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Monroe County, IN Demographics

Monroe County, IN is the 12th most populous of 92 counties in Indiana, with 139,718 residents across 395 square miles. That is about 354 people per square mile.

At the 2020 census

Population 139,718
Land area 395 sq mi
Density 354 / sq mi

Data: 2020 Census · American Community Survey 2024

How Monroe County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Monroe County, IN

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Monroe County, IN — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Monroe County, IN

Name Population Sq mi Per sq mi
Census Tract 2.02 7,349 0.5 13,892
Census Tract 10.02 6,521 5.0 1,311
Census Tract 16 6,272 0.6 10,369
Census Tract 13.03 6,125 7.1 857
Census Tract 12 5,910 64.4 92
Census Tract 15.01 5,675 22.8 249
Census Tract 13.01 5,646 57.9 98
Census Tract 9.04 5,470 1.9 2,888
Census Tract 10.01 5,464 1.9 2,803
Census Tract 1 5,268 0.5 10,904
Census Tract 9.03 5,229 1.7 3,120
Census Tract 11.01 5,216 1.4 3,830
Census Tract 5.01 5,131 3.7 1,380
Census Tract 4.02 4,950 2.0 2,427
Census Tract 4.01 4,628 1.3 3,452
Census Tract 11.02 4,538 2.5 1,833
Census Tract 3.01 4,008 0.7 5,556
Census Tract 13.04 3,919 4.5 861
Census Tract 6.01 3,559 1.2 2,914
Census Tract 14.03 3,340 82.8 40
Census Tract 5.02 3,320 1.9 1,793
Census Tract 6.02 3,134 1.1 2,978
Census Tract 11.03 3,080 6.1 506
Census Tract 2.01 3,070 0.9 3,603
Census Tract 15.02 3,051 19.4 157
Census Tract 8.02 3,028 7.0 433
Census Tract 7 2,990 19.2 155
Census Tract 3.02 2,911 0.7 4,035
Census Tract 8.01 2,460 3.1 796
Census Tract 13.05 2,418 2.6 917
Census Tract 9.01 2,410 0.8 3,180
Census Tract 14.01 1,977 34.3 58
Census Tract 14.04 1,651 33.1 50

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About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →