Data / Rankings / Housing units / Counties in Pennsylvania

Counties in Pennsylvania by housing units, 2024

Philadelphia County had the highest housing units of 67 counties in 2024, at 748,270. Cameron County had the lowest, at 3,920. The median was 40,177 and the figure for Pennsylvania was 5.81 million. Source: the U.S. Census Bureau.

Highest748,270Philadelphia County
Lowest3,920Cameron County
Median40,17767 counties
Pennsylvania5,806,452History

Top 40 counties, 2024

Philadelphia County: 748,270 countPhiladelphia County748,270Allegheny County: 606,827 countAllegheny County606,827Montgomery County: 350,351 countMontgomery County350,351Bucks County: 257,260 countBucks County257,260Delaware County: 229,715 countDelaware County229,715Lancaster County: 219,224 countLancaster County219,224Chester County: 212,491 countChester County212,491York County: 189,857 countYork County189,857Berks County: 171,580 countBerks County171,580Westmoreland County: 168,812 countWestmoreland County168,812Luzerne County: 151,287 countLuzerne County151,287Lehigh County: 151,220 countLehigh County151,220Northampton County: 129,448 countNorthampton County129,448Dauphin County: 127,828 countDauphin County127,828Erie County: 120,111 countErie County120,111Cumberland County: 111,278 countCumberland County111,278Lackawanna County: 100,177 countLackawanna County100,177Washington County: 97,923 countWashington County97,923Butler County: 87,382 countButler County87,382Monroe County: 79,607 countMonroe County79,607Beaver County: 79,328 countBeaver County79,328Schuylkill County: 67,295 countSchuylkill County67,295Franklin County: 67,157 countFranklin County67,157Centre County: 66,475 countCentre County66,475Cambria County: 64,456 countCambria County64,456Fayette County: 62,158 countFayette County62,158Lebanon County: 59,921 countLebanon County59,921Blair County: 55,901 countBlair County55,901Lycoming County: 52,715 countLycoming County52,715Mercer County: 50,930 countMercer County50,930Adams County: 43,672 countAdams County43,672Northumberland County: 43,395 countNorthumberland County43,395Crawford County: 42,157 countCrawford County42,157Pike County: 40,177 countPike County40,177Lawrence County: 39,591 countLawrence County39,591Clearfield County: 38,198 countClearfield County38,198Somerset County: 37,863 countSomerset County37,863Indiana County: 37,626 countIndiana County37,626Carbon County: 34,417 countCarbon County34,417Wayne County: 32,171 countWayne County32,171
count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Retrieved 2026-10-12.

Full ranking

RankCounties2024
count		Change on 2023
1Philadelphia County748,270+1.2%
2Allegheny County606,827+0.4%
3Montgomery County350,351+0.5%
4Bucks County257,260+0.3%
5Delaware County229,715+0.1%
6Lancaster County219,224+0.6%
7Chester County212,491+0.8%
8York County189,857+0.7%
9Berks County171,580+0.3%
10Westmoreland County168,812+0.2%
11Luzerne County151,287+0.2%
12Lehigh County151,220+0.4%
13Northampton County129,448+0.7%
14Dauphin County127,828+0.4%
15Erie County120,111+0.1%
16Cumberland County111,278+0.9%
17Lackawanna County100,177+0.2%
18Washington County97,923+0.5%
19Butler County87,382+1.1%
20Monroe County79,607+0.2%
21Beaver County79,328+0.2%
22Schuylkill County67,2950%
23Franklin County67,157+0.6%
24Centre County66,475+0.7%
25Cambria County64,456-0.1%
26Fayette County62,158+0.2%
27Lebanon County59,921+0.6%
28Blair County55,901+0.2%
29Lycoming County52,7150%
30Mercer County50,930+0.1%
31Adams County43,672+0.7%
32Northumberland County43,3950%
33Crawford County42,157-0.1%
34Pike County40,177+0.6%
35Lawrence County39,591-0%
36Clearfield County38,198+0.1%
37Somerset County37,863+0.2%
38Indiana County37,626-0.1%
39Carbon County34,417+0.3%
40Wayne County32,171+0.4%
41Armstrong County32,128-0.1%
42Columbia County29,824+0.2%
43Bradford County29,486+0.2%
44Venango County26,244+0.2%
45Bedford County23,567-0%
46Jefferson County22,085+0.1%
47Warren County21,629-0.1%
48Tioga County21,571+0.1%
49Mifflin County21,468+0.2%
50Susquehanna County21,348+0.1%
51Huntingdon County20,984+0.2%
52Perry County20,049+0.2%
53McKean County19,465-0.1%
54Clarion County18,856-0.1%
55Clinton County18,617-0.1%
56Elk County16,8800%
57Union County16,205+0.3%
58Greene County16,201+0.1%
59Snyder County16,053+0.1%
60Wyoming County12,896+0.3%
61Potter County12,397+0.2%
62Juniata County10,5060%
63Montour County8,144+0.3%
64Fulton County7,157+0.4%
65Forest County6,937-0.5%
66Sullivan County5,584-0.3%
67Cameron County3,920-0.3%

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/2024/table-based-SF/data/5YRData/acsdt5y2024-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, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat

MLA 9

American Community Survey 5-year estimates, table B25001: total housing units, Counties in Pennsylvania by housing units, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Invokely, https://invokely.ai/rankings/housing-units/pennsylvania-counties. 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, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Also distributed by Invokely, https://invokely.ai/rankings/housing-units/pennsylvania-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25001: total housing units, Counties in Pennsylvania by housing units, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat, via Invokely: https://invokely.ai/rankings/housing-units/pennsylvania-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_pennsylvania_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25001: total housing units: Counties in Pennsylvania by housing units, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/housing-units/pennsylvania-counties. 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/2024/table-based-SF/data/5YRData/acsdt5y2024-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, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat
L2  - https://invokely.ai/rankings/housing-units/pennsylvania-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/housing-units/pennsylvania-counties.
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/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest housing units?

Philadelphia County, with 748,270 in 2024, according to the U.S. Census Bureau.

Which county has the lowest housing units?

Cameron County, with 3,920 in 2024.

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