Data / Rankings / Housing units / Counties in Pennsylvania

Counties in Pennsylvania by housing units

Philadelphia County had the highest housing units of 67 counties in 2023, at 739,725. Cameron County had the lowest, at 3,933. The median was 39,948 and the figure for Pennsylvania was 5.78 million. Source: the U.S. Census Bureau.

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Highest739,725Philadelphia County
Lowest3,933Cameron County
Median39,94867 counties
Pennsylvania5,779,663History

Map of counties, 2023

Adams County: 43,377 countAllegheny County: 604,558 countArmstrong County: 32,164 countBeaver County: 79,159 countBedford County: 23,568 countBerks County: 171,147 countBlair County: 55,788 countBradford County: 29,421 countBucks County: 256,416 countButler County: 86,399 countCambria County: 64,494 countCameron County: 3,933 countCarbon County: 34,299 countCentre County: 66,023 countChester County: 210,730 countClarion County: 18,878 countClearfield County: 38,160 countClinton County: 18,640 countColumbia County: 29,775 countCrawford County: 42,188 countCumberland County: 110,265 countDauphin County: 127,259 countDelaware County: 229,390 countElk County: 16,876 countErie County: 120,019 countFayette County: 62,060 countForest County: 6,969 countFranklin County: 66,787 countFulton County: 7,129 countGreene County: 16,182 countHuntingdon County: 20,932 countIndiana County: 37,672 countJefferson County: 22,053 countJuniata County: 10,502 countLackawanna County: 100,013 countLancaster County: 217,863 countLawrence County: 39,597 countLebanon County: 59,582 countLehigh County: 150,547 countLuzerne County: 151,012 countLycoming County: 52,692 countMcKean County: 19,493 countMercer County: 50,884 countMifflin County: 21,425 countMonroe County: 79,458 countMontgomery County: 348,696 countMontour County: 8,117 countNorthampton County: 128,612 countNorthumberland County: 43,395 countPerry County: 20,010 countPhiladelphia County: 739,725 countPike County: 39,948 countPotter County: 12,375 countSchuylkill County: 67,292 countSnyder County: 16,033 countSomerset County: 37,800 countSullivan County: 5,601 countSusquehanna County: 21,335 countTioga County: 21,542 countUnion County: 16,158 countVenango County: 26,203 countWarren County: 21,641 countWashington County: 97,476 countWayne County: 32,054 countWestmoreland County: 168,406 countWyoming County: 12,858 countYork County: 188,608 count
  • Under 17K
  • 17K to 24K
  • 24K to 40K
  • 40K to 67K
  • 67K to 150K
  • 150K and over
count, 2023. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2023

Philadelphia County: 739,725 countPhiladelphia County739,725Allegheny County: 604,558 countAllegheny County604,558Montgomery County: 348,696 countMontgomery County348,696Bucks County: 256,416 countBucks County256,416Delaware County: 229,390 countDelaware County229,390Lancaster County: 217,863 countLancaster County217,863Chester County: 210,730 countChester County210,730York County: 188,608 countYork County188,608Berks County: 171,147 countBerks County171,147Westmoreland County: 168,406 countWestmoreland County168,406Luzerne County: 151,012 countLuzerne County151,012Lehigh County: 150,547 countLehigh County150,547Northampton County: 128,612 countNorthampton County128,612Dauphin County: 127,259 countDauphin County127,259Erie County: 120,019 countErie County120,019Cumberland County: 110,265 countCumberland County110,265Lackawanna County: 100,013 countLackawanna County100,013Washington County: 97,476 countWashington County97,476Butler County: 86,399 countButler County86,399Monroe County: 79,458 countMonroe County79,458Beaver County: 79,159 countBeaver County79,159Schuylkill County: 67,292 countSchuylkill County67,292Franklin County: 66,787 countFranklin County66,787Centre County: 66,023 countCentre County66,023Cambria County: 64,494 countCambria County64,494Fayette County: 62,060 countFayette County62,060Lebanon County: 59,582 countLebanon County59,582Blair County: 55,788 countBlair County55,788Lycoming County: 52,692 countLycoming County52,692Mercer County: 50,884 countMercer County50,884Northumberland County: 43,395 countNorthumberland County43,395Adams County: 43,377 countAdams County43,377Crawford County: 42,188 countCrawford County42,188Pike County: 39,948 countPike County39,948Lawrence County: 39,597 countLawrence County39,597Clearfield County: 38,160 countClearfield County38,160Somerset County: 37,800 countSomerset County37,800Indiana County: 37,672 countIndiana County37,672Carbon County: 34,299 countCarbon County34,299Armstrong County: 32,164 countArmstrong County32,164Philadelphia County: 739,725 countPhiladelphia County739,725Allegheny County: 604,558 countAllegheny County604,558Montgomery County: 348,696 countMontgomery County348,696Bucks County: 256,416 countBucks County256,416Delaware County: 229,390 countDelaware County229,390Lancaster County: 217,863 countLancaster County217,863Chester County: 210,730 countChester County210,730York County: 188,608 countYork County188,608Berks County: 171,147 countBerks County171,147Westmoreland County: 168,406 countWestmoreland County168,406Luzerne County: 151,012 countLuzerne County151,012Lehigh County: 150,547 countLehigh County150,547Northampton County: 128,612 countNorthampton County128,612Dauphin County: 127,259 countDauphin County127,259Erie County: 120,019 countErie County120,019Cumberland County: 110,265 countCumberland County110,265Lackawanna County: 100,013 countLackawanna County100,013Washington County: 97,476 countWashington County97,476Butler County: 86,399 countButler County86,399Monroe County: 79,458 countMonroe County79,458Beaver County: 79,159 countBeaver County79,159Schuylkill County: 67,292 countSchuylkill County67,292Franklin County: 66,787 countFranklin County66,787Centre County: 66,023 countCentre County66,023Cambria County: 64,494 countCambria County64,494Fayette County: 62,060 countFayette County62,060Lebanon County: 59,582 countLebanon County59,582Blair County: 55,788 countBlair County55,788Lycoming County: 52,692 countLycoming County52,692Mercer County: 50,884 countMercer County50,884Northumberland County: 43,395 countNorthumberland County43,395Adams County: 43,377 countAdams County43,377Crawford County: 42,188 countCrawford County42,188Pike County: 39,948 countPike County39,948Lawrence County: 39,597 countLawrence County39,597Clearfield County: 38,160 countClearfield County38,160Somerset County: 37,800 countSomerset County37,800Indiana County: 37,672 countIndiana County37,672Carbon County: 34,299 countCarbon County34,299Armstrong County: 32,164 countArmstrong County32,164
count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Retrieved 2026-10-12.

Full ranking

RankCounties2023
count		Change on 2022
1Philadelphia County739,725+1.2%
2Allegheny County604,558+0.3%
3Montgomery County348,696+0.6%
4Bucks County256,416+0.3%
5Delaware County229,390+0.2%
6Lancaster County217,863+0.6%
7Chester County210,730+1%
8York County188,608+0.6%
9Berks County171,147+0.3%
10Westmoreland County168,406+0.1%
11Luzerne County151,012+0.1%
12Lehigh County150,547+0.4%
13Northampton County128,612+0.7%
14Dauphin County127,259+0.5%
15Erie County120,019+0.1%
16Cumberland County110,265+1%
17Lackawanna County100,013+0.1%
18Washington County97,476+0.5%
19Butler County86,399+1.1%
20Monroe County79,458+0.1%
21Beaver County79,159+0.1%
22Schuylkill County67,292-0.1%
23Franklin County66,787+0.5%
24Centre County66,023+0.5%
25Cambria County64,494-0%
26Fayette County62,060+0.1%
27Lebanon County59,582+0.6%
28Blair County55,788-0%
29Lycoming County52,6920%
30Mercer County50,884-0.1%
31Northumberland County43,395-0.1%
32Adams County43,377+0.6%
33Crawford County42,188-0.1%
34Pike County39,948+0.5%
35Lawrence County39,597-0.1%
36Clearfield County38,1600%
37Somerset County37,8000%
38Indiana County37,672-0%
39Carbon County34,299+0.2%
40Armstrong County32,164-0%
41Wayne County32,054+0.2%
42Columbia County29,775+0.3%
43Bradford County29,421-0.1%
44Venango County26,203-0.3%
45Bedford County23,568+0.1%
46Jefferson County22,053-0.1%
47Warren County21,641-0.2%
48Tioga County21,542-0%
49Mifflin County21,425+0.2%
50Susquehanna County21,335-0.1%
51Huntingdon County20,932-0.1%
52Perry County20,010+0.3%
53McKean County19,493-0.2%
54Clarion County18,878-0.1%
55Clinton County18,640+0.1%
56Elk County16,876-0.1%
57Greene County16,182-0%
58Union County16,158-0.2%
59Snyder County16,033+0.2%
60Wyoming County12,858+0.1%
61Potter County12,375-0.2%
62Juniata County10,5020%
63Montour County8,117+0.3%
64Fulton County7,129+0.1%
65Forest County6,969-1.1%
66Sullivan County5,601-0.3%
67Cameron County3,933-0.6%

Other periods

About this ranking

All housing units, occupied and vacant: houses, apartments, mobile homes and rooms intended as separate living quarters. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

A survey estimate averaged over five years, not a count on one date.

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. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat. 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). American Community Survey 5-year estimates, table B25001: total housing units (Counties in Pennsylvania by housing units, 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat

MLA 9

American Community Survey 5-year estimates, table B25001: total housing units, Counties in Pennsylvania by housing units, 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat. Invokely, https://invokely.ai/rankings/housing-units/pennsylvania-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25001: total housing units. Counties in Pennsylvania by housing units, 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat. Also distributed by Invokely, https://invokely.ai/rankings/housing-units/pennsylvania-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25001: total housing units, Counties in Pennsylvania by housing units, 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat, via Invokely: https://invokely.ai/rankings/housing-units/pennsylvania-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_pennsylvania_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25001: total housing units: Counties in Pennsylvania by housing units, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/housing-units/pennsylvania-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary\_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25001: total housing units: Counties in Pennsylvania by housing units, 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat
L2  - https://invokely.ai/rankings/housing-units/pennsylvania-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/housing-units/pennsylvania-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest housing units?

Philadelphia County, with 739,725 in 2023, according to the U.S. Census Bureau.

Which county has the lowest housing units?

Cameron County, with 3,933 in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Retrieved 2026-10-12.

Housing units: other rankings

Counties in Pennsylvania: more rankings