There are 27 cities in Sangamon County, Illinois.

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City
Rank
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Springfield1112,335114,264-0.42%1,84360.94
Chatham214,46414,408-0.01%1,9817.30
Sherman34,5734,669-0.56%1,4593.13
Auburn44,4094,540-0.77%1,0664.14
Rochester53,8523,859-0.05%1,6352.36
Riverton63,4483,534-0.66%1,4942.31
Virden73,1473,225-0.57%1,6811.87
Pawnee82,6622,680-0.82%2,1611.23
Jerome91,6311,682-0.79%3,5080.47
Southern View101,5381,587-0.77%2,9130.53
Williamsville111,4291,437-0.21%1,1891.20
Leland Grove121,4011,449-0.85%2,2100.63
Grandview131,3621,405-0.87%4,0060.34
New Berlin141,3381,378-0.89%1,1851.13
Divernon151,1081,141-0.72%1,4150.78
Illiopolis168458440.36%1,9380.44
Pleasant Plains17805809-0.12%6031.33
Loami18789810-0.76%7801.01
Spaulding19775798-0.77%1,0330.75
Mechanicsburg206596580.15%6361.04
Thayer21613631-0.65%1,0050.61
Dawson22502517-0.79%5870.85
Buffalo23428446-1.16%1,2060.35
Curran242132120.47%1072
Clear Lake252072040.48%2,2500.09
Berlin26139143-0.71%1520.92
Cantrall27137141-0.73%5480.25
showing: 27 rows

Cities in Sangamon County, Illinois by Population (2024)

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 27 cities in Sangamon County, Illinois.

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