Plumbing repair · Littleton, Colorado

Plumbing repair in Littleton, CO

Leak, backed-up drain, no hot water, or a frozen line? The largest share of Littleton's homes (21%) was built 1980 to 1989^[1]. Request a licensed plumber who works here. Littleton, in Arapahoe County and Jefferson County and Douglas County — ZIPs 80120, 80123, counts 46,246 residents (2025 estimate)^[2].

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Littleton at a glance for plumbing

Population (2025 est.): 46,246^[2]+1.3% since 2020
County: Arapahoe / Jefferson / Douglas^[2]city spans more than one county
Land area: 12.6 sq mi^[3]
Population density: 3,665 / sq mi^[2]^[3]
Decade the most homes date from: 1980 to 1989^[1]21% of housing units
Homes built before 1980: 46%^[1]the 5th-highest share of the 15 Denver-area suburbs we cover
Homes built 1980–1999: 33%^[1]2020–2024
Homes built 2010 or later: 10%^[1]the 3rd-lowest share of the 15 Denver-area suburbs we cover
Flood & flash-flood reports within 10 mi: 4^[4]2 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
FEMA flood-insurance claims, local ZIPs: 35^[5]7 in the last 10 years; 16 paid
Homes on utility gas heat: 69%^[1]gas piping work usually needs a permit and a licensed installer

Reading the Littleton data for plumbing

Littleton counts 46,246 residents (2025 estimate), growing at a middle-of-the-pack 1.3% since 2020^[2]. The city spans 12.6 square miles at 3,665 residents per square mile (the 5th densest) and spans Arapahoe County and Jefferson County and Douglas County, served by ZIP codes 80120, 80123^[3].

With 10% of homes built since 2010 and 46% before 1980^[1], Littleton's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.

Littleton is split across 2 ZIP codes: 80120 (65% of the city's land), 80123 (16% of the city's land)^[6].

The closest tracked neighbours are Englewood (4.1 mi N), Centennial (8.3 mi E) and Lakewood (9.1 mi NW)^[3].

46% of Littleton's 21,606 housing units predate 1980 and 10% went up in 2010 or later^[1] — the 5th-highest pre-1980 share of the 15 Denver-area suburbs we cover; nearby, Englewood (68%), Centennial (43%), and Lakewood (56%) predate 1980. Houses that old can still have galvanized supply pipe or cast-iron drains — especially the 20% built before 1960.

The biggest single slice — 21% — was built 1980 to 1989, and the median home dates to 1982^[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: 4 flood or flash-flood reports within 10 miles over 2016–2025^[4], and FEMA logged 35 flood-insurance claims across Littleton's ZIPs^[5]. Homes that take water need working drainage, sump pumps and backflow prevention.

69% of homes heat with utility gas, and 39% of households rent^[1]. Tenants: report plumbing failures to the landlord in writing.

Out of the 15 suburbs on this site, Littleton has the 3rd-lowest share of homes built since 2010 (10%)^[1].

plumbing help in Littleton: what to do next

Plumbing repair contractors taking requests around Littleton cover ZIP codes 80120, 80123.

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Before you pick up the phone: before the plumber arrives

The data underneath this Littleton page

Littleton against the typical suburb we cover (median of 15)^[1]^[4]
Measure	Littleton	Median of 15	Difference
Built before 1960	19.8%	7.6%	12 pts higher
Flood reports (10 mi)	4	6	2 fewer
Built 2010 or later	10%	15%	5 pts lower
Built before 1980	46%	37%	9 pts higher
Renter-occupied	39%	37%	2 pts higher
Utility-gas heat	69%	71%	2 pts lower
Median year built	1982	1987	5 years older

Biggest gaps first. Medians are middle values across the Denver-area suburbs we cover, drawn from the same sources.

How Littleton compares with its nearest neighbours^[4]^[5]^[3]
City	Flood reports	NFIP claims
Littleton	4	35
Englewood 4.1 mi	11	26
Centennial 8.3 mi	8	54
Lakewood 9.1 mi	10	200
Parker 14.3 mi	4	22
Golden 14.6 mi	3	46

Flood-insurance claims by ZIP code, since 1981^[5]
ZIP	Claims	Paid	Busiest year
80120	19	$19,043	1983 (3)
80123	16	$236,941	2015 (3)

ZIPs extend past city limits.

Most recent flood reports within 10 miles^[4]
Date	Type	Distance
Jun 4, 2025	Heavy Rain	9.2 mi
May 25, 2025	Heavy Rain	6.8 mi
Aug 15, 2022	Flash Flood	7.6 mi
Jul 24, 2018	Flash Flood	3.5 mi

When Littleton's 21,606 housing units were built^[1]
Built	Units	Share	Margin of error
2020 or later	276	1.3%	±123
2010 to 2019	1,892	8.8%	±361
2000 to 2009	2,420	11.2%	±321
1990 to 1999	2,589	12.0%	±334
1980 to 1989	4,598	21.3%	±475
1970 to 1979	3,498	16.2%	±414
1960 to 1969	2,051	9.5%	±268
1950 to 1959	3,051	14.1%	±370
1940 to 1949	510	2.4%	±188
1939 or earlier	721	3.3%	±246

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

Littleton housing and households^[1]
Measure	Value
Housing units	21,606
Detached single-family	10,474 (48%)
Occupied homes	20,449
Owner-occupied	12,508 (61%)
Renter-occupied	7,941 (39%)
Median home value	$630,600

ACS 2020–2024 estimates.

How Littleton's 20,449 occupied homes are heated^[1]
Main heating fuel	Homes	Share	Margin of error
Utility gas	14,108	69.0%	±659
Electricity	5,892	28.8%	±497
No fuel used	149	0.7%	±72
Other fuel	147	0.7%	±87
Bottled or tank gas (propane, butane, etc.)	83	0.4%	±54
Solar energy	64	0.3%	±46
Fuel oil, kerosene, etc.	6	0.0%	±10

ZIP code areas covering Littleton^[6]
ZIP (ZCTA)	Share of Littleton's land	Share of the ZIP inside the city
80120	65%	98%
80123	16%	16%

plumbing questions from Littleton homeowners

Are Littleton homes likely to have old galvanized pipes?

Only an inspection can say, but age is the clue: 20% were built before 1960 and 46% before 1980^[1].

Which ZIP codes are covered in Littleton?

80120 and 80123^[6], in Arapahoe County. Nearby suburbs with their own pages: Englewood (4.1 mi), Centennial (8.3 mi), and Lakewood (9.1 mi)^[3].

I rent in Littleton. Who arranges the repair?

39% of occupied Littleton homes are rented^[1], the 5th-highest share of the 15 Denver-area suburbs we cover. Tell your landlord or property manager in writing first; your lease says who arranges repairs.

Sources

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