Jasper County, Iowa
Jasper 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: 38,107 (2024)
ID: 164255
|
County | Official County Government |
Contact: CHAIRMAN
101 1ST ST N, STE 203, NEWTON IA 50208-3227
|
|
GUS Population: 15,709 (2024)
ID: 164445
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 399, NEWTON IA 50208-0399
|
|
CITY OF COLFAX
GUS Population: 2,305 (2024)
ID: 104410
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
19 E HOWARD ST, COLFAX IA 50054-1020
|
|
GUS Population: 2,021 (2024)
ID: 164444
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 370, MONROE IA 50170-0370
|
|
GUS Population: 1,722 (2024)
ID: 164446
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINISTRATOR
PO BOX 607, PRAIRIE CITY IA 50228-0607
|
|
GUS Population: 983 (2024)
ID: 164442
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 415, BAXTER IA 50028-0415
|
|
GUS Population: 891 (2024)
ID: 164447
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK/TREASURER
PO BOX 247, SULLY IA 50251-0247
|
|
CITY OF KELLOGG
GUS Population: 597 (2024)
ID: 126645
|
Municipal | Municipal Government Within County |
Contact: CLERK TREAS
PO BOX 45, KELLOGG IA 50135-0045
|
|
CITY OF LYNNVILLE
GUS Population: 382 (2024)
ID: 164443
|
Municipal | Municipal Government Within County |
Contact: CLERK
PO BOX 115, LYNNVILLE IA 50153-0115
|
|
CITY OF MINGO
GUS Population: 314 (2024)
ID: 126646
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 153, MINGO IA 50168-0153
|
|
GUS Population: 178 (2024)
ID: 185393
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
39 FORE SEASONS DR, GRINNELL IA 50112-3007
|
|
CITY OF LAMBS GROVE
GUS Population: 174 (2024)
ID: 104411
|
Municipal | Municipal Government Within County |
Contact: MAYOR
116 PIONEER DR, NEWTON IA 50208
|
|
CITY OF REASNOR
GUS Population: 157 (2024)
ID: 126647
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 68, REASNOR IA 50232-0068
|
|
CITY OF VALERIA
GUS Population: 41 (2024)
ID: 164448
|
Municipal | Municipal Government Within County |
Contact: MAYOR
3189 MAIN ST, COLFAX IA 50054
|