• county
  • FIPS 18147
  • Largest town: Santa Claus

Spencer County, Indiana

Spencer County had 20,192 residents in the Census Vintage 2024 estimate, on 396.9 square miles of land. It ranks 71st of 92 in Indiana by population and 46th by land area.

Population
20,192
#71 of 92 in Indiana · #1,815 in US
Area
396.9 sq mi
#46 of 92 in Indiana · #2,540 in US
Density
51 / sq mi
#75 of 92 in Indiana · #1,445 in US
Median household income
$77,467
#12 of 92 in Indiana · #561 in US

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

Spencer County within Indiana. Pin: Indianapolis.

Measure from here

Tools and pages that start from Spencer County

Spencer County population, land area and income

Spencer County had 20,192 residents in the Census Vintage 2024 estimate, on 396.9 square miles of land. It ranks 71st of 92 in Indiana by population and 46th by land area. That works out to 50.9 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Indiana has 34,874 residents; Spencer County is somewhat smaller.

Its SAIPE 2023 median household income of $77,467 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

20,192

3144th1st

1815th of 3,144 (US)

Land area

397 sq mi

3144th1st

2540th of 3,144 (US)

Density

50.9 / sq mi

3144th1st

1445th of 3,144 (US)

Median household income

$77,467

3143rd1st

561st of 3,143 (US)

Rank within Indiana (92)

Population

20,192

92nd1st

71st of 92 (IN)

Land area

397 sq mi

92nd1st

46th of 92 (IN)

Density

50.9 / sq mi

92nd1st

75th of 92 (IN)

Median household income

$77,467

92nd1st

12th of 92 (IN)

How Spencer County's population changed since 2020

Spencer County gained 359 residents between the July 2020 and July 2024 estimates, a rise of 1.8%. That ranks 26th 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, Spencer County recorded 863 births and 1,026 deaths, a natural change of -163. Net international migration added +56 and net domestic migration, people moving to or from other US counties, came to +483. The largest single component was domestic migration, which added 483 people.

19.8k202019.8k202119.9k202220.0k202320.2k2024
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
863
Deaths
1,026
Net international migration
+56
Net domestic migration
+483
Change, July 2023 to July 2024
+174

Where Spencer County is

The Census internal point of Spencer County is at 38.009700, -87.010400. 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 Spencer 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: Spencer County internal point. Dark pin: Indianapolis.

Internal point

Decimal
38.009700, -87.010400
DMS
38°00'34.92"N 87°00'37.44"W
UTM
16N 499087.0E 4206891.3N
Geohash
dnf0hp2yw
Plus code
86CJ2X5Q+VR

Towns in Spencer County

3 incorporated places of 1,000+ people have residents in Spencer County, 6,178 people together, or 31% of the county. Each figure counts only the part of the town inside Spencer County; towns marked "part" extend into another county. The largest is Santa Claus with 2,657.

  1. 01Santa Claus2,657
  2. 02Rockport1,989
  3. 03Dale1,532
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Spencer County

The Census 2024 county adjacency file lists 5 neighbors for Spencer County, including 2 across a state line. The most populous is Daviess County, KY, with 104,457 residents. Distances run between Census internal points in a straight line.

Distance to Indianapolis and the nearest big city

Indianapolis is 129.9 miles NNE of Spencer County's internal point in a straight line. The nearest place of 100,000 or more is Evansville, IN (population 115,395), 28.6 miles away. The nearest place of 10,000 or more is Owensboro, KY (population 60,675), 18.4 miles away.

Spencer County FIPS code

The FIPS code of Spencer County is 18147: state code 18 for Indiana plus county code 147. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $77,467.

Questions people ask

What is the population of Spencer County, Indiana?

The Census Vintage 2024 estimate for July 1, 2024 is 20,192. That is up 359 people (1.8%) from the July 2020 estimate of 19,833.

What is the FIPS code of Spencer County?

18147. The first two digits (18) are Indiana; the last three (147) identify the county.

What is the largest town in Spencer County?

Santa Claus, with 2,657 residents inside Spencer County in 2024.

Which counties border Spencer County?

5 county-equivalents border it in the Census 2024 adjacency file: Daviess County, KY; Warrick County, IN; Dubois County, IN; Perry County, IN; Hancock County, KY.

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.