• county
  • FIPS 42123
  • Largest town: Warren

Warren County, Pennsylvania

Warren County had 37,373 residents in the Census Vintage 2024 estimate, on 884.3 square miles of land. It ranks 56th of 67 in Pennsylvania by population and 16th by land area.

Population
37,373
#56 of 67 in Pennsylvania · #1,254 in US
Area
884.3 sq mi
#16 of 67 in Pennsylvania · #902 in US
Density
42 / sq mi
#59 of 67 in Pennsylvania · #1,621 in US
Median household income
$57,469
#57 of 67 in Pennsylvania · #2,089 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Warren County within Pennsylvania. Pin: Harrisburg.

Measure from here

Tools and pages that start from Warren County

Warren County population, land area and income

Warren County had 37,373 residents in the Census Vintage 2024 estimate, on 884.3 square miles of land. It ranks 56th of 67 in Pennsylvania by population and 16th by land area. That works out to 42.3 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Pennsylvania has 82,953 residents, so Warren County has 45% of the typical county's population.

Its SAIPE 2023 median household income of $57,469 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

37,373

3144th1st

1254th of 3,144 (US)

Land area

884 sq mi

3144th1st

902nd of 3,144 (US)

Density

42.3 / sq mi

3144th1st

1621st of 3,144 (US)

Median household income

$57,469

3143rd1st

2089th of 3,143 (US)

Rank within Pennsylvania (67)

Population

37,373

67th1st

56th of 67 (PA)

Land area

884 sq mi

67th1st

16th of 67 (PA)

Density

42.3 / sq mi

67th1st

59th of 67 (PA)

Median household income

$57,469

67th1st

57th of 67 (PA)

How Warren County's population changed since 2020

Warren County lost 1,153 residents between the July 2020 and July 2024 estimates, a drop of 3.0%. That ranks 63rd of 67 in Pennsylvania for growth. The median Pennsylvania county changed by -0.5%, and the state as a whole by +0.6%.

Since the April 2020 estimates base, Warren County recorded 1,472 births and 2,546 deaths, a natural change of -1,074. Net international migration added +85 and net domestic migration, people moving to or from other US counties, came to -218. The largest single component was natural change, which removed 1,074 people.

38.5k202038.2k202137.8k202237.7k202337.4k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,472
Deaths
2,546
Net international migration
+85
Net domestic migration
-218
Change, July 2023 to July 2024
-299

Where Warren County is

The Census internal point of Warren County is at 41.834300, -79.298200. It sits in UTM zone 17N. The map shades Pennsylvania's 67 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Warren County outlined. Dots are towns of 1,000+ people with residents in it.

Adams County: +4.0%Potter County: -2.4%Sullivan County: +1.6%Bucks County: +0.6%Carbon County: +1.5%McKean County: -2.3%Montour County: -0.1%Fulton County: -0.9%Columbia County: +2.0%Cameron County: -4.1%Elk County: -2.6%Bradford County: -0.4%Bedford County: +0.1%York County: +3.2%Monroe County: -1.1%Forest County: -5.2%Berks County: +2.4%Cambria County: -2.3%Franklin County: +2.1%Snyder County: -0.3%Somerset County: -2.5%Clarion County: -0.9%Indiana County: -0.2%Lackawanna County: +0.6%Wyoming County: -1.0%Lawrence County: -2.0%Mercer County: -2.2%Lehigh County: +3.0%Northampton County: +3.3%Cumberland County: +5.9%Fayette County: -3.6%Jefferson County: -2.5%Centre County: +1.2%Lebanon County: +1.4%Union County: -1.2%Clinton County: +1.3%Chester County: +4.8%Montgomery County: +2.6%Wayne County: +0.5%Pike County: +6.5%Susquehanna County: -0.6%Allegheny County: -1.4%Clearfield County: -2.9%Butler County: +2.7%Beaver County: -1.4%Crawford County: -2.1%Washington County: +0.5%Venango County: -1.7%Warren County: -3.0%Blair County: -2.0%Huntingdon County: -1.6%Lancaster County: +1.9%Luzerne County: +1.9%Westmoreland County: -1.0%Juniata County: -0.4%Armstrong County: -2.7%Tioga County: -0.8%Delaware County: +1.4%Northumberland County: -1.7%Mifflin County: -0.5%Lycoming County: -0.8%Perry County: +2.1%Philadelphia County: -1.7%Schuylkill County: +1.1%Dauphin County: +2.2%Greene County: -5.3%Erie County: -1.1%
Change 2020 to 2024
  1. < -2.2%
  2. < -1.0%
  3. < +0.1%
  4. < +1.9%
  5. ≥ +1.9%
no data

Orange pin: Warren County internal point. Dark pin: Harrisburg.

Internal point

Decimal
41.834300, -79.298200
DMS
41°50'3.48"N 79°17'53.52"W
UTM
17N 641306.4E 4632778.9N
Geohash
dprtgx8y6
Plus code
87H2RPM2+PP

Towns in Warren County

2 incorporated places of 1,000+ people have residents in Warren County, 10,788 people together, or 29% of the county. Each figure counts only the part of the town inside Warren County; towns marked "part" extend into another county. The largest is Warren with 9,125.

  1. 01Warren9,125
  2. 02Youngsville1,663
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Warren County

The Census 2024 county adjacency file lists 8 neighbors for Warren County, including 2 across a state line. The most populous is Erie County, PA, with 267,750 residents. Distances run between Census internal points in a straight line.

Distance to Harrisburg and the nearest big city

Harrisburg is 166.1 miles SE of Warren County's internal point in a straight line. The nearest place of 100,000 or more is Buffalo, NY (population 276,617), 76.5 miles away. The nearest place of 10,000 or more is Jamestown, NY (population 27,699), 18.5 miles away.

Warren County FIPS code

The FIPS code of Warren County is 42123: state code 42 for Pennsylvania plus county code 123. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $57,469.

Questions people ask

What is the population of Warren County, Pennsylvania?

The Census Vintage 2024 estimate for July 1, 2024 is 37,373. That is down 1,153 people (3.0%) from the July 2020 estimate of 38,526.

What is the FIPS code of Warren County?

42123. The first two digits (42) are Pennsylvania; the last three (123) identify the county.

What is the largest town in Warren County?

Warren, with 9,125 residents inside Warren County in 2024.

Which counties border Warren County?

8 county-equivalents border it in the Census 2024 adjacency file: Erie County, PA; Chautauqua County, NY; Crawford County, PA; Cattaraugus County, NY; Venango County, PA; McKean County, PA; Elk County, PA; Forest County, PA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.