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ZIP code 78521: Brownsville, TX

78521 is a ZIP code in Brownsville, Texas, mainly in Cameron County, part of the Brownsville-Harlingen, TX metro area. About 87,380 people live here.

Population
87,380
Median household income
$44,509
Typical home value
$169,000+1% in 12 months
Median rent
$889gross, per month
Median age
31.3
Homeowners
60.3%of occupied homes
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Shaded: ZIP code 78521's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 78521 details

CityBrownsville
StateTexas
CountyCameron County
Metro areaBrownsville-Harlingen, TX
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area93.6 sq mi, plus 27.9 sq mi of water
Population density933 people per sq mi
Bachelor's degree or higher16.7% of adults 25+
Average commute22.4 minutes
Center coordinates25.94392, -97.31794

Median rent in 78521 by bedrooms

SizeMedian gross rent
Studio$790/mo
1 bedroom$755/mo
2 bedrooms$878/mo
3 bedrooms$992/mo
4 bedrooms$1,165/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 78521

ZIP codeCityDistancePopulation
78578Port Isabel, TX6.9 mi10,016
78526Brownsville, TX9.0 mi60,012
78522Brownsville, TX11.5 mi—
78523Brownsville, TX12.9 mi—
78566Los Fresnos, TX14.1 mi25,110
78520Brownsville, TX14.4 mi64,740
78575Olmito, TX15.7 mi4,575
78568Lozano, TX22.0 mi—

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 78521?

A typical home in ZIP code 78521 is worth about $169,000 (Zillow Home Value Index). The median household here earns $44,509 a year. See what buying here would cost per month, with Texas average taxes and insurance filled in.

Monthly payment for a $169,000 homeWhat can a $44,509 income afford?Rental property numbers

About ZIP code 78521

What city is ZIP code 78521?

ZIP code 78521 is in Brownsville, TX, in Cameron County.

What county is ZIP code 78521 in?

78521 is mainly in Cameron County, Texas.

What is the population of ZIP code 78521?

About 87,380 people live in ZIP code 78521, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 78521 in?

78521 is in Central Time (UTC−6). It observes daylight saving time.

What other ZIP codes does Brownsville have?

Brownsville, TX also uses 78520, 78522, 78523 and 78526.