Plumbing repair · Renton, Washington
Plumbing repair in Renton, WA
Leak, backed-up drain, no hot water, or a frozen line? The largest share of Renton's homes (20%) was built 2000 to 2009[1]. Request a licensed plumber who works here. Renton, in King County — ZIPs 98057, 98056, 98055, 98059, 98058, counts 104,975 residents (2025 estimate)[2].
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Renton plumbing snapshot: the key figures
- Population (2025 est.)
- 104,975[2]-1.8% since 2020
- County
- King[2]
- Land area
- 23.5 sq mi[3]
- Decade the most homes date from
- 2000 to 2009[1]20% of housing units
- Homes built before 1980
- 39%[1]the 7th-lowest share of the 15 Seattle-area suburbs we cover
- Homes built 1980–1999
- 30%[1]2020–2024
- Homes built 2010 or later
- 11%[1]the 6th-lowest share of the 15 Seattle-area suburbs we cover
- Flood & flash-flood reports within 10 mi
- 2[4]0 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
- FEMA flood-insurance claims, local ZIPs
- 66[5]12 in the last 10 years; 48 paid
- Homes on utility gas heat
- 41%[1]gas piping work usually needs a permit and a licensed installer
What Renton's numbers say about plumbing
Renton is one of the most established suburbs tracked here — 104,975 people (2025 estimate), down just 1.8% since 2020[2]. The city spans 23.5 square miles at 4,459 residents per square mile (the 7th densest) and sits entirely in King County, served by ZIP codes 98057, 98056, 98055, 98059, 98058[3].
With 11% of homes built since 2010 and 39% before 1980[1], Renton's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.
Mail to Renton goes through 5 ZIP codes — 98057 (26% of the city's land), 98056 (23% of the city's land), 98055 (19% of the city's land), 98059 (16% of the city's land), 98058 (16% of the city's land)[6].
The tracked suburbs closest by are Kent (6.2 mi S), Issaquah (8.2 mi NE) and Bellevue (8.4 mi N)[3].
39% of Renton's 42,551 housing units predate 1980 and 11% went up in 2010 or later[1] — the 7th-lowest pre-1980 share of the 15 Seattle-area suburbs we cover; nearby, Kent (39%), Issaquah (17%), and Bellevue (47%) predate 1980. The 30% built in 1980–1999 are at the age where original water heaters and valves get replaced.
The biggest single slice — 20% — was built 2000 to 2009, and the median home dates to 1988[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: 2 flood or flash-flood reports within 10 miles over 2016–2025[4], and FEMA logged 66 flood-insurance claims across Renton's ZIPs[5]. Homes that take water need working drainage, sump pumps and backflow prevention.
41% of homes heat with utility gas, and 46% of households rent[1]. Tenants: report plumbing failures to the landlord in writing.
Finding plumbing help around Renton
Requests go to Plumbing repair contractors serving the Renton area — ZIP codes 98057, 98056, 98055, 98059, 98058.
Before you pick up the phone: before the plumber arrives
Renton by the numbers
| Measure | Renton | Median of 15 | Difference |
|---|---|---|---|
| Flood reports (10 mi) | 2 | 1 | 1 more |
| Built before 1960 | 14.5% | 10.8% | 4 pts higher |
| Built 2010 or later | 11% | 13% | 2 pts lower |
| Renter-occupied | 46% | 45% | 1 pts higher |
| Utility-gas heat | 41% | 40% | about the same |
| Built before 1980 | 39% | 39% | about the same |
| Median year built | 1988 | 1985 | 3 years newer |
Sorted by largest difference. Each median is the middle value across the covered Seattle-area suburbs, from the same sources.
| City | Flood reports | NFIP claims |
|---|---|---|
| Renton | 2 | 66 |
| Kent 6.2 mi | 2 | 60 |
| Issaquah 8.2 mi | 1 | 243 |
| Bellevue 8.4 mi | 3 | 77 |
| Sammamish 10.8 mi | 1 | 27 |
| Auburn 12.1 mi | 0 | 49 |
| ZIP | Claims | Paid | Busiest year |
|---|---|---|---|
| 98057 | 1 | $0 | 2012 (1) |
| 98056 | 2 | $0 | 1986 (1) |
| 98055 | 5 | $14,335 | 2009 (2) |
| 98059 | 4 | $40,265 | 1990 (1) |
| 98058 | 54 | $805,920 | 2009 (11) |
ZIPs extend past city limits.
| Date | Type | Distance |
|---|---|---|
| Dec 5, 2023 | Heavy Rain | 5.3 mi |
| Jan 6, 2022 | Heavy Rain | 4.8 mi |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 266 | 0.6% | ±141 |
| 2010 to 2019 | 4,433 | 10.4% | ±494 |
| 2000 to 2009 | 8,399 | 19.7% | ±601 |
| 1990 to 1999 | 6,914 | 16.2% | ±655 |
| 1980 to 1989 | 5,902 | 13.9% | ±690 |
| 1970 to 1979 | 5,154 | 12.1% | ±606 |
| 1960 to 1969 | 5,320 | 12.5% | ±521 |
| 1950 to 1959 | 3,074 | 7.2% | ±440 |
| 1940 to 1949 | 1,762 | 4.1% | ±350 |
| 1939 or earlier | 1,327 | 3.1% | ±271 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 42,551 |
| Detached single-family | 21,605 (51%) |
| Occupied homes | 40,672 |
| Owner-occupied | 22,106 (54%) |
| Renter-occupied | 18,566 (46%) |
| Median home value | $672,600 |
ACS 2020–2024 estimates.
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Electricity | 22,870 | 56.2% | ±1,010 |
| Utility gas | 16,481 | 40.5% | ±855 |
| Bottled or tank gas (propane, butane, etc.) | 584 | 1.4% | ±264 |
| Fuel oil, kerosene, etc. | 271 | 0.7% | ±113 |
| No fuel used | 229 | 0.6% | ±106 |
| Other fuel | 142 | 0.3% | ±115 |
| Wood | 95 | 0.2% | ±72 |
| ZIP (ZCTA) | Share of Renton's land | Share of the ZIP inside the city |
|---|---|---|
| 98057 | 26% | 100% |
| 98056 | 23% | 71% |
| 98055 | 19% | 100% |
| 98059 | 16% | 23% |
| 98058 | 16% | 20% |
Renton plumbing questions
Are Renton homes likely to have old galvanized pipes?
Only an inspection can say, but age is the clue: 14% were built before 1960 and 39% 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.