Data / Rankings / Uninsured rate, under 65 (US model-based estimate) / Counties in Pennsylvania

Counties in Pennsylvania by uninsured rate, under 65 (US model-based estimate)

Lancaster County had the highest uninsured rate, under 65 (US model-based estimate) of 67 counties in 2018, at 12.1%. Montgomery County had the lowest, at 4.6%. The median was 6.7% and the figure for Pennsylvania was 6.7%. Source: the U.S. Census Bureau.

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Highest12.1Lancaster County
Lowest4.6Montgomery County
Median6.767 counties
Pennsylvania6.7History

Map of counties, 2018

Adams County: 7.1 %Allegheny County: 5 %Armstrong County: 6.5 %Beaver County: 5.1 %Bedford County: 7.4 %Berks County: 7.5 %Blair County: 6.3 %Bradford County: 6.7 %Bucks County: 5.2 %Butler County: 4.6 %Cambria County: 5.4 %Cameron County: 5.9 %Carbon County: 6.2 %Centre County: 6.8 %Chester County: 5.9 %Clarion County: 8 %Clearfield County: 6.4 %Clinton County: 7.4 %Columbia County: 6.2 %Crawford County: 8.2 %Cumberland County: 6 %Dauphin County: 6.8 %Delaware County: 6.1 %Elk County: 5.1 %Erie County: 6 %Fayette County: 6.2 %Forest County: 7.1 %Franklin County: 8.9 %Fulton County: 7 %Greene County: 6.5 %Huntingdon County: 6.6 %Indiana County: 8.1 %Jefferson County: 7 %Juniata County: 8.5 %Lackawanna County: 6.6 %Lancaster County: 12.1 %Lawrence County: 6.1 %Lebanon County: 8.3 %Lehigh County: 7.7 %Luzerne County: 6.5 %Lycoming County: 6.7 %McKean County: 6.3 %Mercer County: 6.9 %Mifflin County: 8.8 %Monroe County: 7.6 %Montgomery County: 4.6 %Montour County: 5 %Northampton County: 6 %Northumberland County: 6.9 %Perry County: 8.5 %Philadelphia County: 8.7 %Pike County: 7 %Potter County: 7.2 %Schuylkill County: 6.5 %Snyder County: 9.2 %Somerset County: 8.1 %Sullivan County: 8.5 %Susquehanna County: 7.6 %Tioga County: 7 %Union County: 7.8 %Venango County: 7 %Warren County: 5.9 %Washington County: 4.7 %Wayne County: 7.5 %Westmoreland County: 4.8 %Wyoming County: 6 %York County: 6.5 %
  • Under 5.9
  • 5.9 to 6.3
  • 6.3 to 6.7
  • 6.7 to 7.1
  • 7.1 to 8.1
  • 8.1 and over
%, 2018. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2018

Lancaster County: 12.1 %Lancaster County12.1Snyder County: 9.2 %Snyder County9.2Franklin County: 8.9 %Franklin County8.9Mifflin County: 8.8 %Mifflin County8.8Philadelphia County: 8.7 %Philadelphia County8.7Juniata County: 8.5 %Juniata County8.5Perry County: 8.5 %Perry County8.5Sullivan County: 8.5 %Sullivan County8.5Lebanon County: 8.3 %Lebanon County8.3Crawford County: 8.2 %Crawford County8.2Indiana County: 8.1 %Indiana County8.1Somerset County: 8.1 %Somerset County8.1Clarion County: 8 %Clarion County8Union County: 7.8 %Union County7.8Lehigh County: 7.7 %Lehigh County7.7Monroe County: 7.6 %Monroe County7.6Susquehanna County: 7.6 %Susquehanna County7.6Berks County: 7.5 %Berks County7.5Wayne County: 7.5 %Wayne County7.5Bedford County: 7.4 %Bedford County7.4Clinton County: 7.4 %Clinton County7.4Potter County: 7.2 %Potter County7.2Adams County: 7.1 %Adams County7.1Forest County: 7.1 %Forest County7.1Fulton County: 7 %Fulton County7Jefferson County: 7 %Jefferson County7Pike County: 7 %Pike County7Tioga County: 7 %Tioga County7Venango County: 7 %Venango County7Mercer County: 6.9 %Mercer County6.9Northumberland County: 6.9 %Northumberland County6.9Centre County: 6.8 %Centre County6.8Dauphin County: 6.8 %Dauphin County6.8Bradford County: 6.7 %Bradford County6.7Lycoming County: 6.7 %Lycoming County6.7Huntingdon County: 6.6 %Huntingdon County6.6Lackawanna County: 6.6 %Lackawanna County6.6Armstrong County: 6.5 %Armstrong County6.5Greene County: 6.5 %Greene County6.5Luzerne County: 6.5 %Luzerne County6.5Lancaster County: 12.1 %Lancaster County12.1Snyder County: 9.2 %Snyder County9.2Franklin County: 8.9 %Franklin County8.9Mifflin County: 8.8 %Mifflin County8.8Philadelphia County: 8.7 %Philadelphia County8.7Juniata County: 8.5 %Juniata County8.5Perry County: 8.5 %Perry County8.5Sullivan County: 8.5 %Sullivan County8.5Lebanon County: 8.3 %Lebanon County8.3Crawford County: 8.2 %Crawford County8.2Indiana County: 8.1 %Indiana County8.1Somerset County: 8.1 %Somerset County8.1Clarion County: 8 %Clarion County8Union County: 7.8 %Union County7.8Lehigh County: 7.7 %Lehigh County7.7Monroe County: 7.6 %Monroe County7.6Susquehanna County: 7.6 %Susquehanna County7.6Berks County: 7.5 %Berks County7.5Wayne County: 7.5 %Wayne County7.5Bedford County: 7.4 %Bedford County7.4Clinton County: 7.4 %Clinton County7.4Potter County: 7.2 %Potter County7.2Adams County: 7.1 %Adams County7.1Forest County: 7.1 %Forest County7.1Fulton County: 7 %Fulton County7Jefferson County: 7 %Jefferson County7Pike County: 7 %Pike County7Tioga County: 7 %Tioga County7Venango County: 7 %Venango County7Mercer County: 6.9 %Mercer County6.9Northumberland County: 6.9 %Northumberland County6.9Centre County: 6.8 %Centre County6.8Dauphin County: 6.8 %Dauphin County6.8Bradford County: 6.7 %Bradford County6.7Lycoming County: 6.7 %Lycoming County6.7Huntingdon County: 6.6 %Huntingdon County6.6Lackawanna County: 6.6 %Lackawanna County6.6Armstrong County: 6.5 %Armstrong County6.5Greene County: 6.5 %Greene County6.5Luzerne County: 6.5 %Luzerne County6.5
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Lancaster County12.1+0.1 pts
2Snyder County9.2+0.5 pts
3Franklin County8.9+1.1 pts
4Mifflin County8.8-0.4 pts
5Philadelphia County8.7+0.5 pts
6Juniata County8.5-0.3 pts
6Perry County8.5+0.9 pts
6Sullivan County8.5-0.1 pts
9Lebanon County8.3-0.4 pts
10Crawford County8.2+0.2 pts
11Indiana County8.1+0.8 pts
11Somerset County8.1+1.1 pts
13Clarion County8+0.2 pts
14Union County7.8+0.3 pts
15Lehigh County7.7+0.2 pts
16Monroe County7.6+0.1 pts
16Susquehanna County7.6-0.2 pts
18Berks County7.50 pts
18Wayne County7.5-0.1 pts
20Bedford County7.4+0.5 pts
20Clinton County7.4-0.2 pts
22Potter County7.2+0.2 pts
23Adams County7.1-0.4 pts
23Forest County7.1+0.3 pts
25Fulton County7-0.5 pts
25Jefferson County7-0.6 pts
25Pike County7-0.2 pts
25Tioga County7-0.8 pts
25Venango County7+0.6 pts
30Mercer County6.9+0.5 pts
30Northumberland County6.9+0.2 pts
32Centre County6.8+0.1 pts
32Dauphin County6.8+0.1 pts
34Bradford County6.7-1.2 pts
34Lycoming County6.70 pts
36Huntingdon County6.6+0.7 pts
36Lackawanna County6.6+0.5 pts
38Armstrong County6.5+0.8 pts
38Greene County6.5+0.7 pts
38Luzerne County6.5-0.1 pts
38Schuylkill County6.5+0.3 pts
38York County6.50 pts
43Clearfield County6.4-0.7 pts
44Blair County6.3+0.5 pts
44McKean County6.30 pts
46Carbon County6.2+0.2 pts
46Columbia County6.2+0.4 pts
46Fayette County6.2-0.1 pts
49Delaware County6.1+0.5 pts
49Lawrence County6.10 pts
51Cumberland County6-0.6 pts
51Erie County6-0.4 pts
51Northampton County6-0.1 pts
51Wyoming County6-0.4 pts
55Cameron County5.9-0.4 pts
55Chester County5.9-0.4 pts
55Warren County5.9-0.1 pts
58Cambria County5.40 pts
59Bucks County5.2-0.1 pts
60Beaver County5.1+0.2 pts
60Elk County5.1-0.2 pts
62Allegheny County5+0.1 pts
62Montour County5-0.6 pts
64Westmoreland County4.8-0.1 pts
65Washington County4.7-0.1 pts
66Butler County4.60 pts
66Montgomery County4.6-0.1 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. 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. People 65 and over are left out because nearly all of them have Medicare.

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, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-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, under 65, all races, both sexes, all income levels, states and counties (Counties in Pennsylvania by uninsured rate, under 65 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Pennsylvania by uninsured rate, under 65 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/pennsylvania-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in Pennsylvania by uninsured rate, under 65 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/pennsylvania-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Pennsylvania by uninsured rate, under 65 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/pennsylvania-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_pennsylvania_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Pennsylvania by uninsured rate, under 65 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/pennsylvania-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Pennsylvania by uninsured rate, under 65 (US model-based estimate), 2018
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-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/pennsylvania-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/pennsylvania-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Lancaster County, with 12.1% in 2018, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Montgomery County, with 4.6% in 2018.

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, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in Pennsylvania: more rankings