# Sioux County

> English word · Proper noun

## Definitions
1. One of 99 counties in Iowa, United States. County seat: Orange City.
2. One of 93 counties in Nebraska, United States. County seat: Harrison.
3. One of 53 counties in North Dakota, United States. County seat: Fort Yates.

## Etymology
All counties are named after the Sioux people.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sioux-county