FloodMaps
Map of FEMA flood zones in 77551Tap the map to explore

ZIP code · Flood risk

Check any address in 77551

Quick facts

In FEMA's 100-year zone

84%

4,151 of 4,944 single-family homes

Ground height

5 to 11 ft

Above sea level, for most homes in the ZIP

FEMA aid after Harvey

2,275 requests

727 grants, median $500

Nearest creek or channel

0.7 mi

Typical distance from a home

77551 and Galveston County

ZIP 77551's figures beside Galveston County's
77551Galveston County
Single-family homes4,944117,997
In the 100-year zone84%33%
Typical ground height9 ft16 ft
Typical distance to a creek0.7 mi0.2 mi

Frequently asked questions

Is 77551 in a flood zone?

4,151 of the 4,944 single-family homes in 77551 sit in FEMA's 100-year zone, or 84%. That is more than twice the Galveston County share of 33%.

Will the new flood map change 77551?

Galveston County has no draft map we track, so the zones on this page are FEMA's current map, which sets flood insurance requirements.

Did 77551 flood in Hurricane Harvey?

FEMA took 2,275 aid requests from the ZIP after the storm and made 727 grants, with a median of $500. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77551?

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.

77551 has 4,944 single-family homes on the county appraisal roll. Most sit between 5 and 11 ft above sea level, and the typical home is 0.7 mi from the nearest creek or drainage channel. 4,151 of them (84%) 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 77550 has 82%. After Hurricane Harvey, FEMA took 2,275 aid requests from the ZIP and made 727 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.

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