Fort Madison–Keokuk micropolitan area
micropolitan statistical area in the United States
The Fort Madison–Keokuk, IA-IL-MO Micropolitan Statistical Area, as defined by the United States Census Bureau, locally known as the "Tri-State" area, was an area consisting of three counties – one in southeast Iowa, one in northeast Missouri, and one in west central Illinois, anchored by the cities of Fort Madison, Iowa and Keokuk, Iowa. As of the 2010 census, the μSA had a population of 62,105. An estimate by the Census Bureau, as of July 1, 2012, placed the population at 61,477, a decrease of 1.01%. When the 2023 definitions were released this area was dissolved with Lee County, Iowa being included as part of the Burlington–Fort Madison, IA–IL Combined Statistical Area.
Counties
Clark County, Missouri
Hancock County, Illinois
Lee County, Iowa (Central county)
Communities
Townships
Clark County, Missouri
Hancock County, Illinois
Lee County, Iowa
Demographics
As of the census of 2000, there were 45,468 people, 18,127 households, and 12,327 families residing within the μSA. The racial makeup of the μSA was 94.99% White, 2.36% African American, 0.25% Native American, 0.34% Asian, 0.05% Pacific Islander, 0.90% from other races, and 1.11% from two or more races. Hispanic or Latino of any race were 2.10% of the population.
The median income for a household in the μSA was $32,825, and the median income for a family was $39,464. Males had a median income of $29,783 versus $20,869 for females. The per capita income for the μSA was $17,209.
Begin with the source’s own compact description: “Fort Madison–Keokuk micropolitan area” is micropolitan statistical area in the United States. The dossier treats that line as a proposition to test through Fort, Madison and Keokuk, not as a finished interpretation.
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The phrase “micropolitan statistical area in the United States” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Apr 22, 2026. The linked authority identifier is Q5471577. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2010, 2012, 2023 and 2000.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Fort Madison–Keokuk micropolitan area” 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.