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Davenport-Moline, IA-IL Combined Statistical Area Demographics

Davenport-Moline, IA-IL Combined Statistical Area is the 91st most populous of 184 combined statistical areas in the United States, with 474,019 residents across 3,402 square miles. That is about 139 people per square mile.

At the 2020 census

Population 474,019
Land area 3,402 sq mi
Density 139 / sq mi

Data: 2020 Census · American Community Survey 2024

How Davenport-Moline, IA-IL Combined Statistical Area compares to the US

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Central Location: Davenport-Moline, IA-IL Combined Statistical Area

Measured from the combined statistical area's main population center using 2020 census blocks.

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Counties in the Davenport-Moline, IA-IL Combined Statistical Area area

Name Population Sq mi Per sq mi
County Scott 174,669 458.1 381
Rock Island County, IL 144,672 427.5 338
County Henry 49,284 823.0 60
Clinton County, IA 46,460 695.0 67
Muscatine County 43,235 437.4 99
Mercer County 15,699 561.2 28

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About this page

This page shows demographics for a US combined statistical area from the 2020 census and the American Community Survey: population, land area, density, and how the region compares to national averages.

Combined areas are built from whole counties, listed below. Statistics aggregate the member counties' census tracts.

Read how BlockAtlas computes population within an area →