Quad Cities, Iowa/Illinois

Quad Cities, Iowa/Illinois: the places inside it, the companies based here, and where this atlas has research on it.

area · North America · page prepared 2026-11-07

Known for Mississippi River

Visiting rather than moving? The free guidebook for Quad Cities →

A

Quad Cities at a glance

Rolled up from the 2 regions inside Quad Cities on this site.

Population—
registry estimate
Places inside2
2 with a full /local page
Businesses on file7,827
business register, all places inside
Companies headquartered2
in the company directory
Who represents them1
places with a /politics page
Property & employers1 · 0
/property and /employers records
B

Largest places in Quad Cities

By registry population; places with a full /local page are marked.

  1. 1.Moline, Illinois full42,985
R

Inside Quad Cities

2 regions have Quad Cities as their parent.

C

Companies based in Quad Cities

2 companies in the Research Upon directory have their headquarters somewhere in Quad Cities. Search them by name or industry.

areaAbout this page: figures for the whole of Quad Cities, Iowa/Illinois are rolled up from every region inside it; each place inside has a page of its own, and the companies headquartered here are listed above.