Porter County Demographics

A map of Porter County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	138,257	136,993	79.1%	79.1%
Hispanic	20,367	18,904	11.7%	10.9%
Black	7,501	7,246	4.3%	4.2%
Multiracial	5,412	6,963	3.1%	4.0%
Asian	2,533	2,197	1.4%	1.3%
Native American/Other	748	912	0.4%	0.5%

Porter County, Indiana has an estimated population of 174,818, a less than 1% change from the 173,215 recorded in the 2020 Census. The population is 79.1% White, 11.7% Hispanic, 4.3% Black, 3.1% Multiracial, 1.4% Asian, and 0.4% Native American/Other. This demographic dot map shows the population of Porter County, with one dot drawn for each person counted by the Census, color-coded by race.

Porter is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Indiana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Porter County, that probability was 35.9% in 2020 and 35.8% in the most recent ACS estimates.

Porter County is ranked the 10th most populous county in Indiana, out of 92 counties. Porter County was ranked the 10th most populous county in the 2020 Census.

Porter County's White Population

138,257 residents of Porter County, or 79.1% of the population, identify as White. The share of White residents in Porter County is slightly higher than in Indiana overall, where 75.4% of the population is White. Porter County ranks 81st statewide in terms of White residents as a share of the population, out of 92 counties.

Since the 2020 Census, Porter County's White population has remained roughly the same. White residents' share of Porter County's population has remained roughly unchanged at 79.1%.

Porter County is more White than neighboring Lake County (51.4% White), and LaPorte County (76% White). Porter County is less White than neighboring Starke County (91% White), Jasper County (86.9% White), and Pulaski County (91.3% White).

Porter County's Black Population

7,501 residents of Porter County, or 4.3% of the population, identify as Black. The share of Black residents in Porter County is slightly lower than in Indiana overall, where 9.1% of the population is Black. Porter County ranks 21st statewide in terms of Black residents as a share of the population, out of 92 counties.

Since the 2020 Census, Porter County's Black population has grown by an estimated 3.5%. Black residents' share of Porter County's population has remained roughly unchanged at 4.3%.

Porter County is more Black than neighboring Starke County (0.5% Black), Jasper County (0.7% Black), and Pulaski County (0.2% Black). Porter County is less Black than neighboring Lake County (22.7% Black), and LaPorte County (10.3% Black).

Porter County's Asian Population

2,533 residents of Porter County, or 1.4% of the population, identify as Asian. The share of Asian residents in Porter County is comparable to the share in Indiana overall, where 2.6% of the population is Asian. Porter County ranks 17th statewide in terms of Asian residents as a share of the population, out of 92 counties.

Since the 2020 Census, Porter County's Asian population has grown by an estimated 15.3%. Asian residents' share of Porter County's population has remained roughly unchanged at 1.4%.

Porter County is more Asian than neighboring LaPorte County (0.6% Asian), Starke County (0.3% Asian), Jasper County (0.2% Asian), and Pulaski County (0.4% Asian). Porter County is less Asian than neighboring Lake County (1.6% Asian).

Porter County's Hispanic Population

20,367 residents of Porter County, or 11.7% of the population, identify as Hispanic. The share of Hispanic residents in Porter County is slightly higher than in Indiana overall, where 8.6% of the population is Hispanic. Porter County ranks 9th statewide in terms of Hispanic residents as a share of the population, out of 92 counties.

Since the 2020 Census, Porter County's Hispanic population has grown by an estimated 7.7%. Hispanic residents' share of Porter County's population has increased from 10.9% to 11.7%.

Porter County is more Hispanic than neighboring LaPorte County (7.6% Hispanic), Starke County (4.3% Hispanic), Jasper County (7.6% Hispanic), and Pulaski County (4.2% Hispanic). Porter County is less Hispanic than neighboring Lake County (20.9% Hispanic).

Porter County's Native American/Other Population

748 residents of Porter County, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Porter County is comparable to the share in Indiana overall, where 0.5% of the population is Native American/Other. Porter County ranks 34th statewide in terms of Native American/Other residents as a share of the population, out of 92 counties.

Since the 2020 Census, Porter County's Native American/Other population has declined by an estimated 18.0%. Native American/Other residents' share of Porter County's population has remained roughly unchanged at 0.4%.

Porter County is more Native American/Other than neighboring Starke County (0.2% Native American/Other), Jasper County (0% Native American/Other), and Pulaski County (0.2% Native American/Other). Porter County is less Native American/Other than neighboring Lake County (0.5% Native American/Other), and LaPorte County (0.6% Native American/Other).

Porter County's Multiracial Population

5,412 residents of Porter County, or 3.1% of the population, identify as Multiracial. The share of Multiracial residents in Porter County is comparable to the share in Indiana overall, where 3.8% of the population is Multiracial. Porter County ranks 20th statewide in terms of Multiracial residents as a share of the population, out of 92 counties.

Since the 2020 Census, Porter County's Multiracial population has declined by an estimated 22.3%. Multiracial residents' share of Porter County's population has decreased from 4.0% to 3.1%.

Porter County is more Multiracial than neighboring Lake County (2.9% Multiracial). Porter County is less Multiracial than neighboring LaPorte County (4.9% Multiracial), Starke County (3.6% Multiracial), Jasper County (4.6% Multiracial), and Pulaski County (3.7% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.