St. Marys, GA
Population 18,805 · Georgia
About St. Marys, GA
St. Marys is a mid-sized city in Georgia with a population of 18,805 residents. The median household income is $67,271 per year, which is near the national average. The median age in St. Marys is 33.6 years.
Housing in St. Marys has a median home value of $259,300 and median monthly rent of $1,171. Of the 8,258 total housing units, the majority are owner-occupied, with 4,182 owner-occupied and 3,396 renter-occupied units.
The unemployment rate in St. Marys is 8.6% and the poverty rate is 20.4%. 27.2% of residents hold a bachelor's degree or higher. The average commute time is 26.3 minutes.
Cost of Living in St. Marys, GA
Compared to national averages, St. Marys has a median household income of $67,271 (10% below the national median of $75,149). Home values average $259,300, which is 6% above the national median. Monthly rent at $1,171 is 1% above the US average of $1,163. Within Georgia, St. Marys's income is 11% above the state average of $60,815, and home values are 33% above the state median of $194,684.
Why Live in St. Marys, GA?
Potential considerations include median household income ($67,271) that falls below the national average. However, St. Marys’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
St. Marys has a population of 18,805 with a median age of 33.6 years. Compare St. Marys with other cities to see how it stacks up, or explore all cities in Georgia.
Similar Cities Near St. Marys
Cities in Georgia with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Winder | 18,847 | $59,944 | $251,700 | Compare |
| Thomasville | 18,720 | $48,464 | $196,500 | Compare |
| Kingsland | 19,101 | $80,395 | $226,800 | Compare |
| North Decatur | 18,460 | $110,366 | $459,000 | Compare |
| Fayetteville | 19,364 | $82,144 | $331,700 | Compare |
| North Druid Hills | 18,172 | $95,612 | $486,200 | Compare |
| Forest Park | 19,619 | $42,286 | $119,000 | Compare |
| Conyers | 17,916 | $58,141 | $218,000 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Georgia
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about St. Marys
What is the population of St. Marys, GA?
The population of St. Marys, GA is 18,805 according to the latest Census data.
What is the median household income in St. Marys?
The median household income in St. Marys, GA is $67,271 per year.
What is the median home value in St. Marys?
The median home value in St. Marys, GA is $259,300.
What is the average rent in St. Marys?
The median monthly rent in St. Marys, GA is $1,171.
What is the unemployment rate in St. Marys?
The unemployment rate in St. Marys, GA is 8.6%.