🇺🇸 United States ZIP Code

STANDARD

31091

Unadilla

ZIP Code 31091 is a standard zip code serving Unadilla, Unadilla, Georgia (GA), in Dooly County, United States. It has an estimated population of 5,189 with a median household income of $31,010. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 32.255800
Longitude: -83.744700

Geographic Details

Land Area: 86.77 mi²
Water Area: 1.38 mi²
Population Density: 60.0 people per mi² (40th percentile)
Bounding Box: 32.299991°N, 32.156274°S, -83.586913°E, -83.855625°W

With 5,189 residents spread across 86.77 square miles, this area has a population density of 60.0 people per square mile.

Demographics

5,189

Population

55th percentile

$31,010

Median Income

10th percentile

$70,100

Median Home Value

10th percentile

86.77 mi²

Land Area

The median household income in 31091 is $31,010, and the median home value is $70,100. This is below the national average for household income.

Housing

1,674

Total Units

1,432

Occupied Units

85.5%

Occupancy Rate

Similar ZIP Codes in Georgia

ZIP codes with similar median household income in Georgia.

39823

Blakely

$29,473

30904

Augusta

$30,691

31803

Buena Vista

$31,815

31562

Saint George

$35,027

31750

Fitzgerald

$29,934

30742

Fort Oglethorpe

$35,764

39840

Cuthbert

$29,157

31078

Roberta

$30,417

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.