Saint Marys, GA · standard
ZIP Code 31558
Camden County, Georgia - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 20,373
- 104/sq mi
- $74,268
- Median income
- $297,000
- Median home value
- 27.1%
- Bachelor's or higher
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 31558 (Saint Marys, GA) rose +4.4% from 2023 to 2024. The all-transactions index moved from 280.6 in 2023 to 293.0 in 2024 (2000 = 100).
ZIP code 31558 is a densely settled ZIP (a standard USPS delivery area) in Saint Marys, Camden County, Georgia, with 20,373 residents across 196.8 square miles, a density of 104 people per square mile, in the New York time zone.
ZIP 31558 lands in the middle-income range, with a median household income of $74,268 (6% above the average Georgia ZIP), while per-capita income is $35,708. The poverty rate is 17.7%, with unemployment at 7.2%; those measures add context to the income figure. Median home value is $297,000 (23% above the average Georgia ZIP) and median rent is $1,265; 58.8% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 27.1% of adults hold a bachelor's degree or higher, the median age is 33, and the average commute is 25 minutes. The page also surfaces 1 ZIP codes within roughly 10 miles and 5 more in Camden County, so 31558 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 31558
Top 5 sectors by establishment count in Saint Marys, GA
Which industries have the most business establishments in ZIP 31558.
- Health care and social assistance
Health care and social assistance
66 establishments
- Retail trade
Retail trade
60 establishments
- Other services (except public administration)
Other services (except public administration)
51 establishments
- Accommodation and food services
Accommodation and food services
48 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
37 establishments
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 + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 31558, Saint Marys, GA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; 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
Who lives in ZIP 31558?
33.0
Median Age
50.8%
Male
49.2%
Female
2.9%
Foreign-Born
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 ZIP avg
$35,708
Per Capita Income
17.7%
Poverty Rate
7.2%
Unemployment Rate
25.2 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
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
$297,000
Median Home Value
+23% vs state ZIP avg
$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
15
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 |