Trotwood, Ohio

Trotwood fell from 24,431 to 23,070 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 81 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1905 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.

• 1905 USGS Brookville quadrangle1:62500
• 1953 USGS Cincinnati quadrangle1:250000
• 1953 USGS Cincinnati quadrangle1:250000
• 1953 USGS Cincinnati quadrangle1:250000
• 1955 USGS Trotwood quadrangle1:24000
• 1957 USGS Cincinnati quadrangle1:250000
• 1965 USGS Trotwood quadrangle1:24000
• 1965 USGS Trotwood quadrangle1:24000
• 1965 USGS Trotwood quadrangle1:24000
• 1965 USGS Trotwood quadrangle1:24000
• 1965 USGS Trotwood quadrangle1:24000
• 1986 USGS Dayton quadrangle1:100000
• 1986 USGS Dayton quadrangle1:100000

Museums hold 1,039 specimens collected within 10 miles of Trotwood between 1835 and 1975: 889 Animalia, 83 Plantae, 59 Fungi, 4 Unrecorded, 3 Protozoa, 1 Chromista. 12 distinct Species records are shown. Collected by A. E. Foeerste, A. E. Foerste, A. F. Foerste 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
	Ambrosia artemisiifolia L.	1881	Foerste AF
	Geaster limbatus Fr.	1883	A. E. Foeerste	Dayton
	Hypoxylon cohaerens (Pers.) Fr.	1897	H. W. Anderson
	Botrypus virginianus (L.) Michx.	1835	Joseph C. Frank	Ohio, Miami [County]
	Platanthera leucophaea (Nutt.) Lindl.	1836	C. W. Short	Dayton
	Erythronium americanum Ker Gawl.	1837	van Cleve, John W.	3 mi. north of Dayton
	Hydrophyllum macrophyllum Nutt.	1838	J. W. Van Cleve	Dayton
	Cardamine L.	1839	Sanders, Alfred; J.J. Nagel, J.G. Haupt.	Dayton. 1 mile east.
	Cassia marilandica L.	1839	Sanders, Alfred	Dayton
	Cynoglossum officinale L.	1839	not recorded	Dayton. Suburbs E.
	Iris versicolor L.	1839	not recorded	Dayton. 2 mi. south
	Nuphar advena (Aiton) Aiton	1839	Sanders, Mrs.; J.G. Haupt	Dayton

All 1,039 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 4 workings within 5 miles of Trotwood: 2 past producers, 1 plant, 1 producer. 2 still produce. What was taken out: Sand and Gravel, Construction, 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 Montgomery County

The National Weather Service names Trotwood in 17 storm reports between 1994 and 2025: 11 thunderstorm wind, 5 hail, 1 flash flood. The reports record 2 injuries. 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 Montgomery 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 1061709. 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.