🇺🇸 United States ZIP Code

STANDARD

78636

Johnson City

ZIP Code 78636 is a standard zip code serving Johnson City, Johnson City, Texas (TX), in Blanco County, United States. It has an estimated population of 3,749 with a median household income of $47,660. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 30.294800
Longitude: -98.369100

Geographic Details

Land Area: 349.69 mi²
Water Area: 2.77 mi²
Population Density: 11.0 people per mi² (10th percentile)
Bounding Box: 30.494987°N, 30.141148°S, -98.198188°E, -98.590989°W

With 3,749 residents spread across 349.69 square miles, this area has a population density of 11.0 people per square mile.

Demographics

3,749

Population

50th percentile

$47,660

Median Income

45th percentile

$159,200

Median Home Value

60th percentile

349.69 mi²

Land Area

The median household income in 78636 is $47,660, and the median home value is $159,200.

Housing

2,019

Total Units

1,561

Occupied Units

77.3%

Occupancy Rate

Similar ZIP Codes in Texas

ZIP codes with similar median household income in Texas.

79022

Dalhart

$49,521

79735

Fort Stockton

$45,291

79512

Colorado City

$47,954

75763

Frankston

$46,813

77357

New Caney

$48,979

77625

Kountze

$45,515

76449

Graford

$41,797

79035

Friona

$46,467

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.