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Sioux County

Sioux County — County in the United States.

County

Population

1,188

Estimate for July 1, 2025

Population
YearPopulation
20201,146
20211,155
20221,166
20231,200
20241,205
20251,188

US Census Bureau, Population Estimates Program, Vintage 2025

Election administration

Election administration
Measure202420222020
Precincts222
Polling places33—
Election Day polling places222
Early-voting polling places111
Poll workers776

US Election Assistance Commission, Election Administration and Voting Survey (EAVS)