🇺🇸 United States ZIP Code

STANDARD

78595

Sullivan City

ZIP Code 78595 is a standard zip code serving Sullivan City, Sullivan City, Texas (TX), in Hidalgo County, United States. It has an estimated population of 6,082 with a median household income of $24,464. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 26.272000
Longitude: -98.562700

Geographic Details

Land Area: 14.98 mi²
Population Density: 406.0 people per mi² (70th percentile)
Bounding Box: 26.344041°N, 26.253704°S, -98.516745°E, -98.582701°W

With 6,082 residents spread across 14.98 square miles, this area has a population density of 406.0 people per square mile.

Demographics

6,082

Population

60th percentile

$24,464

Median Income

$53,200

Median Home Value

5th percentile

14.98 mi²

Land Area

The median household income in 78595 is $24,464, and the median home value is $53,200.

Housing

1,692

Total Units

1,551

Occupied Units

91.7%

Occupancy Rate

Similar ZIP Codes in Texas

ZIP codes with similar median household income in Texas.

78829

Batesville

$20,536

78582

Rio Grande City

$27,337

79845

Presidio

$21,512

75203

Dallas

$28,602

76661

Marlin

$28,346

79853

Tornillo

$27,870

79907

El Paso

$27,166

76115

Fort Worth

$27,806

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.