Mount Ayr, Iowa
12 topographic sheets cover this place, the earliest surveyed in 1945 and the latest in 1985. It stands in Mount Ayr City. It lies in ZIP code area 50854. The Survey maps it on the Mount Ayr quadrangle. 1,623 people lived here at the 2020 count. It stands 1,220 feet above sea level.
On record in Mount Ayr
Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.
On the National Register 2 records
Ringgold County Courthouselisted 1981
Ringgold County Jaillisted 1979
Population over time
2 figuresMount Ayr fell from 1,691 to 1,623 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2010 | 1,691 | |
| 2020 | 1,623 | -68 (-4%) |
Topographic sheets covering this place
7 surveys from 12 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1945 USGS Mount Ayr quadrangle1:62500, 2 printings
- 1947 USGS Mount Ayr quadrangle1:62500, 2 printings
- 1955 USGS Nebraska City quadrangle1:250000, 3 printings
- 1957 USGS Nebraska City quadrangle1:250000
- 1958 USGS Nebraska City quadrangle1:250000
- 1981 USGS Mount Ayr quadrangle1:24000
- 1985 USGS Mount Ayr quadrangle1:100000, 2 printings
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Marshall (historical) | 5.0 miles | 13 | |
| Delphos | 6.6 miles | 13 | |
| Benton | 6.6 miles | 13 | |
| Caledonia (historical) | 7.3 miles | 12 | |
| Watterson | 7.8 miles | 12 | |
| Wanamaker | 8.2 miles | 12 | |
| Diagonal | 8.7 miles | 8 | |
| Knowlton | 9.3 miles | 8 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on Mount Ayr | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q1911294 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 459275. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.






