Sangamon 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
Springfield1111,959114,298-0.52%1,82861.3City
Chatham214,56114,4160.25%1,9667.4Village
Sherman34,5764,668-0.5%1,4563.1Village
Auburn44,4104,545-0.77%1,0694.1City
Rochester53,9123,8580.33%1,4782.6Village
Riverton63,4563,531-0.55%1,0973.2Village
Pawnee72,7002,6840.15%2,0271.3Village
Jerome81,6301,686-0.85%3,5280.5Village
Southern View91,5391,590-0.84%2,2970.7Village
Williamsville101,4271,437-0.21%9221.5Village
Leland Grove111,4001,450-0.92%2,2290.6City
Grandview121,3641,404-0.73%4,0720.3Village
New Berlin131,3431,379-0.67%1,1881.1Village
Divernon141,1051,141-0.81%1,4480.8Village
Illiopolis15826844-0.6%1,2200.7Village
Pleasant Plains16802809-0.25%6011.3Village
Loami17793809-0.5%7841.0Village
Spaulding18779798-0.64%1,0390.8Village
Mechanicsburg19657661-0.15%6341.0Village
Thayer20609631-0.98%9980.6Village
Dawson21503517-0.79%6350.8Village
Buffalo22431446-0.92%1,2490.3Village
Cantrall23137141-0.73%5480.3Village

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 Sangamon County, Illinois?

Springfield is the largest city in Sangamon County.

What is the smallest city in Sangamon County, Illinois?

Cantrall is the smallest city in Sangamon County.

How many cities are in Sangamon County?

There are 23 cities in Sangamon County, Illinois.

Frequently Asked Questions