ZIP Code 77003

5,285 properties in this area

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77003 Summary Statistics

Flood risk, pollution data, and real estate statistics for this area

Area Overview

The majority of properties (99.9%) sit in FEMA Zone X with minimal flood risk. At an average elevation of 41.1 feet above sea level, this is a moderate elevation area for the Houston region. Properties here have moderate pollution levels compared to the Houston metro, with 85% within 2 miles of facilities releasing known carcinogens.

Flood Risk Summary

FEMA Flood Zones

FEMA designates flood zones based on flood risk. Flood insurance is required for high-risk zones with federally backed mortgages.

XMinimal Risk5,282 (99.9%)

Outside 100-year floodplain. Flood insurance optional but recommended.

AEHigh Risk3 (0.1%)

1% annual flood chance with base flood elevations. Insurance required.

Flood Risk Level

Our flood risk assessment combines FEMA flood zone, elevation, and proximity to bayous into a single rating.

Very Low5,282
99.9%
Moderate2
0.0%
Very High1
0.0%
Average Ground Elevation41.1 ftAbove sea level. Higher elevation generally means lower flood risk.

Pollution Summary

Based on EPA Toxics Release Inventory (TRI) data. TRI tracks industrial facilities that release toxic chemicals into air, water, or land.

Pollution Exposure Level64.9/100(Moderate)Higher = more pollution exposure from nearby industrial facilities.
Properties Near Carcinogen Sources84.7%Within 2 miles of facilities releasing known carcinogens.
Properties Near PBT Sources100%PBTs (Persistent Bioaccumulative Toxics) accumulate in the environment and food chain.
Avg. TRI Facilities Nearby9.5Average number of TRI-reporting industrial facilities within 2 miles of properties.

Real Estate Summary

Based on 2025 Harris County Appraisal District (HCAD) data for residential properties.

Property Values

Median Home Value$382,515
Average Home Value$480,482
Year-over-Year Change+7.43%

Home Characteristics

Average Home Size2,779 sq ft
Average Lot Size3,133 sq ft
Average Year Built1991

Based on 3,508 residential properties in this ZIP code.

Home Age Distribution

Before 19501,000
27.7%
1950-196945
1.2%
1970-198911
0.3%
1990-2009909
25.2%
2010+1,648
45.6%

Property Types

Real, Residential, Single-Family3,428 (57.9%)
Real, Vacant Lots/Tracts (In City)688 (11.6%)
Real, Commercial621 (10.5%)
Other Exempt (Government)469 (7.9%)
Real, Vacant Commercial298 (5%)

Recent Permits (Last 5 Years)

New Dwelling - permit271
Repairs (Foundation / GM)114
Additions or Remodeling98
New Dwelling - no permit61
Residential Demolition43

New Construction

Properties with New Construction128
Total New Construction Value$53,838,145
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