ZIP code · Flood risk
In FEMA's 100-year zone
83%
3,182 of 3,847 single-family homes
Ground height
5 to 15 ft
Above sea level, for most homes in the ZIP
FEMA aid after Harvey
2,171 requests
1,065 grants, median $2,154
Nearest creek or channel
0.4 mi
Typical distance from a home
| 77563 | Galveston County | |
|---|---|---|
| Single-family homes | 3,847 | 117,997 |
| In the 100-year zone | 83% | 33% |
| Typical ground height | 10 ft | 16 ft |
| Typical distance to a creek | 0.4 mi | 0.2 mi |
3,182 of the 3,847 single-family homes in 77563 sit in FEMA's 100-year zone, or 83%. 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 2,171 aid requests from the ZIP after the storm and made 1,065 grants, with a median of $2,154. 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.
77563 has 3,847 single-family homes on the county appraisal roll. Most sit between 5 and 15 ft above sea level, and the typical home is 0.4 mi from the nearest creek or drainage channel. 3,182 of them (83%) 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, 77554 has 97% of its single-family homes in the zone and 77510 has 3%. After Hurricane Harvey, FEMA took 2,171 aid requests from the ZIP and made 1,065 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.