Whiteside 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
Sterling114,39714,839-0.77%2,4215.9City
Rock Falls28,5438,769-0.66%2,1454.0City
Morrison33,9524,067-0.73%1,5692.5City
Fulton43,5403,646-0.76%1,5142.3City
Prophetstown51,8911,942-0.68%1,4121.3City
Erie61,4751,515-0.67%1,0691.4Village
Albany7842857-0.47%7861.1Village
Tampico8670693-0.89%1,7010.4Village
Lyndon9521535-0.76%6880.8Village
Galt101332047.26%4550.3CDP
Deer Grove1137360%900.4Village

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 Whiteside County, Illinois?

Sterling is the largest city in Whiteside County.

What is the smallest city in Whiteside County, Illinois?

Deer Grove is the smallest city in Whiteside County.

How many cities are in Whiteside County?

There are 11 cities in Whiteside County, Illinois.

Frequently Asked Questions