St. Joseph County, IN Demographics
St. Joseph County, IN is the 5th most populous of 92 counties in Indiana, with 272,912 residents across 458 square miles. That is about 596 people per square mile.
At the 2020 census
| Population | 272,912 |
|---|---|
| Land area | 458 sq mi |
| Density | 596 / sq mi |
Data: 2020 Census · American Community Survey 2024
How St. Joseph 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: St. Joseph County, IN
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around St. Joseph County, IN — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in St. Joseph County, IN
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 112.03 | 10,008 | 3.2 | 3,097 |
| Census Tract 116.02 | 7,695 | 17.1 | 449 |
| Census Tract 114.04 | 6,634 | 3.6 | 1,856 |
| Census Tract 113.03 | 6,157 | 4.2 | 1,472 |
| Census Tract 114.03 | 6,117 | 3.0 | 2,055 |
| Census Tract 103 | 5,799 | 1.6 | 3,646 |
| Census Tract 115.06 | 5,309 | 1.9 | 2,799 |
| Census Tract 114.06 | 5,231 | 10.2 | 511 |
| Census Tract 32 | 5,084 | 1.5 | 3,407 |
| Census Tract 116.03 | 4,993 | 2.8 | 1,778 |
| Census Tract 117.04 | 4,986 | 15.8 | 316 |
| Census Tract 110.02 | 4,362 | 3.3 | 1,338 |
| Census Tract 111 | 4,341 | 6.8 | 641 |
| Census Tract 11 | 4,330 | 1.2 | 3,471 |
| Census Tract 108 | 4,302 | 53.8 | 80 |
| Census Tract 113.05 | 4,286 | 2.0 | 2,105 |
| Census Tract 119 | 4,212 | 10.9 | 385 |
| Census Tract 117.01 | 4,105 | 2.6 | 1,562 |
| Census Tract 118.03 | 4,077 | 1.5 | 2,731 |
| Census Tract 109.01 | 4,056 | 12.7 | 320 |
| Census Tract 107 | 3,989 | 1.2 | 3,371 |
| Census Tract 106 | 3,969 | 0.9 | 4,550 |
| Census Tract 115.05 | 3,931 | 2.1 | 1,878 |
| Census Tract 115.01 | 3,926 | 0.8 | 4,899 |
| Census Tract 113.08 | 3,924 | 2.7 | 1,480 |
| Census Tract 109.02 | 3,911 | 17.0 | 230 |
| Census Tract 102.01 | 3,889 | 0.9 | 4,220 |
| Census Tract 31 | 3,879 | 0.6 | 6,106 |
| Census Tract 34 | 3,855 | 3.8 | 1,004 |
| Census Tract 114.05 | 3,718 | 3.8 | 981 |
| Census Tract 120 | 3,670 | 45.9 | 80 |
| Census Tract 14 | 3,632 | 0.6 | 5,746 |
| Census Tract 117.03 | 3,631 | 3.2 | 1,152 |
| Census Tract 2 | 3,552 | 1.1 | 3,304 |
| Census Tract 10 | 3,549 | 0.7 | 4,813 |
| Census Tract 123 | 3,482 | 42.5 | 82 |
| Census Tract 121 | 3,402 | 42.4 | 80 |
| Census Tract 26 | 3,401 | 1.1 | 3,186 |
| Census Tract 113.06 | 3,301 | 2.5 | 1,305 |
| Census Tract 116.04 | 3,279 | 2.9 | 1,135 |
| Census Tract 104 | 3,111 | 1.2 | 2,592 |
| Census Tract 113.09 | 3,096 | 2.1 | 1,477 |
| Census Tract 15 | 3,079 | 0.7 | 4,361 |
| Census Tract 105 | 3,017 | 1.5 | 1,971 |
| Census Tract 113.07 | 3,014 | 0.9 | 3,198 |
| Census Tract 22 | 3,006 | 0.5 | 5,616 |
| Census Tract 33 | 2,963 | 0.4 | 6,822 |
| Census Tract 113.10 | 2,877 | 0.8 | 3,619 |
| Census Tract 122 | 2,873 | 22.3 | 129 |
| Census Tract 24 | 2,857 | 0.4 | 6,729 |
| Census Tract 101 | 2,848 | 0.7 | 4,332 |
| Census Tract 110.01 | 2,690 | 10.8 | 250 |
| Census Tract 35 | 2,670 | 0.9 | 3,091 |
| Census Tract 3.02 | 2,641 | 1.3 | 2,064 |
| Census Tract 3.01 | 2,617 | 0.6 | 4,404 |
| Census Tract 4 | 2,464 | 0.4 | 5,527 |
| Census Tract 113.04 | 2,456 | 1.6 | 1,575 |
| Census Tract 118.04 | 2,444 | 1.3 | 1,811 |
| Census Tract 13 | 2,363 | 0.5 | 4,719 |
| Census Tract 16 | 2,318 | 0.5 | 4,254 |
| Census Tract 25 | 2,213 | 0.5 | 4,608 |
| Census Tract 6 | 2,199 | 0.4 | 5,884 |
| Census Tract 28 | 2,195 | 1.8 | 1,187 |
| Census Tract 12 | 2,195 | 0.6 | 3,842 |
| Census Tract 1 | 2,191 | 0.9 | 2,502 |
| Census Tract 30 | 1,864 | 0.4 | 4,363 |
| Census Tract 115.03 | 1,855 | 2.9 | 630 |
| Census Tract 124 | 1,791 | 52.6 | 34 |
| Census Tract 5 | 1,707 | 0.4 | 3,881 |
| Census Tract 20 | 1,698 | 0.4 | 4,633 |
| Census Tract 17 | 1,697 | 0.6 | 2,907 |
| Census Tract 102.02 | 1,678 | 0.4 | 4,264 |
| Census Tract 7 | 1,612 | 0.4 | 4,339 |
| Census Tract 27 | 1,592 | 1.5 | 1,096 |
| Census Tract 115.04 | 1,572 | 3.6 | 431 |
| Census Tract 8 | 1,510 | 0.3 | 4,429 |
| Census Tract 23 | 1,406 | 0.6 | 2,198 |
| Census Tract 19 | 1,393 | 0.3 | 4,718 |
| Census Tract 9 | 1,358 | 0.5 | 2,633 |
| Census Tract 29 | 1,308 | 0.4 | 3,450 |
| Census Tract 21 | 1,256 | 0.4 | 2,791 |
| Census Tract 118.01 | 1,244 | 1.9 | 668 |
Related places
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Metro areas containing St. Joseph County
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.