🇺🇸 United States ZIP Code

STANDARD

30030

Decatur

ZIP Code 30030 is a standard zip code serving Decatur, Decatur, Georgia (GA), in DeKalb County, United States. It has an estimated population of 26,473 with a median household income of $66,134. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Georgia (GA)
County: DeKalb
City: Decatur
Timezone: America/New_York

Coordinates

Latitude: 33.769900
Longitude: -84.295000

Geographic Details

Land Area: 6.51 mi²
Water Area: 0.01 mi²
Population Density: 4065.0 people per mi² (90th percentile)
Bounding Box: 33.793850°N, 33.747975°S, -84.264755°E, -84.320379°W

With 26,473 residents spread across 6.51 square miles, this area has a population density of 4065.0 people per square mile.

Demographics

26,473

Population

85th percentile

$66,134

Median Income

80th percentile

$307,800

Median Home Value

85th percentile

6.51 mi²

Land Area

The median household income in 30030 is $66,134, and the median home value is $307,800. This places the area in the top 25% nationally for household income.

Housing

13,327

Total Units

12,232

Occupied Units

91.8%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Decatur, GA.

30031

Decatur

30032

Decatur

30033

Decatur

30034

Decatur

30035

Decatur

30036

Decatur

30037

Decatur

Similar ZIP Codes in Georgia

ZIP codes with similar median household income in Georgia.

31032

Gray

$58,560

30345

Atlanta

$67,335

30141

Hiram

$56,990

30144

Kennesaw

$59,758

31088

Warner Robins

$58,276

30188

Woodstock

$69,186

31807

Ellerslie

$75,563

31721

Albany

$61,026

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.