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Blaine County, ID Demographics

Blaine County, ID is the 16th most populous of 44 counties in Idaho, with 24,272 residents across 2,638 square miles. That is about 9 people per square mile.

At the 2020 census

Population 24,272
Land area 2,638 sq mi
Density 9 / sq mi

Data: 2020 Census · American Community Survey 2024

How Blaine 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: Blaine County, ID

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

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

Census tracts in Blaine County, ID

Name Population Sq mi Per sq mi
Census Tract 9602.01 6,226 2.9 2,128
Census Tract 9602.02 4,861 311.7 16
Census Tract 9601.02 3,682 251.7 15
Census Tract 9603.02 2,453 399.1 6
Census Tract 9603.01 2,155 167.6 13
Census Tract 9605.01 1,801 4.0 450
Census Tract 9605.02 1,577 104.4 15
Census Tract 9601.01 1,517 1,396.3 1

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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 →