Plumbing repair · Bothell, Washington

Plumbing repair in Bothell, WA

Leak, backed-up drain, no hot water, or a frozen line? The largest share of Bothell's homes (20%) was built 1980 to 1989^[1]. Request a licensed plumber who works here. Bothell, in King County and Snohomish County — ZIPs 98011, 98021, counts 52,199 residents (2025 estimate)^[2].

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Bothell plumbing snapshot: the key figures

Population (2025 est.): 52,199^[2]+8.4% since 2020
County: King / Snohomish^[2]city spans more than one county
Land area: 13.6 sq mi^[3]
Population density: 3,828 / sq mi^[2]^[3]
Decade the most homes date from: 1980 to 1989^[1]20% of housing units
Homes built before 1980: 27%^[1]the 4th-lowest share of the 15 Seattle-area suburbs we cover
Homes built 1980–1999: 34%^[1]2020–2024
Homes built 2010 or later: 24%^[1]the 3rd-highest share of the 15 Seattle-area suburbs we cover
Flood & flash-flood reports within 10 mi: 3^[4]0 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
FEMA flood-insurance claims, local ZIPs: 15^[5]4 in the last 10 years; 9 paid
Homes on utility gas heat: 47%^[1]gas piping work usually needs a permit and a licensed installer

Reading the Bothell data for plumbing

Bothell is one of the fastest-growing Seattle-metro suburbs tracked here: 52,199 people (2025 estimate), up 8.4% since 2020^[2]. The city spans 13.6 square miles at 3,828 residents per square mile (the 9th densest) and spans King County and Snohomish County, served by ZIP codes 98011, 98021^[3].

With 24% of homes built since 2010 and 27% before 1980^[1], Bothell's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.

Bothell is split across 2 ZIP codes: 98011 (52% of the city's land), 98021 (46% of the city's land)^[6].

The tracked suburbs closest by are Kirkland (5.3 mi S), Lynnwood (5.9 mi NW) and Edmonds (7.4 mi W)^[3].

27% of Bothell's 20,533 housing units predate 1980 and 24% went up in 2010 or later^[1] — the 4th-lowest pre-1980 share of the 15 Seattle-area suburbs we cover; nearby, Kirkland (44%), Lynnwood (53%), and Edmonds (61%) predate 1980. New-construction problems are usually fittings, supply lines, water-heater installs and drain slopes, not worn-out pipe.

The biggest single slice — 20% — was built 1980 to 1989, and the median home dates to 1992^[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: 3 flood or flash-flood reports within 10 miles over 2016–2025^[4], and FEMA logged 15 flood-insurance claims across Bothell's ZIPs^[5]. Homes that take water need working drainage, sump pumps and backflow prevention.

47% of homes heat with utility gas, and 35% of households rent^[1].

Out of the 15 suburbs on this site, Bothell has the most flood reports nearby (3, tied with 3 other suburbs)^[4], the 3rd-highest share of homes built since 2010 (24%)^[1], and the 3rd-lowest renter share (35%)^[1].

Finding plumbing help around Bothell

Plumbing repair contractors taking requests around Bothell cover ZIP codes 98011, 98021.

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Before you pick up the phone: before the plumber arrives

The data underneath this Bothell page

Bothell against the typical suburb we cover (median of 15)^[4]^[1]
Measure	Bothell	Median of 15	Difference
Flood reports (10 mi)	3	1	2 more
Built 2010 or later	24%	13%	11 pts higher
Built before 1960	5.3%	10.8%	5 pts lower
Built before 1980	27%	39%	12 pts lower
Renter-occupied	35%	45%	10 pts lower
Utility-gas heat	47%	40%	6 pts higher
Median year built	1992	1985	7 years newer

Largest differences first. Medians are the middle value across the covered Seattle-area suburbs, from the same sources.

How Bothell compares with its nearest neighbours^[4]^[5]^[3]
City	Flood reports	NFIP claims
Bothell	3	15
Kirkland 5.3 mi	3	29
Lynnwood 5.9 mi	0	46
Edmonds 7.4 mi	2	32
Redmond 7.8 mi	3	17
Bellevue 12.3 mi	3	77

Flood-insurance claims by ZIP code, since 1978^[5]
ZIP	Claims	Paid	Busiest year
98011	7	$17,750	2023 (3)
98021	8	$218,254	1980 (2)

ZIPs extend past city limits.

Most recent flood reports within 10 miles^[4]
Date	Type	Distance
Dec 5, 2023	Heavy Rain	6.5 mi
Dec 4, 2023	Heavy Rain	6.5 mi
Jan 12, 2021	Flood	7.7 mi

When Bothell's 20,533 housing units were built^[1]
Built	Units	Share	Margin of error
2020 or later	1,052	5.1%	±325
2010 to 2019	3,778	18.4%	±418
2000 to 2009	3,165	15.4%	±370
1990 to 1999	3,000	14.6%	±392
1980 to 1989	4,023	19.6%	±519
1970 to 1979	2,613	12.7%	±375
1960 to 1969	1,808	8.8%	±290
1950 to 1959	552	2.7%	±145
1940 to 1949	236	1.1%	±153
1939 or earlier	306	1.5%	±133

ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.

Bothell housing and households^[1]
Measure	Value
Housing units	20,533
Detached single-family	11,070 (54%)
Occupied homes	19,448
Owner-occupied	12,738 (65%)
Renter-occupied	6,710 (35%)
Median home value	$925,100

ACS 2020–2024 estimates.

How Bothell's 19,448 occupied homes are heated^[1]
Main heating fuel	Homes	Share	Margin of error
Electricity	9,925	51.0%	±604
Utility gas	9,050	46.5%	±509
Bottled or tank gas (propane, butane, etc.)	153	0.8%	±88
Fuel oil, kerosene, etc.	147	0.8%	±97
Wood	119	0.6%	±69
No fuel used	36	0.2%	±38
Solar energy	18	0.1%	±29

ZIP code areas covering Bothell^[6]
ZIP (ZCTA)	Share of Bothell's land	Share of the ZIP inside the city
98011	52%	100%
98021	46%	62%

plumbing questions from Bothell homeowners

Are Bothell homes likely to have old galvanized pipes?

Only an inspection can say, but age is the clue: 5% were built before 1960 and 27% before 1980^[1].

Which ZIP codes are covered in Bothell?

98011 and 98021^[6], in King County. Nearby suburbs with their own pages: Kirkland (5.3 mi), Lynnwood (5.9 mi), and Edmonds (7.4 mi)^[3].

My Bothell home is fairly new — could the plumbing and water heater still be under warranty?

Possibly: 24% of Bothell's housing units were built in 2010 or later^[1], the 3rd-highest share of the 15 Seattle-area suburbs we cover. Check your closing paperwork for warranties before paying for a repair.

Sources

Data pulled Sep 28, 2026. Full citations and method.