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U.S. Census Bureau · 2025 Population Estimates Program (PEP)

Pennsylvania County Population — 2025 PEP

July 1, 2025 resident population estimates for 67 counties. State total (sum of these county estimates): 13,059,432 persons.

Separate 2025 TIGER/Line county boundaries validate county identity; these are not ACS 2024 survey estimates.

Source and downloads

2025 Census PEP county estimates, 2020–2025 series; counts are persons, migration counts are persons, published rates are per 1,000, and unavailable values remain null (not zero). 2020 rates are unavailable for the partial-year interval. County totals and characteristics are verified against the pinned raw Census CSV receipts and independent 2025 county geometry.

Official Census PEP county source · Download JSON · Download CSV · Download source metadata

Official state totals and county summaries

Official NST July 1, 2025 state total: 13,059,432 persons (SUMLEV 040, PEP Vintage 2025). County sum: 13,059,432 persons; comparison status: equal.

Official NST July 2020: 12,995,576 persons; July 2020–July 2025 change: +63,856 persons; growth: 0.491367 percent (denominator: official July 2020 population).

County July 2024–July 2025: Growing: 30 · Shrinking: 37 · Unchanged: 0 · Missing: 0. Median county growth: -0.082385 percent.

Largest county: Philadelphia County (GEOID 42101): 1574281 persons.

Fastest county growth: Cumberland County (GEOID 42041): 0.951736 percent.

Greatest numeric increase: York County (GEOID 42133): 3211 persons.

no minimum population; missing excluded per measure; median of county percentages, not population weighted; equal values use ascending full GEOID.

Official state demographics

Resident population · SUMLEV 040 · July 1, 2025 · Census PEP Vintage 2025. Denominator for every share: 13,059,432 resident persons. Six exclusive race groups; Hispanic origin overlaps race and must not be added to it. Release: June 2026; exact day unproved; PEP estimates have no ACS sampling MOE.

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Official state age, sex, race and overlapping Hispanic origin
MeasureCountShare
Female6,663,203 persons51.022150 percent
Male6,396,229 persons48.977850 percent
Ages 18–241,186,683 persons9.086789 percent
Ages 25–443,354,806 persons25.688759 percent
Ages 45–643,147,522 persons24.101523 percent
Ages 65 and older2,799,790 persons21.438834 percent
Under 182,570,631 persons19.684095 percent
American Indian or Alaska Native alone87,729 persons0.671767 percent
Asian alone603,761 persons4.623180 percent
Black or African American alone1,602,346 persons12.269645 percent
Native Hawaiian or other Pacific Islander alone11,236 persons0.086037 percent
Two or more races503,290 persons3.853843 percent
White alone10,251,070 persons78.495527 percent
Hispanic (any race)1,296,087 persons9.924528 percent
Not Hispanic11,763,345 persons90.075472 percent

Official state median age: 41.4 years. Published state SYASEX median age; not a county aggregation, not ACS.

Download all state demographic observations (CSV)

Revised April 1, 2020 estimates base (official NST): 13,002,753 persons; county base sum: 13,002,753 persons; comparison: equal. This is not the original decennial census count.

Original April 1, 2020 Census count: 67 compatible counties; 0 unavailable. Published Census county centers-of-population POPULATION, original 2020 Gazetteer and official 2020–2025 geographic-change evidence; no boundary allocation. Original count, revised April estimates base and July 2020 estimate are separate observations. Documentation: November 2021; exact file release day unproved; retrieval is not release. Official original count source. Original 2020 Gazetteer identity plus Census geographic-change notes 2014–2025; no county-level change recorded from 2020 onward, exact full modern name, and original count required. Any recorded county-level change or referenced counterparty is conservatively unavailable, including unresolved internal redistricting. Same GEOID alone is insufficient. Not a claim of identical cartographic coordinates; no invented allocations.

Source release date unavailable: retained pins do not attest an official release date; retrieval is not release. Reference dates and Vintage 2025 are explicit; no current-vintage refresh is implied.

County population and demographic explorer

Choose a measure, observation year and county without downloading boundaries. Rankings, search, trends and CSV work without a map. Load map explicitly to download the full, unsimplified 2025 TIGER boundaries; this defers rather than removes their payload. The table remains available without JavaScript.

PEP population · persons · July 1, 2025. Denominator: none. Calculation/source: CO POPESTIMATEy. Vintage 2025; null with metric_status reason; measured zero remains zero; no imputation.

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After loading, Tab to a county and press Enter or Space; colors and the legend indicate signed direction and magnitude. Outlines show selection. The county picker works before and after map loading.

Selected county demographic breakdown

July 1, 2025 · Philadelphia County (GEOID 42101). Same-period county population is the share denominator. Hispanic origin overlaps race; do not add origin to race counts. Other overlapping classifications are not additive. Official county median age is from PEP AGESEX MEDIAN_AGE_TOT, not ACS.

County demographics: counts, shares and official median age
Classification / sourceCount or statisticShare / status
Sex · PEP male742,507 persons47.164833 percent
Sex · PEP female831,774 persons52.835167 percent
Age bands · PEP under18312,490 persons19.849696 percent
Age bands · PEP age18 24156,572 persons9.945620 percent
Age bands · PEP age25 44526,067 persons33.416334 percent
Age bands · PEP age45 64329,079 persons20.903447 percent
Age bands · PEP age65plus250,073 persons15.884902 percent
Race alone (partition) · PEP white alone695,414 persons44.173435 percent
Race alone (partition) · PEP black alone637,429 persons40.490167 percent
Race alone (partition) · PEP aian alone20,218 persons1.284269 percent
Race alone (partition) · PEP asian alone145,925 persons9.269311 percent
Race alone (partition) · PEP nhpi alone2,710 persons0.172142 percent
Race alone (partition) · PEP two or more72,585 persons4.610676 percent
Hispanic origin (overlaps race) · PEP hispanic any race271,320 persons17.234534 percent
Hispanic origin (overlaps race) · PEP not hispanic1,302,961 persons82.765466 percent
Other overlapping classifications (not additive) · PEP white alone or combination755,826 persons48.010870 percent
Other overlapping classifications (not additive) · PEP not hispanic white alone528,442 persons33.567197 percent
Official county median age · AGESEX MEDIAN_AGE_TOT35.7 yearsNot a share; not ACS or an average of county medians

Use Ctrl/Command or Shift to select multiple counties. The following trend uses exact resident persons, not percentages; county size affects the scale. Missing observations break lines; the revised April estimates base is a separate dashed partial interval.

2025 county population rankings

All 67 county estimates are present without JavaScript, ranked by 2025 population (largest first). Signed changes compare July 1, 2024 to July 1, 2025. Unavailable is not zero; equal values break ties by GEOID (ascending).

Showing all 67 counties; ranked by 2025 population, descending.

Pennsylvania County Population — 2025 PEP — July 1, 2025; rank reflects the selected ordering
RankCountyGEOIDPopulation (persons)Signed change (persons)Signed change (percent)
1Philadelphia County421011,574,281+1546 persons+0.098300%
2Allegheny County420031,225,035-2139 persons-0.174303%
3Montgomery County42091877,643+2483 persons+0.283720%
4Bucks County42017647,828-588 persons-0.090683%
5Delaware County42045580,937-479 persons-0.082385%
6Lancaster County42071563,159+1097 persons+0.195174%
7Chester County42029557,116+2586 persons+0.466341%
8York County42133473,197+3211 persons+0.683212%
9Berks County42011440,072+1693 persons+0.386196%
10Lehigh County42077384,383+1444 persons+0.377084%
11Westmoreland County42129349,324-1149 persons-0.327843%
12Luzerne County42079332,126+1228 persons+0.371111%
13Northampton County42095324,411+1326 persons+0.410418%
14Dauphin County42043293,351+434 persons+0.148165%
15Cumberland County42041277,270+2614 persons+0.951736%
16Erie County42049265,832-603 persons-0.226322%
17Lackawanna County42069216,502+84 persons+0.038814%
18Washington County42125210,802+167 persons+0.079284%
19Butler County42019200,169+869 persons+0.436026%
20Monroe County42089167,179+361 persons+0.216404%
21Beaver County42007166,032+263 persons+0.158655%
22Franklin County42055160,652+1176 persons+0.737415%
23Centre County42027157,393-1112 persons-0.701555%
24Lebanon County42075146,380+988 persons+0.679542%
25Schuylkill County42107145,085+676 persons+0.468115%
26Cambria County42021128,968-937 persons-0.721296%
27Fayette County42051123,021-938 persons-0.756702%
28Blair County42013119,541-510 persons-0.424819%
29Lycoming County42081112,587-331 persons-0.293133%
30Mercer County42085107,860-378 persons-0.349230%
31Adams County42001107,594+439 persons+0.409687%
32Northumberland County4209789,920-49 persons-0.054463%
33Lawrence County4207383,911-176 persons-0.209307%
34Indiana County4206382,878-379 persons-0.455217%
35Crawford County4203981,792-154 persons-0.187929%
36Clearfield County4203378,100-31 persons-0.039677%
37Somerset County4211172,004-205 persons-0.283898%
38Columbia County4203766,193+196 persons+0.296983%
39Carbon County4202565,868+159 persons+0.241976%
40Armstrong County4200563,698-57 persons-0.089405%
41Pike County4210362,808+544 persons+0.873699%
42Bradford County4201559,600+7 persons+0.011746%
43Wayne County4212751,703+341 persons+0.663915%
44Venango County4212149,346-172 persons-0.347348%
45Bedford County4200947,480-86 persons-0.180801%
46Perry County4209946,806+240 persons+0.515398%
47Mifflin County4208746,127+104 persons+0.225974%
48Jefferson County4206543,255-85 persons-0.196124%
49Huntingdon County4206143,001-383 persons-0.882814%
50Union County4211942,313-328 persons-0.769213%
51Tioga County4211740,502-61 persons-0.150383%
52Snyder County4210939,655-34 persons-0.085666%
53McKean County4208338,984-305 persons-0.776299%
54Susquehanna County4211538,237+57 persons+0.149293%
55Clinton County4203537,870+63 persons+0.166636%
56Warren County4212337,038-273 persons-0.731688%
57Clarion County4203136,680-61 persons-0.166027%
58Greene County4205933,885-257 persons-0.752739%
59Elk County4204729,926-141 persons-0.468953%
60Wyoming County4213125,790-67 persons-0.259117%
61Juniata County4206723,403-51 persons-0.217447%
62Montour County4209317,868-32 persons-0.178771%
63Potter County4210515,897-113 persons-0.705809%
64Fulton County4205714,483-7 persons-0.048309%
65Forest County420536,614+19 persons+0.288097%
66Sullivan County421135,856-39 persons-0.661578%
67Cameron County420234,211-121 persons-2.793167%

County population trend · 2020–2025

Resident population (persons), not ACS housing. April 1, 2020 estimates base is distinct from the July 1, 2020 estimate. The April–July 2020 change is partial-year; the July 2020–July 2021 interval is the first July-to-July comparison. No 2020 annual rate is shown. Missing observations are unavailable, never zero.

Showing Philadelphia County (GEOID 42101). Select a county on the map or in the rankings table to update this trend.

Horizontal axis: year (2020–2025); vertical axis: resident population (persons). The 2020 base is a separate April 1 observation; July 1 estimates run from 2020 through 2025. Focus the chart viewport and use Left/Right arrows to scroll on narrow screens. Complete axis labels stay here outside the scrolling chart; the table gives exact values and availability.

Population observations for Philadelphia County (GEOID 42101), persons
DatePopulation (persons)Interval
April 1, 2020 base1,603,800Estimates base; not July 1
July 1, 20201,600,737April–July partial-year; no annual rate
July 1, 20211,590,224July 2020–July 2021 comparison
July 1, 20221,572,341July-to-July estimate
July 1, 20231,565,822July-to-July estimate
July 1, 20241,572,735July-to-July estimate
July 1, 20251,574,281July-to-July estimate

County population and median home value · different vintages

Each point pairs a county’s PEP July 1, 2025 resident population (persons) with its ACS 2024 5-year median owner-occupied home value (B25077, U.S. dollars). These are different reference periods and different statistical programs. This descriptive comparison does not imply causality or matched vintages. Suppressed, missing or invalid ACS estimates are unavailable, not zero and not plotted. A valid zero remains zero.

The exact-value table below works without JavaScript; chart loading requires JavaScript.

Select a county using the map or rankings to coordinate the comparison.

County comparison: PEP July 1, 2025 population (persons) and ACS 2024 5-year median owner-occupied home value (U.S. dollars); unavailable values identified
CountyGEOIDPEP July 1, 2025 population (persons)ACS 2024 5-year median home value (U.S. dollars)
Adams County42001107,594$268,500
Allegheny County420031,225,035$227,600
Armstrong County4200563,698$157,300
Beaver County42007166,032$190,900
Bedford County4200947,480$179,000
Berks County42011440,072$257,300
Blair County42013119,541$161,100
Bradford County4201559,600$187,500
Bucks County42017647,828$445,700
Butler County42019200,169$294,200
Cambria County42021128,968$121,000
Cameron County420234,211$88,900
Carbon County4202565,868$211,400
Centre County42027157,393$323,500
Chester County42029557,116$485,600
Clarion County4203136,680$155,700
Clearfield County4203378,100$137,000
Clinton County4203537,870$175,900
Columbia County4203766,193$206,200
Crawford County4203981,792$153,200
Cumberland County42041277,270$277,600
Dauphin County42043293,351$236,400
Delaware County42045580,937$332,200
Elk County4204729,926$133,600
Erie County42049265,832$177,000
Fayette County42051123,021$143,200
Forest County420536,614$115,300
Franklin County42055160,652$249,800
Fulton County4205714,483$208,500
Greene County4205933,885$153,900
Huntingdon County4206143,001$183,200
Indiana County4206382,878$152,800
Jefferson County4206543,255$139,700
Juniata County4206723,403$217,000
Lackawanna County42069216,502$201,800
Lancaster County42071563,159$301,100
Lawrence County4207383,911$147,200
Lebanon County42075146,380$242,000
Lehigh County42077384,383$300,400
Luzerne County42079332,126$174,100
Lycoming County42081112,587$202,200
McKean County4208338,984$104,500
Mercer County42085107,860$164,000
Mifflin County4208746,127$156,700
Monroe County42089167,179$267,600
Montgomery County42091877,643$436,700
Montour County4209317,868$248,100
Northampton County42095324,411$308,600
Northumberland County4209789,920$162,400
Perry County4209946,806$236,400
Philadelphia County421011,574,281$243,100
Pike County4210362,808$272,600
Potter County4210515,897$153,100
Schuylkill County42107145,085$153,000
Snyder County4210939,655$215,300
Somerset County4211172,004$150,600
Sullivan County421135,856$197,100
Susquehanna County4211538,237$216,400
Tioga County4211740,502$181,100
Union County4211942,313$240,100
Venango County4212149,346$119,800
Warren County4212337,038$127,500
Washington County42125210,802$228,500
Wayne County4212751,703$242,100
Westmoreland County42129349,324$203,500
Wyoming County4213125,790$215,400
York County42133473,197$248,600