🇺🇸 United States ZIP Code

STANDARD

77377

Tomball

ZIP Code 77377 is a standard zip code serving Tomball, Tomball, Texas (TX), in Harris County, United States. It has an estimated population of 28,708 with a median household income of $87,474. 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: Tomball
Timezone: America/Chicago

Coordinates

Latitude: 30.061500
Longitude: -95.682100

Geographic Details

Land Area: 38.89 mi²
Water Area: 0.47 mi²
Population Density: 738.0 people per mi² (75th percentile)
Bounding Box: 30.118107°N, 29.996581°S, -95.582617°E, -95.781540°W

With 28,708 residents spread across 38.89 square miles, this area has a population density of 738.0 people per square mile.

Demographics

28,708

Population

85th percentile

$87,474

Median Income

90th percentile

$193,000

Median Home Value

70th percentile

38.89 mi²

Land Area

The median household income in 77377 is $87,474, and the median home value is $193,000. This places the area in the top 25% nationally for household income.

Housing

10,136

Total Units

9,709

Occupied Units

95.8%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Tomball, TX.

77375

Tomball

Similar ZIP Codes in Texas

ZIP codes with similar median household income in Texas.

77385

Conroe

$82,175

78703

Austin

$80,569

75167

Waxahachie

$76,207

78660

Pflugerville

$76,007

75048

Sachse

$87,171

76054

Hurst

$93,763

77095

Houston

$89,393

78108

Cibolo

$83,743

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.