Zip Code 31558
Saint Marys, Georgia — Camden County
📍 ZIP code 31558 is in Saint Marys, Camden County, Georgia.
ZIP code 31558 is located in Saint Marys, Camden County, Georgia. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 22,498. The area code for ZIP code 31558 is 229.
Quick Answer
Zip code 31558 is in Saint Marys, Georgia (Camden County). It has a population of 22,498, median household income of $67,761, and median home value of $250,700.
Population
22,498
Income
$67,761
Home Value
$250,700
Climate
89°F / 43°F
About Zip Code 31558
Zip code 31558 is located in Saint Marys, Georgia, within Camden County. Home to approximately 22,498 residents, this area sits at an elevation of 24 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 229.
The median household income is $67,761 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $250,700, and the cost of living index is 87 (13% below the national average of 100).
Summers average a high of 89°F while winters drop to 43°F. The area receives about 47 in of rain annually. The zip code covers 76 square miles of land area and 26 square miles of water.
Key Statistics
22,498
$67,761
$250,700
Eastern (EST/EDT)
229
24 ft
76 sq mi
32.7
9,729
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Compare With Nearby Zip Codes
| Metric | 31558 | 31527 | 31569 | 31565 | 31548 | 31520 |
|---|---|---|---|---|---|---|
| City | Saint Marys, GA | Brunswick, GA | Woodbine, GA | Waverly, GA | Kingsland, GA | Brunswick, GA |
| Population | 22,498 | 1,078 | 4,998 | 2,210 | 24,034 | 22,743 |
| Median Income | $67,761 | $76,445 | $72,275 | $72,054 | $77,913 | $37,652 |
| Home Value | $250,700 | $522,100 | $220,000 | $231,300 | $225,500 | $135,100 |
| Cost of Living | 87 | 150 | 75 | 75 | 82 | 60 |
| Median Age | 32.7 | 60.4 | 46.5 | 46.6 | 35 | 36.8 |
Cost of Living
100 = National Average. Saint Marys's cost of living is 13% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
3.7x
Demographics
Zip code 31558 has a population of 22,498 people with a median age of 32.7. There are 9,729 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Saint Marys (31558) population trend from 2010 to 2024
↑ 40.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
43°F
47 in
0 in
Saint Marys experiences warm summers with average highs around 89°F. Winters are mild with lows averaging 43°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$250,700
Median Household Income
$67,761
With 9,729 housing units across 76 square miles, 31558 has a housing density of 128 units per square mile. The home price-to-income ratio is 3.7x.
Location & Geography
Latitude
30.8994°
Longitude
-81.4275°
Land Area
76 sq mi
Water Area
26 sq mi
Nearby Zip Codes
Zip codes closest to 31558 (Saint Marys, GA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 31558's $67,761. A way to compare Saint Marys to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 31558 (Saint Marys, GA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Saint Marys, Georgia?
Saint Marys, Georgia uses zip code 31558.
What county is zip code 31558 in?
Zip code 31558 is located in Camden County, Georgia.
What is the population of zip code 31558?
The population of zip code 31558 is 22,498 with a median age of 32.7.
Is 31558 in Saint Marys, Georgia?
Yes, zip code 31558 is in Saint Marys, Camden County, Georgia. The area code is 229.
Frequently Asked Questions
What city is zip code 31558 in?
Zip code 31558 is in Saint Marys, Georgia. It is part of Camden County and uses the Eastern (EST/EDT) timezone.
What is zip code 31558?
Zip code 31558 is a U.S. postal code in Saint Marys, Georgia (Camden County). It has a population of 22,498 and covers 76 square miles.
What is the population of zip code 31558?
The population of zip code 31558 (Saint Marys, GA) is 22,498 with a median age of 32.7. There are approximately 9,729 housing units in this area.
What is the median income in zip code 31558?
The median household income in zip code 31558 (Saint Marys, GA) is $67,761 per year. The cost of living index is 87 (100 = national average).
What is the average home price in zip code 31558?
The median home value in zip code 31558 (Saint Marys, GA) is $250,700. The cost of living index is 87 compared to the national average of 100.
What county is zip code 31558 in?
Zip code 31558 is located in Camden County, Georgia. The primary city is Saint Marys.
What is the area code for zip code 31558?
Zip code 31558 in Saint Marys, GA uses area code 229. It is located in the Eastern (EST/EDT) timezone.
Is zip code 31558 a good place to live?
Zip code 31558 (Saint Marys, GA) has a cost of living index of 87 (100 = national average), a median household income of $67,761, and median home values of $250,700. The median age is 32.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 31558?
The cost of living index for zip code 31558 (Saint Marys, GA) is 87, where 100 represents the national average. This area is below the national average. Median home value: $250,700.
What schools serve zip code 31558?
Zip code 31558 in Saint Marys, Georgia is served by the local school district of Camden County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.