🇺🇸 United States ZIP Code

STANDARD

77521

Baytown

ZIP Code 77521 is a standard zip code serving Baytown, Baytown, Texas (TX), in Harris County, United States. It has an estimated population of 49,507 with a median household income of $53,726. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Texas (TX)
County: Harris
City: Baytown
Timezone: America/Chicago

Coordinates

Latitude: 29.770500
Longitude: -94.969500

Geographic Details

Land Area: 41.47 mi²
Water Area: 0.44 mi²
Population Density: 1194.0 people per mi² (80th percentile)
Bounding Box: 29.858955°N, 29.742739°S, -94.895909°E, -95.056890°W

With 49,507 residents spread across 41.47 square miles, this area has a population density of 1194.0 people per square mile.

Demographics

49,507

Population

95th percentile

$53,726

Median Income

60th percentile

$120,000

Median Home Value

45th percentile

41.47 mi²

Land Area

The median household income in 77521 is $53,726, and the median home value is $120,000.

Housing

19,637

Total Units

17,327

Occupied Units

88.2%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Baytown, TX.

77520

Baytown

77522

Baytown

77523

Baytown

Similar ZIP Codes in Texas

ZIP codes with similar median household income in Texas.

76102

Fort Worth

$50,177

79764

Odessa

$50,556

75158

Scurry

$58,466

76670

Milford

$49,667

78114

Floresville

$58,024

79938

El Paso

$52,119

75161

Terrell

$56,148

77511

Alvin

$52,507

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.