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ZIP Code 77431 — undefined, TX Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Map, Quick Facts & Location

Quick Facts

Local time
Population
204
Median Income
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Home Value
N/A
Median Rent
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Median Age
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City
N/A
Area Code
Congress
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Location
Coordinates
31.0545, -97.5635
Elevation
N/A
Land Area
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Water Area
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At a glance

Population
204
Density
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Median income
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Home value
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Timezone

Overview of ZIP Code 77431

RetirementRetirement-oriented community
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What to know about ZIP 77431

ZIP code 77431 covers TX in Brazoria County with a population of about 204.

It sits in telephone area code 979; U.S. House district TX-14; the HOUSTON media market.

Local search focus: Retirement

TX fits a retirement-oriented profile (high share of residents 65+ (100.0%)). Residents and relocators commonly research healthcare access, everyday amenities (dining, personal services), and housing costs rather than tech or campus life.

Income and economy in TX

On socioeconomic markers, US5 shows a poverty rate of 0.0%; unemployment rate near 100.0%.

Housing and affordability in ZIP 77431

Housing tenure and rents show owner-occupancy near 94.1% (about 28.7 points above the national owner-occupancy rate (65.4%)).

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for TX as Relatively Moderate (composite score 93.6), which is among the highest nationally. The strongest component scores on US5 are hurricane (96.9) and flood (94.4). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for TX show limited published climate normals on US5.

IRS migration statistics show a net inflow of about 10 for ZIP 77431 (TX) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.