Carroll County, Illinois
Carroll 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: 15,444 (2024)
ID: 124837
|
County | Official County Government |
Contact: TREASURER
PO BOX 198, MOUNT CARROLL IL 61053-0198
|
|
TOWNSHIP OF SAVANNA
GUS Population: 3,340 (2024)
ID: 185057
|
Township | Municipal Government Within County |
Contact: TOWNSHIP SUPERVISOR
44 VAN BUREN ST, SAVANNA IL 61074-1341
|
|
TOWNSHIP OF YORK
GUS Population: 2,747 (2024)
ID: 125114
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
801 LUCAS AVE, THOMSON IL 61285
|
|
GUS Population: 2,713 (2024)
ID: 162198
|
Municipal | Municipal Government Within County |
Contact: MAYOR
333 CHICAGO AVENUE, SAVANNA IL 61074
|
|
TOWNSHIP OF ROCK CREEK-LIMA
GUS Population: 1,937 (2024)
ID: 162756
|
Township | Municipal Government Within County |
Contact: CLERK
PO BOX 153, LANARK IL 61046
|
|
TOWNSHIP OF MOUNT CARROLL
GUS Population: 1,910 (2024)
ID: 162755
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
1005 S CLAY ST, MOUNT CARROLL IL 61053-9774
|
|
VILLAGE OF THOMSON
GUS Population: 1,595 (2024)
ID: 102576
|
Municipal | Municipal Government Within County |
Contact: CLERK
PO BOX 244, THOMSON IL 61285-0244
|
|
TOWNSHIP OF CHERRY GROVE-SHANNON
GUS Population: 1,575 (2024)
ID: 125112
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
31457 STRAW SCHOOL RD, SHANNON IL 61078-9207
|
|
CITY OF LANARK
GUS Population: 1,463 (2024)
ID: 102573
|
Municipal | Municipal Government Within County |
Contact: CLERK
PO BOX 6, 111A S BROAD ST, LANARK IL 61046-0006
|
|
GUS Population: 1,433 (2024)
ID: 124867
|
Municipal | Municipal Government Within County |
Contact: MAYOR
302 N MAIN ST, MOUNT CARROLL IL 61053-1024
|
|
TOWNSHIP OF WYSOX
GUS Population: 1,301 (2024)
ID: 162759
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 73, MILLEDGEVILLE IL 61051-0073
|
|
VILLAGE OF MILLEDGEVILLE
GUS Population: 992 (2024)
ID: 162197
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK OF MILLEDGEVILLE
PO BOX 639, MILLEDGEVILLE IL 61051-0639
|
|
VILLAGE OF SHANNON
GUS Population: 841 (2024)
ID: 207771
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 514, SHANNON IL 61078-0514
|
|
TOWNSHIP OF FREEDOM
GUS Population: 773 (2024)
ID: 162754
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
19949 TOWNHALL RD, LANARK IL 61046-8822
|
|
TOWNSHIP OF FAIRHAVEN
GUS Population: 755 (2024)
ID: 125113
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 158, CHADWICK IL 61014-0158
|
|
GUS Population: 476 (2024)
ID: 162196
|
Municipal | Municipal Government Within County |
Contact: TREASURER
225 N MAIN ST, CHADWICK IL 61014-9417
|
|
TOWNSHIP OF SALEM
GUS Population: 337 (2024)
ID: 189957
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
22615 TELEGRAPH RD, CHADWICK IL 61014-9301
|
|
TOWNSHIP OF WASHINGTON
GUS Population: 313 (2024)
ID: 162758
|
Township | Municipal Government Within County |
Contact: TOWNSHIP SUPERVISOR
18280 IL ROUTE 84, SAVANNA IL 61074
|
|
TOWNSHIP OF WOODLAND
GUS Population: 270 (2024)
ID: 207880
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
18525 ELIZABETH RD, MOUNT CARROLL IL 61053-9077
|
|
TOWNSHIP OF ELKHORN GROVE
GUS Population: 186 (2024)
ID: 162753
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
1071 GRANDVIEW RD, MILLEDGEVILLE IL 61051-9383
|