Saint Marys, GA · standard

ZIP Code 31558

Camden County, Georgia — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

Reviewed by PlainZIP Editorial Team, ZIP Code Data Editors · June 13, 2026

20,373
104/sq mi: $74,268
Median income: $297,000
Median home value: 27.1%
Bachelor's or higher

The verdict

Saint Marys pairs an above-median household income with above-median home values, in a rural, mixed-tenure area.

Top 46%
household income, US ZIPs: Top 34%
home value, US ZIPs: 104
people per sq mi: 59%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 31558 against every reporting US ZIP.

ZIP code 31558 is classified by USPS as a standard delivery area and covers roughly 196.8 square miles in Saint Marys, Camden County, Georgia. The area is home to 20,373 residents, producing a population density of 104 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 31558 against Georgia and the nation.

On the economic side, the median household income for ZIP 31558 sits at $74,268 (6% above the Georgia average), while per-capita income is $35,708. The poverty rate stands at 17.7% and the unemployment rate at 7.2%. On housing, the median home value is $297,000 (23% above the state average) with median rent at $1,265 per month, and 58.8% of occupied units are owner-occupied, a direct signal of whether 31558 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 27.1% of adults hold a bachelor's degree or higher, the median age is 33, and the average commute is 25 minutes. We also surface 1 nearby ZIP codes within roughly 10 miles and 5 additional ZIPs sharing Camden County, so you can benchmark 31558 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 31558

Health care and social assistance

66
Retail trade

60
Other services (except public administration)

51
Accommodation and food services

48
Professional, scientific, and technical services

37

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 31558, Saint Marys, GA · 2023 Accessed 2026-06-13 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

20,373

Population

196.8

Area (sq mi)

104

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard

Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.

View Scorecard →

Who lives in ZIP 31558?

33.0

Median Age

50.8%

Male

49.2%

Female

2.9%

Foreign-Born

White 72.4%

African American 13.8%

Asian 1.6%

American Indian or Alaska Native 0.2%

Native Hawaiian or Pacific Islander 0.1%

Two or More Ethnicities 9.2%

Hispanic or Latino 8.4%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$74,268

Median Household Income

+6% vs state

$35,708

Per Capita Income

17.7%

Poverty Rate

7.2%

Unemployment Rate

25.2 min

Mean Commute Time

How ZIP 31558 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$74,268 Top 46% higher than 54% of 30,318 US ZIPs

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 55.7%

Bachelor's Degree or Higher 27.1%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

9,321

Total Housing Units

8,625

Occupied Units

696

Vacant Units

2.60

Avg Household Size

Occupancy Type

Owner 58.8%

Renter 41.2%

$297,000

Median Home Value

+23% vs state

$1,265

Median Rent

1993

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+4.4%

YoY Change (2024)

293

HPI Index (2000 = 100)

+193%

Total Change Since 2000

Home values in ZIP 31558 have increased 4.4% over the past year (2024). Since 2000, this ZIP has seen +193% cumulative appreciation.

Year	Annual Change	HPI Index
2020	+4.0%	181
2021	+11.4%	201
2022	+26.8%	255
2023	+9.9%	281
2024	+4.4%	293

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 395 business establishments in ZIP 31558, employing approximately 3,822 people with a combined annual payroll of $143,189,000.

395

Businesses

3,822

Employees

$143.2M

Annual Payroll

Industry Sectors

Industry	Establishments	% of Total
Health care and social assistance	66	16.7%
Retail trade	60	15.2%
Other services (except public administration)	51	12.9%
Accommodation and food services	48	12.2%
Professional, scientific, and technical services	37	9.4%
Finance and insurance	27	6.8%
Real estate and rental and leasing	26	6.6%
Construction	20	5.1%
Administrative and support and waste management and remediation services	16	4.0%
Information	11	2.8%
Manufacturing	9	2.3%
Transportation and warehousing	8	2.0%
Educational services	6	1.5%
Wholesale trade	4	1.0%
Arts, entertainment, and recreation	3	0.8%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 31558 vs 31547 →

ZIP Code	City	Population	Distance
31547	Kings Bay, GA	1,293	3.7 mi

More ZIP Codes in Camden County

Camden County Saint Marys, GA Georgia

Frequently Asked Questions

What county is ZIP code 31558 in? ▼

ZIP code 31558 (Saint Marys) is located in Camden County, Georgia. Camden County contains multiple ZIP codes, see the full list at /counties/camden-ga.

What is the population of ZIP code 31558? ▼

ZIP code 31558 in Saint Marys, GA has a population of 20,373 according to the Census Bureau ACS 2023 estimates.

What is the median household income in ZIP 31558? ▼

The median household income in ZIP 31558 is $74,268, which is 3% below the national average of $76,288.

What is the average home value in ZIP 31558? ▼

The median home value in ZIP 31558 is $297,000, which is 7% above the national average of $278,155.

What is the demographic makeup of ZIP 31558? ▼

The largest racial group in ZIP 31558 is White at 72.4%. Hispanic or Latino residents make up 8.4% of the population.

How many businesses are in ZIP code 31558? ▼

ZIP code 31558 has 395 business establishments employing approximately 3,822 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.

What are the main industries in ZIP code 31558? ▼

The top industries by establishment count in ZIP 31558 are: Health care and social assistance (66), Retail trade (60), Other services (except public administration) (51). There are 15 industry sectors represented in total.

How have home values changed in ZIP code 31558? ▼

According to the FHFA House Price Index, home values in ZIP 31558 increased by 4.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 193%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.

What is the education level in ZIP code 31558? ▼

In ZIP code 31558, 55.7% of residents aged 25+ have a high school diploma or higher, and 27.1% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).

What is the average commute time in ZIP 31558? ▼

The mean commute time for workers in ZIP code 31558 is 25.2 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.

What percentage of residents own vs. rent in ZIP 31558? ▼

In ZIP code 31558, approximately 58.8% of occupied housing units are owner-occupied and 41.2% are renter-occupied, based on Census ACS 2023 data.

What is the poverty rate in ZIP code 31558? ▼

The poverty rate in ZIP code 31558 is 17.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.