St. Augustine is home to 15,351 people in Florida. At a median age of 49.9, this is an older place than the country as a whole. 3,759 more people live here than in 2000. 45% of adults hold a bachelor's degree or higher. Density works out to 1,612 people per square mile. 7% of people here were born outside the United States.
At a glance
Average income
median household income $78,151, near the US median
US median: $82,259
Older
median age 49.9
US median: 38.9
More educated
45% hold a bachelor's degree
US average: 36%
Less affordable
home values up 116%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about St. Augustine
What changed most since 1990
White share74.5% → 84.1%(+9.5 pts)US over the same years: −17.8 pts
Median home value (2024 dollars)$145,204 → $439,800(+203%)US over the same years: +67%
Black share19.4% → 3.4%(−16.0 pts)US over the same years: +0.2 pts
St. Augustine's population equals 5.0% of St. Johns County's. Its number of households without a car equals 16% of the county's. Its number of residents living in poverty equals 11% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)27.3%(359)
US avg: 26.4%
Gulf War (1990s)25.6%(336)
US avg: 24.3%
Vietnam era38.3%(503)
US avg: 33.1%
Korean War4.4%(58)
US avg: 4.5%
World War II0.5%(7)
US avg: 1%
Share of the 1,314 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
St. Augustine, decade by decade
St. Augustine population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
11,692
$52,134
$145,204
23.5%
50.5
2000
11,592
$58,945
$203,661
29.5%
43.4
2010
12,975
$52,399
$375,323
31.9%
42.1
2020
14,329
$73,274
$357,067
37.4%
45.9
2024
15,351
$78,151
$439,800
44.6%
35.7
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
