FloodMaps
Map of FEMA flood zones in 77517Tap the map to explore

ZIP code · Flood risk

Check any address in 77517

Quick facts

In FEMA's 100-year zone

1%

27 of 1,806 single-family homes

Ground height

21 to 31 ft

Above sea level, for most homes in the ZIP

FEMA aid after Harvey

803 requests

452 grants, median $2,701

Nearest creek or channel

0.1 mi

Typical distance from a home

77517 and Galveston County

ZIP 77517's figures beside Galveston County's
77517Galveston County
Single-family homes1,806117,997
In the 100-year zone1%33%
Typical ground height27 ft16 ft
Typical distance to a creek0.1 mi0.2 mi

Frequently asked questions

Is 77517 in a flood zone?

27 of the 1,806 single-family homes in 77517 sit in FEMA's 100-year zone, or 1%. That is less than half the Galveston County share of 33%.

Will the new flood map change 77517?

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 77517 flood in Hurricane Harvey?

FEMA took 803 aid requests from the ZIP after the storm and made 452 grants, with a median of $2,701. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77517?

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.

77517 has 1,806 single-family homes on the county appraisal roll. Most sit between 21 and 31 ft above sea level, and the typical home is 0.1 mi from the nearest creek or drainage channel. 27 of them (1%) 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, 77539 has 46% of its single-family homes in the zone and 77510 has 3%. After Hurricane Harvey, FEMA took 803 aid requests from the ZIP and made 452 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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