Whiteside County, Illinois
Whiteside 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: 54,657 (2024)
ID: 162168
|
County | Official County Government |
Contact: COUNTY ADMINISTRATOR
200 E KNOX ST, MORRISON IL 61270-2819
|
|
GUS Population: 16,985 (2024)
ID: 125367
|
Township | Municipal Government Within County |
Contact: TOWNSHIP SUPERVISOR
108 4TH AVE, STE 2, STERLING IL 61081-3902
|
|
GUS Population: 14,535 (2024)
ID: 125084
|
Municipal | Municipal Government Within County |
Contact: MANAGER
212 3RD AVE, STERLING IL 61081-3998
|
|
TOWNSHIP OF COLOMA
GUS Population: 10,384 (2024)
ID: 207926
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
1200 PROPHETSTOWN RD, ROCK FALLS IL 61071-1064
|
|
GUS Population: 8,614 (2024)
ID: 201635
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
603 W 10TH ST, ROCK FALLS IL 61071-2854
|
|
TOWNSHIP OF MOUNT PLEASANT
GUS Population: 4,689 (2024)
ID: 163387
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
210 W MORRIS ST, MORRISON IL 61270-2338
|
|
GUS Population: 4,277 (2024)
ID: 103114
|
Township | Municipal Government Within County |
Contact: FULTON TOWNSHIP
408 11TH AVE, FULTON IL 61252-1255
|
|
GUS Population: 3,988 (2024)
ID: 193210
|
Municipal | Municipal Government Within County |
Contact: ADMINISTRATOR
200 W MAIN ST, MORRISON IL 61270-2400
|
|
GUS Population: 3,581 (2024)
ID: 125083
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINSTRATOR
415 11TH AVE, FULTON IL 61252-1727
|
|
TOWNSHIP OF PROPHETSTOWN
GUS Population: 2,448 (2024)
ID: 103116
|
Township | Municipal Government Within County |
Contact: CLERK
605 WASHINGTON ST, PROPHETSTOWN IL 61277-1439
|
|
TOWNSHIP OF MONTMORENCY
GUS Population: 2,411 (2024)
ID: 125366
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
30005 STAR RD, ROCK FALLS IL 61071-9456
|
|
TOWNSHIP OF HOPKINS
GUS Population: 1,982 (2024)
ID: 125365
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 16, GALT IL 61037-0016
|
|
CITY OF PROPHETSTOWN
GUS Population: 1,906 (2024)
ID: 162686
|
Municipal | Municipal Government Within County |
Contact: SECRETARY
339 WASHINGTON ST, PROPHETSTOWN IL 61277
|
|
TOWNSHIP OF ERIE
GUS Population: 1,853 (2024)
ID: 163383
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 247, ERIE IL 61250-0247
|
|
GUS Population: 1,491 (2024)
ID: 102869
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 37, ERIE IL 61250-0037
|
|
TOWNSHIP OF UNION GROVE
GUS Population: 1,184 (2024)
ID: 163391
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
13653 SHELLY DR, MORRISON IL 61270-9680
|
|
TOWNSHIP OF ALBANY
GUS Population: 1,006 (2024)
ID: 125364
|
Township | Municipal Government Within County |
Contact: TWP SUPERVISOR
PO BOX 312, ALBANY IL 61230-0312
|
|
TOWNSHIP OF TAMPICO
GUS Population: 975 (2024)
ID: 163390
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
23477 FARGO RD, TAMPICO IL 61283-9715
|
|
TOWNSHIP OF GARDEN PLAIN
GUS Population: 974 (2024)
ID: 189997
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
15585 SAND RD, FULTON IL 61252-9760
|
|
TOWNSHIP OF LYNDON
GUS Population: 905 (2024)
ID: 185111
|
Township | Municipal Government Within County |
Contact: SUPERVISOR LYNDON TOWNSHIP
18499 MOLINE RD, LYNDON IL 61261-9691
|
|
VILLAGE OF ALBANY
GUS Population: 851 (2024)
ID: 162685
|
Municipal | Municipal Government Within County |
Contact: TREASURER
PO BOX 356, ALBANY IL 61230-0356
|
|
TOWNSHIP OF JORDAN
GUS Population: 841 (2024)
ID: 207927
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
29752 PENROSE RD, STERLING IL 61081
|
|
GUS Population: 701 (2024)
ID: 163385
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
22725 PILGRIM RD, COLETA IL 61081
|
|
VILLAGE OF TAMPICO
GUS Population: 675 (2024)
ID: 162687
|
Municipal | Municipal Government Within County |
Contact: CLERK
PO BOX219, 202 W 2ND ST, TAMPICO IL 61283
|
|
TOWNSHIP OF FENTON
GUS Population: 558 (2024)
ID: 163384
|
Township | Municipal Government Within County |
Contact: CLERK
11151 WILMOT RD, FENTON IL 61251-9662
|
|
TOWNSHIP OF USTICK
GUS Population: 534 (2024)
ID: 163392
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
22146 SMALTZ RD, FULTON IL 61252-9713
|
|
VILLAGE OF LYNDON
GUS Population: 529 (2024)
ID: 207870
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 217, LYNDON IL 61261-0217
|
|
TOWNSHIP OF PORTLAND
GUS Population: 427 (2024)
ID: 163389
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
11580 VANDAMME RD, PROPHETSTOWN IL 61277-9723
|
|
TOWNSHIP OF NEWTON
GUS Population: 423 (2024)
ID: 163388
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
4200 STERN RD, ERIE IL 61250-0247
|
|
TOWNSHIP OF CLYDE
GUS Population: 396 (2024)
ID: 137914
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
20299 PIGEON RD, MORRISON IL 61270-9773
|
|
TOWNSHIP OF HUME
GUS Population: 355 (2024)
ID: 103115
|
Township | Municipal Government Within County |
Contact: CLERK
24376 PROPHET ROAD, ROCK FALLS IL 61071-0000
|
|
TOWNSHIP OF HAHNAMAN
GUS Population: 349 (2024)
ID: 163386
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
28339 HURD RD, DEER GROVE IL 61243-9722
|
|
VILLAGE OF COLETA
GUS Population: 161 (2024)
ID: 125082
|
Municipal | Municipal Government Within County |
Contact: TREASURER
311 S MAIN, COLETA IL 61081-5100
|
|
VILLAGE OF DEER GROVE
GUS Population: 39 (2024)
ID: 207869
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 8, DEER GROVE IL 61243-0008
|