FloodMaps
Map of FEMA flood zones in 77590Tap the map to explore

ZIP code · Flood risk

Check any address in 77590

Quick facts

In FEMA's 100-year zone

3%

255 of 8,610 single-family homes

Ground height

5 to 8 ft

Above sea level, for most homes in the ZIP

FEMA aid after Harvey

3,838 requests

1,249 grants, median $500

Nearest creek or channel

0.3 mi

Typical distance from a home

77590 and Galveston County

ZIP 77590's figures beside Galveston County's
77590Galveston County
Single-family homes8,610117,997
In the 100-year zone3%33%
Typical ground height7 ft16 ft
Typical distance to a creek0.3 mi0.2 mi

Frequently asked questions

Is 77590 in a flood zone?

255 of the 8,610 single-family homes in 77590 sit in FEMA's 100-year zone, or 3%. That is less than half the Galveston County share of 33%.

Will the new flood map change 77590?

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 77590 flood in Hurricane Harvey?

FEMA took 3,838 aid requests from the ZIP after the storm and made 1,249 grants, with a median of $500. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77590?

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.

77590 has 8,610 single-family homes on the county appraisal roll. Most sit between 5 and 8 ft above sea level, and the typical home is 0.3 mi from the nearest creek or drainage channel. 255 of them (3%) 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 77591 has 1%. After Hurricane Harvey, FEMA took 3,838 aid requests from the ZIP and made 1,249 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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