🇺🇸 United States ZIP Code

STANDARD

75231

Dallas

ZIP Code 75231 is a standard zip code serving Dallas, Dallas, Texas (TX), in Dallas County, United States. It has an estimated population of 37,052 with a median household income of $33,546. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 32.875600
Longitude: -96.749500

Geographic Details

Land Area: 5.64 mi²
Water Area: 0.03 mi²
Population Density: 6574.0 people per mi² (95th percentile)
Bounding Box: 32.901172°N, 32.851753°S, -96.721868°E, -96.771407°W

With 37,052 residents spread across 5.64 square miles, this area has a population density of 6574.0 people per square mile.

Demographics

37,052

Population

90th percentile

$33,546

Median Income

15th percentile

$253,900

Median Home Value

80th percentile

5.64 mi²

Land Area

The median household income in 75231 is $33,546, and the median home value is $253,900. This is below the national average for household income.

Housing

17,796

Total Units

14,689

Occupied Units

82.5%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Dallas, TX.

75201

Dallas

75202

Dallas

75203

Dallas

75204

Dallas

75205

Dallas

75206

Dallas

75207

Dallas

75208

Dallas

75209

Dallas

75210

Dallas

Similar ZIP Codes in Texas

ZIP codes with similar median household income in Texas.

77093

Houston

$31,725

76903

San Angelo

$33,533

79371

Sudan

$37,235

79930

El Paso

$29,942

78407

Corpus Christi

$30,179

76667

Mexia

$36,663

77859

Hearne

$35,625

78832

Brackettville

$33,257

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.