Armstrong County, PA Demographics
Armstrong County, PA is the 38th most populous of 67 counties in Pennsylvania, with 65,558 residents across 653 square miles. That is about 100 people per square mile.
At the 2020 census
| Population | 65,558 |
|---|---|
| Land area | 653 sq mi |
| Density | 100 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Armstrong 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: Armstrong County, PA
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Armstrong County, PA — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Armstrong County, PA
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9512 | 5,753 | 53.1 | 108 |
| Census Tract 9505 | 5,342 | 31.4 | 170 |
| Census Tract 9509 | 4,922 | 16.8 | 294 |
| Census Tract 9501 | 4,712 | 102.3 | 46 |
| Census Tract 9516 | 4,605 | 40.7 | 113 |
| Census Tract 9511 | 3,921 | 1.0 | 3,935 |
| Census Tract 9508 | 3,789 | 67.5 | 56 |
| Census Tract 9507 | 3,679 | 49.9 | 74 |
| Census Tract 9517 | 3,452 | 65.2 | 53 |
| Census Tract 9503 | 3,276 | 57.1 | 57 |
| Census Tract 9506 | 3,248 | 51.2 | 63 |
| Census Tract 9515 | 2,867 | 0.8 | 3,378 |
| Census Tract 9510 | 2,859 | 0.6 | 4,435 |
| Census Tract 9514 | 2,472 | 14.0 | 176 |
| Census Tract 9513 | 2,411 | 16.5 | 147 |
| Census Tract 9504 | 2,295 | 26.8 | 86 |
| Census Tract 9518 | 2,149 | 0.4 | 4,892 |
| Census Tract 9502 | 2,070 | 56.8 | 36 |
| Census Tract 9519 | 1,736 | 1.3 | 1,367 |
Related places
Other counties nearby
Nearest counties
Metro areas containing Armstrong 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.