All counties →

Portage County, WI Demographics

Portage County, WI is the 23rd most populous of 72 counties in Wisconsin, with 70,377 residents across 801 square miles. That is about 88 people per square mile.

At the 2020 census

Population 70,377
Land area 801 sq mi
Density 88 / sq mi

Data: 2020 Census · American Community Survey 2024

How Portage 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: Portage County, WI

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

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

Census tracts in Portage County, WI

Name Population Sq mi Per sq mi
Census Tract 9605 7,185 27.5 261
Census Tract 9604 6,595 2.4 2,717
Census Tract 9612 6,257 139.8 45
Census Tract 9607.01 5,502 9.2 595
Census Tract 9606 5,497 86.5 64
Census Tract 9608 5,246 2.5 2,136
Census Tract 9613 4,884 174.5 28
Census Tract 9602 4,758 167.9 28
Census Tract 9601 4,619 144.4 32
Census Tract 9603 4,059 2.5 1,594
Census Tract 9611.01 3,904 32.2 121
Census Tract 9607.02 3,484 6.2 566
Census Tract 9609 3,135 0.7 4,245
Census Tract 9611.02 2,984 3.9 768
Census Tract 9610 2,268 0.5 4,650

Related places

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 →