Water damage restoration · Alpharetta, Georgia
Water damage restoration in Alpharetta, GA
Burst pipe, failed water heater, or storm water? Alpharetta-area ZIPs: 97 flood claims since 1982[1]; 8% of homes built before 1980[2]. Request help from local restoration crews. Alpharetta, in Fulton County — ZIPs 30005, 30009, 30022, 30004, counts 66,921 residents (2025 estimate)[3].
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Alpharetta water damage snapshot: the key figures
- Population (2025 est.)
- 66,921[3]+1.7% since 2020
- County
- Fulton[3]
- Land area
- 26.9 sq mi[4]
- Flood-insurance (NFIP) claims, local ZIPs
- 97 since 1982[1]$1,020,288 paid across 67 claims · ZIP 30005, 30009, 30022, 30004
- Flood & flash-flood reports within 10 mi
- 18[5]2016–2025 · latest Aug 29, 2023
- Federal disaster declarations incl. flooding, Fulton Co.
- 1[6]of 14 total declarations
- Homes built before 1980
- 8%[2]the 4th-lowest share of the 15 Atlanta-area suburbs we cover
- Households renting
- 35%[2]2020–2024
What the local data means for water damage in Alpharetta
Alpharetta counts 66,921 residents (2025 estimate), growing at a middle-of-the-pack 1.7% since 2020[3]. The city spans 26.9 square miles at 2,488 residents per square mile (the 9th densest) and sits entirely in Fulton County, served by ZIP codes 30005, 30009, 30022, 30004[4].
Alpharetta mixes 16% of homes built since 2010 and 8% 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.
Mail to Alpharetta goes through 4 ZIP codes — 30005 (32% of the city's land), 30009 (27% of the city's land), 30022 (24% of the city's land), 30004 (15% of the city's land)[7].
The closest tracked neighbours are Johns Creek (4.7 mi SE), Roswell (5.0 mi SW) and Milton (5.6 mi NW)[4].
97 flood-insurance claims have come from Alpharetta-area ZIP codes (30005, 30009, 30022, 30004) since 1982, and $1,020,288 has been paid on them (about $15,228 per paid claim)[1]. 2009 was the worst year, with 29 claims. That is the 8th-most of the 15 Atlanta-area suburbs we cover; for comparison, Johns Creek (81), Roswell (161), and Milton (15). Of the 97 claims rated in a flood zone, 22 were in FEMA's high-risk areas (zones A or V) and 74 outside them (zones B, C or X), with 1 in undetermined zone D[1][8] — flooding here is not only a high-risk-zone problem.
By month of loss, Alpharetta-area flood claims cluster in July (11), September (37), and December (8) — 56 of 97 dated claims[1].
Within 10 miles of central Alpharetta, weather observers filed 18 flood, flash-flood or heavy-rain reports in 2016–2025 (18 flash floods)[5]. Countywide: 1 flood declaration since 2000, latest Severe Storms and Flooding (DR-1858, 2009)[6]. Nearby: Johns Creek (16), Roswell (21), and Milton (13).
8% of Alpharetta's 26,223 housing units predate 1980[2] — the 4th-lowest share of the 15 Atlanta-area suburbs we cover (Johns Creek (4%), Roswell (22%), and Milton (5%)). In newer houses, check fittings, washer hoses and the water-heater pan first — and any builder warranty.
65% of Alpharetta households own their home[2], so most claims and rebuilds here are coordinated by the owner.
Measured against the 15 suburbs on this site, Alpharetta records the 2nd-highest median home value ($649,000)[2].
How a leak spreads inside a wall
Give a leak time and it travels — outward across the floor, upward into drywall by capillary action.
Alpharetta storm calendar
Within 10 miles of Alpharetta, 2016–2025: 18 flash-flood reports[5]. Peak: 61% in January, February, and July. Busiest year 2023 (6); 4 of 10 years had none. Busiest month February 2020 (5). Latest: flash-flood report, Aug 29, 2023, 9.2 mi out.
| Month | Flash flood | Flood | Heavy rain | All |
|---|---|---|---|---|
| Jan | 3 | – | – | 3 |
| Feb | 5 | – | – | 5 |
| Jun | 1 | – | – | 1 |
| Jul | 3 | – | – | 3 |
| Aug | 3 | – | – | 3 |
| Sep | 2 | – | – | 2 |
| Nov | 1 | – | – | 1 |
Get water damage help in Alpharetta
Requests go to Water damage restoration contractors serving the Alpharetta area — ZIP codes 30005, 30009, 30022, 30004.
Before you call: what a restoration crew does first
Shared walls and ceilings: Alpharetta homes by building type
44%[2] of Alpharetta's homes share walls, floors or ceilings with a neighbour (multi-unit buildings alone: 33%, the 8th-highest multi-unit share of the 15 Atlanta-area suburbs we cover). Water crosses those lines: in an attached or stacked unit, tell the neighbour and the association or landlord right away, and check whose policy covers which part of the damage.
After detached houses, the biggest group is 50 or more units: 3,021 of 26,223 housing units[2].
| Building type | Units | Share | Margin of error |
|---|---|---|---|
| Detached house | 14,553 | 55.5% | ±694 |
| Attached house (townhouse, rowhouse) | 2,936 | 11.2% | ±415 |
| Duplex (2 units) | 30 | 0.1% | ±33 |
| 3–4 units | 698 | 2.7% | ±264 |
| 5–9 units | 1,455 | 5.5% | ±253 |
| 10–19 units | 2,583 | 9.9% | ±424 |
| 20–49 units | 867 | 3.3% | ±235 |
| 50 or more units | 3,021 | 11.5% | ±463 |
| Mobile home | 40 | 0.2% | ±45 |
| Boat, RV, van, etc. | 40 | 0.2% | ±64 |
Margins of error are the Census Bureau’s 90% intervals; small categories in small cities are rough.
Alpharetta by the numbers
| Measure | Alpharetta | Median of 15 | Difference |
|---|---|---|---|
| Built before 1980 | 8% | 21% | 14 pts lower |
| Median home value | $649,000 | $449,500 | 44% higher |
| Flood reports (10 mi) | 18 | 15 | 3 more |
| Renter-occupied | 35% | 41% | 6 pts lower |
| Owner-occupied | 65% | 59% | 6 pts higher |
| Median year built | 1996 | 1994 | 2 years newer |
| NFIP flood claims (area ZIPs) | 97 | 97 | same as median |
Biggest gaps first. Medians are middle values across the Atlanta-area suburbs we cover, drawn from the same sources.
| City | NFIP claims | Flood reports ≤10 mi | Built before 1980 | Renting |
|---|---|---|---|---|
| Alpharetta | 97 | 18 | 8% | 35% |
| Johns Creek 4.7 mi | 81 | 16 | 4% | 20% |
| Roswell 5.0 mi | 161 | 21 | 22% | 28% |
| Milton 5.6 mi | 15 | 13 | 5% | 27% |
| Duluth 8.5 mi | 94 | 15 | 12% | 43% |
| Dunwoody 9.2 mi | 100 | 35 | 44% | 44% |
| ZIP | Claims | Paid | Busiest year | Outside high-risk zones |
|---|---|---|---|---|
| 30005 | 12 | $169,224 | 2009 (3) | 11 of 12 |
| 30009 | 32 | $364,509 | 2009 (7) | 15 of 32 |
| 30022 | 38 | $342,570 | 2009 (13) | 36 of 38 |
| 30004 | 15 | $143,985 | 2009 (6) | 12 of 15 |
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 | 4 |
| 2025 | 1 |
| 2023 | 3 |
| 2021 | 6 |
| 2020 | 7 |
| 2019 | 3 |
| 2018 | 6 |
| 2016 | 2 |
| 2015 | 3 |
| 2014 | 2 |
| 2013 | 10 |
| 2012 | 2 |
| Month | Claims |
|---|---|
| January | 7 |
| February | 7 |
| April | 4 |
| May | 7 |
| June | 3 |
| July | 11 |
| August | 5 |
| September | 37 |
| October | 4 |
| November | 4 |
| December | 8 |
| Date | Type | Distance |
|---|---|---|
| Aug 29, 2023 | Flash Flood | 9.2 mi |
| Aug 29, 2023 | Flash Flood | 7.0 mi |
| Aug 29, 2023 | Flash Flood | 9.2 mi |
| Jan 4, 2023 | Flash Flood | 3.6 mi |
| Jan 4, 2023 | Flash Flood | 4.8 mi |
| Jan 4, 2023 | Flash Flood | 3.0 mi |
| Sep 8, 2021 | Flash Flood | 1.3 mi |
| Sep 7, 2021 | Flash Flood | 7.5 mi |
| ZIP (ZCTA) | Share of Alpharetta's land | Share of the ZIP inside the city |
|---|---|---|
| 30005 | 32% | 54% |
| 30009 | 27% | 80% |
| 30022 | 24% | 27% |
| 30004 | 15% | 7% |
water damage questions from Alpharetta homeowners
Do I need flood insurance in Alpharetta?
Homeowners policies exclude outside floodwater[9], and Alpharetta-area ZIPs have 32 NFIP claims in just the last ten years[1].
Which Alpharetta ZIP codes do these crews cover?
30005, 30009, 30022, and 30004[7], in Fulton County. Nearby pages: Johns Creek (4.7 mi), Roswell (5.0 mi), and Milton (5.6 mi)[4].
Which Alpharetta ZIP code has the most flood claims?
30022, with 38 NFIP claims and $342,570 paid[1].
When was the last flood report near Alpharetta?
Aug 29, 2023: a flash flood report 9.2 miles from the city center[5].
My Alpharetta home is fairly new — could the plumbing fixtures and water heater still be under warranty?
Possibly: 16% of Alpharetta's housing units were built in 2010 or later[2], the 5th-highest share of the 15 Atlanta-area suburbs we cover. Check your closing paperwork for warranties before paying for a repair.
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.