Johnson County, Illinois
Johnson 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 JOHNSON
GUS Population: 13,320 (2024)
ID: 124844
|
County | Official County Government |
Contact: JOHNSON COUNTY TREASURER
PO BOX 38, VIENNA IL 62995-0038
|
|
CITY OF VIENNA
GUS Population: 1,350 (2024)
ID: 102713
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 1442, VIENNA IL 62995-1442
|
|
VILLAGE OF GOREVILLE
GUS Population: 1,054 (2024)
ID: 124957
|
Municipal | Municipal Government Within County |
Contact: FIN. OFFICER/TREAS.
PO BOX 16 105 W. COLLINS, GOREVILLE IL 62939
|
|
VILLAGE OF CYPRESS
GUS Population: 219 (2024)
ID: 162400
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 140, CYPRESS IL 62923-0140
|
|
VILLAGE OF BUNCOMBE
GUS Population: 207 (2024)
ID: 102712
|
Municipal | Municipal Government Within County |
Contact: CLERK/TREAS.
PO BOX 25, BUNCOMBE IL 62912-0025
|
|
VILLAGE OF NEW BURNSIDE
GUS Population: 152 (2024)
ID: 162401
|
Municipal | Municipal Government Within County |
Contact: CLERK/MAYOR/TREASURER
PO BOX 178, NEW BURNSIDE IL 62967-0178
|
|
VILLAGE OF BELKNAP
GUS Population: 86 (2024)
ID: 124956
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 143, BELKNAP IL 62908-0143
|
|
VILLAGE OF SIMPSON
GUS Population: 44 (2024)
ID: 162402
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
VILLAGE HALL, SIMPSON IL 62985
|