• county
  • FIPS 18035
  • Largest town: Muncie

Delaware County, Indiana

Delaware County had 112,951 residents in the Census Vintage 2024 estimate, on 392.1 square miles of land. It ranks 15th of 92 in Indiana by population and 51st by land area.

Population
112,951
#15 of 92 in Indiana · #567 in US
Area
392.1 sq mi
#51 of 92 in Indiana · #2,565 in US
Density
288 / sq mi
#17 of 92 in Indiana · #450 in US
Median household income
$55,704
#86 of 92 in Indiana · #2,259 in US

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

Delaware County within Indiana. Pin: Indianapolis.

Measure from here

Tools and pages that start from Delaware County

Delaware County population, land area and income

Delaware County had 112,951 residents in the Census Vintage 2024 estimate, on 392.1 square miles of land. It ranks 15th of 92 in Indiana by population and 51st by land area. That works out to 288.1 people per square mile, 3.0 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Indiana has 34,874 residents, so Delaware County is 3.2 times that size.

Its SAIPE 2023 median household income of $55,704 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

112,951

3144th1st

567th of 3,144 (US)

Land area

392 sq mi

3144th1st

2565th of 3,144 (US)

Density

288.1 / sq mi

3144th1st

450th of 3,144 (US)

Median household income

$55,704

3143rd1st

2259th of 3,143 (US)

Rank within Indiana (92)

Population

112,951

92nd1st

15th of 92 (IN)

Land area

392 sq mi

92nd1st

51st of 92 (IN)

Density

288.1 / sq mi

92nd1st

17th of 92 (IN)

Median household income

$55,704

92nd1st

86th of 92 (IN)

How Delaware County's population changed since 2020

Delaware County gained 1,194 residents between the July 2020 and July 2024 estimates, a rise of 1.1%. That ranks 41st 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, Delaware County recorded 4,545 births and 6,256 deaths, a natural change of -1,711. Net international migration added +820 and net domestic migration, people moving to or from other US counties, came to +1,899. The largest single component was domestic migration, which added 1,899 people.

111.8k2020112.1k2021112.2k2022112.4k2023113.0k2024
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
4,545
Deaths
6,256
Net international migration
+820
Net domestic migration
+1,899
Change, July 2023 to July 2024
+503

Where Delaware County is

The Census internal point of Delaware County is at 40.227500, -85.399300. 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 Delaware 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: Delaware County internal point. Dark pin: Indianapolis.

Internal point

Decimal
40.227500, -85.399300
DMS
40°13'39.00"N 85°23'57.48"W
UTM
16N 636183.7E 4454236.7N
Geohash
dp5kbennh
Plus code
86GP6JG2+X7

Towns in Delaware County

6 incorporated places of 1,000+ people have residents in Delaware County, 82,642 people together, or 73% of the county. Each figure counts only the part of the town inside Delaware County; towns marked "part" extend into another county. The largest is Muncie with 65,320.

  1. 01Muncie65,320
  2. 02Yorktown11,900
  3. 03Albany (part)2,111
  4. 04Daleville1,711
  5. 05Eaton1,594
  6. 06Chesterfield (part)6
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Delaware County

The Census 2024 county adjacency file lists 6 neighbors for Delaware County. The most populous is Madison County, IN, with 134,222 residents. Distances run between Census internal points in a straight line.

Distance to Indianapolis and the nearest big city

Indianapolis is 51.1 miles SW of Delaware County's internal point in a straight line. The nearest place of 100,000 or more is Fishers, IN (population 103,986), 35.2 miles away. The nearest place of 10,000 or more is Muncie, IN (population 65,320), 2.0 miles away.

Delaware County FIPS code

The FIPS code of Delaware County is 18035: state code 18 for Indiana plus county code 035. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $55,704.

Questions people ask

What is the population of Delaware County, Indiana?

The Census Vintage 2024 estimate for July 1, 2024 is 112,951. That is up 1,194 people (1.1%) from the July 2020 estimate of 111,757.

What is the FIPS code of Delaware County?

18035. The first two digits (18) are Indiana; the last three (035) identify the county.

What is the largest town in Delaware County?

Muncie, with 65,320 residents inside Delaware County in 2024.

Which counties border Delaware County?

6 county-equivalents border it in the Census 2024 adjacency file: Madison County, IN; Grant County, IN; Henry County, IN; Randolph County, IN; Jay County, IN; Blackford 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.