Plumbing repair · Chino Hills, California
Plumbing repair in Chino Hills, CA
Leak, backed-up drain, no hot water, or a frozen line? The largest share of Chino Hills's homes (32%) was built 1980 to 1989[1]. Request a licensed plumber who works here. Chino Hills, in San Bernardino County — ZIP 91709, counts 77,519 residents (2025 estimate)[2].
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The Chino Hills plumbing picture in brief
- Population (2025 est.)
- 77,519[2]-1.2% since 2020
- County
- San Bernardino[2]
- Land area
- 44.8 sq mi[3]
- Decade the most homes date from
- 1980 to 1989[1]32% of housing units
- Homes built before 1980
- 17%[1]the 4th-lowest share of the 15 Inland Empire suburbs we cover
- Homes built 1980–1999
- 60%[1]2020–2024
- Homes built 2010 or later
- 10%[1]the 7th-lowest share of the 15 Inland Empire suburbs we cover
- Flood & flash-flood reports within 10 mi
- 35[4]11 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
- FEMA flood-insurance claims, local ZIPs
- 3[5]0 in the last 10 years; 1 paid
- Homes on utility gas heat
- 77%[1]gas piping work usually needs a permit and a licensed installer
Reading the Chino Hills data for plumbing
Chino Hills is one of the most established suburbs tracked here — 77,519 people (2025 estimate), down just 1.2% since 2020[2]. On the map that's 44.8 square miles holding 1,731 residents per square mile, the 15th densest of the suburbs here; it sits entirely in San Bernardino County, with ZIP code 91709[3].
With 10% of homes built since 2010 and 17% before 1980[1], Chino Hills's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.
91709 is the city's single ZIP code[6].
The tracked suburbs closest by are Chino (4.0 mi NE), Eastvale (8.3 mi E) and Ontario (9.4 mi NE)[3].
17% of Chino Hills's 25,885 housing units predate 1980 and 10% went up in 2010 or later[1] — the 4th-lowest pre-1980 share of the 15 Inland Empire suburbs we cover; nearby, Chino (38%), Eastvale (2%), and Ontario (50%) predate 1980. The 60% built in 1980–1999 are at the age where original water heaters and valves get replaced.
The biggest single slice — 32% — was built 1980 to 1989, and the median home dates to 1990[1]. Neighbours from the same era tend to hit the same plumbing problems at the same time.
Water from the sky is plumbing work too: 35 flood or flash-flood reports within 10 miles over 2016–2025[4], and FEMA logged 3 flood-insurance claims across Chino Hills's ZIPs[5]. Homes that take water need working drainage, sump pumps and backflow prevention.
77% of homes heat with utility gas, and 31% of households rent[1].
Chino Hills storm calendar
Within 10 miles of Chino Hills, 2016–2025: 11 flash-flood reports and 24 flood or heavy-rain reports[4]. Peak: spread out; March, May, and December held 57%. Busiest year 2021 (6); 1 of 10 years had none. Busiest month December 2021 (5). Latest: flood or heavy-rain report, Feb 14, 2025, 9.7 mi out.
| Month | Flash flood | Flood & heavy rain | All |
|---|---|---|---|
| Jan | 2 | 3 | 5 |
| Feb | 1 | 3 | 4 |
| Mar | 1 | 6 | 7 |
| Apr | 1 | 1 | 2 |
| May | 4 | 2 | 6 |
| Aug | 1 | 1 | 2 |
| Nov | – | 2 | 2 |
| Dec | 1 | 6 | 7 |
Get plumbing help in Chino Hills
Plumbing repair contractors taking requests around Chino Hills cover ZIP code 91709.
Before reaching out: before the plumber arrives
The Chino Hills numbers behind this page
| Measure | Chino Hills | Median of 15 | Difference |
|---|---|---|---|
| Built before 1960 | 3.6% | 6.5% | 3 pts lower |
| Built before 1980 | 17% | 25% | 7 pts lower |
| Renter-occupied | 31% | 36% | 5 pts lower |
| Flood reports (10 mi) | 35 | 34 | 1 more |
| Built 2010 or later | 10% | 10% | about the same |
| Utility-gas heat | 77% | 76% | 1 pts higher |
| Median year built | 1990 | 1989 | 1 year newer |
Largest differences first. Medians are the middle value across the covered Inland Empire suburbs, from the same sources.
| City | Flood reports | NFIP claims |
|---|---|---|
| Chino Hills | 35 | 3 |
| Chino 4.0 mi | 44 | 5 |
| Eastvale 8.3 mi | 46 | 29 |
| Ontario 9.4 mi | 45 | 21 |
| Corona 10.8 mi | 34 | 40 |
| Rancho Cucamonga 15.8 mi | 51 | 47 |
| ZIP | Claims | Paid | Busiest year |
|---|---|---|---|
| 91709 | 3 | $3,724 | 1998 (2) |
ZIPs extend past city limits.
| Date | Type | Distance |
|---|---|---|
| Feb 14, 2025 | Heavy Rain | 9.7 mi |
| Feb 13, 2025 | Flood | 6.6 mi |
| Feb 13, 2025 | Heavy Rain | 5.0 mi |
| Mar 2, 2024 | Heavy Rain | 6.0 mi |
| Feb 4, 2024 | Flash Flood | 5.9 mi |
| Aug 20, 2023 | Flash Flood | 7.9 mi |
| Aug 19, 2023 | Heavy Rain | 6.0 mi |
| Mar 14, 2023 | Flash Flood | 5.9 mi |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 103 | 0.4% | ±65 |
| 2010 to 2019 | 2,494 | 9.6% | ±363 |
| 2000 to 2009 | 3,229 | 12.5% | ±436 |
| 1990 to 1999 | 7,359 | 28.4% | ±616 |
| 1980 to 1989 | 8,248 | 31.9% | ±604 |
| 1970 to 1979 | 2,433 | 9.4% | ±376 |
| 1960 to 1969 | 1,092 | 4.2% | ±320 |
| 1950 to 1959 | 518 | 2.0% | ±192 |
| 1940 to 1949 | 243 | 0.9% | ±117 |
| 1939 or earlier | 166 | 0.6% | ±89 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 25,885 |
| Detached single-family | 19,443 (75%) |
| Occupied homes | 25,340 |
| Owner-occupied | 17,524 (69%) |
| Renter-occupied | 7,816 (31%) |
| Median home value | $874,900 |
ACS 2020–2024 estimates.
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Utility gas | 19,490 | 76.9% | ±707 |
| Electricity | 4,865 | 19.2% | ±602 |
| Bottled or tank gas (propane, butane, etc.) | 603 | 2.4% | ±160 |
| No fuel used | 223 | 0.9% | ±139 |
| Solar energy | 144 | 0.6% | ±64 |
| Wood | 15 | 0.1% | ±25 |
| ZIP (ZCTA) | Share of Chino Hills's land | Share of the ZIP inside the city |
|---|---|---|
| 91709 | 100% | 100% |
Chino Hills plumbing questions
Are Chino Hills homes likely to have old galvanized pipes?
Only an inspection can say, but age is the clue: 4% were built before 1960 and 17% before 1980[1].
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.