What to know about ZIP 78111
ZIP code 78111 covers TX in Karnes County.
It sits in telephone area code 830; U.S. House district TX-15; the SAN ANTONIO media market.
, TX
ZIP Code 78111 — undefined, TX Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Map, Quick Facts & Location
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At a glance
Overview of ZIP Code 78111
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for TX as Relatively Low (composite score 58.4), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (85.1) and flood (63.8). 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 TX show limited published climate normals on US5.