FloodMaps
Map of FEMA flood zones in 77578Tap the map to explore

ZIP code · Flood risk

Check any address in 77578

Quick facts

In FEMA's 100-year zone

13%

967 of 7,584 single-family homes

Ground height

50 to 66 ft

Above sea level, for most homes in the ZIP

FEMA aid after Harvey

1,660 requests

564 grants, median $500

Nearest creek or channel

0.1 mi

Typical distance from a home

77578 and Brazoria County

ZIP 77578's figures beside Brazoria County's
77578Brazoria County
Single-family homes7,584111,057
In the 100-year zone13%19%

Frequently asked questions

Is 77578 in a flood zone?

967 of the 7,584 single-family homes in 77578 sit in FEMA's 100-year zone, or 13%. That is below the Brazoria County share of 19%.

Will the new flood map change 77578?

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 77578 flood in Hurricane Harvey?

FEMA took 1,660 aid requests from the ZIP after the storm and made 564 grants, with a median of $500. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77578?

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.

77578 has 7,584 single-family homes on the county appraisal roll. Most sit between 50 and 66 ft above sea level, and the typical home is 0.1 mi from the nearest creek or drainage channel. 967 of them (13%) 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, 77511 has 28% of its single-family homes in the zone and 77584 has 5%. After Hurricane Harvey, FEMA took 1,660 aid requests from the ZIP and made 564 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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