• county
  • FIPS 18171
  • Largest town: Williamsport

Warren County, Indiana

Warren County had 8,451 residents in the Census Vintage 2024 estimate, on 364.7 square miles of land. It ranks 90th of 92 in Indiana by population and 67th by land area.

Population
8,451
#90 of 92 in Indiana · #2,540 in US
Area
364.7 sq mi
#67 of 92 in Indiana · #2,643 in US
Density
23 / sq mi
#91 of 92 in Indiana · #2,125 in US
Median household income
$74,750
#20 of 92 in Indiana · #683 in US

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

Warren County within Indiana. Pin: Indianapolis.

Measure from here

Tools and pages that start from Warren County

Warren County population, land area and income

Warren County had 8,451 residents in the Census Vintage 2024 estimate, on 364.7 square miles of land. It ranks 90th of 92 in Indiana by population and 67th by land area. That works out to 23.2 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Indiana has 34,874 residents, so Warren County has 24% of the typical county's population.

Its SAIPE 2023 median household income of $74,750 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

8,451

3144th1st

2540th of 3,144 (US)

Land area

365 sq mi

3144th1st

2643rd of 3,144 (US)

Density

23.2 / sq mi

3144th1st

2125th of 3,144 (US)

Median household income

$74,750

3143rd1st

683rd of 3,143 (US)

Rank within Indiana (92)

Population

8,451

92nd1st

90th of 92 (IN)

Land area

365 sq mi

92nd1st

67th of 92 (IN)

Density

23.2 / sq mi

92nd1st

91st of 92 (IN)

Median household income

$74,750

92nd1st

20th of 92 (IN)

How Warren County's population changed since 2020

Warren County gained 26 residents between the July 2020 and July 2024 estimates, a rise of 0.3%. That ranks 59th of 92 in Indiana for growth. The median Indiana county changed by +0.8%, and the state as a whole by +2.0%.

Since the April 2020 estimates base, Warren County recorded 286 births and 418 deaths, a natural change of -132. Net international migration added +23 and net domestic migration, people moving to or from other US counties, came to +128. The largest single component was natural change, which removed 132 people.

8,42520208,45320218,49220228,49820238,4512024
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
286
Deaths
418
Net international migration
+23
Net domestic migration
+128
Change, July 2023 to July 2024
-47

Where Warren County is

The Census internal point of Warren County is at 40.352500, -87.375200. It sits in UTM zone 16N. The map shades Indiana's 92 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.

Vigo County: +0.0%Fayette County: -0.1%Grant County: -0.1%Noble County: +0.7%Clay County: -0.0%Fulton County: -2.3%Henry County: +0.3%Jasper County: +1.5%Carroll County: +2.0%Huntington County: +0.8%Howard County: +0.6%Tipton County: -0.4%Starke County: +0.3%Lawrence County: +0.4%Jennings County: +0.2%Jay County: -1.5%Greene County: +1.3%Blackford County: -2.4%Madison County: +3.1%Parke County: +2.1%DeKalb County: +2.4%Scott County: +1.5%Benton County: +1.7%Wells County: +2.3%Wabash County: -0.5%Union County: -2.8%Marshall County: +0.8%Putnam County: +3.1%Clinton County: -0.8%Hamilton County: +8.8%Hancock County: +10.8%Jackson County: +2.0%Hendricks County: +8.5%Johnson County: +5.1%Decatur County: -0.2%Lake County: +0.8%Newton County: +2.5%Fountain County: +2.1%Crawford County: +0.0%Perry County: +0.9%Martin County: +0.6%Dearborn County: +1.3%Morgan County: +2.8%Monroe County: +0.0%Switzerland County: +2.5%Ohio County: +1.2%Sullivan County: -0.2%Franklin County: +1.5%Adams County: +2.0%Jefferson County: -0.5%Knox County: -1.1%Ripley County: +0.8%Vanderburgh County: +0.0%Gibson County: -0.1%LaGrange County: +1.5%Dubois County: -0.0%Harrison County: +0.8%Randolph County: -0.3%Brown County: +1.1%Shelby County: +1.3%Tippecanoe County: +2.8%Daviess County: +2.2%Delaware County: +1.1%Elkhart County: +0.2%Whitley County: +1.6%Allen County: +3.4%Montgomery County: +1.8%Miami County: -0.8%St. Joseph County: +0.4%Kosciusko County: +0.6%Floyd County: +1.8%Rush County: -0.1%Wayne County: -0.2%Posey County: -0.5%Clark County: +5.0%Orange County: -0.1%Marion County: +0.5%Boone County: +10.7%Porter County: +1.5%Steuben County: +1.2%Vermillion County: +0.8%Cass County: -0.6%Owen County: +2.5%White County: +0.6%Washington County: +0.4%Pulaski County: -0.8%Pike County: -1.1%Warren County: +0.3%Warrick County: +3.7%Spencer County: +1.8%LaPorte County: -0.8%Bartholomew County: +3.1%
Change 2020 to 2024
  1. < -0.2%
  2. < +0.4%
  3. < +1.2%
  4. < +2.1%
  5. ≥ +2.1%
no data

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

Internal point

Decimal
40.352500, -87.375200
DMS
40°21'9.00"N 87°22'30.72"W
UTM
16N 468138.3E 4466950.0N
Geohash
dp1ve9zq6
Plus code
86GJ9J2F+XW

Towns in Warren County

One incorporated place of 1,000+ people has residents in Warren County, 1,953 people together, or 23% 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 Williamsport with 1,953.

  1. 01Williamsport1,953
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Warren County

The Census 2024 county adjacency file lists 5 neighbors for Warren County, including 1 across a state line. The most populous is Tippecanoe County, IN, with 191,650 residents. Distances run between Census internal points in a straight line.

Distance to Indianapolis and the nearest big city

Indianapolis is 75.9 miles ESE of Warren County's internal point in a straight line. The nearest place of 100,000 or more is Carmel, IN (population 103,606), 70.1 miles away. The nearest place of 10,000 or more is Danville, IL (population 27,981), 19.1 miles away.

Warren County FIPS code

The FIPS code of Warren County is 18171: state code 18 for Indiana plus county code 171. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $74,750.

Questions people ask

What is the population of Warren County, Indiana?

The Census Vintage 2024 estimate for July 1, 2024 is 8,451. That is up 26 people (0.3%) from the July 2020 estimate of 8,425.

What is the FIPS code of Warren County?

18171. The first two digits (18) are Indiana; the last three (171) identify the county.

What is the largest town in Warren County?

Williamsport, with 1,953 residents inside Warren County in 2024.

Which counties border Warren County?

5 county-equivalents border it in the Census 2024 adjacency file: Tippecanoe County, IN; Vermilion County, IL; Fountain County, IN; Vermillion County, IN; Benton County, IN.

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.