ZIP 77978 is served primarily by Calhoun County, TX — including Port Lavaca. ZIP-level data is sparse — showing the Calhoun County aggregate. FEMA NRI rates wildfire risk here as Moderate.
Mar peaks. Dec dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Vehicle accident, general cleanup | 43 | 18.3% | |
| 2 | Grass fire | 31 | 13.2% | |
| 3 | Gas leak (natural gas or LPG) | 27 | 11.5% | |
| 4 | Aircraft standby | 25 | 10.6% | |
| 5 | Brush, or brush and grass mixture fire | 15 | 6.4% |
3 cities sit in Calhoun County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Port Lavaca | 11,545 | 204 | 3 | B- |
| 2 | Seadrift | 1,577 | 18 | 4 | B+ |
| 3 | Port O'Connor | 791 | 0 | 0 | — |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
This ZIP doesn't have enough NFIRS coverage on its own (under 10 reported incidents across 2021–2025) to publish ZIP-level statistics, so we're showing the Calhoun County aggregate above. NFIRS reporting is voluntary and many rural ZIPs roll up to broader county totals. The ZIP-to-county mapping uses SimpleMaps' uscities.zips dataset.