Port Mansfield is a community in Willacy County, Texas, home to about 245 people across 4.9 square miles. Its ZIP code is 78598.
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| Nearest major airport | San Antonio International Airport (SAT)215 miles away |
|---|---|
| Closer regional airport | Valley International Airport (HRL)27 miles away |
| Nearest city of 250,000+ | Corpus Christi, TX84 miles away |
| Nearest city of 1 million+ | San Antonio, TX211 miles away |
Straight-line distances from the center of Port Mansfield; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Port Mansfield had 319 residents in the 2020 census, down 23% since 2000.
It’s the 1504th largest of 1,778 towns in Texas by population.
Willacy County grew from 10,499 residents in 1930 to 20,164 in 2020.
Willacy County, 1930–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 92°F in summer, and winter lows average 50°F. About 25.4 inches of rain and melted snow fall in a typical year, with about 0 inches of snow.
Source: NOAA 1991–2020 climate normals, Port Mansfield, TX weather station (about a mile away).
3,004 jobs at 189 businesses in Willacy County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Parks (1 nearby)
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.