ZIP Code 78594 — Sebastian CDP, TX Demographics & Data

ZIP code 78594 covers Sebastian, TX in Willacy County with a population of about 1,303.

At a glance, the area shows median age of 42.4 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.

Median household income in ZIP 78594 is about $24,388 — about 68% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 38.7%; unemployment rate near 1.9%; 6.6% of adults with a bachelor’s degree or higher (about 27.1 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Food services, Construction, and Manufacturing; about 19.4% of workers reporting work-from-home (about 4.2 points above the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $37,900 — about 89% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $290 (about 75% below the U.S. median rent ($1,163)), and owner-occupancy near 73.3% (about 7.9 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 78594 in Sebastian, TX, a household would need roughly $10,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $243. That sits below the local median household income ($24,388), suggesting the typical household income is closer to a workable buy-in level under these assumptions. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

FEMA’s National Risk Index rates natural-hazard risk for Sebastian 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 Sebastian CDP, TX show little to no average snow and around 24.6 inches of annual precipitation.

IRS migration statistics show a net inflow of about 61 for ZIP 78594 (Sebastian 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.