ZIP code · Flood risk
In FEMA's 100-year zone
97%
8,722 of 8,955 single-family homes
Ground height
4 to 9 ft
Above sea level, for most homes in the ZIP
FEMA aid after Harvey
557 requests
167 grants, median $500
| 77554 | Galveston County | |
|---|---|---|
| Single-family homes | 8,955 | 117,997 |
| In the 100-year zone | 97% | 33% |
| Typical ground height | 6 ft | 16 ft |
8,722 of the 8,955 single-family homes in 77554 sit in FEMA's 100-year zone, or 97%. That is more than twice the Galveston County share of 33%.
Galveston County has no draft map we track, so the zones on this page are FEMA's current map, which sets flood insurance requirements.
FEMA took 557 aid requests from the ZIP after the storm and made 167 grants, with a median of $500. A FloodMaps report shows a single address's Harvey record.
Search the address above for a free check of its FEMA flood zone and its ground height. For the full picture, including Harvey records, flood depth modeling, and an AI summary written from the home's own data, upgrade to a Premium Report starting at $7.
77554 has 8,955 single-family homes on the county appraisal roll. Most sit between 4 and 9 ft above sea level. 8,722 of them (97%) are in FEMA's 100-year zone today. Galveston County has no draft map we track, so FEMA's current map sets flood insurance requirements here.
Next door, 77551 has 84% of its single-family homes in the zone and 77590 has 3%. After Hurricane Harvey, FEMA took 557 aid requests from the ZIP and made 167 grants.
Compiled by FloodMaps from FEMA and county records. Flood-zone counts are single-family homes on the county appraisal rolls, placed on FEMA's flood map as it stood on October 13, 2026. FEMA aid is Individual Assistance requests and grants after Harvey, by ZIP.