huntingdon County: 7.4 %Huntingdon County7.4Lackawanna County: 7.4 %Lackawanna County7.4McKean County: 7.3 %McKean County7.3
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Juniata County11.5-1.3 pts
2Lancaster County11.3-1.4 pts
3Mifflin County10.3-2 pts
4Philadelphia County9.9+0.1 pts
5Lehigh County9.8+0.3 pts
6Snyder County9.7-2.8 pts
7Jefferson County9.60 pts
8Franklin County9.5-2.2 pts
8Sullivan County9.5-1.2 pts
10Perry County9.4-2.9 pts
11Crawford County9.3-1.5 pts
12Susquehanna County9.2-1.2 pts
13Bedford County8.9-0.3 pts
13Clinton County8.9-2.1 pts
13Luzerne County8.9-0.4 pts
13Somerset County8.9-0.6 pts
13Union County8.9-3.9 pts
18Berks County8.8-1.5 pts
18Indiana County8.8-1.6 pts
18Potter County8.8-0.8 pts
21Bradford County8.7-0.6 pts
22Lebanon County8.6-2.1 pts
22Wayne County8.6+0.1 pts
24Clarion County8.3-2.2 pts
25Adams County8.2-0.5 pts
25Monroe County8.2-1.4 pts
27Clearfield County7.9-1 pts
27Tioga County7.9-1.7 pts
27Venango County7.9-0.6 pts
30Dauphin County7.8-1.6 pts
30Lawrence County7.8-1.5 pts
32Greene County7.7+0.2 pts
32Schuylkill County7.7-1.5 pts
34Blair County7.6-1.1 pts
35Cameron County7.5-1.3 pts
35Fayette County7.5-0.1 pts
35Mercer County7.5-1.7 pts
38Huntingdon County7.4-0.9 pts
38Lackawanna County7.4-1.6 pts
40McKean County7.3-0.7 pts
41Lycoming County7.2-2 pts
42Centre County7.1-2.4 pts
42York County7.1-1.5 pts
44Carbon County7-2.2 pts
44Erie County7-1.2 pts
44Northampton County70 pts
47Pike County6.9-1.2 pts
47Warren County6.9-1 pts
49Cambria County6.7-0.5 pts
49Elk County6.7-0.8 pts
49Fulton County6.7-1.9 pts
49Northumberland County6.7-1.7 pts
53Columbia County6.6-1.6 pts
53Cumberland County6.6-1.3 pts
53Wyoming County6.6-1.1 pts
56Delaware County6.5-0.9 pts
57Armstrong County6.4-1.7 pts
58Beaver County6.2-1 pts
58Forest County6.2-1.5 pts
60Chester County6-0.3 pts
61Allegheny County5.7-0.8 pts
61Montour County5.7-1.1 pts
61Washington County5.7-0.8 pts
64Bucks County5.4-1.5 pts
64Westmoreland County5.4-0.5 pts
66Butler County5.3-0.7 pts
67Montgomery County5.2-0.4 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Pennsylvania by uninsured rate, ages 18 to 64 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Pennsylvania by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Pennsylvania by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Pennsylvania by uninsured rate, ages 18 to 64 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_pennsylvania_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Pennsylvania by uninsured rate, ages 18 to 64 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Pennsylvania by uninsured rate, ages 18 to 64 (US model-based estimate), 2021
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Juniata County, with 11.5% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Montgomery County, with 5.2% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Pennsylvania: more rankings