Plumbing repair · Gahanna, Ohio
Plumbing repair in Gahanna, OH
Leak, backed-up drain, no hot water, or a frozen line? The largest share of Gahanna's homes (22%) was built 1990 to 1999[1]. Request a licensed plumber who works here. Gahanna, in Franklin County — ZIP 43230, counts 35,986 residents (2025 estimate)[2].
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Gahanna at a glance for plumbing
- Population (2025 est.)
- 35,986[2]+0.7% since 2020
- County
- Franklin[2]
- Land area
- 12.4 sq mi[3]
- Decade the most homes date from
- 1990 to 1999[1]22% of housing units
- Homes built before 1980
- 42%[1]the 8th-highest share of the 15 Columbus-area suburbs we cover
- Homes built 1980–1999
- 39%[1]2020–2024
- Homes built 2010 or later
- 6%[1]the 5th-lowest share of the 15 Columbus-area suburbs we cover
- Winter-storm & freeze days, franklin zone
- 68[4]2016–2025
- Flood & flash-flood reports within 10 mi
- 58[4]23 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
- FEMA flood-insurance claims, local ZIPs
- 68[5]13 in the last 10 years; 55 paid
- Homes on utility gas heat
- 74%[1]gas piping work usually needs a permit and a licensed installer
What the local data means for plumbing in Gahanna
Gahanna counts 35,986 residents (2025 estimate), growing at a middle-of-the-pack 0.7% since 2020[2]. On the map that's 12.4 square miles holding 2,895 residents per square mile, the 6th densest of the suburbs here; it sits entirely in Franklin County, with ZIP code 43230[3].
With 6% of homes built since 2010 and 42% before 1980[1], Gahanna's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.
The entire city sits in ZIP code 43230[6].
Nearest of the other suburbs we track: Whitehall (4.7 mi S), Westerville (6.2 mi N) and Reynoldsburg (7.1 mi SE)[3].
42% of Gahanna's 14,673 housing units predate 1980 and 6% went up in 2010 or later[1] — the 8th-highest pre-1980 share of the 15 Columbus-area suburbs we cover; nearby, Whitehall (79%), Westerville (46%), and Reynoldsburg (43%) predate 1980. The 39% built in 1980–1999 are at the age where original water heaters and valves get replaced.
The biggest single slice — 22% — was built 1990 to 1999, and the median home dates to 1985[1]. Neighbours from the same era tend to hit the same plumbing problems at the same time.
Freeze risk: the franklin forecast zone logged 68 winter-storm, ice or hard-freeze days in 2016–2025, including February 2021; the latest was Dec 13, 2025[4].
Water from the sky is plumbing work too: 58 flood or flash-flood reports within 10 miles over 2016–2025[4], and FEMA logged 68 flood-insurance claims across Gahanna's ZIPs[5]. Homes that take water need working drainage, sump pumps and backflow prevention.
74% of homes heat with utility gas, and 29% of households rent[1].
Measured against the 15 suburbs on this site, Gahanna records the 2nd-most flood reports nearby (58)[4].
Gahanna storm calendar
Within 10 miles of Gahanna, 2016–2025: 23 flash-flood reports and 35 flood or heavy-rain reports[4]. Peak: 74% in May, July, and August. Busiest year 2017 (12); 1 of 10 years had none. Busiest month July 2017 (11). Latest: flood or heavy-rain report, Apr 2, 2024, 8.5 mi out.
| Month | Flash flood | Flood & heavy rain | All |
|---|---|---|---|
| Mar | 2 | – | 2 |
| Apr | – | 2 | 2 |
| May | 3 | 6 | 9 |
| Jun | 5 | 4 | 9 |
| Jul | 8 | 14 | 22 |
| Aug | 4 | 8 | 12 |
| Sep | 1 | 1 | 2 |
plumbing help in Gahanna: what to do next
Requests go to Plumbing repair contractors serving the Gahanna area — ZIP code 43230.
Before you call: before the plumber arrives
Gahanna by the numbers
| Measure | Gahanna | Median of 15 | Difference |
|---|---|---|---|
| Flood reports (10 mi) | 58 | 35 | 23 more |
| Built before 1960 | 6.3% | 14.4% | 8 pts lower |
| Built 2010 or later | 6% | 10% | 5 pts lower |
| Utility-gas heat | 74% | 75% | 2 pts lower |
| Built before 1980 | 42% | 42% | same as median |
| Median year built | 1985 | 1985 | same as median |
| Renter-occupied | 29% | 29% | same as median |
Sorted by largest difference. Each median is the middle value across the covered Columbus-area suburbs, from the same sources.
| City | Flood reports | NFIP claims |
|---|---|---|
| Gahanna | 58 | 68 |
| Whitehall 4.7 mi | 68 | 102 |
| Westerville 6.2 mi | 35 | 71 |
| Reynoldsburg 7.1 mi | 51 | 197 |
| Worthington 8.5 mi | 43 | 60 |
| Upper Arlington 10.1 mi | 46 | 76 |
| ZIP | Claims | Paid | Busiest year |
|---|---|---|---|
| 43230 | 68 | $321,062 | 1979 (23) |
ZIPs extend past city limits.
| Date | Type | Distance |
|---|---|---|
| Apr 2, 2024 | Flood | 8.5 mi |
| Jul 24, 2023 | Flood | 2.4 mi |
| May 12, 2023 | Flood | 3.7 mi |
| Aug 21, 2022 | Flood | 7.0 mi |
| Aug 21, 2022 | Flood | 6.1 mi |
| Aug 21, 2022 | Flood | 9.1 mi |
| Jul 6, 2022 | Flood | 1.5 mi |
| Jul 6, 2022 | Flash Flood | 9.9 mi |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 52 | 0.4% | ±57 |
| 2010 to 2019 | 757 | 5.2% | ±227 |
| 2000 to 2009 | 1,959 | 13.4% | ±429 |
| 1990 to 1999 | 3,230 | 22.0% | ±407 |
| 1980 to 1989 | 2,535 | 17.3% | ±420 |
| 1970 to 1979 | 2,939 | 20.0% | ±406 |
| 1960 to 1969 | 2,271 | 15.5% | ±320 |
| 1950 to 1959 | 618 | 4.2% | ±175 |
| 1940 to 1949 | 67 | 0.5% | ±50 |
| 1939 or earlier | 245 | 1.7% | ±108 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 14,673 |
| Detached single-family | 10,039 (68%) |
| Occupied homes | 14,254 |
| Owner-occupied | 10,064 (71%) |
| Renter-occupied | 4,190 (29%) |
| Median home value | $350,900 |
ACS 2020–2024 estimates.
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Utility gas | 10,489 | 73.6% | ±601 |
| Electricity | 3,490 | 24.5% | ±457 |
| Bottled or tank gas (propane, butane, etc.) | 147 | 1.0% | ±95 |
| Solar energy | 64 | 0.4% | ±101 |
| No fuel used | 38 | 0.3% | ±46 |
| Other fuel | 15 | 0.1% | ±24 |
| Fuel oil, kerosene, etc. | 11 | 0.1% | ±18 |
| ZIP (ZCTA) | Share of Gahanna's land | Share of the ZIP inside the city |
|---|---|---|
| 43230 | 92% | 56% |
Dated heat and freeze records for the FRANKLIN forecast zone: see the county list.
Gahanna plumbing questions
Are Gahanna homes likely to have old galvanized pipes?
Only an inspection can say, but age is the clue: 6% were built before 1960 and 42% before 1980[1].
How often do pipes freeze in Gahanna?
The record for Gahanna's forecast zone shows 68 winter-storm or freeze days over 2016–2025, in 10 different years[4].
Which ZIP codes are covered in Gahanna?
43230[6], in Franklin County. Nearby suburbs with their own pages: Whitehall (4.7 mi), Westerville (6.2 mi), and Reynoldsburg (7.1 mi)[3].
Sources
- Census ACS 2020–2024 5-year (keyless bulk)
- Census population estimates, Vintage 2025
- Census Gazetteer 2025
- NOAA Storm Events Database
- OpenFEMA NFIP claims
- Census 2020 ZCTA–place file
Data pulled Sep 28, 2026. Full citations and method.