Decorative drawing: a small American settlement seen from a low hill. Not a photograph of this place.

Dellroy, Ohio

16 topographic sheets cover this place, the earliest surveyed in 1910 and the latest in 1994. It stands in Monroe Township. It lies in ZIP code area 44620. It stands on Dellroy Creek. The Survey maps it on the Dellroy quadrangle. 268 people lived here at the 2020 count. It stands 958 feet above sea level.

Dellroy within Carroll County

Population over time

2 figures

Dellroy fell from 356 to 268 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.

Year	People	Change
2010	356
2020	268	-88 (-25%)

Then and now

1910 to 1994

The same ground, surveyed 84 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Dellroy, surveyed 1994

Topographic sheet of Dellroy, surveyed 1910

Topographic sheets covering this place

16 sheets

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.

Fires nearby

22 since 2005

The federal wildfire occurrence database lists 22 fires within 5 miles of Dellroy between 2005 and 2019, burning about 288 acres in total. None started naturally. None 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.

Reported cause	Fires
Missing data/not specified/undetermined	9
Debris and open burning	7
Power generation/transmission/distribution	4
Equipment and vehicle use	1
Recreation and ceremony	1

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

Date	Cause	Size	Reported by	Name on the report
9 August 2016	Missing data/not specified/undetermined	under an acre	Ohio Department of Natural Resources	5328
5 August 2017	Missing data/not specified/undetermined	under an acre	Ohio Department of Natural Resources	8647
6 May 2018	Power generation/transmission/distribution	3.0 acres	Ohio Department of Natural Resources	13825
30 May 2012	Equipment and vehicle use	2.9 acres	Ohio Department of Natural Resources	not named
4 April 2013	Debris and open burning	1.5 acres	Ohio Department of Natural Resources	not named
4 April 2013	Debris and open burning	2.0 acres	Ohio Department of Natural Resources	not named
18 April 2013	Recreation and ceremony	2.0 acres	Ohio Department of Natural Resources	not named
17 April 2005	Debris and open burning	3.2 acres	Ohio Department of Natural Resources	not named

Settlements close enough to share some of these fires:

Every fire recorded in Carroll County

Specimens collected nearby

12 of 204 shown

Museums hold 204 specimens collected within 10 miles of Dellroy between 1905 and 1975: 194 Animalia, 8 Plantae, 2 Fungi. 12 distinct Species records are shown. Collected by Allen, E. J., Armbruster, D. C. (Daniel C.), Baker, C. W. 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.

Species	Year	Collected by	Where, as recorded
Dryopteris spinulosa (O.F.Müll.) Watt	1970	Jones, G.T.	moist wooded river valley west of Leesville
Amblema plicata (Say, 1817)	1905	Ortmann, Arnold E	New Hagerstown
Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb.	1905	Ortmann, A.E.	Bowerston
Pyganodon grandis (Say, 1829)	1905	Ortmann, Arnold E	New Hagerstown
Achalarus lyciades (Geyer, 1832)	1927	C.W. Baker
Pleurotus ulmarius (Bull.) P.Kumm.	1927	not recorded	Bowerston
Ericymba buccata Cope, 1865	1928	Trautman, M. B. (Milton Bernard)	Sandy Creek, at Waynesburg, ~0.4 mi NW of Waynesburg, Sandy township
Etheostoma blennioides Rafinesque, 1819	1928	Trautman, M. B. (Milton Bernard)	Sandy Creek, at Waynesburg, ~0.4 mi NW of Waynesburg, Sandy township
Etheostoma caeruleum Storer, 1845	1928	Trautman, M. B. (Milton Bernard)	Sandy Creek, at Waynesburg, ~0.4 mi NW of Waynesburg, Sandy township
Etheostoma zonale (Cope, 1868)	1928	Trautman, M. B. (Milton Bernard)	Sandy Creek, at Waynesburg, ~0.4 mi NW of Waynesburg, Sandy township
Moxostoma erythrurum (Rafinesque, 1818)	1928	Trautman, M. B. (Milton Bernard)	Sandy Creek, at Waynesburg, ~0.4 mi NW of Waynesburg, Sandy township
Notropis deliciosus (Girard, 1856)	1928	Trautman, M. B. (Milton Bernard)	Sandy Creek, at Waynesburg, ~0.4 mi NW of Waynesburg, Sandy township

All 204 specimens within 10 miles, at the Global Biodiversity Information Facility.

Mines and quarries nearby

2 within 5 miles

The federal mineral resources record lists 2 workings within 5 miles of Dellroy: 1 past producer, 1 producer. 1 still produces. What was taken out: Stone, Crushed/Broken, Flagstone. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Where	Site	Commodity	Status	Recorded
	Conotton Valley Quarry	Stone, Crushed/Broken	Past Producer	Sedimentary
	Conotton Valley Quarry	Flagstone	Producer

Every working recorded in Carroll County

Storms nearby

27 since 1997

The National Weather Service names Dellroy in 27 storm reports between 1997 and 2025: 19 thunderstorm wind, 5 flash flood, 2 hail, 1 flood. No death or injury is recorded in these reports. 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.

When	Event	Place named	Harm	What the report says
August 2020	Thunderstorm Wind	Dellroy	$50,000	The Carroll County ODOT office reported numerous trees down throughout the county.
June 2020	Thunderstorm Wind	Dellroy	$50,000	Numerous instances of wind damage were noted in Dellroy.
September 2012	Thunderstorm Wind	Dellroy	$35,000	The 911 call center reported trees down.
August 2007	Thunderstorm Wind	Dellroy	$35,000	Emergency management reported trees down in Delroy.
November 2003	Thunderstorm Wind	Dellroy	$30,000	A microburst, with an estimated wind of 60 mph (52kt), struck near Atwood Lake, producing a swath of damage along Menlo Drive off Route 542. The microburst was 200 yards long and 50 yards wide. Numerous tall pine trees were snapped. A few fell onto houses and sheds.
June 2014	Thunderstorm Wind	Dellroy	$10,000	Emergency management reported multiple trees down on State Route 39.
March 2008	Flood	Dellroy	$10,000	Emergency management reported CR-20 and CR-11 closed due to flooding around Carrollton.
July 2005	Thunderstorm Wind	Dellroy	$10,000	Trees and power lines down from Dellroy to Petersburg.
August 2006	Thunderstorm Wind	Dellroy	$7,000	Trees and power lines down.
April 2020	Thunderstorm Wind	Dellroy	$5,000	Multiple trees were reported to be blown over and uprooted.
June 2019	Thunderstorm Wind	Dellroy	$5,000	A county 911 dispatcher stated that a tree was blown on to a house, plus wire poles were blown down southeast of Dellroy.
June 2014	Thunderstorm Wind	Dellroy	$5,000	Law enforcement reported trees down.
November 2002	Thunderstorm Wind	Dellroy	$5,000	TREES DOWNED BY WIND
May 1997	Thunderstorm Wind	Dellroy	$2,000	Power lines were reported downed in the western part of the county.
June 2025	Thunderstorm Wind	Dellroy	$1,000	A tree was reported down between Dellroy and Carrolton.
May 2003	Thunderstorm Wind	Dellroy	$1,000	TREES DOWN ON GLICO RD.
March 2025	Thunderstorm Wind	Dellroy	-	Downed trees and power lines were reported in the area of Dellroy.
April 2025	Thunderstorm Wind	Dellroy	-	Multiple trees were reported down.
June 2019	Flash Flood	Dellroy	-	The county emergency manager reported that Indian Fork was flooding portions of State Route 39.
June 2019	Flash Flood	Dellroy	-	County law enforcement reported flooding along Route 39, Roswell Road, east of Dellroy near Burrow Road. The road was covered with water.
July 2008	Hail	Dellroy	-	The public reported penny size hail in Dellroy.
June 2006	Thunderstorm Wind	Dellroy	-	Trees down.
October 2006	Thunderstorm Wind	Dellroy	-	Trees down near Dellroy.
May 2004	Flash Flood	Dellroy	-	Dellroy reported flooding at 6 PM EDT; Carrollton at 616 PM EDT.
June 2004	Flash Flood	Dellroy	-	SR 39 and SR 212 flooded.
August 2003	Flash Flood	Dellroy	-	Route 9 north of Carrollton flooded at 330 PM EDT. Route 542 and County Rd 29, north of Dellroy, flooded by 5 PM EDT.
April 2002	Hail	Dellroy	-	no account filed

Every storm recorded in Carroll County

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.

Place	Distance	Sheets
Glenmar	0.6 miles	16
Valleyview	0.7 miles	16
Atwood Valley	0.9 miles	16
Paradise Point	1.1 miles	16
Atwood Pines	1.6 miles	16
Pines Cottage Area	1.9 miles	16
Lakeview	2.0 miles	16
Atwood Crossing	2.0 miles	16

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 Dellroy	An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q2668725	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 1064525. 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.

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.