FloodMaps
Map of FEMA flood zones in 77539Tap the map to explore

ZIP code · Flood risk

Check any address in 77539

Quick facts

In FEMA's 100-year zone

46%

6,256 of 13,682 single-family homes

Ground height

9 to 20 ft

Above sea level, for most homes in the ZIP

FEMA aid after Harvey

11,390 requests

6,578 grants, median $2,912

Nearest creek or channel

0.2 mi

Typical distance from a home

77539 and Galveston County

ZIP 77539's figures beside Galveston County's
77539Galveston County
Single-family homes13,686117,997
In the 100-year zone46%33%
Typical ground height16 ft16 ft
Typical distance to a creek0.2 mi0.2 mi

Frequently asked questions

Is 77539 in a flood zone?

6,256 of the 13,682 single-family homes in 77539 sit in FEMA's 100-year zone, or 46%. That is above the Galveston County share of 33%.

Will the new flood map change 77539?

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 77539 flood in Hurricane Harvey?

FEMA took 11,390 aid requests from the ZIP after the storm and made 6,578 grants, with a median of $2,912. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77539?

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.

77539 has 13,686 single-family homes on the county appraisal roll. Most sit between 9 and 20 ft above sea level, and the typical home is 0.2 mi from the nearest creek or drainage channel. 6,256 of them (46%) 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, 77511 has 28% of its single-family homes in the zone and 77591 has 1%. After Hurricane Harvey, FEMA took 11,390 aid requests from the ZIP and made 6,578 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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