Plumbing repair · Leander, Texas
Plumbing repair in Leander, TX
Leak, backed-up drain, no hot water, or a frozen line? The largest share of Leander's homes (45%) was built 2010 to 2019[1]. Request a licensed plumber who works here. Leander, in Williamson County and Travis County — ZIP 78641, counts 91,132 residents (2025 estimate)[2].
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The Leander plumbing picture in brief
- Population (2025 est.)
- 91,132[2]+53.8% since 2020
- County
- Williamson / Travis[2]city spans more than one county
- Land area
- 38.8 sq mi[3]
- Decade the most homes date from
- 2010 to 2019[1]45% of housing units
- Homes built before 1980
- 3%[1]the 3rd-lowest share of the 15 Austin-area suburbs we cover
- Homes built 1980–1999
- 13%[1]2020–2024
- Homes built 2010 or later
- 63%[1]the 4th-highest share of the 15 Austin-area suburbs we cover
- Winter-storm & freeze days, williamson zone
- 23[4]2016–2025
- Flood & flash-flood reports within 10 mi
- 20[4]20 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
- FEMA flood-insurance claims, local ZIPs
- 104[5]34 in the last 10 years; 81 paid
Reading the Leander data for plumbing
Leander counts 91,132 residents (2025 estimate), growing at a middle-of-the-pack 53.8% since 2020[2]. It covers 38.8 square miles (2,349 residents per square mile, the 7th densest), spans Williamson County and Travis County, in ZIP code 78641[3].
With 63% of homes built since 2010 and 3% before 1980[1], Leander's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.
One ZIP code covers the whole city: 78641[7].
The tracked suburbs closest by are Cedar Park (5.1 mi SE), Liberty Hill (6.7 mi NW) and Lago Vista (11.4 mi SW)[3].
3% of Leander's 27,000 housing units predate 1980 and 63% went up in 2010 or later[1] — the 3rd-lowest pre-1980 share of the 15 Austin-area suburbs we cover; nearby, Cedar Park (6%), Liberty Hill (6%), and Lago Vista (14%) predate 1980. New-construction problems are usually fittings, supply lines, water-heater installs and drain slopes, not worn-out pipe.
The biggest single slice — 45% — was built 2010 to 2019, and the median home dates to 2013[1]. Neighbours from the same era tend to hit the same plumbing problems at the same time.
Freeze risk: the williamson forecast zone logged 23 winter-storm, ice or hard-freeze days in 2016–2025, including February 2021; the latest was Feb 22, 2025[4].
Water from the sky is plumbing work too: 20 flood or flash-flood reports within 10 miles over 2016–2025[4], and FEMA logged 104 flood-insurance claims across Leander's ZIPs[5]. Homes that take water need working drainage, sump pumps and backflow prevention.
56% of homes heat with utility gas, and 27% of households rent[1].
Measured against the 15 suburbs on this site, Leander records the highest gas-heat share (56%)[1], the 3rd-lowest pre-1980 housing share (3%)[1], and the 3rd-newest housing (by median year built) (2013, tied with Dripping Springs)[1].
Get plumbing help in Leander
Your request reaches Plumbing repair contractors who serve Leander (ZIP code 78641).
Before reaching out: before the plumber arrives
The Leander numbers behind this page
| Measure | Leander | Median of 15 | Difference |
|---|---|---|---|
| Built before 1960 | 0.4% | 1.5% | 1 pts lower |
| Utility-gas heat | 56% | 37% | 19 pts higher |
| Built before 1980 | 3% | 4% | 2 pts lower |
| Built 2010 or later | 63% | 50% | 13 pts higher |
| Flood reports (10 mi) | 20 | 17 | 3 more |
| Renter-occupied | 27% | 31% | 4 pts lower |
| Median year built | 2013 | 2010 | 3 years newer |
Largest differences first. Medians are the middle value across the covered Austin-area suburbs, from the same sources.
| City | Flood reports | NFIP claims | Freeze days |
|---|---|---|---|
| Leander | 20 | 104 | 23 |
| Cedar Park 5.1 mi | 27 | 61 | 23 |
| Liberty Hill 6.7 mi | 17 | 38 | 23 |
| Lago Vista 11.4 mi | 3 | 139 | 22 |
| Georgetown 11.7 mi | 10 | 128 | 23 |
| Round Rock 12.3 mi | 20 | 310 | 23 |
| ZIP | Claims | Paid | Busiest year |
|---|---|---|---|
| 78641 | 104 | $3,852,524 | 2025 (21) |
ZIPs extend past city limits.
| Date | Type | Distance |
|---|---|---|
| Jul 5, 2025 | Flash Flood | 9.4 mi |
| Jul 5, 2025 | Flash Flood | 3.5 mi |
| Jul 5, 2025 | Flash Flood | 3.2 mi |
| Jul 5, 2025 | Flash Flood | 3.4 mi |
| Jul 5, 2025 | Flash Flood | 5.3 mi |
| Jul 5, 2025 | Flash Flood | 6.0 mi |
| Jul 5, 2025 | Flash Flood | 7.5 mi |
| Jul 5, 2025 | Flash Flood | 9.8 mi |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 4,669 | 17.3% | ±611 |
| 2010 to 2019 | 12,228 | 45.3% | ±752 |
| 2000 to 2009 | 5,975 | 22.1% | ±614 |
| 1990 to 1999 | 2,073 | 7.7% | ±348 |
| 1980 to 1989 | 1,371 | 5.1% | ±281 |
| 1970 to 1979 | 351 | 1.3% | ±146 |
| 1960 to 1969 | 223 | 0.8% | ±120 |
| 1950 to 1959 | 0 | 0.0% | ±35 |
| 1940 to 1949 | 31 | 0.1% | ±39 |
| 1939 or earlier | 79 | 0.3% | ±54 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 27,000 |
| Detached single-family | 22,267 (82%) |
| Occupied homes | 26,326 |
| Owner-occupied | 19,323 (73%) |
| Renter-occupied | 7,003 (27%) |
| Median home value | $506,200 |
ACS 2020–2024 estimates.
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Utility gas | 14,676 | 55.7% | ±797 |
| Electricity | 10,910 | 41.4% | ±785 |
| Bottled or tank gas (propane, butane, etc.) | 501 | 1.9% | ±198 |
| Solar energy | 81 | 0.3% | ±73 |
| Other fuel | 68 | 0.3% | ±94 |
| No fuel used | 67 | 0.3% | ±67 |
| Wood | 23 | 0.1% | ±40 |
| ZIP (ZCTA) | Share of Leander's land | Share of the ZIP inside the city |
|---|---|---|
| 78641 | 97% | 29% |
Dated heat and freeze records for the WILLIAMSON forecast zone: see the county list.
Leander plumbing questions
Are Leander homes likely to have old galvanized pipes?
Only an inspection can say, but age is the clue: 0% were built before 1960 and 3% before 1980[1].
How often do pipes freeze in Leander?
The record for Leander's forecast zone shows 23 winter-storm or freeze days over 2016–2025, in 9 different years[4].
Which ZIP codes are covered in Leander?
78641[7], in Williamson County. Nearby suburbs with their own pages: Cedar Park (5.1 mi), Liberty Hill (6.7 mi), and Lago Vista (11.4 mi)[3].
My Leander home is fairly new — could the plumbing and water heater still be under warranty?
Possibly: 63% of Leander's housing units were built in 2010 or later[1], the 4th-highest share of the 15 Austin-area suburbs we cover. Check your closing paperwork for warranties before paying for a repair.
Sources
- Census ACS 2020–2024 5-year (keyless bulk)
- Census population estimates, Vintage 2025
- Census Gazetteer 2025
- NOAA Storm Events Database
- OpenFEMA NFIP claims
- Texas State Board of Plumbing Examiners (link unverified)
- Census 2020 ZCTA–place file
Data pulled Sep 28, 2026. Full citations and method.