St. Marys, Georgia Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of St. Marys, Georgia is 18,805 as of the 2023 American Community Survey, making it the 61st-largest city in Georgia. The median household income is $67,271, the median home value is $259,300, and the median age is 33.6.
The population has grown 16.5% since 2010 (17,272 → 20,119).
18,805
Population
737
People / sq mi
$67,271
Median Income
$259,300
Median Home Value
St. Marys covers 25.5 sq mi of land at 737 people per square mile.
About St. Marys, GA
St. Marys is a city in Georgia with a population of 18,805. It ranks #61 among cities in Georgia by population. The median age is 33.6, younger than the national median. The population is 50.4% male and 49.6% female.
The median household income in St. Marys is $67,271, below the US median of $74,580. 19.7% of residents live below the federal poverty level. Home values sit at a median of $259,300, with monthly rent averaging $1,171. The homeownership rate of 55.2% is lower than the national rate of 64.8%.
Educational attainment in St. Marys reflects 27.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 12.0% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 26.3 minutes each way.
St. Marys city Population History (2010-2024)
The city of St. Marys city had a population of 17,272 in 2010 and 20,119 in 2024, a 16.5% growth over 14 years. The peak was 20,119 in 2024. Average annual growth rate: 1.10%.
20,119
Population (2024)
17,272
Population (2010)
20,119
Peak (2024)
1.10%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 17,272 |
| 2011 | 17,141 |
| 2012 | 17,485 |
| 2013 | 17,570 |
| 2014 | 17,752 |
| 2015 | 17,770 |
| 2016 | 17,868 |
| 2017 | 18,028 |
| 2018 | 18,170 |
| 2019 | 18,567 |
| 2020 | 18,534 |
| 2021 | 18,644 |
| 2022 | 19,008 |
| 2023 | 19,552 |
| 2024 | 20,119 |
Race & Ethnicity
| White | 72.9% |
| Black or African American | 15.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Economy & Income
$67,271
Median Household Income
$34,958
Per Capita Income
19.7%
Poverty Rate
4.6%
Unemployment Rate
Housing
$259,300
Median Home Value
$1,171
Median Rent
55.2%
Owner-Occupied
Education
93.3%
High School+
27.2%
Bachelor's+
Commute
0.1%
Drive Alone
75.1%
Public Transit
12.0%
Work From Home
26.3 min
Avg Commute
Community Profile
64.6%
Foreign Born
94.7%
Non-English at Home
17.4%
Veterans
18.5%
With Disability
92.4%
Health Insurance
98.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 16.4% |
| Education, Health Care & Social Services | 15.3% |
| Manufacturing | 12.0% |
| Finance, Insurance & Real Estate | 11.1% |
| Retail Trade | 6.5% |
| Public Administration | 6.1% |
| Information | 4.5% |
| Construction | 4.2% |
| Arts, Entertainment & Food Services | 2.9% |
| Agriculture & Mining | 1.0% |
| Transportation & Warehousing | 0.6% |
Largest cities in Georgia
Largest counties in Georgia
Part of Georgia
Metro areas in Georgia
City rankings
Frequently Asked Questions
St. Marys, Georgia has a population of 18,805 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 61st-largest city in Georgia.
The median household income in St. Marys, Georgia is $67,271, with 19.7% of residents living below the federal poverty level.
The median home value in St. Marys, Georgia is $259,300, with median monthly rent at $1,171 and a homeownership rate of 55.2%.
The median age in St. Marys, Georgia is 33.6 years. The population is 50.4% male and 49.6% female.
The population has grown 16.5% since 2010 (17,272 → 20,119).
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.