🇺🇸 United States ZIP Code

STANDARD

31523

Brunswick

ZIP Code 31523 is a standard zip code serving Brunswick, Brunswick, Georgia (GA), in Glynn County, United States. It has an estimated population of 13,229 with a median household income of $57,021. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 31.218900
Longitude: -81.546000

Geographic Details

Land Area: 185.02 mi²
Water Area: 13.14 mi²
Population Density: 72.0 people per mi² (45th percentile)
Bounding Box: 31.408163°N, 31.032141°S, -81.461698°E, -81.782493°W

With 13,229 residents spread across 185.02 square miles, this area has a population density of 72.0 people per square mile.

Demographics

13,229

Population

70th percentile

$57,021

Median Income

65th percentile

$150,900

Median Home Value

60th percentile

185.02 mi²

Land Area

The median household income in 31523 is $57,021, and the median home value is $150,900.

Housing

5,444

Total Units

4,914

Occupied Units

90.3%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Brunswick, GA.

31520

Brunswick

31521

Brunswick

31524

Brunswick

31525

Brunswick

Similar ZIP Codes in Georgia

ZIP codes with similar median household income in Georgia.

30738

Rising Fawn

$51,411

30092

Peachtree Corners

$58,791

30171

Rydal

$59,859

31320

Midway

$49,864

31069

Perry

$51,739

31407

Port Wentworth

$62,760

30084

Tucker

$52,167

31606

Valdosta

$48,861

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.