Pomeroy, Iowa
human settlement in Calhoun County, Iowa, United States of America

Pomeroy is a city in Calhoun County, Iowa, United States. The population was 526 at the time of the 2020 census.
History
Pomeroy was platted in 1870 in anticipation of the railroad being built through the settlement. It was named for Charles Pomeroy, an Iowa politician.
On July 6, 1893, Pomeroy was struck by a tornado that was later estimated to be F5 on the Fujita scale. With a damage path 500 yards (460 m) wide and 55 miles (89 km) long, the tornado destroyed about 80% of the homes in Pomeroy. The tornado killed 71 people and injured 200.
Geography
According to the United States Census Bureau, the city has a total area of 2.04 square miles (5.28 km2), all land.
Pomeroy lies within the western side of Manson crater, an impact structure buried by glacial till and outwash.
Demographics
2020 census
As of the census of 2020, there were 526 people, 248 households, and 131 families residing in the city.
“Pomeroy, Iowa” enters the record as human settlement in Calhoun County, Iowa, United States of America. Crown Archives preserves that source wording while asking what Pomeroy, Iowa and human can confirm, complicate or overturn.
Why this record matters
“Pomeroy, Iowa” is worth following because a concise public description often conceals a longer documentary argument. Here, Pomeroy, Iowa and human 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 Aug 25, 2026. The linked authority identifier is Q1928030. Authority coordinates are 42.548, -94.684. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020, 1870 and 1893.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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.
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Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
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Questions for further research
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This entry incorporates text from “Pomeroy, 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.