FloodMaps
Map of FEMA flood zones in 77430Tap the map to explore

ZIP code · Flood risk

Check any address in 77430

Quick facts

In FEMA's 100-year zone

27%

193 of 702 single-family homes

Ground height

33 to 102 ft

Above sea level, for most homes in the ZIP

FEMA aid after Harvey

260 requests

122 grants, median $680

Nearest creek or channel

0.5 mi

Typical distance from a home

77430 and Brazoria County

ZIP 77430's figures beside Brazoria County's
77430Brazoria County
Single-family homes702111,057
In the 100-year zone27%19%

Frequently asked questions

Is 77430 in a flood zone?

193 of the 702 single-family homes in 77430 sit in FEMA's 100-year zone, or 27%. That is above the Brazoria County share of 19%.

Will the new flood map change 77430?

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

Did 77430 flood in Hurricane Harvey?

FEMA took 260 aid requests from the ZIP after the storm and made 122 grants, with a median of $680. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77430?

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.

77430 has 702 single-family homes on the county appraisal roll. Most sit between 33 and 102 ft above sea level, and the typical home is 0.5 mi from the nearest creek or drainage channel. 193 of them (27%) are in FEMA's 100-year zone today. Brazoria County has no draft map we track, so FEMA's current map sets flood insurance requirements here.

Next door, 77515 has 24% of its single-family homes in the zone and 77461 has 4%. After Hurricane Harvey, FEMA took 260 aid requests from the ZIP and made 122 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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