Plumbing repair · Lago Vista, Texas
Plumbing repair in Lago Vista, TX
Leak, backed-up drain, no hot water, or a frozen line? The largest share of Lago Vista's homes (25%) was built 2000 to 2009[1]. Request a licensed plumber who works here. Lago Vista, in Travis County — ZIP 78645, counts 10,498 residents (2025 estimate)[2].
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Lago Vista plumbing snapshot: the key figures
- Population (2025 est.)
- 10,498[2]+18.2% since 2020
- County
- Travis[2]
- Land area
- 14.4 sq mi[3]
- Decade the most homes date from
- 2000 to 2009[1]25% of housing units
- Homes built before 1980
- 14%[1]the 2nd-highest share of the 15 Austin-area suburbs we cover
- Homes built 1980–1999
- 27%[1]2020–2024
- Homes built 2010 or later
- 34%[1]the 5th-lowest share of the 15 Austin-area suburbs we cover
- Winter-storm & freeze days, travis zone
- 22[4]2016–2025
- Flood & flash-flood reports within 10 mi
- 3[4]2 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
- FEMA flood-insurance claims, local ZIPs
- 139[5]43 in the last 10 years; 98 paid
Reading the Lago Vista data for plumbing
Lago Vista counts 10,498 residents (2025 estimate), growing at a middle-of-the-pack 18.2% since 2020[2]. On the map that's 14.4 square miles holding 727 residents per square mile, the 15th densest of the suburbs here; it sits entirely in Travis County, with ZIP code 78645[3].
With 34% of homes built since 2010 and 14% before 1980[1], Lago Vista's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.
The entire city sits in ZIP code 78645[7].
The closest tracked neighbours are Lakeway (6.8 mi S), Bee Cave (10.2 mi S) and Cedar Park (11.0 mi E)[3].
14% of Lago Vista's 4,926 housing units predate 1980 and 34% went up in 2010 or later[1] — the 2nd-highest pre-1980 share of the 15 Austin-area suburbs we cover; nearby, Lakeway (14%), Bee Cave (0%), and Cedar Park (6%) predate 1980. Houses that old can still have galvanized supply pipe or cast-iron drains — especially the 2% built before 1960.
The biggest single slice — 25% — was built 2000 to 2009, and the median home dates to 2004[1]. Neighbours from the same era tend to hit the same plumbing problems at the same time.
Freeze risk: the travis forecast zone logged 22 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: 3 flood or flash-flood reports within 10 miles over 2016–2025[4], and FEMA logged 139 flood-insurance claims across Lago Vista's ZIPs[5]. Homes that take water need working drainage, sump pumps and backflow prevention.
7% of homes heat with utility gas, and 10% of households rent[1].
Among the 15 suburbs tracked here, Lago Vista stands out for the lowest gas-heat share (7%)[1], the fewest flood reports nearby (3)[4], the lowest renter share (10%)[1], and the 2nd-highest pre-1980 housing share (14%)[1].
plumbing help in Lago Vista: what to do next
Plumbing repair contractors taking requests around Lago Vista cover ZIP code 78645.
Before reaching out: before the plumber arrives
Lago Vista by the numbers
| Measure | Lago Vista | Median of 15 | Difference |
|---|---|---|---|
| Built before 1980 | 14% | 4% | 10 pts higher |
| Flood reports (10 mi) | 3 | 17 | 14 fewer |
| Utility-gas heat | 7% | 37% | 29 pts lower |
| Renter-occupied | 10% | 31% | 20 pts lower |
| Built before 1960 | 2.1% | 1.5% | 1 pts higher |
| Built 2010 or later | 34% | 50% | 15 pts lower |
| Median year built | 2004 | 2010 | 6 years older |
Sorted by largest difference. Each median is the middle value across the covered Austin-area suburbs, from the same sources.
| City | Flood reports | NFIP claims | Freeze days |
|---|---|---|---|
| Lago Vista | 3 | 139 | 22 |
| Lakeway 6.8 mi | 8 | 353 | 22 |
| Bee Cave 10.2 mi | 17 | 2 | 22 |
| Cedar Park 11.0 mi | 27 | 61 | 23 |
| Leander 11.4 mi | 20 | 104 | 23 |
| Liberty Hill 15.4 mi | 17 | 38 | 23 |
| ZIP | Claims | Paid | Busiest year |
|---|---|---|---|
| 78645 | 139 | $2,701,609 | 2018 (38) |
ZIPs extend past city limits.
| Date | Type | Distance |
|---|---|---|
| Jul 5, 2025 | Flash Flood | 5.4 mi |
| Jul 5, 2025 | Flash Flood | 6.2 mi |
| Oct 16, 2018 | Flood | 7.5 mi |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 533 | 10.8% | ±234 |
| 2010 to 2019 | 1,160 | 23.5% | ±270 |
| 2000 to 2009 | 1,208 | 24.5% | ±420 |
| 1990 to 1999 | 628 | 12.7% | ±208 |
| 1980 to 1989 | 695 | 14.1% | ±265 |
| 1970 to 1979 | 583 | 11.8% | ±228 |
| 1960 to 1969 | 18 | 0.4% | ±27 |
| 1950 to 1959 | 42 | 0.9% | ±47 |
| 1940 to 1949 | 43 | 0.9% | ±54 |
| 1939 or earlier | 16 | 0.3% | ±26 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 4,926 |
| Detached single-family | 4,161 (84%) |
| Occupied homes | 4,420 |
| Owner-occupied | 3,962 (90%) |
| Renter-occupied | 458 (10%) |
| Median home value | $420,000 |
ACS 2020–2024 estimates.
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Electricity | 3,482 | 78.8% | ±271 |
| Bottled or tank gas (propane, butane, etc.) | 587 | 13.3% | ±166 |
| Utility gas | 322 | 7.3% | ±145 |
| Wood | 29 | 0.7% | ±46 |
| ZIP (ZCTA) | Share of Lago Vista's land | Share of the ZIP inside the city |
|---|---|---|
| 78645 | 100% | 44% |
Dated heat and freeze records for the TRAVIS forecast zone: see the county list.
plumbing questions from Lago Vista homeowners
Are Lago Vista homes likely to have old galvanized pipes?
Only an inspection can say, but age is the clue: 2% were built before 1960 and 14% before 1980[1].
How often do pipes freeze in Lago Vista?
The record for Lago Vista's forecast zone shows 22 winter-storm or freeze days over 2016–2025, in 9 different years[4].
Which ZIP codes are covered in Lago Vista?
78645[7], in Travis County. Nearby suburbs with their own pages: Lakeway (6.8 mi), Bee Cave (10.2 mi), and Cedar Park (11.0 mi)[3].
My Lago Vista home runs on propane — does that matter?
13.3% of occupied Lago Vista homes heat mainly with bottled, tank or LP gas[1], at least twice the median share of the suburbs we cover (2.2%). Homes on propane need a contractor who works on LP appliances — mention it when you request service.
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.