Black Hawk County, IA Demographics
Black Hawk County, IA is the 5th most populous of 99 counties in Iowa, with 131,144 residents across 566 square miles. That is about 232 people per square mile.
At the 2020 census
| Population | 131,144 |
|---|---|
| Land area | 566 sq mi |
| Density | 232 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Black Hawk 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: Black Hawk County, IA
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Black Hawk County, IA — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Black Hawk County, IA
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 26.05 | 6,557 | 6.5 | 1,005 |
| Census Tract 26.01 | 6,032 | 6.7 | 895 |
| Census Tract 25 | 5,849 | 1.7 | 3,345 |
| Census Tract 30.01 | 5,485 | 19.3 | 285 |
| Census Tract 26.06 | 5,172 | 38.3 | 135 |
| Census Tract 20 | 5,171 | 4.3 | 1,214 |
| Census Tract 14 | 4,542 | 1.4 | 3,151 |
| Census Tract 22 | 4,229 | 1.3 | 3,235 |
| Census Tract 13.01 | 4,153 | 0.8 | 4,959 |
| Census Tract 30.02 | 4,000 | 118.0 | 34 |
| Census Tract 26.04 | 3,985 | 56.4 | 71 |
| Census Tract 24 | 3,941 | 1.4 | 2,871 |
| Census Tract 29.02 | 3,854 | 51.4 | 75 |
| Census Tract 27 | 3,826 | 82.2 | 47 |
| Census Tract 23.03 | 3,801 | 0.6 | 6,658 |
| Census Tract 15.02 | 3,786 | 2.3 | 1,647 |
| Census Tract 10 | 3,732 | 0.7 | 5,200 |
| Census Tract 13.02 | 3,688 | 0.8 | 4,606 |
| Census Tract 15.03 | 3,645 | 2.4 | 1,521 |
| Census Tract 8 | 3,613 | 4.1 | 883 |
| Census Tract 15.01 | 3,064 | 2.8 | 1,076 |
| Census Tract 28 | 2,901 | 133.3 | 22 |
| Census Tract 11 | 2,861 | 0.5 | 5,694 |
| Census Tract 3 | 2,857 | 0.5 | 5,329 |
| Census Tract 2 | 2,855 | 0.4 | 6,666 |
| Census Tract 16 | 2,700 | 7.9 | 342 |
| Census Tract 17.02 | 2,516 | 3.4 | 746 |
| Census Tract 23.04 | 2,450 | 0.5 | 5,260 |
| Census Tract 9 | 2,384 | 3.0 | 806 |
| Census Tract 12 | 2,282 | 0.5 | 4,552 |
| Census Tract 19 | 2,094 | 3.9 | 537 |
| Census Tract 23.01 | 2,071 | 0.8 | 2,576 |
| Census Tract 17.01 | 1,973 | 0.6 | 3,218 |
| Census Tract 1 | 1,773 | 0.7 | 2,407 |
| Census Tract 4 | 1,590 | 1.2 | 1,320 |
| Census Tract 5 | 1,577 | 0.7 | 2,331 |
| Census Tract 18 | 1,493 | 0.9 | 1,660 |
| Census Tract 7 | 1,377 | 0.3 | 4,638 |
| Census Tract 29.01 | 1,265 | 3.0 | 415 |
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Metro areas containing Black Hawk 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.