# Idaho County

> English word · Proper noun

## Definitions
1. One of 44 counties in Idaho, United States. County seat: Grangeville.

## Etymology
Named after the "Idaho", a Columbia River steamer launched in 1860, the name predating the formation of the Idaho Territory in 1863; the county was created in 1864.

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