Sioux County Population 2017

Sioux County's estimated population is 34,898 with a growth rate of 0.42% in the past year according to the most recent United States census data. Sioux County is the 20th largest county in Iowa.

Year Population Growth Growth Rate
201634,8981460.42%
201534,7521300.38%
201434,6221280.37%
201334,4941550.45%
201234,3393090.91%
201134,0302970.88%
201033,7333,83012.81%
199029,903-910-2.95%
198030,8132,81710.06%
197027,9961,6216.15%
196026,375-6-0.02%
195026,381-828-3.04%
194027,2094031.50%
193026,8063481.32%
192026,4581,2104.79%
191025,2481,9118.19%
190023,3374,96727.04%
189018,37012,944238.56%
18805,4264,850842.01%
18705765665660.00%
1860100.00%

Sioux County Population Growth

Population Data via

Sioux County Race Data

Race Population Percentage
White33,66496.46%
Asian3430.98%
Black or African American2790.80%
Two or More Races2630.75%
American Indian and Alaska Native1850.53%
Native Hawaiian and Other Pacific Islander180.05%

Sioux County Population Pyramid

0k1k1k2kSioux County Male Population0k1k1k2kSioux County Female Population

Population of Cities in Sioux County

City 2010 Census 2016 Estimated Growth Growth Rate
Sioux Center704775014546.44%
Orange City606061791191.96%
Rock Valley339537303359.87%
Hawarden25462527-19-0.75%
Hull21752266914.18%
Alton12241271473.84%
Hospers698709111.58%
Boyden701695-6-0.86%
Ireton612601-11-1.80%
Granville31231530.96%
Maurice27527831.09%
Matlock878700.00%
Chatsworth797900.00%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990