Henry County, Illinois Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Kewanee112,14312,458-0.65%1,8406.6City
Geneseo26,5206,540-0.08%1,3844.7City
Colona34,9575,036-0.4%1,2983.8City
Galva42,3992,459-0.62%8682.8City
Cambridge52,0342,085-0.64%1,0222.0Village
Orion61,7171,755-0.58%1,8360.9Village
Atkinson7932956-0.64%4891.9Town
Annawan8861884-0.69%4022.1Town
Woodhull9733753-0.68%8350.9Village
Alpha10653672-0.76%2,1000.3Village
Andover11536554-0.92%5411.0Village
Ophiem122221807.77%1881.2CDP
Hooppole13172179-1.15%4620.4Village
Cleveland14158162-0.63%5370.3Village
Osco151391107.75%7430.2CDP
Bishop Hill161131130%2120.5Village
Nekoma1761488.93%4660.1CDP
Swedona1837955.71%1310.3CDP
Lynn Center1928397.69%1430.2CDP

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Henry County, Illinois?

Kewanee is the largest city in Henry County.

What is the smallest city in Henry County, Illinois?

Lynn Center is the smallest city in Henry County.

How many cities are in Henry County?

There are 19 cities in Henry County, Illinois.

Frequently Asked Questions