Hamilton 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
Dahlgren1499503-0.2%4911.0Village
Broughton2178181-0.56%941.9Village
Belle Prairie City34850-2.04%1100.4Town
Macedonia429290%1070.3Village

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 Hamilton County, Illinois?

Dahlgren is the largest city in Hamilton County.

What is the smallest city in Hamilton County, Illinois?

Macedonia is the smallest city in Hamilton County.

How many cities are in Hamilton County?

There are 4 cities in Hamilton County, Illinois.

Frequently Asked Questions