Sangamon County, Illinois
Sangamon County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 194,345 (2024)
ID: 194545
|
County | Official County Government |
Contact: DEP. AUDITOR
200 S 9TH ST, STE 201, SPRINGFIELD IL 62701-1967
|
|
GUS Population: 112,949 (2024)
ID: 162629
|
Municipal | Municipal Government Within County |
Contact: DIRECTOR, OFFICE OF BUDGET AND MGMT.
300 S 7TH ST, STE 210, SPRINGFIELD IL 62701-1935
|
|
TOWNSHIP OF CAPITAL
GUS Population: 111,140 (2024)
ID: 207923
|
Township | Municipal Government Within County |
Contact: ASSISTANT TREASURER
200 S 9TH ST, ROOM 102, SPRINGFIELD IL 62701-1961
|
|
GUS Population: 14,639 (2024)
ID: 162621
|
Municipal | Municipal Government Within County |
Contact: CFO TREASURER
116 E MULBERRY ST, CHATHAM IL 62629-1358
|
|
TOWNSHIP OF WOODSIDE
GUS Population: 11,320 (2024)
ID: 163299
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
490 NORTH ST, SPRINGFIELD IL 62704-5860
|
|
TOWNSHIP OF CHATHAM
GUS Population: 8,528 (2024)
ID: 163287
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
109 W MULBERRY ST, CHATHAM IL 62629-1328
|
|
TOWNSHIP OF CLEAR LAKE
GUS Population: 8,277 (2024)
ID: 103083
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
4260 OLD ROUTE 36, SPRINGFIELD IL 62707-3032
|
|
TOWNSHIP OF BALL
GUS Population: 7,610 (2024)
ID: 189993
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
11910 BUBBLING WELL RD, GLENARM IL 62536-6503
|
|
TOWNSHIP OF AUBURN
GUS Population: 5,817 (2024)
ID: 103082
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
14837 KENNEDY RD, AUBURN IL 62615-9684
|
|
TOWNSHIP OF FANCY CREEK
GUS Population: 5,814 (2024)
ID: 137910
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
1715 E ANDREW RD, SPRINGFIELD IL 62707-4595
|
|
TOWNSHIP OF ROCHESTER
GUS Population: 5,670 (2024)
ID: 163295
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
540 S WALNUT ST, ROCHESTER IL 62563-9705
|
|
GUS Population: 5,489 (2024)
ID: 125334
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
3298 TERMINAL AVE, SPRINGFIELD IL 62707-4501
|
|
GUS Population: 4,634 (2024)
ID: 125062
|
Municipal | Municipal Government Within County |
Contact: VILLAGE ADMINISTRATOR
401 SAINT JOHNS DR, SHERMAN IL 62684-9780
|
|
TOWNSHIP OF GARDNER
GUS Population: 4,583 (2024)
ID: 163290
|
Township | Municipal Government Within County |
Contact: SUPERVISOR - PERCY STEPHENS
1266 N BRADFORDTON RD, SPRINGFIELD IL 62711
|
|
GUS Population: 4,453 (2024)
ID: 162619
|
Municipal | Municipal Government Within County |
Contact: OFFICE MANAGER
324 W JEFFERSON ST, AUBURN IL 62615-1424
|
|
GUS Population: 4,044 (2024)
ID: 102838
|
Municipal | Municipal Government Within County |
Contact: OFFICE MANAGER
PO BOX 618, ROCHESTER IL 62563-0618
|
|
VILLAGE OF RIVERTON
GUS Population: 3,489 (2024)
ID: 162627
|
Municipal | Municipal Government Within County |
Contact: MAYOR/PRESIDENT
1200 RIVERTON RD, RIVERTON IL 62561-8200
|
|
TOWNSHIP OF WILLIAMS
GUS Population: 3,426 (2024)
ID: 163298
|
Township | Municipal Government Within County |
Contact: CLERK
141 W MAIN ST, WILLIAMSVILLE IL 62693-9731
|
|
TOWNSHIP OF PAWNEE
GUS Population: 2,979 (2024)
ID: 103085
|
Township | Municipal Government Within County |
Contact: SUPV
PO BOX 1036, PAWNEE IL 62558-1036
|
|
VILLAGE OF PAWNEE
GUS Population: 2,698 (2024)
ID: 125060
|
Municipal | Municipal Government Within County |
Contact: TREASURER
PO BOX 560, PAWNEE IL 62558-0560
|
|
TOWNSHIP OF MECHANICSBURG
GUS Population: 2,235 (2024)
ID: 163294
|
Township | Municipal Government Within County |
Contact: SUPV
PO BOX 148, BUFFALO IL 62515-0148
|
|
GUS Population: 1,646 (2024)
ID: 102836
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
2901 LEONARD ST, SPRINGFIELD IL 62704-4861
|
|
TOWNSHIP OF NEW BERLIN
GUS Population: 1,556 (2024)
ID: 125333
|
Township | Municipal Government Within County |
Contact: ACCOUTAT
PO BOX 81, NEW BERLIN IL 62670
|
|
GUS Population: 1,551 (2024)
ID: 125061
|
Municipal | Municipal Government Within County |
Contact: VILLAGE OF SOUTHERN VIEW
3410 S 5TH ST, SOUTHERN VIEW IL 62703
|
|
TOWNSHIP OF CURRAN
GUS Population: 1,534 (2024)
ID: 163289
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
6027 WORKMAN RD, NEW BERLIN IL 62670-6755
|
|
TOWNSHIP OF CARTWRIGHT
GUS Population: 1,498 (2024)
ID: 193244
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 313, PLEASANT PLAINS IL 62677-0313
|
|
GUS Population: 1,441 (2024)
ID: 207861
|
Municipal | Municipal Government Within County |
Contact: VILLAGE PRESIDENT
141 W MAIN ST, STE 1, WILLIAMSVILLE IL 62693-9732
|
|
GUS Population: 1,409 (2024)
ID: 189948
|
Municipal | Municipal Government Within County |
Contact: ADMIN. OFFICER
2000 CHATHAM RD, SPRINGFIELD IL 62704-3204
|
|
TOWNSHIP OF DIVERNON
GUS Population: 1,406 (2024)
ID: 125331
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 261, 43 W DODDS, DIVERNON IL 62530-0261
|
|
GUS Population: 1,387 (2024)
ID: 162623
|
Municipal | Municipal Government Within County |
Contact: VILLAGE TREASURER
2377 E RESERVOIR ST, SPRINGFIELD IL 62702-4362
|
|
GUS Population: 1,359 (2024)
ID: 207860
|
Municipal | Municipal Government Within County |
Contact: PRESIDENT
PO BOX 357, NEW BERLIN IL 62670-0357
|
|
TOWNSHIP OF ILLIOPOLIS
GUS Population: 1,204 (2024)
ID: 163291
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 107, ILLIOPOLIS IL 62539-0107
|
|
GUS Population: 1,116 (2024)
ID: 204301
|
Municipal | Municipal Government Within County |
Contact: VILLAGER CLERK
50 E BROWN ST, DIVERNON IL 62530-9732
|
|
TOWNSHIP OF LOAMI
GUS Population: 1,106 (2024)
ID: 125332
|
Township | Municipal Government Within County |
Contact: CLERK
407 N MAIN ST, LOAMI IL 62661-3101
|
|
TOWNSHIP OF COTTON HILL
GUS Population: 973 (2024)
ID: 163288
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
4998 KOA RD, ROCHESTER IL 62563-6134
|
|
TOWNSHIP OF COOPER
GUS Population: 866 (2024)
ID: 125330
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
10889 CLARKSVILLE RD, ROCHESTER IL 62563
|
|
VILLAGE OF ILLIOPOLIS
GUS Population: 834 (2024)
ID: 162624
|
Municipal | Municipal Government Within County |
Contact: TREASURER
PO BOX 299, ILLIOPOLIS IL 62539-0299
|
|
GUS Population: 813 (2024)
ID: 162626
|
Municipal | Municipal Government Within County |
Contact: VILLAGE PRESIDENT
PO BOX 177, PLEASANT PLAINS IL 62677-0177
|
|
VILLAGE OF LOAMI
GUS Population: 797 (2024)
ID: 137892
|
Municipal | Municipal Government Within County |
Contact: CLERK
PO BOX 226, LOAMI IL 62661-0226
|
|
VILLAGE OF SPAULDING
GUS Population: 790 (2024)
ID: 162628
|
Municipal | Municipal Government Within County |
Contact: ATTORNEY
109 S 7TH ST, SPRINGFIELD IL 62701-1302
|
|
VILLAGE OF MECHANICSBURG
GUS Population: 662 (2024)
ID: 162625
|
Municipal | Municipal Government Within County |
Contact: TREASURER
204 W MAIN ST, PO BOX 200, MECHANICSBURG IL 62545-0200
|
|
VILLAGE OF THAYER
GUS Population: 616 (2024)
ID: 162630
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 139, THAYER IL 62689-0139
|
|
TOWNSHIP OF ISLAND GROVE
GUS Population: 564 (2024)
ID: 163292
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
12382 TEBBE RD, NEW BERLIN IL 62670-4504
|
|
VILLAGE OF DAWSON
GUS Population: 511 (2024)
ID: 102835
|
Municipal | Municipal Government Within County |
Contact: CLERK
PO BOX 167, DAWSON IL 62520-0167
|
|
VILLAGE OF BUFFALO
GUS Population: 436 (2024)
ID: 125059
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 107, BUFFALO IL 62515
|
|
TOWNSHIP OF MAXWELL
GUS Population: 210 (2024)
ID: 163293
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
8562 STALEY ROAD, LOAMI IL 62661
|
|
GUS Population: 210 (2024)
ID: 217020
|
Municipal | Municipal Government Within County |
Contact: TREASURER
6262 MOFFET ST, NEW BERLIN IL 62670-6677
|
|
TOWNSHIP OF LANESVILLE
GUS Population: 208 (2024)
ID: 103084
|
Township | Municipal Government Within County |
Contact: CLERK
16080 OLD ROUTE 36, BUFFALO IL 62515-7208
|
|
TOWNSHIP OF BUFFALO HART
GUS Population: 171 (2024)
ID: 163286
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
7238 CORNLAND RD, BUFFALO IL 62515-7134
|
|
TOWNSHIP OF TALKINGTON
GUS Population: 161 (2024)
ID: 163297
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
18627 S DUEWER RD, WAVERLY IL 62692-8519
|