Winnebago 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
Rockford1145,270148,670-0.58%2,23265.1City
Loves Park223,31223,404-0.1%1,42816.3City
Machesney Park322,52922,932-0.45%1,77612.7Village
Roscoe410,80510,957-0.35%1,05310.3Village
South Beloit57,8657,975-0.36%1,2806.1City
Rockton67,7407,851-0.36%1,1286.9Village
Winnebago72,8592,922-0.56%1,4781.9Village
Cherry Valley82,8532,896-0.38%3398.4Village
Pecatonica92,0292,080-0.64%1,5811.3Village
Durand101,3641,390-0.51%1,4840.9Village

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?

Durand is the smallest city in Winnebago County.

How many cities are in Winnebago County?

There are 10 cities in Winnebago County, Illinois.

Frequently Asked Questions