🇺🇸 United States ZIP Code

STANDARD

78644

Lockhart

ZIP Code 78644 is a standard zip code serving Lockhart, Lockhart, Texas (TX), in Caldwell County, United States. It has an estimated population of 17,081 with a median household income of $46,967. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 29.886800
Longitude: -97.676900

Geographic Details

Land Area: 186.61 mi²
Water Area: 0.71 mi²
Population Density: 92.0 people per mi² (50th percentile)
Bounding Box: 30.030523°N, 29.752146°S, -97.528219°E, -97.815102°W

With 17,081 residents spread across 186.61 square miles, this area has a population density of 92.0 people per square mile.

Demographics

17,081

Population

75th percentile

$46,967

Median Income

45th percentile

$119,000

Median Home Value

45th percentile

186.61 mi²

Land Area

The median household income in 78644 is $46,967, and the median home value is $119,000.

Housing

6,178

Total Units

5,572

Occupied Units

90.2%

Occupancy Rate

Similar ZIP Codes in Texas

ZIP codes with similar median household income in Texas.

78704

Austin

$50,930

77331

Coldspring

$41,596

76691

West

$50,000

76309

Wichita Falls

$46,038

75471

Pickton

$42,321

76486

Perrin

$53,906

79092

Vega

$44,632

78240

San Antonio

$48,281

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.