ZIP Code 78598 — Port Mansfield CDP, TX Demographics & Data

ZIP code 78598 covers Port Mansfield, TX in Willacy County with a population of about 157.

At a glance, the area shows median age of 66.5 versus a U.S. median of about 38.9.

It sits in telephone area code 956; U.S. House district TX-34; the HARLINGEN - WSLCO - BRNSVL - MCA media market.

Port Mansfield, TX fits a retirement-oriented profile (high share of residents 65+ (56.0%)). Residents and relocators commonly research healthcare access, everyday amenities (dining, personal services), and housing costs rather than tech or campus life.

Median household income in ZIP 78598 is about $25,000 — about 67% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 18.0%; unemployment rate near 0.0%; 51.3% of adults with a bachelor’s degree or higher (about 17.6 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Construction, Mining, and Transportation; about 18.4% of workers reporting work-from-home (about 3.2 points above the U.S. share (15.2%)); a mean commute of about 31.0 minutes (U.S. average near 26.8).

Housing tenure and rents show owner-occupancy near 91.3% (about 25.9 points above the national owner-occupancy rate (65.4%)).

FEMA’s National Risk Index rates natural-hazard risk for Port Mansfield CDP, TX as Relatively Low (composite score 77.5), which is elevated versus much of the country. The strongest component scores on US5 are hurricane (91.7) and flood (30.9). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Port Mansfield CDP, TX show little to no average snow and around 25.3 inches of annual precipitation.

IRS migration statistics show a net inflow of about 7 for ZIP 78598 (Port Mansfield CDP, TX) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.