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Columbia County, PA Demographics

Columbia County, PA is the 40th most populous of 67 counties in Pennsylvania, with 64,727 residents across 483 square miles. That is about 134 people per square mile.

At the 2020 census

Population 64,727
Land area 483 sq mi
Density 134 / sq mi

Data: 2020 Census · American Community Survey 2024

How Columbia 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: Columbia County, PA

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

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

Census tracts in Columbia County, PA

Name Population Sq mi Per sq mi
Census Tract 515 5,692 146.4 39
Census Tract 502 5,432 90.9 60
Census Tract 501 5,377 96.3 56
Census Tract 506 5,202 1.4 3,735
Census Tract 507 5,125 1.7 3,048
Census Tract 503 4,975 43.4 115
Census Tract 512 4,277 1.7 2,444
Census Tract 504 3,982 27.2 147
Census Tract 505 3,645 22.9 159
Census Tract 509 3,563 10.4 342
Census Tract 508 3,483 2.7 1,278
Census Tract 511.01 3,434 0.3 10,174
Census Tract 513 3,038 12.6 240
Census Tract 511.02 2,505 0.8 2,992
Census Tract 514 2,502 22.9 109
Census Tract 510 2,495 1.4 1,753

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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 →