🇺🇸 United States ZIP Code

STANDARD

31021

Dublin

ZIP Code 31021 is a standard zip code serving Dublin, Dublin, Georgia (GA), in Laurens County, United States. It has an estimated population of 28,549 with a median household income of $36,654. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 32.459300
Longitude: -82.938100

Geographic Details

Land Area: 239.43 mi²
Water Area: 3.02 mi²
Population Density: 119.0 people per mi² (55th percentile)
Bounding Box: 32.708318°N, 32.223587°S, -82.772091°E, -83.122207°W

With 28,549 residents spread across 239.43 square miles, this area has a population density of 119.0 people per square mile.

Demographics

28,549

Population

85th percentile

$36,654

Median Income

20th percentile

$96,600

Median Home Value

30th percentile

239.43 mi²

Land Area

The median household income in 31021 is $36,654, and the median home value is $96,600. This is below the national average for household income.

Housing

12,471

Total Units

11,062

Occupied Units

88.7%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Dublin, GA.

31040

Dublin

Similar ZIP Codes in Georgia

ZIP codes with similar median household income in Georgia.

30755

Tunnel Hill

$40,218

30522

Cherry Log

$41,208

30473

Uvalda

$36,651

31094

Warthen

$38,561

30286

Thomaston

$34,446

30516

Bowersville

$35,625

30605

Athens

$31,319

30667

Stephens

$39,315

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.