Water damage restoration · Rialto, California
Water damage restoration in Rialto, CA
Burst pipe, failed water heater, or storm water? Rialto-area ZIPs: 6 flood claims since 1978[1]; 44% of homes built before 1980[2]. Request help from local restoration crews. Rialto, in San Bernardino County — ZIPs 92376, 92377, 92316, counts 106,554 residents (2025 estimate)[3].
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Rialto water damage snapshot: the key figures
- Population (2025 est.)
- 106,554[3]+2.5% since 2020
- County
- San Bernardino[3]
- Land area
- 24.1 sq mi[4]
- Flood-insurance (NFIP) claims, local ZIPs
- 6 since 1978[1]$22,138 paid across 6 claims · ZIP 92376, 92377, 92316
- Flood & flash-flood reports within 10 mi
- 51[5]2016–2025 · latest Dec 24, 2025
- Federal disaster declarations incl. flooding, San Bernardino Co.
- 9[6]of 40 total declarations
- Homes built before 1980
- 44%[2]the 3rd-highest share of the 15 Inland Empire suburbs we cover
- Households renting
- 34%[2]2020–2024
What the local data means for water damage in Rialto
Rialto is one of the most established suburbs tracked here — 106,554 people (2025 estimate), up just 2.5% since 2020[3]. It covers 24.1 square miles (4,420 residents per square mile, the 3rd densest), sits entirely in San Bernardino County, in ZIP codes 92376, 92377, 92316[4].
Rialto mixes 4% of homes built since 2010 and 44% 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 Rialto goes through 3 ZIP codes — 92376 (51% of the city's land), 92377 (26% of the city's land), 92316 (16% of the city's land)[7].
Nearest of the other suburbs we track: Fontana (4.2 mi W), Rancho Cucamonga (10.2 mi W) and Redlands (13.3 mi E)[4].
6 flood-insurance claims have come from Rialto-area ZIP codes (92376, 92377, 92316) since 1978, and $22,138 has been paid on them (about $3,690 per paid claim)[1]. 1983 was the worst year, with 2 claims. That is the 3rd-fewest of the 15 Inland Empire suburbs we cover; for comparison, Fontana (23), Rancho Cucamonga (47), and Redlands (17). Most jobs here start inside the house. Of the 5 claims rated in a flood zone, 0 were in FEMA's high-risk areas (zones A or V) and 5 outside them (zones B, C or X)[1][8] — flooding here is not only a high-risk-zone problem.
By month of loss, Rialto-area flood claims cluster in January (1), February (2), and March (1) — 4 of 6 dated claims[1].
Within 10 miles of central Rialto, weather observers filed 51 flood, flash-flood or heavy-rain reports in 2016–2025 (11 flash floods)[5]. Countywide: 9 flood declarations since 2000, latest Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (DR-4699, 2023)[6]. Nearby: Fontana (53), Rancho Cucamonga (51), and Redlands (27).
44% of Rialto's 27,973 housing units predate 1980[2] — the 3rd-highest share of the 15 Inland Empire suburbs we cover (Fontana (28%), Rancho Cucamonga (29%), and Redlands (58%)). Aging supply lines and valves are the usual hidden-leak suspects in houses that old.
66% of Rialto households own their home[2], so most claims and rebuilds here are coordinated by the owner.
Measured against the 15 suburbs on this site, Rialto records the 2nd-most flood reports nearby (51, tied with Rancho Cucamonga)[5], the 3rd-fewest NFIP flood claims (6, tied with Victorville)[1], the 3rd-highest pre-1980 housing share (44%)[2], and the 3rd-oldest housing (by median year built) (1982)[2].
How a leak spreads inside a wall
Leaked water spreads outward and wicks up drywall the longer it runs.
Rialto storm calendar
Within 10 miles of Rialto, 2016–2025: 11 flash-flood reports, 22 flood reports, and 18 heavy-rain reports[5]. Peak: 63% in January, February, and March. Busiest year 2025 (14). Busiest month February 2025 (12). Latest: flash-flood report, Dec 24, 2025, 6.5 mi out.
| Month | Flash flood | Flood | Heavy rain | All |
|---|---|---|---|---|
| Jan | 3 | 3 | 1 | 7 |
| Feb | 1 | 7 | 10 | 18 |
| Mar | 1 | 5 | 1 | 7 |
| May | – | – | 1 | 1 |
| Jul | – | – | 1 | 1 |
| Aug | 1 | 1 | – | 2 |
| Sep | 2 | 1 | 1 | 4 |
| Nov | 2 | 2 | 1 | 5 |
| Dec | 1 | 3 | 2 | 6 |
Finding water damage help around Rialto
Your request reaches Water damage restoration contractors who serve Rialto (ZIP codes 92376, 92377, 92316).
Before you pick up the phone: what a restoration crew does first
Shared walls and ceilings: Rialto homes by building type
With 69%[2] of homes detached, most Rialto water-damage jobs stay inside one house — the owner's policy and the owner's call.
After detached houses, the biggest group is mobile home: 2,201 of 27,973 housing units[2].
Rialto also has 2,201 mobile homes (7.9%); for a leak under one, ask for a crew that works on manufactured homes.
| Building type | Units | Share | Margin of error |
|---|---|---|---|
| Detached house | 19,298 | 69.0% | ±647 |
| Attached house (townhouse, rowhouse) | 605 | 2.2% | ±211 |
| Duplex (2 units) | 340 | 1.2% | ±208 |
| 3–4 units | 1,442 | 5.2% | ±278 |
| 5–9 units | 921 | 3.3% | ±312 |
| 10–19 units | 533 | 1.9% | ±178 |
| 20–49 units | 453 | 1.6% | ±141 |
| 50 or more units | 2,180 | 7.8% | ±381 |
| Mobile home | 2,201 | 7.9% | ±340 |
Margins of error are the Census Bureau’s 90% intervals; small categories in small cities are rough.
The data underneath this Rialto page
| Measure | Rialto | Median of 15 | Difference |
|---|---|---|---|
| Built before 1980 | 44% | 25% | 19 pts higher |
| NFIP flood claims (area ZIPs) | 6 | 21 | 15 fewer |
| Flood reports (10 mi) | 51 | 34 | 17 more |
| Median home value | $487,900 | $618,900 | 21% lower |
| Renter-occupied | 34% | 36% | 2 pts lower |
| Owner-occupied | 66% | 64% | 2 pts higher |
| Median year built | 1982 | 1989 | 7 years older |
Biggest gaps first. Medians are middle values across the Inland Empire suburbs we cover, drawn from the same sources.
| City | NFIP claims | Flood reports ≤10 mi | Built before 1980 | Renting |
|---|---|---|---|---|
| Rialto | 6 | 51 | 44% | 34% |
| Fontana 4.2 mi | 23 | 53 | 28% | 33% |
| Rancho Cucamonga 10.2 mi | 47 | 51 | 29% | 38% |
| Redlands 13.3 mi | 17 | 27 | 58% | 43% |
| Ontario 13.6 mi | 21 | 45 | 50% | 42% |
| Eastvale 15.4 mi | 29 | 46 | 2% | 22% |
| ZIP | Claims | Paid | Busiest year | Outside high-risk zones |
|---|---|---|---|---|
| 92376 | 4 | $6,479 | 1983 (2) | 3 of 3 |
| 92377 | 1 | $655 | 1998 (1) | 1 of 1 |
| 92316 | 1 | $15,004 | 2003 (1) | 1 of 1 |
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 |
|---|---|
| 2003 | 1 |
| 1998 | 1 |
| 1984 | 1 |
| 1983 | 2 |
| 1978 | 1 |
| Month | Claims |
|---|---|
| January | 1 |
| February | 2 |
| March | 1 |
| July | 1 |
| November | 1 |
| Date | Type | Distance |
|---|---|---|
| Dec 24, 2025 | Flash Flood | 6.5 mi |
| Nov 16, 2025 | Flood | 7.8 mi |
| Feb 14, 2025 | Heavy Rain | 9.0 mi |
| Feb 14, 2025 | Heavy Rain | 3.4 mi |
| Feb 14, 2025 | Heavy Rain | 6.5 mi |
| Feb 13, 2025 | Heavy Rain | 7.1 mi |
| Feb 13, 2025 | Flood | 5.5 mi |
| Feb 13, 2025 | Flood | 7.4 mi |
| ZIP (ZCTA) | Share of Rialto's land | Share of the ZIP inside the city |
|---|---|---|
| 92376 | 51% | 92% |
| 92377 | 26% | 88% |
| 92316 | 16% | 32% |
Rialto water damage questions
Do I need flood insurance in Rialto?
Homeowners policies exclude outside floodwater[9], and Rialto-area ZIPs have 0 NFIP claims in just the last ten years[1].
Which Rialto ZIP codes do these crews cover?
92376, 92377, and 92316[7], in San Bernardino County. Nearby pages: Fontana (4.2 mi), Rancho Cucamonga (10.2 mi), and Redlands (13.3 mi)[4].
Which Rialto ZIP code has the most flood claims?
92376, with 4 NFIP claims and $6,479 paid[1].
When was the last flood report near Rialto?
Dec 24, 2025: a flash flood report 6.5 miles from the city center[5].
A lot of Rialto homes predate 1980 — what does that mean for plumbing fixtures and water heater work?
44% of Rialto's housing units were built before 1980, 18.7% before 1960[2] — the 3rd-highest share of the 15 Inland Empire suburbs we cover. Older supply lines and original shut-off valves are common failure points — know where your main shut-off is before you need it.
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.