Block
Gahanna, Ohio
14 topographic sheets cover this place, the earliest surveyed in 1902 and the latest in 1995. It stands in Mifflin Township. It lies in ZIP code area 43230. It stands on Rocky Fork Creek. The Survey maps it on the Northeast Columbus quadrangle. 35,726 people lived here at the 2020 count. It stands 794 feet above sea level.
Population over time
2 figuresGahanna grew from 33,248 to 35,726 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 | 33,248 | |
| 2020 | 35,726 | +2,478 (+7%) |
Then and now
1902 to 1995The same ground, surveyed 93 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
14 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.
- 1902 USGS Westerville quadrangle1:62500
- 1904 USGS Westerville quadrangle1:62500
- 1904 USGS Westerville quadrangle1:62500
- 1950 USGS Marion quadrangle1:250000
- 1954 USGS Northeast Columbus quadrangle1:24000
- 1962 USGS Marion quadrangle1:250000
- 1964 USGS Northeast Columbus quadrangle1:24000
- 1964 USGS Northeast Columbus quadrangle1:24000
- 1964 USGS Northeast Columbus quadrangle1:24000
- 1964 USGS Northeast Columbus quadrangle1:24000
- 1966 USGS Marion quadrangle1:250000
- 1966 USGS Marion quadrangle1:250000
- 1966 USGS Marion quadrangle1:250000
- 1995 USGS Northeast Columbus quadrangle1:24000
In the county-history sources
829 words on this townshipHistory of Franklin County [Ohio]:, published 1858 names this settlement in its chapter on Mifflin Township. These are the passages that mention it, exactly as the scans read.
There has not yet been any flouring mill erected in this township, but several saw mills - some that have done a good business, and others that appeared to do well for a time, but were then suffered to run down. Amongst the former, are Dean's old mill, erected over thirty years ago, and now owned by Judge Heyl, and Park's mill ; and amongst the latter, was one erected by Mr. Janney, on Walnut Creek, about the year 1835 or '36, and afterward owned by J. M. Walcutt, Esq., and one erected by A. McElvain, on Alum Creek, about the year 1838 or '39. There is but one town or village in this township, and that is Gahanna, or Bridgeport, laid out part by John Clark, Esq., in 1848 or '49, and called Gahanna, and part by Jesse Baughman, Esq., in 1853, and called Bridgeport. There is a post office in this place, established in August, 1849. Thos. Young, Esq., was the first postmaster, and continued until July, 1853 ; w^hen John T. Baughman, the present incumbent, was appointed. There is another post office on Alum Creek, at Park's saw mill. This was established in 1851. The first postmaster was Jeremiah Lasure, who continued until 1853, when he was succeded by James Parks, Esq., the present incumbent.
Passage source: History of Franklin County [Ohio]:, published 1858.
Machine-read from a century-old scan, so expect the errors a machine makes: misspelled names, dropped words, stray characters.
Fires near this place
1 since 2007Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1 fire within 5 miles of Gahanna between 2007 and 2007, burning about 0 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 |
|---|---|
| Debris and open burning | 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 |
|---|---|---|---|---|
| 10 October 2007 | Debris and open burning | under an acre | Ohio Department of Natural Resources | not named |
Settlements close enough to share some of these fires:
Specimens collected near this place
12 of 10,358 shownRegional context, not property-specific evidence. Museums hold 10,358 specimens collected within 10 miles of Gahanna between 1804 and 1975: 8,370 Animalia, 1,276 Fungi, 567 Plantae, 117 Chromista, 27 Unrecorded, 1 Protozoa. 12 distinct Species records are shown. Collected by 19 V 1938 in original publication, Knull, =, ? 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 |
|---|---|---|---|---|
 | Cintractia sorghi (Sorokn) De Toni | 1900 | Tyler, F.J.; O. E. Jennings | Columbus |
 | Sorghum bicolor (L.) Moench | 1900 | Jennings, O.E. | Columbus, Ohio. |
 | Juniperus virginiana var. virginiana | 1804 | Dr. Paddock | Worthington |
 | Platanthera psycodes (L.) Lindl. | 1805 | J. R. Paddock | Worthington |
 | Carex comosa Boott | 1809 | Collector unknown | Worthington, O. [Inferred county from precise loc.] |
 | Hirundo Linnaeus, 1758 | 1814 | not recorded | Columbus Ohio, Franklin, Ohio, USA |
 | Callimome strobiloides Huber, 1927 | 1821 | C. Huber | Columbus |
 | Solidago riddellii Frank | 1832 | W. A. Kellerman | A few miles N of Columbus. |
 | Carex lupulina Muhl. ex Willd. | 1834 | Anonymous | Columbus. |
 | Anomodon viticulosus (Hedw.) Hook. & Taylor | 1837 | W. S. Sullivant | Near Columbus |
 | Acris crepitans blanchardi Harper, 1947 | 1897 | not recorded | No Further Locality Data |
| Albugo candida (Pers. ex J.F.Gmel.) Roussel | 1897 | Clevenger, J. F. | Columbus |
All 10,358 specimens within 10 miles, at the Global Biodiversity Information Facility.
Mines and quarries near this place
2 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 2 workings within 5 miles of Gahanna: 1 producer, 1 past producer. 1 still produces. What was taken out: Clay. 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 |
|---|---|---|---|---|
| Claycraft No 4 & 5 Pits | Clay | Producer | ||
| Claycraft Pit | Clay | Past Producer | Sedimentary |
Storms near this place
36 since 1994Regional context, not property-specific evidence. The National Weather Service names Gahanna in 36 storm reports between 1994 and 2025: 20 thunderstorm wind, 9 hail, 4 flood, 2 flash 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 |
|---|---|---|---|---|
| October 2006 | Hail | Gahanna | $100,000,000 | Hail up to hen egg size fell for up to 15 minutes across the eastern Columbus suburbs, causing extensive widespread damage to vehicles, homes and other structures. The hail accumulated up to several inches deep in spots, and remained on the ground well after the thunderstorm had passed. |
| October 2006 | Hail | Gahanna | $100,000 | Golf ball size hail fell for five to ten minutes across eastern Franklin county and covered the ground. Several homes and structures sustained damage from the hail. |
| June 2016 | Thunderstorm Wind | Gahanna | $50,000 | Multiple large branches were knocked down along Cherry Bottom Road. |
| July 2023 | Thunderstorm Wind | Gahanna | $5,000 | Several large trees were downed. |
| July 2012 | Thunderstorm Wind | Gahanna | $5,000 | Multiple trees six inches in diameter were reported down near Gahanna due to damaging thunderstorm winds. |
| June 2006 | Thunderstorm Wind | Gahanna | $5,000 | Several trees and large limbs were knocked down. |
| May 2000 | Thunderstorm Wind | Gahanna | $5,000 | Numerous trees downed. Nickel size hail also occurred. |
| July 1999 | Thunderstorm Wind | Gahanna | $5,000 | Trees and power lines knocked down. |
| September 1994 | Thunderstorm Wind | Gahanna | $5,000 | Trees were downed. |
| June 2006 | Thunderstorm Wind | Gahanna | $3,000 | Large tree limbs were downed. |
| August 2017 | Thunderstorm Wind | Gahanna | $2,000 | Power lines were knocked down and trees were snapped on Hamilton Road. |
| August 2017 | Thunderstorm Wind | Gahanna | $2,000 | Several large trees were knocked down between Gahanna Lincoln High School and John Glenn Columbus International Airport. |
| June 2000 | Thunderstorm Wind | Gahanna | $2,000 | Two large trees were downed...one blocking Morse Road. |
| June 2000 | Thunderstorm Wind | Gahanna | $2,000 | Two large trees were downed, one falling across Morse Road. |
| May 2015 | Thunderstorm Wind | Gahanna | $1,000 | A tree was downed. |
| December 2013 | Flash Flood | Gahanna | $1,000 | A few roads were closed in Gahanna due to high water caused by heavy rainfall. One of these roads included Ridenour Road. |
| September 2012 | Thunderstorm Wind | Gahanna | $1,000 | A tree was downed on Crown Hill Court due to damaging thunderstorm winds. |
| September 2012 | Thunderstorm Wind | Gahanna | $1,000 | A tree was downed near the intersection of High and Walnut Streets due to damaging thunderstorm winds. |
| April 2011 | Thunderstorm Wind | Gahanna | $1,000 | Several large tree branches were broken due to the winds. |
| June 2025 | Thunderstorm Wind | Gahanna | $250 | Several large limbs were downed along Tresham Road. |
| May 2020 | Thunderstorm Wind | Gahanna | $250 | A few very large branches were snapped off of two healthy trees on Majoram Drive. |
| June 2019 | Flood | Gahanna | - | High water was reported on Hamilton Road. |
| July 2018 | Flood | Gahanna | - | Widespread street flooding was reported in Gahanna. |
| July 2017 | Flash Flood | Gahanna | - | High water was covering several neighborhood roads. |
| July 2017 | Flood | Gahanna | - | High water was reported on Bridgestone Drive. |
| July 2015 | Flood | Gahanna | - | High water was covering residential streets. Water depth was at least halfway up car tires. |
| July 2011 | Heavy Rain | Gahanna | - | Standing water was reaching half way up cars due to heavy rain. |
| April 2024 | Hail | Gahanna | - | no account filed |
| February 2024 | Hail | Gahanna | - | no account filed |
| July 2012 | Hail | Gahanna | - | no account filed |
| September 2012 | Hail | Gahanna | - | no account filed |
| September 2012 | Hail | Gahanna | - | no account filed |
| June 2012 | Thunderstorm Wind | Gahanna | - | no account filed |
| April 2011 | Thunderstorm Wind | Gahanna | - | no account filed |
| April 2010 | Hail | Gahanna | - | no account filed |
| July 2006 | Hail | Gahanna | - | 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 |
|---|---|---|---|
| Wonderland (historical) | 1.2 miles | 12 | |
| Taylor Station | 2.9 miles | 16 | |
| Big Walnut (historical) | 3.0 miles | 16 | |
| Parks Mills | 3.0 miles | 14 | |
| Stepping Stone | 3.0 miles | 12 | |
| Jefferson Meadows | 3.1 miles | 12 | |
| The Woods At Havens Run | 3.1 miles | 12 | |
| Kitzmiller Crossing | 3.1 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 Gahanna | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q1924937 | 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 1064696. 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.