Piqua, Ohio

Piqua fell from 20,522 to 20,354 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. 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.

The same ground, surveyed 72 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1914 1986

Matched 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.

• 1914 USGS Troy quadrangle1:62500
• 1914 USGS Troy quadrangle1:62500
• 1944 USGS Troy quadrangle1:62500
• 1953 USGS Muncie quadrangle1:250000
• 1953 USGS Muncie quadrangle1:250000
• 1953 USGS Muncie quadrangle1:250000
• 1953 USGS Muncie quadrangle1:250000
• 1953 USGS Muncie quadrangle1:250000
• 1956 USGS Muncie quadrangle1:250000
• 1961 USGS Piqua East quadrangle1:24000
• 1961 USGS Piqua East quadrangle1:24000
• 1961 USGS Piqua East quadrangle1:24000
• 1961 USGS Piqua East quadrangle1:24000
• 1986 USGS Piqua quadrangle1:100000
• 1986 USGS Piqua quadrangle1:100000
• 1986 USGS Piqua quadrangle1:100000

The county-history sources names this settlement in its chapter on Piqua City. These are the passages that mention it, exactly as the scans read.

Taken for the Office of War Information and the Farm Security Administration, who photographed the country between 1935 and 1944. Works of United States government photographers, with no known restriction on use. Each opens its catalogue record.

Regional context, not property-specific evidence. Museums hold 335 specimens collected within 10 miles of Piqua between 1835 and 1973: 303 Animalia, 16 Plantae, 14 Fungi, 1 Unrecorded, 1 Chromista. 12 distinct Species records are shown. Collected by A. Gaufin, A. R. Gaufin, A.R. Gaufin and others. Each is a physical object with a catalogue number, and each entry opens the museum's record. This is what was collected and kept, not a survey of what lives here - nothing can be concluded from a species being absent.

Image	Species	Year	Collected by	Where, as recorded
	Quercus macrocarpa Michx.	1835	Frank
	unnamed	1897	F. L. Stevens	Sugar Grove.
	Albugo candida (Pers. ex J.F.Gmel.) Roussel	1897	F.L. Stevens	Sugar Grove
	Carex albursina E.Sheld.	1835	Collector unknown
	Carex emmonsii var. muhlenbergii (A.Gray ex Torrey) Rettig	1835	Collector unspecified
	Gentianella quinquefolia subsp. occidentalis (A.Gray) J.M.Gillett	1835	Joseph C. Frank	Ohio, in ditione civitatis Miami
	Cercosporina apii (Fresen.) Miura	1896	Skinner C. W.	Troy
	Marssonina panattoniana (Berl.) Magnus	1896	Skinner C. W.	Troy
	Phyllosticta podophylli (M.A.Curtis) G.Winter	1897	F.L. Stevens
	Potamogeton amplifolius Tuck.	1899	Young, WU
	Daedalea confragosa (Bolton) Pers.	1906	Fischer G. C.	Troy
	Polyporus radicatus Schwein.	1909	Thomas	Troy

All 335 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 7 workings within 5 miles of Piqua: 4 producers, 3 past producers. 4 still produce. What was taken out: Sand and Gravel, Construction, Clay, Limestone, General, Stone, Crushed/Broken. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Miami County

Regional context, not property-specific evidence. The National Weather Service names Piqua in 46 storm reports between 1995 and 2024: 27 thunderstorm wind, 12 hail, 2 tornado, 2 flash flood. The reports record 1 death and 1 injury. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Miami County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

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.

This settlement is recorded in the Geographic Names Information System as feature 1061544. 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.

Specimens. Global Biodiversity Information Facility (GBIF), https://www.gbif.org/. Only records licensed CC0 or CC BY are used. Records licensed CC BY-NC are excluded because this site carries advertising. Images are checked individually and any whose licence is non-commercial, no-derivatives or unreadable is refused.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.