Oneida County, Idaho
county in Idaho, United States
Oneida County is a county located in the U.S. state of Idaho. As of the 2020 Census the county had a population of 4,564. The county seat and largest city is Malad City. Most of the county's population lives in Malad City and the surrounding Malad Valley.
History
The county is named for Oneida Lake, New York, the area from which most of the early settlers had emigrated.
Oneida County was organized on January 22, 1864, with its county seat established at Soda Springs in present-day Caribou County. The county seat was moved to Malad City in 1866 because of its population growth and location on the freight road and stagecoach line between Corinne, Utah, and the mines in Butte, Montana.
Early in its lengthy history, Oneida County had the distinction of being Idaho's largest county by both area and population. Its initial size was 32,708 mi2 making it the third largest of the 17 counties created by the first legislature of Idaho Territory in 1863 and early 1864. When the US Congress created Montana Territory on May 26, 1864, it also transferred a portion of Oneida County over to Dakota Territory.
“Oneida County, Idaho” enters the record as county in Idaho, United States. Crown Archives preserves that source wording while asking what Oneida, County and Idaho can confirm, complicate or overturn.
Why this record matters
“Oneida County, Idaho” is worth following because a concise public description often conceals a longer documentary argument. Here, Oneida, County and Idaho provides the most credible route into that argument.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q491331. VIAF identifies the subject as 155955478. The Library of Congress control number is n82009729. Authority coordinates are 42.210, -112.520. 5 of 5 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020, 1864, 1866 and 1863.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Oneida County, Idaho”, its source revision and the description used here.
- Expand the search: follow Oneida County, Idaho primary sources, Oneida County, Idaho archive and Oneida research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Oneida County, Idaho”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Oneida County, Idaho” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.