Block
Unionville Center, Ohio
12 topographic sheets cover this place, the earliest surveyed in 1916 and the latest in 1992. It stands in Darby Township. It lies in ZIP code area 43077. The Survey maps it on the Marysville quadrangle. 241 people lived here at the 2020 count. It stands 971 feet above sea level.
Population over time
2 figuresUnionville Center grew from 233 to 241 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 | 233 | |
| 2020 | 241 | +8 (+3%) |
Then and now
1916 to 1992The same ground, surveyed 76 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.
Topographic sheets covering this place
12 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.
- 1916 USGS Milford Center quadrangle1:62500
- 1944 USGS Milford Center quadrangle1:62500
- 1950 USGS Marion quadrangle1:250000
- 1961 USGS Marysville quadrangle1:24000
- 1961 USGS Marysville quadrangle1:24000
- 1961 USGS Marysville quadrangle1:24000
- 1962 USGS Marion quadrangle1:250000
- 1966 USGS Marion quadrangle1:250000
- 1966 USGS Marion quadrangle1:250000
- 1966 USGS Marion quadrangle1:250000
- 1986 USGS Bellefontaine quadrangle1:100000
- 1992 USGS Bellefontaine quadrangle1:100000
Specimens collected nearby
12 of 359 shownMuseums hold 359 specimens collected within 10 miles of Unionville Center between 1918 and 1975: 350 Animalia, 5 Plantae, 4 Fungi. 12 distinct Species records are shown. Collected by A. Spreitzer, A. Spreitzer & W. LeGrande, Andrew R. Moldenke 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 |
|---|---|---|---|---|
 | Empoasca fabae (Harris, 1841) | 1918 | H.T. Osborn | |
 | Hydnum erinaceus Bull. | 1918 | Weir J. R. | Marysville |
 | Erimyzon oblongus claviformis (Girard, 1856) | 1928 | Trautman, M. B. (Milton Bernard) | Sugar Run, within Jerome township, near Plain City, Jerome township |
 | Etheostoma spectabile (Agassiz, 1854) | 1928 | Trautman, M. B. (Milton Bernard) | Sugar Run, within Jerome township, near Plain City, Jerome township |
 | Fundulus notatus (Rafinesque, 1820) | 1928 | Trautman, M. B. (Milton Bernard) | Sugar Run, within Jerome township, near Plain City, Jerome township |
 | Ictalurus melas (Linnaeus, 1758) | 1928 | Trautman, M. B. (Milton Bernard) | Sugar Run, within Jerome township, near Plain City, Jerome township |
 | Lepomis cyanellus Rafinesque, 1819 | 1928 | Trautman, M. B. (Milton Bernard) | Sugar Run, within Jerome township, near Plain City, Jerome township |
 | Pimephales notatus (Rafinesque, 1820) | 1928 | Trautman, M. B. (Milton Bernard) | Sugar Run, within Jerome township, near Plain City, Jerome township |
 | Pimephales promelas promelas Rafinesque, 1820 | 1928 | Trautman, M. B. (Milton Bernard) | Sugar Run, within Jerome township, near Plain City, Jerome township |
 | Ameiurus melas (Rafinesque, 1820) | 1930 | MB Trautman | Buck Creek, N Union Township |
 | Catostomus commersonnii commersonnii (Lacepède, 1803) | 1930 | MB Trautman | Buck Creek, N Union Township |
 | Etheostoma nigrum Rafinesque, 1820 | 1930 | MB Trautman | Buck Creek, N Union Township |
All 359 specimens within 10 miles, at the Global Biodiversity Information Facility.
Storms nearby
6 since 2002The National Weather Service names Unionville Center in 6 storm reports between 2002 and 2026: 4 hail, 2 thunderstorm wind. 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 |
|---|---|---|---|---|
| July 2014 | Thunderstorm Wind | Unionville Center | $8,000 | Thunderstorm winds caused garage damage to a house on Darby Blvd West. Several trees were also downed. |
| May 2011 | Thunderstorm Wind | Unionville Center | $1,000 | One tree was reported down due to damaging thunderstorm winds. |
| March 2026 | Hail | Unionville Center | - | no account filed |
| March 2020 | Hail | Unionville Center | - | no account filed |
| August 2013 | Hail | Unionville Center | - | no account filed |
| May 2002 | Hail | Unionville Center | - | no account filed |
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 |
|---|---|---|---|
| Darby Meadows | 2.0 miles | 12 | |
| Chuckery | 3.3 miles | 10 | |
| Bridgeport | 3.3 miles | 12 | |
| Dipple | 4.6 miles | 12 | |
| Arnold | 4.7 miles | 12 | |
| Hickory Run | 5.2 miles | 12 | |
| New California | 5.6 miles | 15 | |
| Adena Pointe | 5.6 miles | 12 |
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 Unionville Center | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q2258630 | 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 1065412. 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.
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.