Warren County, Ohio
Warren 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: 256,059 (2024)
ID: 194520
|
County | Official County Government |
Contact: DIRECTOR OF FINANCIAL OPERATIONS
WARREN COUNTY AUDITOR, 406 JUSTICE DR, LEBANON OH 45036
|
|
GUS Population: 43,617 (2024)
ID: 111024
|
Township | Municipal Government Within County |
Contact: ADMINISTRATOR
4900 PARKWAY DR, STE 150, MASON OH 45040-9002
|
|
GUS Population: 38,225 (2024)
ID: 173274
|
Township | Municipal Government Within County |
Contact: TOWNSHIP ADMINISTRATOR
7593 BUNNELL HILL RD, SPRINGBORO OH 45066
|
|
GUS Population: 36,046 (2024)
ID: 209101
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
6000 S MASON MONTGOMERY RD, MASON OH 45040-1699
|
|
TOWNSHIP OF FRANKLIN
GUS Population: 33,007 (2024)
ID: 132776
|
Township | Municipal Government Within County |
Contact: ADMINISTRATOR
PO BOX 364, FRANKLIN OH 45005-0364
|
|
GUS Population: 32,981 (2024)
ID: 173275
|
Township | Municipal Government Within County |
Contact: FISCAL OFFICER
7780 S SR 48, HAMILTON TOWNSHIP OH 45039-0699
|
|
GUS Population: 21,995 (2024)
ID: 132540
|
Municipal | Municipal Government Within County |
Contact: CITY AUDITOR
50 S BROADWAY ST, 1, LEBANON OH 45036-1745
|
|
GUS Population: 19,646 (2024)
ID: 205144
|
Municipal | Municipal Government Within County |
Contact: CLERK OF COUNCIL
320 W CENTRAL AVE, SPRINGBORO OH 45066-1198
|
|
GUS Population: 18,015 (2024)
ID: 173278
|
Township | Municipal Government Within County |
Contact: FISCAL OFFICER
670 N STATE ROUTE 123, LEBANON OH 45036-7016
|
|
GUS Population: 11,758 (2024)
ID: 172658
|
Municipal | Municipal Government Within County |
Contact: CHIEF BUILDING OFFICIAL
1 BENJAMIN FRANKLIN WAY, FRANKLIN OH 45005-2478
|
|
GUS Population: 9,296 (2024)
ID: 173279
|
Township | Municipal Government Within County |
Contact: ADMINISTRATOR
PO BOX 89, WAYNESVILLE OH 45068-0089
|
|
GUS Population: 6,923 (2024)
ID: 172660
|
Municipal | Municipal Government Within County |
Contact: VILLAGE ADMINISTRATOR
99 N HIGH ST, SOUTH LEBANON OH 45065-1212
|
|
GUS Population: 6,723 (2024)
ID: 111025
|
Township | Municipal Government Within County |
Contact: UNION TOWNSHIP FISCAL OFFICER
285 E PIKE ST, SOUTH LEBANON OH 45065-1238
|
|
GUS Population: 5,855 (2024)
ID: 172662
|
Municipal | Municipal Government Within County |
Contact: MANAGER
760 W CENTRAL AVE, CARLISLE OH 45005
|
|
GUS Population: 5,599 (2024)
ID: 173277
|
Township | Municipal Government Within County |
Contact: FISCAL OFFICER
PO BOX 171, MORROW OH 45152-0171
|
|
GUS Population: 5,285 (2024)
ID: 173276
|
Township | Municipal Government Within County |
Contact: PRESIDENT
9120 MORROW ROSSBURG RD, PLEASANT PLAIN OH 45162-7500
|
|
GUS Population: 2,962 (2024)
ID: 132778
|
Township | Municipal Government Within County |
Contact: FISCAL OFFICER
9277 ARROWCREEK DR, OREGONIA OH 45054-9471
|
|
GUS Population: 2,862 (2024)
ID: 172661
|
Municipal | Municipal Government Within County |
Contact: FINANCE DIRECTOR
1400 LYTLE RD, WAYNESVILLE OH 45068-8482
|
|
VILLAGE OF MORROW
GUS Population: 2,199 (2024)
ID: 202341
|
Municipal | Municipal Government Within County |
Contact: MAYOR
150 E PIKE ST, MORROW OH 45152-1216
|
|
GUS Population: 1,517 (2024)
ID: 193890
|
Municipal | Municipal Government Within County |
Contact: FISCAL OFFICER
8188 S STATE ROUTE 48, MAINEVILLE OH 45039
|
|
TOWNSHIP OF MASSIE
GUS Population: 1,258 (2024)
ID: 132777
|
Township | Municipal Government Within County |
Contact: TRUSTEE
10 N HARVEYSBURG RD, PO BOX 91, HARVEYSBURG OH 45032-0091
|
|
GUS Population: 579 (2024)
ID: 110819
|
Municipal | Municipal Government Within County |
Contact: VILLAGE FISCAL OFFICER
PO BOX 189, HARVEYSBURG OH 45032-0189
|
|
VILLAGE OF CORWIN
GUS Population: 525 (2024)
ID: 132539
|
Municipal | Municipal Government Within County |
Contact: CLERK TREASURER
PO BOX 684, WAYNESVILLE OH 45068-0684
|
|
VILLAGE OF BUTLERVILLE
GUS Population: 156 (2024)
ID: 172657
|
Municipal | Municipal Government Within County |
Contact: CLERK TREASURER
PO BOX 85, PLEASANT PLAIN OH 45162-0085
|
|
VILLAGE OF PLEASANT PLAIN
GUS Population: 139 (2024)
ID: 172659
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 3, PLEASANT PLAIN OH 45162
|