Monroe County Demographics

A map of Monroe County's Population by Race

Monroe County, Indiana has an estimated population of 140,965, a less than 1% change from the 139,718 recorded in the 2020 Census. The population is 80.7% White, 6.8% Asian, 4.8% Hispanic, 3.9% Multiracial, 3.5% Black, and 0.4% Native American/Other. This demographic dot map shows the population of Monroe County, with one dot drawn for each person counted by the Census, color-coded by race.

Monroe 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 Monroe County, that probability was 34.3% in 2020 and 33.9% in the most recent ACS estimates.

Monroe County is ranked the 12th most populous county in Indiana, out of 92 counties. Monroe County was ranked the 12th most populous county in the 2020 Census.

Monroe County's White Population

113,788 residents of Monroe County, or 80.7% of the population, identify as White. The share of White residents in Monroe County is higher than in Indiana overall, where 75.4% of the population is White. Monroe County ranks 77th statewide in terms of White residents as a share of the population, out of 92 counties.

Since the 2020 Census, Monroe County's White population has grown by an estimated 1.2%. White residents' share of Monroe County's population has remained roughly unchanged at 80.7%.

Monroe County is less White than neighboring Brown County (94.2% White), Lawrence County (93.3% White), Morgan County (93.5% White), Owen County (95% White), and Greene County (95.2% White).

Monroe County's Black Population

4,864 residents of Monroe County, or 3.5% of the population, identify as Black. The share of Black residents in Monroe County is lower than in Indiana overall, where 9.1% of the population is Black. Monroe County ranks 22nd statewide in terms of Black residents as a share of the population, out of 92 counties.

Since the 2020 Census, Monroe County's Black population has declined by an estimated 3.0%. Black residents' share of Monroe County's population has remained roughly unchanged at 3.5%.

Monroe County is more Black than neighboring Brown County (0.3% Black), Lawrence County (0.2% Black), Morgan County (0.8% Black), Owen County (0.8% Black), and Greene County (0.5% Black).

Monroe County's Asian Population

9,618 residents of Monroe County, or 6.8% of the population, identify as Asian. The share of Asian residents in Monroe County is slightly higher than in Indiana overall, where 2.6% of the population is Asian. Monroe County ranks 4th statewide in terms of Asian residents as a share of the population, out of 92 counties.

Since the 2020 Census, Monroe County's Asian population has grown by an estimated 15.2%. Asian residents' share of Monroe County's population has increased from 6.0% to 6.8%.

Monroe County is more Asian than neighboring Brown County (0.6% Asian), Lawrence County (0.6% Asian), Morgan County (0.5% Asian), Owen County (0.6% Asian), and Greene County (0.2% Asian).

Monroe County's Hispanic Population

6,736 residents of Monroe County, or 4.8% of the population, identify as Hispanic. The share of Hispanic residents in Monroe County is slightly lower than in Indiana overall, where 8.6% of the population is Hispanic. Monroe County ranks 33rd statewide in terms of Hispanic residents as a share of the population, out of 92 counties.

Since the 2020 Census, Monroe County's Hispanic population has grown by an estimated 5.9%. Hispanic residents' share of Monroe County's population has remained roughly unchanged at 4.8%.

Monroe County is more Hispanic than neighboring Brown County (1.9% Hispanic), Lawrence County (2% Hispanic), Morgan County (2.1% Hispanic), Owen County (1.5% Hispanic), and Greene County (2.1% Hispanic).

Monroe County's Native American/Other Population

504 residents of Monroe 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 Monroe County is comparable to the share in Indiana overall, where 0.5% of the population is Native American/Other. Monroe County ranks 25th statewide in terms of Native American/Other residents as a share of the population, out of 92 counties.

Since the 2020 Census, Monroe County's Native American/Other population has declined by an estimated 36.8%. Native American/Other residents' share of Monroe County's population has remained roughly unchanged at 0.4%.

Monroe County is more Native American/Other than neighboring Morgan County (0.3% Native American/Other), Owen County (0.2% Native American/Other), and Greene County (0.2% Native American/Other). Monroe County is less Native American/Other than neighboring Brown County (0.7% Native American/Other), and Lawrence County (0.8% Native American/Other).

Monroe County's Multiracial Population

5,455 residents of Monroe County, or 3.9% of the population, identify as Multiracial. The share of Multiracial residents in Monroe County is comparable to the share in Indiana overall, where 3.8% of the population is Multiracial. Monroe County ranks 7th statewide in terms of Multiracial residents as a share of the population, out of 92 counties.

Since the 2020 Census, Monroe County's Multiracial population has declined by an estimated 18.7%. Multiracial residents' share of Monroe County's population has decreased from 4.8% to 3.9%.

Monroe County is more Multiracial than neighboring Brown County (2.3% Multiracial), Lawrence County (3.1% Multiracial), Morgan County (2.7% Multiracial), Owen County (1.9% Multiracial), and Greene County (1.8% 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.