Henry County Map, Illinois

Written and Fact-checked by | Updated On: April 26, 2026 | 14:30 ET

Map of Henry County - Henry County is a county located in the U.S. state of Illinois. Henry County Map showing cities, highways, important places and water bodies. Get Where is Henry County located in the map, major cities in Henry county, population, areas, and places of interest.

Henry County Map, Illinois

Henry County Map, Illinois

About Henry County Map, Illinois: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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Henry County, Illinois

Henry County is a county located in the U.S. state of Illinois. It's county seat is Cambridge. As per 2020 census, the population of Henry County is 48907 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 822 sq mi (2,129 km2). Henry County was established on 1825.

Facts about Henry County, Illinois

CountryUnited States
StateIllinois
RegionNorthwestern Illinois
County SeatCambridge
Named AfterPatrick Henry
Established1825
Organized1825
Coordinates41.35° N, 90.13° W
Total Area~826 sq mi
Land Area~826 sq mi
Water Area~1 sq mi
Population (2020)~49,284
Population RankMid-sized county in Illinois
Largest CityKewanee
Main IndustriesManufacturing, Agriculture, Healthcare, Education
Major HighwaysInterstate 80, U.S. Route 34
Time ZoneCentral Time (UTC−06:00)
Known ForKewanee Boiler Company history, farming, small-town communities
Websitehttps://www.henrycountyillinois.com

Ctities in Henry county

City NameTypePopulation (2020)Pop. DensityArea
AlphaVillage6752,184.5/sq mi (843.4/km2)0.309 sq mi (0.8 km2)
AndoverVillage555560.0/sq mi (216.2/km2)0.991 sq mi (2.57 km2)
AnnawanTown884414.1/sq mi (159.9/km2)2.135 sq mi (5.53 km2)
AtkinsonTown965502.3/sq mi (194.0/km2)1.921 sq mi (4.98 km2)
Bishop HillVillage113212.4/sq mi (82.0/km2)0.532 sq mi (1.38 km2)
CambridgeVillage2,0861,047.7/sq mi (404.5/km2)1.991 sq mi (5.16 km2)
ClevelandVillage163554.4/sq mi (214.1/km2)0.294 sq mi (0.76 km2)
ColonaCity5,0451,321.4/sq mi (510.2/km2)3.818 sq mi (9.89 km2)
GalvaCity2,470896.6/sq mi (346.2/km2)2.755 sq mi (7.14 km2)
GeneseoCity6,5391,407.4/sq mi (543.4/km2)4.646 sq mi (12.03 km2)
HooppoleVillage180483.9/sq mi (186.8/km2)0.372 sq mi (0.96 km2)
KewaneeCity12,5091,896.2/sq mi (732.1/km2)6.597 sq mi (17.09 km2)
OrionVillage1,7541,858.1/sq mi (717.4/km2)0.944 sq mi (2.44 km2)
WoodhullVillage754854.9/sq mi (330.1/km2)0.882 sq mi (2.28 km2)
Coal ValleyVillage3,8731,244.5/sq mi (480.5/km2)3.112 sq mi (8.06 km2)

Roads and Highways in Henry County, Illinois

Henry County is well-connected by major highways that link it to the Quad Cities, Peoria, and surrounding parts of western Illinois.

  • Interstate 80 – runs east-west through the northern part of the county, connecting Geneseo to the Quad Cities and Ottawa
  • U.S. Route 6 – parallels I-80, linking Geneseo to Moline and Princeton
  • U.S. Route 34 – runs east-west, connecting Kewanee to Galesburg and Princeton
  • Illinois Route 78 – runs north-south, linking Kewanee to Cambridge and Jacksonville
  • Illinois Route 81 – runs east-west, connecting Kewanee to Galva and Alpha

Neighboring Counties of Henry County

  • Rock Island County (northwest)
  • Bureau County (east)
  • Stark County (south)
  • Knox County (southwest)
  • Mercer County (west)
  • Whiteside County (north)

Top Attractions in Henry County, Illinois

Henry County offers a mix of small-town charm, parks, and local history across its communities.

  • Johnson Sauk Trail State Recreation Area – A popular park for camping, fishing, and hiking.
  • Bishop Hill Historic Site – A preserved 19th-century Swedish settlement with museums and shops.
  • Geneseo Downtown Historic District – Features shops, restaurants, and historic architecture.
  • Windmont Park – A community park in Kewanee with playgrounds and open space.
  • Ryan’s Round Barn – A historic barn and event venue with unique architecture.
  • Hennepin Canal Parkway State Park (nearby) – Offers trails, boating, and scenic views.
  • Henry County Fairgrounds – Hosts annual fairs and community events.

Distance from Henry County to Nearby Cities

  • Geneseo to Moline – 20 mi (32 km)
  • Kewanee to Galesburg – 30 mi (48 km)
  • Geneseo to Peoria – 55 mi (89 km)
  • Geneseo to Rockford – 110 mi (177 km)
  • Geneseo to Chicago – 140 mi (225 km)

FAQs about Henry County

Where is Henry County located?

Henry County is located in northwestern Illinois, near the Quad Cities region.

What is Henry County known for?

The county is known for Bishop Hill Historic Site, parks, and its small-town communities.

What is the county seat of Henry County?

Cambridge is the county seat, while Kewanee and Geneseo are among the largest cities in Henry County.

Are there outdoor activities in Henry County?

Yes, visitors can enjoy parks, trails, lakes, and outdoor recreation areas throughout the county.

How can I reach Henry County?

Henry County is accessible via Interstate 80, U.S. Routes 6 and 34, and several Illinois state highways.