FloodMaps
Map of FEMA flood zones in 77520Tap the map to explore

ZIP code · Flood risk

Check any address in 77520

Quick facts

In FEMA's 100-year zone

5%

462 of 9,178 single-family homes

Draft 2026 flood map

7 in, 52 out

Single-family homes moving into or out of the 100-year zone

Ground height

17 to 31 ft

Above sea level, for most homes in the ZIP

Harvey, 2017

At least 242 homes

In FEMA's Harvey damage model

FEMA aid after Harvey

4,588 requests

1,587 grants, median $500

77520 and Harris County

ZIP 77520's figures beside Harris County's
77520Harris County
Single-family homes9,1781,154,353
In the 100-year zone5%8%
On the draft 2026 map5%11%
Moving into the zone767,353

Frequently asked questions

Is 77520 in a flood zone?

462 of the 9,178 single-family homes in 77520 sit in FEMA's 100-year zone, or 5%. That is below the Harris County share of 8%.

Will the new flood map change 77520?

Harris County's draft 2026 map moves 7 single-family homes in 77520 into the 100-year zone and 52 out of it. It's a draft, not FEMA's map, so today's zones set insurance requirements until FEMA adopts a new one.

Did 77520 flood in Hurricane Harvey?

At least 242 single-family homes in 77520 are among the damaged in FEMA's Harvey model. FEMA also took 4,588 aid requests from the ZIP after the storm and made 1,587 grants, with a median of $500. A FloodMaps report shows a single address's Harvey record.

How do I check a home in 77520?

Search the address above for a free check of its FEMA flood zone, its zone on the draft 2026 map, 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.

77520 has 9,178 single-family homes on the Harris County appraisal roll. Most sit between 17 and 31 ft above sea level. On Harris County's draft 2026 map, 7 single-family homes move into the 100-year zone and 52 move out, which would put 5% of the ZIP in the zone, against 5% today. Until FEMA adopts the draft, today's map decides who must carry flood insurance.

Next door, 77571 has 20% of its single-family homes in the zone and 77530 has 2%. FEMA's Harvey damage model counts at least 242 single-family homes here as damaged, and FEMA took 4,588 aid requests from the ZIP after the storm.

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 and Harris County's draft 2026 map as they stood on October 13, 2026. Harvey damage is FEMA's modeled damage for the 2017 storm, with each home counted once. FEMA aid is Individual Assistance requests and grants after Harvey, by ZIP.

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