Cities in Winnebago County, Illinois by Population (2024)

There are 25 cities in Winnebago County, Illinois.

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.)

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City
2024 Population
Rockford145,019
Belvidere25,063
Loves Park23,330
Machesney Park22,572
Roscoe10,783
South Beloit7,841
Rockton7,725
Poplar Grove5,159
Candlewick Lake4,932
Winnebago2,863
Cherry Valley2,845
Davis Junction2,540
Lake Summerset2,272
Pecatonica2,026
Durand1,360
Westlake Village1,218
Stillman Valley1,048
Timberlane909
Argyle799
New Milford787
Davis564
Leaf River418
Caledonia181
Holcomb177
Adeline74
showing: 25 rows

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 Winnebago County, Illinois?

Rockford is the largest city in Winnebago County.

What is the smallest city in Winnebago County, Illinois?

Adeline is the smallest city in Winnebago County.

How many cities are in Winnebago County?

There are 25 cities in Winnebago County, Illinois.

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