FloodMaps
Map of FEMA flood zones in 77550Tap the map to explore

ZIP code · Flood risk

Check any address in 77550

Quick facts

In FEMA's 100-year zone

82%

5,353 of 6,557 single-family homes

Ground height

7 to 11 ft

Above sea level, for most homes in the ZIP

FEMA aid after Harvey

3,376 requests

1,143 grants, median $500

77550 and Galveston County

ZIP 77550's figures beside Galveston County's
77550Galveston County
Single-family homes6,557117,997
In the 100-year zone82%33%
Typical ground height9 ft16 ft

Frequently asked questions

Is 77550 in a flood zone?

5,353 of the 6,557 single-family homes in 77550 sit in FEMA's 100-year zone, or 82%. That is more than twice the Galveston County share of 33%.

Will the new flood map change 77550?

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 77550 flood in Hurricane Harvey?

FEMA took 3,376 aid requests from the ZIP after the storm and made 1,143 grants, with a median of $500. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77550?

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.

77550 has 6,557 single-family homes on the county appraisal roll. Most sit between 7 and 11 ft above sea level. 5,353 of them (82%) 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 77551 has 84%. After Hurricane Harvey, FEMA took 3,376 aid requests from the ZIP and made 1,143 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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