Northridge, Ohio

Northridge fell from 7,572 to 7,518 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 82 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1904 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.

• 1904 USGS Springfield quadrangle1:62500
• 1904 USGS Springfield quadrangle1:62500
• 1906 USGS Springfield quadrangle1:62500
• 1947 USGS Columbus quadrangle1:250000
• 1955 USGS Springfield quadrangle1:24000
• 1961 USGS Columbus quadrangle1:250000
• 1962 USGS Columbus quadrangle1:250000
• 1966 USGS Springfield quadrangle1:24000
• 1966 USGS Springfield quadrangle1:24000
• 1966 USGS Springfield quadrangle1:24000
• 1966 USGS Springfield quadrangle1:24000
• 1967 USGS Columbus quadrangle1:250000
• 1967 USGS Columbus quadrangle1:250000
• 1986 USGS Springfield quadrangle1:100000
• 1986 USGS Springfield quadrangle1:100000

The county history of 1881 has no passage naming this settlement, which was common for the smaller places. Its township is covered in full.

The federal wildfire occurrence database lists 2 fires within 5 miles of Northridge between 2002 and 2002, burning about 16 acres in total. None started naturally. 1 was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Settlements close enough to share some of these fires:

• Belmont Meadows
• Cheviot Hills
• Eastview Heights
• Edgewood Farms
• Garden Acres
• Glencoe Estates

Every fire recorded in Clark County

Museums hold 740 specimens collected within 10 miles of Northridge between 1840 and 1975: 482 Animalia, 213 Plantae, 44 Fungi, 1 Chromista. 12 distinct Species records are shown. Collected by 73.7; J.H., A. Barron, A. N. Leeds 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
	Cystopteris protrusa (Weath.) Blasdell	1878	Beardslee, H.C.	near Springfield
	Urocystis colchici (Schltdl.) Rabenh.	1916	W.G. Stover; E.C. Leonard	near Springfield
	Ustilago heufleri Fuckel	1917	E.R. Leonard
	Caulophyllum thalictroides (L.) Michx.	1840	Williams, M.G.	Springfield
	Staphylea trifolia L.	1840	Williams, M.G.	Springfield
	Funaria hygrometrica Hedw.	1846	not recorded	Springfield
	Bryhnia graminicolor (Brid.) Grout	1870	J. W. Eckfeldt	near Springfield
	Bryum pseudotriquetrum var. bimum (Schreb.) Lilj.	1870	J. W. Eckfeldt	Springfield
	Hygroamblystegium tenax subsp. orthocladon (P.Beauv.) Wijk & Margad.	1870	J. W. Eckfeldt	Springfield
	Schwetschkeopsis denticulata (Sull.) Broth.	1870	J. W. Eckfeldt	Springfield
	Amblystegium serpens var. angustifolium H.Lindb. ex Limpr.	1871	H. J. Biddlecome	Springfield
	Asterella tenella (L.) P.Beauv.	1871	Hannah J. Biddlecome	Springfield

All 740 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 7 workings within 5 miles of Northridge: 5 past producers, 2 producers. 2 still produce. What was taken out: Sand and Gravel, Construction. 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 Clark 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 1049025. 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.

Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.

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.