FloodMaps
Map of FEMA flood zones in 77423Tap the map to explore

ZIP code · Flood risk

Check any address in 77423

Quick facts

In FEMA's 100-year zone

1%

42 of 2,857 single-family homes

Ground height

141 to 155 ft

Above sea level, for most homes in the ZIP

FEMA aid after Harvey

1,076 requests

471 grants, median $2,059

Nearest creek or channel

0.2 mi

Typical distance from a home

77423 and Fort Bend County

ZIP 77423's figures beside Fort Bend County's
77423Fort Bend County
Single-family homes2,858275,356
In the 100-year zone1%2%
Typical ground height153 ft85 ft
Typical distance to a creek0.2 mi0.2 mi

Frequently asked questions

Is 77423 in a flood zone?

42 of the 2,857 single-family homes in 77423 sit in FEMA's 100-year zone, or 1%. That is below the Fort Bend County share of 2%.

Will the new flood map change 77423?

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

Did 77423 flood in Hurricane Harvey?

FEMA took 1,076 aid requests from the ZIP after the storm and made 471 grants, with a median of $2,059. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77423?

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.

77423 has 2,858 single-family homes on the county appraisal roll. Most sit between 141 and 155 ft above sea level, and the typical home is 0.2 mi from the nearest creek or drainage channel. 42 of them (1%) are in FEMA's 100-year zone today. Fort Bend County has no draft map we track, so FEMA's current map sets flood insurance requirements here.

Next door, 77476 has 71% of its single-family homes in the zone and 77494 has 1%. After Hurricane Harvey, FEMA took 1,076 aid requests from the ZIP and made 471 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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