• county
  • FIPS 18127
  • Largest town: Portage

Porter County, Indiana

Porter County had 175,860 residents in the Census Vintage 2024 estimate, on 418.1 square miles of land. It ranks 10th of 92 in Indiana by population and 29th by land area.

Population
175,860
#10 of 92 in Indiana · #395 in US
Area
418.1 sq mi
#29 of 92 in Indiana · #2,423 in US
Density
421 / sq mi
#11 of 92 in Indiana · #330 in US
Median household income
$79,398
#10 of 92 in Indiana · #498 in US

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

Porter County within Indiana. Pin: Indianapolis.

Measure from here

Tools and pages that start from Porter County

Porter County population, land area and income

Porter County had 175,860 residents in the Census Vintage 2024 estimate, on 418.1 square miles of land. It ranks 10th of 92 in Indiana by population and 29th by land area. That works out to 420.6 people per square mile, 4.4 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Indiana has 34,874 residents, so Porter County is 5.0 times that size.

Its SAIPE 2023 median household income of $79,398 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

175,860

3144th1st

395th of 3,144 (US)

Land area

418 sq mi

3144th1st

2423rd of 3,144 (US)

Density

420.6 / sq mi

3144th1st

330th of 3,144 (US)

Median household income

$79,398

3143rd1st

498th of 3,143 (US)

Rank within Indiana (92)

Population

175,860

92nd1st

10th of 92 (IN)

Land area

418 sq mi

92nd1st

29th of 92 (IN)

Density

420.6 / sq mi

92nd1st

11th of 92 (IN)

Median household income

$79,398

92nd1st

10th of 92 (IN)

How Porter County's population changed since 2020

Porter County gained 2,522 residents between the July 2020 and July 2024 estimates, a rise of 1.5%. That ranks 33rd 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, Porter County recorded 6,927 births and 7,871 deaths, a natural change of -944. Net international migration added +702 and net domestic migration, people moving to or from other US counties, came to +2,909. The largest single component was domestic migration, which added 2,909 people.

173.3k2020174.6k2021175.0k2022175.3k2023175.9k2024
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
6,927
Deaths
7,871
Net international migration
+702
Net domestic migration
+2,909
Change, July 2023 to July 2024
+571

Where Porter County is

The Census internal point of Porter County is at 41.509900, -87.071300. 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 Porter 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: Porter County internal point. Dark pin: Indianapolis.

Internal point

Decimal
41.509900, -87.071300
DMS
41°30'35.64"N 87°04'16.68"W
UTM
16N 494050.0E 4595365.8N
Geohash
dp6h4ssse
Plus code
86HJGW5H+XF

Towns in Porter County

8 incorporated places of 1,000+ people have residents in Porter County, 102,609 people together, or 58% of the county. Each figure counts only the part of the town inside Porter County; towns marked "part" extend into another county. The largest is Portage with 38,576.

  1. 01Portage38,576
  2. 02Valparaiso35,065
  3. 03Chesterton14,655
  4. 04Porter5,190
  5. 05Hebron3,746
  6. 06Burns Harbor2,147
  7. 07Kouts2,058
  8. 08Ogden Dunes1,172
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Porter County

The Census 2024 county adjacency file lists 6 neighbors for Porter County, including 2 across a state line. The most populous is Cook County, IL, with 5,182,617 residents. Distances run between Census internal points in a straight line.

Distance to Indianapolis and the nearest big city

Indianapolis is 129.5 miles SSE of Porter County's internal point in a straight line. The nearest place of 100,000 or more is Chicago, IL (population 2,721,308), 38.9 miles away. The nearest place of 10,000 or more is Valparaiso, IN (population 35,065), 2.3 miles away.

Porter County FIPS code

The FIPS code of Porter County is 18127: state code 18 for Indiana plus county code 127. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $79,398.

Questions people ask

What is the population of Porter County, Indiana?

The Census Vintage 2024 estimate for July 1, 2024 is 175,860. That is up 2,522 people (1.5%) from the July 2020 estimate of 173,338.

What is the FIPS code of Porter County?

18127. The first two digits (18) are Indiana; the last three (127) identify the county.

What is the largest town in Porter County?

Portage, with 38,576 residents inside Porter County in 2024.

Which counties border Porter County?

6 county-equivalents border it in the Census 2024 adjacency file: Cook County, IL; Lake County, IN; Berrien County, MI; LaPorte County, IN; Jasper County, IN; Starke 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.