ZIP Code 78255 — Cross Mountain CDP, TX Demographics & Data

ZIP code 78255 covers Cross Mountain, TX in Bexar County with a population of about 18,107.

At a glance, the area shows median age of 40.6 versus a U.S. median of about 38.9.

It sits in telephone area codes 210, 726; U.S. House district TX-23; the SAN ANTONIO media market.

Cross Mountain, TX aligns with a tech / corporate-campus profile (high remote-work / education / income profile or known campus context). Broadband quality, remote-work share, and nearby employer campuses often matter as much as classic residential stats.

Median household income in ZIP 78255 is about $151,673 — about 102% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 4.5%; unemployment rate near 4.2%; 60.8% of adults with a bachelor’s degree or higher (about 27.1 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Education, and Finance and insurance; about 22.7% of workers reporting work-from-home (about 7.5 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 $490,600 — about 41% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,580 (about 36% above the U.S. median rent ($1,163)), and owner-occupancy near 84.6% (about 19.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 78255 in Cross Mountain, TX, a household would need roughly $135,000 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 $3,151. That sits below the local median household income ($151,673), 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 Cross Mountain CDP, TX as Relatively High (composite score 99.4), which is among the highest nationally. The strongest component scores on US5 are flood (99.7) and wildfire (92.4). 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 Cross Mountain CDP, TX show little to no average snow and around 37.5 inches of annual precipitation.

IRS migration statistics show a net inflow of about 854 for ZIP 78255 (Cross Mountain 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.