Aransas County, Texas · Rockport
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With 6% 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.
Heavy rain days of an inch or more come about 8.6 times a year here, most often in May. A sump pump that hasn't run since last season is a common weak point.
6% 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.
In Aransas County, 6.16 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
4% of occupied homes in Aransas County heat mainly with wood or propane, below the Texas county median of 6.5%.
Muggy summer nights, lows of 65°F or more, come about 215 times a year in Aransas County. Mold after a leak spreads fastest from June through August.
Local risk profile
With 15,999 homes and around 24,876 residents, Aransas County is 252 square miles of southeast Texas. Besides Rockport, the county seat, the biggest communities are Lamar, Fulton and Holiday Beach. Much of its housing is recent, with a median build year of 1998.
33/100 Water Damage Risk Index: Moderate Aransas County ranks 219 of 232 Texas counties. See the statewide ranking and method.The three factors where Aransas County ranks highest compared with other Texas counties.
Aransas County is milder than most of Texas, but not mild enough to skip winterizing. From 2015–2024 it averaged 0 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 3 nights at or below 32°F. That ranks 205th of 232 counties.
With only about 3 freezing nights a year, many homes here aren't built for cold, so a single arctic outbreak can burst pipes across the county. The record low in this data was about 18°F, on February 16, 2021.
Rainfall is about average for Texas. The county gets about 35.4 inches of rain and melted snow a year, with 8.6 days of an inch or more (103rd of 232). Those downpours cluster in May, June and September, when sump pumps and gutters are tested hardest. The wettest day on record brought 6.16 inches on May 16, 2016. Multi-day storms matter most for basements; the wettest three days on record here totaled 10.84 inches (through June 21, 2018).
Housing
24% of homes in Aransas County predate 1980, below the Texas county median of 45.8%, which ranks 207th of Texas's 232 counties.
Growth since 2000 added 48% 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.
29% 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.
Here 14% of housing is manufactured homes. Check the skirting and the heat tape on the main water line every fall, because that one exposed line is what freezes.
The Census counted 22% of homes as vacant, above the Texas county median of 16.6%. Empty houses are where a small leak turns into a large claim, because nobody is there to hear it.
Beyond water
About 215 nights a year in Aransas County stay at 65°F or warmer, a sign of muggy summer air (5th of 232 counties). May is the wettest month. Keep indoor humidity under 60%, as the EPA advises, and dry any leak within 24 to 48 hours; in a humid month a wet basement left alone won't dry by itself.
Mold remediation: what to expectHeating fuel matters for fire risk. In Aransas County it's 13% utility gas, 80% 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 Aransas County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Aransas gets more pipe-freeze nights than any of its neighbors. Refugio County has the oldest housing nearby, with 60% of homes built before 1980.
By the numbers
| Factor | Aransas | Texas median | Rank |
|---|---|---|---|
| Homes built before 1960 | 6.3% | 20% | 215 of 232 |
| Homes built before 1980 | 24% | 46% | 207 of 232 |
| Homes built 2000 or later | 48% | 26% | 19 of 232 |
| Manufactured or mobile homes | 14% | 13% | 115 of 232 |
| Vacant homes | 22% | 17% | 64 of 232 |
| Wood or propane heat | 4.4% | 6.5% | 152 of 232 |
| Nights at 20°F or colder | 0/yr | 3/yr | 205 of 232 |
| Days with 1 inch+ of rain | 8.6/yr | 7.8/yr | 103 of 232 |
| Freeze-thaw days | 3/yr | 27/yr | 218 of 232 |
| Muggy nights (65°F+) | 215/yr | 129/yr | 5 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 Aransas 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