Yellowstone County, MT Demographics
Yellowstone County, MT is the most populous of 56 counties in Montana, with 164,731 residents across 2,633 square miles. That is about 63 people per square mile.
At the 2020 census
| Population | 164,731 |
|---|---|
| Land area | 2,633 sq mi |
| Density | 63 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Yellowstone 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: Yellowstone County, MT
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Yellowstone County, MT — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Yellowstone County, MT
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 14.04 | 8,681 | 21.7 | 400 |
| Census Tract 14.03 | 7,509 | 143.3 | 52 |
| Census Tract 18.01 | 7,313 | 5.9 | 1,235 |
| Census Tract 14.02 | 6,891 | 463.4 | 15 |
| Census Tract 13 | 6,482 | 1.7 | 3,812 |
| Census Tract 7.07 | 5,917 | 2.3 | 2,527 |
| Census Tract 7.01 | 5,459 | 2.5 | 2,209 |
| Census Tract 11 | 5,437 | 1.1 | 4,777 |
| Census Tract 9.02 | 5,415 | 2.1 | 2,537 |
| Census Tract 17.03 | 5,371 | 1.0 | 5,355 |
| Census Tract 9400.01 | 5,125 | 565.0 | 9 |
| Census Tract 7.06 | 5,073 | 1.5 | 3,300 |
| Census Tract 19.01 | 4,920 | 3.0 | 1,664 |
| Census Tract 9.01 | 4,756 | 4.9 | 971 |
| Census Tract 15.01 | 4,725 | 52.3 | 90 |
| Census Tract 17.04 | 4,719 | 3.9 | 1,217 |
| Census Tract 10 | 4,551 | 1.0 | 4,512 |
| Census Tract 8 | 4,418 | 7.7 | 576 |
| Census Tract 19.02 | 4,385 | 4.6 | 944 |
| Census Tract 17.02 | 4,352 | 1.8 | 2,381 |
| Census Tract 15.02 | 4,341 | 1,231.5 | 4 |
| Census Tract 5 | 4,333 | 0.9 | 4,786 |
| Census Tract 7.04 | 3,871 | 5.1 | 764 |
| Census Tract 7.05 | 3,860 | 0.7 | 5,350 |
| Census Tract 3 | 3,832 | 2.0 | 1,875 |
| Census Tract 9400.02 | 3,622 | 92.5 | 39 |
| Census Tract 18.05 | 3,534 | 0.9 | 3,787 |
| Census Tract 2 | 3,511 | 1.5 | 2,377 |
| Census Tract 4.02 | 3,196 | 0.9 | 3,384 |
| Census Tract 18.04 | 3,159 | 0.9 | 3,391 |
| Census Tract 6 | 3,057 | 0.9 | 3,429 |
| Census Tract 12 | 2,946 | 0.7 | 4,276 |
| Census Tract 4.01 | 2,762 | 0.5 | 5,789 |
| Census Tract 18.06 | 2,654 | 0.5 | 5,146 |
| Census Tract 7.08 | 2,487 | 1.8 | 1,373 |
| Census Tract 18.03 | 2,067 | 1.1 | 1,962 |
Related places
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Metro areas containing Yellowstone 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.