St. Augustine South, Florida Demographics & Population 2026
Demographic data: ACS 2020–2024 five-year estimates. Sources and methodology
During the 2020–2024 ACS period, St. Augustine South, Florida had a total population of 4,714, the 497th largest community in Florida, with a median household income of $75,996, which is 2% higher than the state average. The poverty rate is 1.8%.
Key Takeaways
- An exceptionally low poverty rate of 1.8% — among the lowest in Florida.
St. Augustine South Quick Facts
How St. Augustine South Changed
Change from the non-overlapping 2015–2019 ACS period to 2020–2024. Earlier dollar figures are adjusted to 2024 dollars; changes marked “no clear change” are within the combined 90% margins of error.
| Metric | 2015–2019 | 2020–2024 | Change |
|---|---|---|---|
| Population | 5,431 | 4,714 | No clear change (-13.2%) |
| Median household income | $81,923 | $75,996 | No clear change (-7.2%) |
| Median home value¹ | $256,480 | $347,400 | +35.4% |
| Median gross rent | $1,605 | $1,448 | No clear change (-9.8%) |
How St. Augustine South Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
- White: 85.7%
- Black: 0.2%
- Hispanic: 7.6%
- Asian: 5.1%
- Other: 0.0%
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
- < High School: 4.8%
- HS Diploma: 19.9%
- Some College: 22.6%
- Associate's: 9.7%
- Bachelor's: 28.3%
- Graduate+: 14.8%
St. Augustine South Rankings in Florida
Explore Florida Rankings
Other Cities in St. Johns County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Fruit Cove | 35,877 | $141,863 | 2.7% | $484,000 |
| Nocatee | 27,442 | $141,868 | 6.2% | $648,800 |
| World Golf Village | 26,077 | $117,212 | 5.3% | $477,000 |
| Palm Valley | 19,796 | $116,625 | 4.2% | $690,800 |
| St. Augustine | 15,351 | $78,151 | 14.1% | $439,800 |
| St. Augustine Shores | 9,462 | $73,688 | 5.0% | $339,300 |
| St. Augustine Beach | 6,860 | $100,802 | 8.1% | $634,400 |
| Sawgrass | 4,929 | $122,500 | 7.8% | $888,500 |
| Butler Beach | 4,610 | $76,689 | 10.1% | $493,100 |
| Flagler Estates | 4,321 | $75,957 | 11.4% | $213,300 |
Cities Similar to St. Augustine South
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Butler Beach | 4,610 | $76,689 | $493,100 | 50.4% | 10.1% |
| Plantation (Sarasota County) | 4,531 | $78,404 | $417,700 | 42.0% | 5.6% |
| Alturas | 4,581 | $70,231 | $165,800 | 11.3% | 15.5% |
| Flagler Estates | 4,321 | $75,957 | $213,300 | 9.7% | 11.4% |
| Parker | 4,509 | $69,657 | $224,200 | 23.0% | 6.8% |
Population Overview
St. Augustine South is a small community located in Florida, within St. Johns County. The total population is 4,714. It ranks as the 497th most populous out of 955 Census-designated places in Florida.
Age Demographics
The median age in St. Augustine South is 50.4 years. This is 18% higher than the state median of 42.6 years. Only 13.3% of residents are under 18, indicating fewer families with children. 12.3% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in St. Augustine South is $75,996. This is 2% higher than the state median of $74,568. It is also 6% lower than the national median of $80,734. The poverty rate stands at 1.8%. This is 86% lower than the state poverty rate of 12.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 2.6%. This is 46% lower than the state rate of 4.8%. The median home value is $347,400. Housing costs are 3% lower than the state median of $359,000. The home-value-to-income ratio is 4.6x. 94.3% of occupied housing units are owner-occupied. This homeownership rate is 39% higher than the state average of 67.6%.
Race & Ethnicity
St. Augustine South has a predominantly White (non-Hispanic) population, comprising 85.7% of all residents. Hispanic or Latino residents account for 7.6%. The White (non-Hispanic) population is significantly higher than the state average (85.7% vs 50.4%). The Black or African American population (0.2%) is well below the state average of 14.6%. The Hispanic or Latino population (7.6%) is well below the state average of 27.4%. The Asian population is significantly higher than the state average (5.1% vs 2.9%).
Education
43.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 26% higher than the state rate of 34.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.3%.
Data Sources & Methodology
All demographic data for St. Augustine South, Florida is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Florida state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 955 Census-designated places in Florida. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of St. Augustine South, Florida?
St. Augustine South, Florida has a population of 4,714 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in St. Augustine South, FL?
The median household income in St. Augustine South is $75,996, which is 6% lower than the national median of $80,734.
What is the poverty rate in St. Augustine South, FL?
The poverty rate in St. Augustine South is 1.8%. This means approximately 85 residents live below the federal poverty line.
What is the racial makeup of St. Augustine South, Florida?
St. Augustine South's population is 85.7% White, 0.2% Black, 7.6% Hispanic/Latino, and 5.1% Asian.
What is the median home value in St. Augustine South, FL?
The median home value in St. Augustine South is $347,400. The home-value-to-income ratio is 4.6x.
How educated is St. Augustine South, Florida?
43.1% of adults (25+) in St. Augustine South hold a bachelor's degree or higher, and 14.8% hold a graduate or professional degree.