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)

Lancaster County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 67 counties in 2017, at 11.2%. Butler County had the lowest, at 5.2%. The median was 7.5% and the figure for Pennsylvania was 7.4%. Source: the U.S. Census Bureau.

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Highest11.2Lancaster County
Lowest5.2Butler County
Median7.567 counties
Pennsylvania7.4History

Map of counties, 2017

Adams County: 8.5 %Allegheny County: 5.5 %Armstrong County: 6.5 %Beaver County: 5.7 %Bedford County: 7.5 %Berks County: 8.4 %Blair County: 6.6 %Bradford County: 8.8 %Bucks County: 6 %Butler County: 5.2 %Cambria County: 6.2 %Cameron County: 7 %Carbon County: 6.7 %Centre County: 7.1 %Chester County: 7 %Clarion County: 8.6 %Clearfield County: 8.2 %Clinton County: 8.2 %Columbia County: 6.5 %Crawford County: 8.7 %Cumberland County: 7.3 %Dauphin County: 7.5 %Delaware County: 6.5 %Elk County: 5.9 %Erie County: 7.5 %Fayette County: 7.2 %Forest County: 7.3 %Franklin County: 8.6 %Fulton County: 8.1 %Greene County: 6.5 %Huntingdon County: 6.7 %Indiana County: 7.7 %Jefferson County: 8.4 %Juniata County: 9.9 %Lackawanna County: 7.2 %Lancaster County: 11.2 %Lawrence County: 6.8 %Lebanon County: 9.6 %Lehigh County: 8.7 %Luzerne County: 7.5 %Lycoming County: 7.5 %McKean County: 7.2 %Mercer County: 7.1 %Mifflin County: 10.1 %Monroe County: 8.4 %Montgomery County: 5.4 %Montour County: 5.9 %Northampton County: 6.9 %Northumberland County: 7.6 %Perry County: 8 %Philadelphia County: 9.7 %Pike County: 7.9 %Potter County: 7.7 %Schuylkill County: 7.1 %Snyder County: 9.7 %Somerset County: 7.7 %Sullivan County: 9.1 %Susquehanna County: 8.9 %Tioga County: 8.7 %Union County: 8.2 %Venango County: 7.3 %Warren County: 6.6 %Washington County: 5.3 %Wayne County: 8.4 %Westmoreland County: 5.7 %Wyoming County: 7.1 %York County: 7.5 %
  • Under 6.5
  • 6.5 to 7.1
  • 7.1 to 7.5
  • 7.5 to 8.1
  • 8.1 to 8.7
  • 8.7 and over
%, 2017. 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, 2017

Lancaster County: 11.2 %Lancaster County11.2Mifflin County: 10.1 %Mifflin County10.1Juniata County: 9.9 %Juniata County9.9Philadelphia County: 9.7 %Philadelphia County9.7Snyder County: 9.7 %Snyder County9.7Lebanon County: 9.6 %Lebanon County9.6Sullivan County: 9.1 %Sullivan County9.1Susquehanna County: 8.9 %Susquehanna County8.9Bradford County: 8.8 %Bradford County8.8Crawford County: 8.7 %Crawford County8.7Lehigh County: 8.7 %Lehigh County8.7Tioga County: 8.7 %Tioga County8.7Clarion County: 8.6 %Clarion County8.6Franklin County: 8.6 %Franklin County8.6Adams County: 8.5 %Adams County8.5Berks County: 8.4 %Berks County8.4Jefferson County: 8.4 %Jefferson County8.4Monroe County: 8.4 %Monroe County8.4Wayne County: 8.4 %Wayne County8.4Clearfield County: 8.2 %Clearfield County8.2Clinton County: 8.2 %Clinton County8.2Union County: 8.2 %Union County8.2Fulton County: 8.1 %Fulton County8.1Perry County: 8 %Perry County8Pike County: 7.9 %Pike County7.9Indiana County: 7.7 %Indiana County7.7Potter County: 7.7 %Potter County7.7Somerset County: 7.7 %Somerset County7.7Northumberland County: 7.6 %Northumberland County7.6Bedford County: 7.5 %Bedford County7.5Dauphin County: 7.5 %Dauphin County7.5Erie County: 7.5 %Erie County7.5Luzerne County: 7.5 %Luzerne County7.5Lycoming County: 7.5 %Lycoming County7.5York County: 7.5 %York County7.5Cumberland County: 7.3 %Cumberland County7.3Forest County: 7.3 %Forest County7.3Venango County: 7.3 %Venango County7.3Fayette County: 7.2 %Fayette County7.2Lackawanna County: 7.2 %Lackawanna County7.2Lancaster County: 11.2 %Lancaster County11.2Mifflin County: 10.1 %Mifflin County10.1Juniata County: 9.9 %Juniata County9.9Philadelphia County: 9.7 %Philadelphia County9.7Snyder County: 9.7 %Snyder County9.7Lebanon County: 9.6 %Lebanon County9.6Sullivan County: 9.1 %Sullivan County9.1Susquehanna County: 8.9 %Susquehanna County8.9Bradford County: 8.8 %Bradford County8.8Crawford County: 8.7 %Crawford County8.7Lehigh County: 8.7 %Lehigh County8.7Tioga County: 8.7 %Tioga County8.7Clarion County: 8.6 %Clarion County8.6Franklin County: 8.6 %Franklin County8.6Adams County: 8.5 %Adams County8.5Berks County: 8.4 %Berks County8.4Jefferson County: 8.4 %Jefferson County8.4Monroe County: 8.4 %Monroe County8.4Wayne County: 8.4 %Wayne County8.4Clearfield County: 8.2 %Clearfield County8.2Clinton County: 8.2 %Clinton County8.2Union County: 8.2 %Union County8.2Fulton County: 8.1 %Fulton County8.1Perry County: 8 %Perry County8Pike County: 7.9 %Pike County7.9Indiana County: 7.7 %Indiana County7.7Potter County: 7.7 %Potter County7.7Somerset County: 7.7 %Somerset County7.7Northumberland County: 7.6 %Northumberland County7.6Bedford County: 7.5 %Bedford County7.5Dauphin County: 7.5 %Dauphin County7.5Erie County: 7.5 %Erie County7.5Luzerne County: 7.5 %Luzerne County7.5Lycoming County: 7.5 %Lycoming County7.5York County: 7.5 %York County7.5Cumberland County: 7.3 %Cumberland County7.3Forest County: 7.3 %Forest County7.3Venango County: 7.3 %Venango County7.3Fayette County: 7.2 %Fayette County7.2Lackawanna County: 7.2 %Lackawanna County7.2
%. 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

RankCounties2017 (%)Change on 2016
1Lancaster County11.2+1 pts
2Mifflin County10.1+0.4 pts
3Juniata County9.9+0.9 pts
4Philadelphia County9.7-2 pts
4Snyder County9.70 pts
6Lebanon County9.6+1.2 pts
7Sullivan County9.1+0.4 pts
8Susquehanna County8.9+0.6 pts
9Bradford County8.8+0.6 pts
10Crawford County8.7-0.1 pts
10Lehigh County8.7+0.4 pts
10Tioga County8.7+0.2 pts
13Clarion County8.6+0.9 pts
13Franklin County8.6-1.7 pts
15Adams County8.5+0.7 pts
16Berks County8.4+0.1 pts
16Jefferson County8.4+0.2 pts
16Monroe County8.40 pts
16Wayne County8.4+0.6 pts
20Clearfield County8.2+0.8 pts
20Clinton County8.2-0.4 pts
20Union County8.2-0.3 pts
23Fulton County8.1-0.3 pts
24Perry County8-0.4 pts
25Pike County7.9-0.5 pts
26Indiana County7.7-0.5 pts
26Potter County7.7-1.1 pts
26Somerset County7.7-0.6 pts
29Northumberland County7.6+0.7 pts
30Bedford County7.5-0.9 pts
30Dauphin County7.5-0.2 pts
30Erie County7.5+0.4 pts
30Luzerne County7.5+0.1 pts
30Lycoming County7.5+1 pts
30York County7.5+0.2 pts
36Cumberland County7.3+1 pts
36Forest County7.3+0.1 pts
36Venango County7.3-0.6 pts
39Fayette County7.2-0.4 pts
39Lackawanna County7.2+0.3 pts
39McKean County7.2+0.4 pts
42Centre County7.1-0.5 pts
42Mercer County7.1-0.3 pts
42Schuylkill County7.1+0.3 pts
42Wyoming County7.1+0.5 pts
46Cameron County7+0.3 pts
46Chester County7+0.3 pts
48Northampton County6.9-0.7 pts
49Lawrence County6.8-0.1 pts
50Carbon County6.7-0.3 pts
50Huntingdon County6.7-0.5 pts
52Blair County6.60 pts
52Warren County6.6-0.4 pts
54Armstrong County6.50 pts
54Columbia County6.5-1.1 pts
54Delaware County6.5-0.5 pts
54Greene County6.5+0.3 pts
58Cambria County6.2-0.6 pts
59Bucks County6+0.5 pts
60Elk County5.9+0.2 pts
60Montour County5.9+0.7 pts
62Beaver County5.7-0.7 pts
62Westmoreland County5.7+0.4 pts
64Allegheny County5.5-0.2 pts
65Montgomery County5.4+0.2 pts
66Washington County5.3-0.6 pts
67Butler County5.2+0.3 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-2017-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), 2017) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-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), 2017. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2017. 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), 2017. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2017.

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), 2017 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_pennsylvania_by_2017,
  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), 2017}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2017. 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-2017-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), 2017
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-2017-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/pennsylvania-counties?period=2017.
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-2017-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)?

Lancaster County, with 11.2% in 2017, according to the U.S. Census Bureau.

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

Butler County, with 5.2% in 2017.

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