Brazoria County, Texas · Angleton
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With 8% of homes built before 1960 and about 0 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
May brings the most downpours to Brazoria County, part of 15.1 heavy-rain days a year. Check the sump first.
8% of homes here predate 1960, when clay and cast iron sewer laterals were standard. Roots and cracks in those lines are a common cause of backups.
Brazoria County's wettest day in the 2015–2024 record brought 7.32 inches.
4% of occupied homes in Brazoria County heat mainly with wood or propane, below the Texas county median of 6.5%.
With 193 muggy nights a year, mold in Brazoria County can appear within days of a leak. Dry first, then clean.
Local risk profile
About 391,255 people live in Brazoria County, 1,363 square miles in southeast Texas, in roughly 150,321 homes. The county seat is Angleton, and Pearland, Alvin and Lake Jackson round out the largest towns. Much of its housing is recent, with a median build year of 1996.
41/100 Water Damage Risk Index: Moderate Brazoria County ranks 182 of 232 Texas counties. See the statewide ranking and method.The three factors where Brazoria County ranks highest compared with other Texas counties.
Winters here are on the gentler end for Texas, and pipes still freeze. It averaged 3 freezing nights a year over 2015–2024, 0 of them at 20°F or colder, cold enough for pipes in outside walls and crawl spaces to freeze. Among 232 Texas counties that's 205th.
Hard freezes are uncommon here, about 3 nights a year at or below 32°F, and that's exactly why they do damage: pipes in attics, exterior walls and slab-edge plumbing are rarely insulated. The coldest night in the record was about 16°F on February 16, 2021.
Heavy rain is a bigger factor here than in most of Texas. The county gets about 53.3 inches of rain and melted snow a year, with 15.1 days of an inch or more (31st of 232). Those downpours cluster in May, June and September, when sump pumps and gutters are tested hardest. The wettest day on record brought 7.32 inches on August 27, 2017. The worst three-day stretch dropped 18.53 inches, ending August 29, 2017, the kind of soaking that overwhelms sump pumps and storm sewers.
Housing
Roughly 29% of the county's housing was built before 1980. That puts Brazoria among the newer housing stocks of Texas's 232 counties.
Growth since 2000 added 45% of today's homes. In houses that new, the weak points are washing machine hoses, ice maker lines, water heaters and sump pumps rather than the pipes in the walls.
26% date from 1980 to 1999, the window when polybutylene, a gray flexible plastic supply pipe, was used in some homes. It's prone to leaks at the fittings, so it's worth checking for in a house from those years.
9% of homes are manufactured or mobile homes, below the Texas county median of 13.4%. Their water lines run under the floor behind the skirting, so a torn skirt or failed heat tape freezes them faster than lines in a site-built house.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 193 times a year here, above the Texas county median of 129. Mold grows when indoor humidity stays above about 60%, the EPA's ceiling. A basement dehumidifier set to 50% and drying anything wet within 24 to 48 hours prevents most problems.
Mold remediation: what to expectBy main heating fuel, Brazoria County homes break down as 46% utility gas, 48% electric, 4% propane and under 1% wood. Most homes here heat with gas or electricity, so cooking and electrical faults are the likelier fire sources. Even a contained kitchen fire can send soot through the ductwork to every room.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Brazoria County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Fort Bend, Harris and Wharton get more pipe-freeze nights than Brazoria. Matagorda County has the oldest housing nearby, with 52% of homes built before 1980.
By the numbers
| Factor | Brazoria | Texas median | Rank |
|---|---|---|---|
| Homes built before 1960 | 7.6% | 20% | 204 of 232 |
| Homes built before 1980 | 29% | 46% | 196 of 232 |
| Homes built 2000 or later | 45% | 26% | 27 of 232 |
| Manufactured or mobile homes | 8.9% | 13% | 169 of 232 |
| Vacant homes | 11% | 17% | 181 of 232 |
| Wood or propane heat | 3.9% | 6.5% | 169 of 232 |
| Nights at 20°F or colder | 0/yr | 3/yr | 205 of 232 |
| Days with 1 inch+ of rain | 15/yr | 7.8/yr | 31 of 232 |
| Freeze-thaw days | 3/yr | 27/yr | 218 of 232 |
| Muggy nights (65°F+) | 193/yr | 129/yr | 16 of 232 |
Rank 1 is the highest value. Bars run from the lowest to the highest Texas county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Brazoria County: freezing from midwinter, heavy rain in May, June and September.
Sources: U.S. Census Bureau, ACS 2024 5-year estimates (2020-2024); weather from NOAA nClimGrid-Daily county averages (EpiNOAA), 2015–2024, averaged across the county; county boundaries from Census TIGER. Reviewed 2026-10-21. Methodology