Linn County, Iowa
county in Iowa, United States
Linn County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 230,299, and was estimated to be 232,028 in 2025, making it the second-most populous county in Iowa. The county seat and the largest city is Cedar Rapids. Linn County is named in honor of Senator Lewis F. Linn of Missouri. Linn County is included in the Cedar Rapids, IA Metropolitan statistical area.
History
The earliest inhabitants of Linn County, prior to Anglo settlement, were the Sac and Fox tribes. Relations were described by 20th century historians as amicable. Native Americans provided food and furs to whites in exchange for merchandise.
Linn County was created as a named but unorganized area on December 21, 1837, as a part of Wisconsin Territory. It became part of Iowa Territory on July 3, 1838, when the territory was organized.
This brief starts where responsible research should: with the source description of “Linn County, Iowa” as county in Iowa, United States. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as county in Iowa, United States. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 18, 2026. The linked authority identifier is Q485741. VIAF identifies the subject as 141900620. The Library of Congress control number is n81035038. Authority coordinates are 42.079, -91.600. 4 of 5 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020, 2025, 1837 and 1838.
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 “Linn County, Iowa”, its source revision and the description used here.
- Expand the search: follow Linn County, Iowa primary sources, Linn County, Iowa archive and Linn 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 “Linn County, Iowa”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Linn County, Iowa” 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.