Houston metro
Houston flood map 2026
About 1 in 11 single-family homes in the Houston area is in FEMA's 100-year flood zone. That's 167,821 of 1.87 million across Harris, Fort Bend, Montgomery, Galveston, and Brazoria counties. Galveston County has the highest share (33%) and Harris County the most homes (94,649). Search your address to see if your home is one of them, or open a county or neighborhood map below.
- High risk
- Moderate
- Coastal
- Floodway
Counties
FEMA's current map puts 33% of single-family homes in the 100-year zone in Galveston County, 19% in Brazoria, 8% in Harris, 3% in Montgomery, and 2% in Fort Bend. Harris County's draft 2026 map, the only draft map we track, moves 67,353 single-family homes into the zone and 31,505 out.
Neighborhoods
The share of single-family homes in the 100-year zone runs from 82% in Bellaire, 64% in Braeswood Place, and 45% in Meyerland, all in the Brays Bayou watershed, to under 1% in Montrose and Sugar Land. Each map shows today's FEMA zones, Harvey flooding, and, inside Harris County, the draft map.
Flood news and updates
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