🇺🇸 United States ZIP Code

STANDARD

30223

Griffin

ZIP Code 30223 is a standard zip code serving Griffin, Griffin, Georgia (GA), in Spalding County, United States. It has an estimated population of 36,769 with a median household income of $36,401. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 33.254900
Longitude: -84.272800

Geographic Details

Land Area: 108.32 mi²
Water Area: 1.92 mi²
Population Density: 339.0 people per mi² (65th percentile)
Bounding Box: 33.352592°N, 33.222924°S, -84.102585°E, -84.439590°W

With 36,769 residents spread across 108.32 square miles, this area has a population density of 339.0 people per square mile.

Demographics

36,769

Population

90th percentile

$36,401

Median Income

20th percentile

$105,800

Median Home Value

35th percentile

108.32 mi²

Land Area

The median household income in 30223 is $36,401, and the median home value is $105,800. This is below the national average for household income.

Housing

15,424

Total Units

13,379

Occupied Units

86.7%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Griffin, GA.

30224

Griffin

Similar ZIP Codes in Georgia

ZIP codes with similar median household income in Georgia.

30117

Carrollton

$36,075

31519

Broxton

$33,367

31803

Buena Vista

$31,815

30295

Zebulon

$40,639

30457

Soperton

$34,152

31090

Toomsboro

$31,000

31094

Warthen

$38,561

30139

Fairmount

$39,286

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.