Mason County, Illinois
Mason 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: 12,543 (2024)
ID: 194542
|
County | Official County Government |
Contact: TREASURER
COUNTY BUILDING, HAVANA IL 62644
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|
TOWNSHIP OF HAVANA
GUS Population: 4,206 (2024)
ID: 125291
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
549 S SCHRADER AVE, HAVANA IL 62644-1769
|
|
GUS Population: 2,826 (2024)
ID: 125015
|
Municipal | Municipal Government Within County |
Contact: TREASURER
227 W MAIN ST, HAVANA IL 62644-1137
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TOWNSHIP OF MASON CITY
GUS Population: 2,231 (2024)
ID: 125292
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 8, MASON CITY IL 62664-0008
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TOWNSHIP OF MANITO
GUS Population: 2,152 (2024)
ID: 103051
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 142, MANITO IL 61546-0142
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CITY OF MASON CITY
GUS Population: 1,982 (2024)
ID: 162533
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
145 S MAIN ST, MASON CITY IL 62664-1460
|
|
GUS Population: 1,488 (2024)
ID: 162532
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 618, MANITO IL 61546-0618
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TOWNSHIP OF BATH
GUS Population: 710 (2024)
ID: 189988
|
Township | Municipal Government Within County |
Contact: SUPERVISER
11794 E CR 400N, CHANDLERVILLE IL 62627-8519
|
|
TOWNSHIP OF QUIVER
GUS Population: 691 (2024)
ID: 163191
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
22517 ECR 1800 N, TOPEKA IL 61567
|
|
TOWNSHIP OF SHERMAN
GUS Population: 468 (2024)
ID: 163193
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 57, EASTON IL 62633-0057
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TOWNSHIP OF KILBOURNE
GUS Population: 454 (2024)
ID: 163188
|
Township | Municipal Government Within County |
Contact: ATTORNEY
PO BOX 191, KILBOURNE IL 62655-0191
|
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TOWNSHIP OF FOREST CITY
GUS Population: 451 (2024)
ID: 163187
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
30547 COUNTY ROAD 1900 N, FOREST CITY IL 61532-9753
|
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TOWNSHIP OF ALLENS GROVE
GUS Population: 446 (2024)
ID: 103050
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
PO BOX 73, SAN JOSE IL 62682-0073
|
|
VILLAGE OF EASTON
GUS Population: 302 (2024)
ID: 162530
|
Municipal | Municipal Government Within County |
Contact: VILLAGE BOARD PRESIDENT
PO BOX 177, EASTON IL 62633-0177
|
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VILLAGE OF BATH
GUS Population: 265 (2024)
ID: 102787
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 140, BATH IL 62617-0140
|
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VILLAGE OF KILBOURNE
GUS Population: 259 (2024)
ID: 212000
|
Municipal | Municipal Government Within County |
Contact: VILLAGE CLERK
PO BOX 223, KILBOURNE IL 62655-0223
|
|
TOWNSHIP OF LYNCHBURG
GUS Population: 223 (2024)
ID: 163189
|
Township | Municipal Government Within County |
Contact: SECRETARY
3977 N CR 800E, BATH IL 62617-7147
|
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TOWNSHIP OF SALT CREEK
GUS Population: 212 (2024)
ID: 163192
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
30360 E CR 1000N, MASON CITY IL 62664
|
|
VILLAGE OF FOREST CITY
GUS Population: 210 (2024)
ID: 162531
|
Municipal | Municipal Government Within County |
Contact: CLERK
PO BOX 5, FOREST CITY IL 61532-0005
|
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TOWNSHIP OF PENNSYLVANIA
GUS Population: 150 (2024)
ID: 163190
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
28435 US HIGHWAY 136, FOREST CITY IL 61532-9648
|
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TOWNSHIP OF CRANE CREEK
GUS Population: 149 (2024)
ID: 163186
|
Township | Municipal Government Within County |
Contact: SUPERVISOR
24428 E HERGET RD, EASTON IL 62633
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TOWN OF TOPEKA
GUS Population: 56 (2024)
ID: 102788
|
Municipal | Municipal Government Within County |
Contact: CLERK
PO BOX 227, TOPEKA IL 61567-0227
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