Water damage restoration · Gahanna, Ohio
Water damage restoration in Gahanna, OH
Burst pipe, failed water heater, or storm water? Gahanna-area ZIPs: 68 flood claims since 1978[1]; 42% of homes built before 1980[2]. Request help from local restoration crews. Gahanna, in Franklin County — ZIP 43230, counts 35,986 residents (2025 estimate)[3].
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Gahanna water damage snapshot: the key figures
- Population (2025 est.)
- 35,986[3]+0.7% since 2020
- County
- Franklin[3]
- Land area
- 12.4 sq mi[4]
- Flood-insurance (NFIP) claims, local ZIPs
- 68 since 1978[1]$321,062 paid across 55 claims · ZIP 43230
- Flood & flash-flood reports within 10 mi
- 58[5]2016–2025 · latest Apr 2, 2024
- Winter-storm & freeze days, franklin zone
- 68[5]2016–2025; hard freezes burst pipes
- Federal disaster declarations incl. flooding, Franklin Co.
- 4[6]of 14 total declarations
- Homes built before 1980
- 42%[2]the 8th-highest share of the 15 Columbus-area suburbs we cover
- Households renting
- 29%[2]2020–2024
What the local data means for water damage in Gahanna
Gahanna counts 35,986 residents (2025 estimate), growing at a middle-of-the-pack 0.7% since 2020[3]. It covers 12.4 square miles (2,895 residents per square mile, the 6th densest), sits entirely in Franklin County, in ZIP code 43230[4].
Gahanna mixes 6% of homes built since 2010 and 42% before 1980[2]: new supply lines and water heaters in one house, aging pipe and original valves in the next — so where a leak starts depends a lot on the address.
The entire city sits in ZIP code 43230[7].
Nearest of the other suburbs we track: Whitehall (4.7 mi S), Westerville (6.2 mi N) and Reynoldsburg (7.1 mi SE)[4].
68 flood-insurance claims have come from Gahanna-area ZIP codes (43230) since 1978, and $321,062 has been paid on them (about $5,837 per paid claim)[1]. 1979 was the worst year, with 23 claims. That is the 8th-most of the 15 Columbus-area suburbs we cover; for comparison, Whitehall (102), Westerville (71), and Reynoldsburg (197). Of the 32 claims rated in a flood zone, 22 were in FEMA's high-risk areas (zones A or V) and 10 outside them (zones B, C or X)[1][8] — flooding here is not only a high-risk-zone problem.
By month of loss, Gahanna-area flood claims cluster in January (12), August (14), and September (14) — 40 of 68 dated claims[1].
Within 10 miles of central Gahanna, weather observers filed 58 flood, flash-flood or heavy-rain reports in 2016–2025 (23 flash floods)[5]. Countywide: 4 flood declarations since 2000, latest Severe Winter Storms, Flooding, and Mudslides (DR-1580, 2004)[6]. Nearby: Whitehall (68), Westerville (35), and Reynoldsburg (51).
42% of Gahanna's 14,673 housing units predate 1980[2] — the 8th-highest share of the 15 Columbus-area suburbs we cover (Whitehall (79%), Westerville (46%), and Reynoldsburg (43%)). Expect a mix of original and replaced plumbing.
71% of Gahanna households own their home[2], so most claims and rebuilds here are coordinated by the owner.
Among the 15 suburbs tracked here, Gahanna stands out for the 2nd-most flood reports nearby (58)[5].
How a leak spreads inside a wall
Give a leak time and it travels — outward across the floor, upward into drywall by capillary action.
Gahanna storm calendar
Within 10 miles of Gahanna, 2016–2025: 23 flash-flood reports and 35 flood reports[5]. Peak: 74% in May, July, and August. Busiest year 2017 (12); 1 of 10 years had none. Busiest month July 2017 (11). Latest: flood 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 |
Get water damage help in Gahanna
Requests go to Water damage restoration contractors serving the Gahanna area — ZIP code 43230.
Before reaching out: what a restoration crew does first
Shared walls and ceilings: Gahanna homes by building type
With 68%[2] of homes detached, most Gahanna water-damage jobs stay inside one house — the owner's policy and the owner's call.
After detached houses, the biggest group is attached house (townhouse, rowhouse): 1,515 of 14,673 housing units[2].
| Building type | Units | Share | Margin of error |
|---|---|---|---|
| Detached house | 10,039 | 68.4% | ±524 |
| Attached house (townhouse, rowhouse) | 1,515 | 10.3% | ±372 |
| Duplex (2 units) | 239 | 1.6% | ±143 |
| 3–4 units | 718 | 4.9% | ±242 |
| 5–9 units | 697 | 4.8% | ±227 |
| 10–19 units | 608 | 4.1% | ±195 |
| 20–49 units | 327 | 2.2% | ±128 |
| 50 or more units | 504 | 3.4% | ±135 |
| Boat, RV, van, etc. | 26 | 0.2% | ±43 |
Margins of error are the Census Bureau’s 90% intervals; small categories in small cities are rough.
The Gahanna numbers behind this page
| Measure | Gahanna | Median of 15 | Difference |
|---|---|---|---|
| Flood reports (10 mi) | 58 | 35 | 23 more |
| Median home value | $350,900 | $339,600 | 3% higher |
| NFIP flood claims (area ZIPs) | 68 | 68 | same as median |
| Built before 1980 | 42% | 42% | same as median |
| Median year built | 1985 | 1985 | same as median |
| Renter-occupied | 29% | 29% | same as median |
| Owner-occupied | 71% | 71% | same as median |
Sorted by largest difference. Each median is the middle value across the covered Columbus-area suburbs, from the same sources.
| City | NFIP claims | Flood reports ≤10 mi | Built before 1980 | Renting |
|---|---|---|---|---|
| Gahanna | 68 | 58 | 42% | 29% |
| Whitehall 4.7 mi | 102 | 68 | 79% | 60% |
| Westerville 6.2 mi | 71 | 35 | 46% | 28% |
| Reynoldsburg 7.1 mi | 197 | 51 | 43% | 38% |
| Worthington 8.5 mi | 60 | 43 | 83% | 17% |
| Upper Arlington 10.1 mi | 76 | 46 | 84% | 21% |
| ZIP | Claims | Paid | Busiest year | Outside high-risk zones |
|---|---|---|---|---|
| 43230 | 68 | $321,062 | 1979 (23) | 10 of 32 |
ZIPs extend past city limits. Outside high-risk zones: claims rated in zone B, C or X, of the claims that carry a zone.
| Year | Claims |
|---|---|
| 2026 | 6 |
| 2023 | 1 |
| 2021 | 1 |
| 2019 | 3 |
| 2018 | 1 |
| 2017 | 1 |
| 2014 | 2 |
| 2013 | 1 |
| 2005 | 12 |
| 2004 | 1 |
| 1996 | 1 |
| 1990 | 2 |
| Month | Claims |
|---|---|
| January | 12 |
| February | 4 |
| March | 2 |
| April | 7 |
| May | 3 |
| June | 9 |
| July | 2 |
| August | 14 |
| September | 14 |
| December | 1 |
| 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 |
| ZIP (ZCTA) | Share of Gahanna's land | Share of the ZIP inside the city |
|---|---|---|
| 43230 | 92% | 56% |
water damage questions from Gahanna homeowners
Do I need flood insurance in Gahanna?
Homeowners policies exclude outside floodwater[9], and Gahanna-area ZIPs have 13 NFIP claims in just the last ten years[1].
Which Gahanna ZIP codes do these crews cover?
43230[7], in Franklin County. Nearby pages: Whitehall (4.7 mi), Westerville (6.2 mi), and Reynoldsburg (7.1 mi)[4].
When was the last flood report near Gahanna?
Apr 2, 2024: a flood report 8.5 miles from the city center[5].
Sources
- OpenFEMA NFIP claims
- Census ACS 2020–2024 5-year (keyless bulk)
- Census population estimates, Vintage 2025
- Census Gazetteer 2025
- NOAA Storm Events Database
- OpenFEMA disaster declarations
- Census 2020 ZCTA–place file
- FEMA, Flood Zones (link unverified)
- FEMA FloodSmart (link unverified)
Data pulled Sep 28, 2026. Full citations and method.