Washington County, Illinois
Washington 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 |
|---|---|---|---|
|
COUNTY OF WASHINGTON
GUS Population: 13,535 (2024)
ID: 162166
|
County | Official County Government |
Contact: COUNTY CLERK
101 E SAINT LOUIS ST, NASHVILLE IL 62263-1100
|
|
TOWNSHIP OF NASHVILLE
GUS Population: 3,386 (2024)
ID: 163364
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
545 E ADAMS ST, NASHVILLE IL 62263-1767
|
|
CITY OF NASHVILLE
GUS Population: 3,006 (2024)
ID: 185043
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
190 N EAST COURT ST, NASHVILLE IL 62263-1112
|
|
TOWNSHIP OF OKAWVILLE
GUS Population: 1,931 (2024)
ID: 163365
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 429, OKAWVILLE IL 62271-0429
|
|
VILLAGE OF OKAWVILLE
GUS Population: 1,347 (2024)
ID: 162672
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 483, OKAWVILLE IL 62271-0483
|
|
TOWNSHIP OF IRVINGTON
GUS Population: 1,149 (2024)
ID: 125355
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 415, IRVINGTON IL 62848-0415
|
|
TOWNSHIP OF HOYLETON
GUS Population: 1,025 (2024)
ID: 163362
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 201, HOYLETON IL 62803
|
|
TOWNSHIP OF ASHLEY
GUS Population: 742 (2024)
ID: 163359
|
Township | Municipal Government Within County |
Contact: ASHLEY CITY HALL
474 WEST MAIN, ASHLEY IL 62808
|
|
TOWNSHIP OF DU BOIS
GUS Population: 643 (2024)
ID: 163361
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
24500 POSEN RD, DU BOIS IL 62831-1200
|
|
TOWNSHIP OF LIVELY GROVE
GUS Population: 569 (2024)
ID: 163363
|
Township | Municipal Government Within County |
Contact: TOWNSHIP SUPERVISOR
4409 COOLIDGE RD, OAKDALE IL 62268-1809
|
|
VILLAGE OF IRVINGTON
GUS Population: 566 (2024)
ID: 162671
|
Municipal | Municipal Government Within County |
Contact: VILLAGE PRESIDENT
PO BOX 515, IRVINGTON IL 62848-0515
|
|
TOWNSHIP OF BEAUCOUP
GUS Population: 566 (2024)
ID: 163360
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
5 RUTH ANN DR, NASHVILLE IL 62263-5049
|
|
TOWNSHIP OF OAKDALE
GUS Population: 548 (2024)
ID: 125356
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
183 S AYERS ST, OAKDALE IL 62268-2520
|
|
TOWNSHIP OF PILOT KNOB
GUS Population: 513 (2024)
ID: 163366
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
3127 BLACK DIAMOND RD, NASHVILLE IL 62263-5809
|
|
VILLAGE OF HOYLETON
GUS Population: 505 (2024)
ID: 162670
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
66 N. PARK, HOYLETON IL 62803
|
|
TOWNSHIP OF JOHANNISBURG
GUS Population: 504 (2024)
ID: 103107
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
2401 OLD ST LOUIS RD, VENEDY IL 62214
|
|
TOWNSHIP OF PLUM HILL
GUS Population: 489 (2024)
ID: 201644
|
Township | Municipal Government Within County |
Contact: TWP SUPERVISOR
9491 PLUM HILL CHURCH RD, NASHVILLE IL 62263-3725
|
|
CITY OF ASHLEY
GUS Population: 447 (2024)
ID: 102865
|
Municipal | Municipal Government Within County |
Contact: CONTROLLER
PO BOX 341, ASHLEY IL 62808-0341
|
|
TOWNSHIP OF BOLO
GUS Population: 396 (2024)
ID: 185108
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
19914 POSEN RD, NASHVILLE IL 62263-6124
|
|
TOWNSHIP OF VENEDY
GUS Population: 389 (2024)
ID: 163367
|
Township | Municipal Government Within County |
Contact: SUPERVISOR VEREDY TOWNSHIP
225 E ELM ST, VENEDY IL 62214-1255
|
|
TOWNSHIP OF COVINGTON
GUS Population: 374 (2024)
ID: 125354
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
13035 EAGLE RD, NASHVILLE IL 62263-2801
|
|
TOWNSHIP OF RICHVIEW
GUS Population: 311 (2024)
ID: 125357
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
10490 US HWY 51, RICHVIEW IL 62877
|
|
VILLAGE OF ADDIEVILLE
GUS Population: 253 (2024)
ID: 162669
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 52, ADDIEVILLE IL 62214-0052
|
|
VILLAGE OF RICHVIEW
GUS Population: 231 (2024)
ID: 125078
|
Municipal | Municipal Government Within County |
Contact: VILLAGE PRESIDENT
PO BOX 86, RICHVIEW IL 62877-0086
|
|
VILLAGE OF OAKDALE
GUS Population: 197 (2024)
ID: 162675
|
Municipal | Municipal Government Within County |
Contact: TREASURER
366 W FRONT ST, OAKDALE IL 62268-2514
|
|
VILLAGE OF RADOM
GUS Population: 181 (2024)
ID: 162673
|
Municipal | Municipal Government Within County |
Contact: BOOKEEPER TREASURER
PO BOX 96, RADOM IL 62876-0096
|
|
VILLAGE OF DU BOIS
GUS Population: 179 (2024)
ID: 125076
|
Municipal | Municipal Government Within County |
Contact: TREASURER
PO BOX 116, DU BOIS IL 62831-0116
|
|
VILLAGE OF NEW MINDEN
GUS Population: 163 (2024)
ID: 125077
|
Municipal | Municipal Government Within County |
Contact: PRESIDENT
82 E FRONT ST, NASHVILLE IL 62263-2334
|
|
VILLAGE OF VENEDY
GUS Population: 123 (2024)
ID: 162674
|
Municipal | Municipal Government Within County |
Contact: CLERK
214 S ELKHORN RD, VENEDY IL 62214-1240
|