Sioux County, Iowa
Sioux 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: 36,554 (2024)
ID: 164272
|
County | Official County Government |
Contact: AUDITOR, SIOUX COUNTY
PO BOX 18, ORANGE CITY IA 51041-0018
|
|
GUS Population: 8,675 (2024)
ID: 185412
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
335 1ST AVE NW, SIOUX CENTER IA 51250-1814
|
|
GUS Population: 6,547 (2024)
ID: 164568
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 406, ORANGE CITY IA 51041-0406
|
|
GUS Population: 4,024 (2024)
ID: 190210
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINISTRATOR
PO BOX 100, ROCK VALLEY IA 51247-0100
|
|
GUS Population: 2,630 (2024)
ID: 126709
|
Municipal | Municipal Government Within County |
Contact: FINANCE DIRECTOR
1150 CENTRAL AVE, HAWARDEN IA 51023-1846
|
|
CITY OF HULL
GUS Population: 2,459 (2024)
ID: 164565
|
Municipal | Municipal Government Within County |
Contact: ADMINISTRATOR
PO BOX 816, HULL IA 51239-0816
|
|
CITY OF ALTON
GUS Population: 1,248 (2024)
ID: 104475
|
Municipal | Municipal Government Within County |
Contact: CITY ADMININSTRATOR
PO BOX 910, ALTON IA 51003-0910
|
|
CITY OF HOSPERS
GUS Population: 703 (2024)
ID: 208065
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 248, HOSPERS IA 51238-0248
|
|
GUS Population: 694 (2024)
ID: 126708
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINISTRATOR
PO BOX 160, BOYDEN IA 51234-0160
|
|
CITY OF IRETON
GUS Population: 571 (2024)
ID: 164566
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINISTRATOR
PO BOX 130, 502 4TH ST, IRETON IA 51027
|
|
CITY OF GRANVILLE
GUS Population: 302 (2024)
ID: 138239
|
Municipal | Municipal Government Within County |
Contact: MAYOR
740 BROAD ST, GRANVILLE IA 51022-5017
|
|
CITY OF MAURICE
GUS Population: 271 (2024)
ID: 164567
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 68, MAURICE IA 51036-0068
|
|
CITY OF MATLOCK
GUS Population: 74 (2024)
ID: 126710
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
PO BOX 37, MATLOCK IA 51244
|
|
CITY OF CHATSWORTH
GUS Population: 72 (2024)
ID: 164564
|
Municipal | Municipal Government Within County |
Contact: MAYOR
320 2ND ST, CHATSWORTH IA 51011-2312
|