St. Augustine South CDP, Florida Demographics & Population 2026

Population Overview

St. Augustine South CDP is a small community located in Florida. The total population is 4,864. It ranks as the 485th most populous out of 953 cities and towns in Florida.

Age Demographics

The median age in St. Augustine South CDP is 50.5 years. This is 19% higher than the state median of 42.6 years. 13.0% 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 CDP is $74,873. This is 4% higher than the state median of $71,711. Compared to the national median of $78,538, household income here is 5% lower. The poverty rate stands at 1.9%. This is 85% 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 2.8%. This is 42% lower than the state rate of 4.8%. The median home value is $319,200. Housing costs are 2% lower than the state median of $325,000. The home-value-to-income ratio is 4.3x. 89.7% of occupied housing units are owner-occupied. This homeownership rate is 33% higher than the state average of 67.3%.

Race & Ethnicity

St. Augustine South CDP has a predominantly White (non-Hispanic) population, comprising 86.6% of all residents. Asian residents account for 5.1%. The White (non-Hispanic) population is significantly higher than the state average (86.6% vs 51.4%). The Black or African American population (0.2%) is well below the state average of 14.8%. The Hispanic or Latino population (5.1%) is well below the state average of 26.8%. The Asian population is significantly higher than the state average (5.1% vs 2.8%).

Education

36.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 9% higher than the state rate of 33.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.3%.

Data Sources & Methodology

All demographic data for St. Augustine South CDP, Florida is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Florida state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 953 Census-designated places in Florida. For official data, visit data.census.gov.