Ogle 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
Rochelle19,2819,432-0.41%67513.8City
Byron23,7683,784-0.11%8104.7City
Oregon33,5493,616-0.48%1,8421.9City
Mount Morris42,7962,848-0.46%1,7921.6Village
Davis Junction52,5452,5110.32%6064.2Village
Polo62,2422,281-0.44%1,5451.5City
Westlake Village71,6871,7447.73%1,8320.9CDP
Forreston81,4021,432-0.57%1,4870.9Village
Stillman Valley91,0561,072-0.38%1,8530.6Village
New Milford10789793-0.13%3062.6Village
Creston11616627-0.48%5381.1Village
Leaf River12421429-0.47%4840.9Village
Monroe Center13404412-0.49%3331.2Village
Holcomb141951577.74%2,1910.1CDP
Baileyville151601268.11%6610.2CDP
Adeline167476-1.33%2780.3Village

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 Ogle County, Illinois?

Rochelle is the largest city in Ogle County.

What is the smallest city in Ogle County, Illinois?

Adeline is the smallest city in Ogle County.

How many cities are in Ogle County?

There are 16 cities in Ogle County, Illinois.

Frequently Asked Questions