San Castle, Florida Demographics & Population 2026
During the 2020–2024 ACS period, San Castle, Florida had a total population of 3,052, the 599th largest community in Florida, with a median household income of $57,228, which is 23% lower than the state average. The poverty rate is 19.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- One of the most racially diverse communities in Florida (diversity index: 70/100).
- Unemployment rate of 8.6% is notably above the national average.
San Castle Quick Facts
How San Castle Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 3,159 | 3,052 | -3.4% |
| Median household income | $51,615 | $57,228 | +10.9% |
| Median home value | $256,400 | $303,900 | +18.5% |
How San Castle Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
This community is exceptionally diverse, with no single racial or ethnic group dominating the population.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
San Castle Rankings in Florida
Explore Florida Rankings
Other Cities in Palm Beach County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| West Palm Beach | 122,290 | $73,446 | 14.1% | $414,200 |
| Boca Raton | 100,234 | $106,273 | 10.0% | $722,700 |
| Boynton Beach | 81,435 | $70,074 | 13.7% | $351,100 |
| Delray Beach | 67,979 | $82,041 | 13.0% | $420,300 |
| Wellington | 62,146 | $115,632 | 7.8% | $599,400 |
| Jupiter | 61,883 | $110,240 | 9.5% | $608,600 |
| Palm Beach Gardens | 60,959 | $106,947 | 7.2% | $606,100 |
| Greenacres | 44,373 | $70,491 | 14.8% | $291,000 |
| Lake Worth Beach | 43,365 | $61,200 | 21.2% | $401,200 |
| The Acreage | 40,843 | $109,032 | 4.6% | $524,800 |
Cities Similar to San Castle
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Hill 'n Dale | 3,083 | $57,500 | $185,300 | 14.4% | 10.1% |
| Williston | 3,154 | $61,111 | $252,700 | 21.7% | 15.8% |
| Hilliard | 3,034 | $65,096 | $239,500 | 11.7% | 25.2% |
| Hurlburt Field | 2,951 | $61,731 | N/A | 39.5% | 1.3% |
| Chattahoochee | 2,979 | $51,964 | $101,700 | 8.2% | 61.7% |
Population Overview
San Castle is a small community located in Florida, within Palm Beach County. The total population is 3,052. It ranks as the 599th most populous out of 955 Census-designated places in Florida.
Age Demographics
The median age in San Castle is 36.4 years. This is 15% lower than the state median of 42.6 years.
Economy, Income & Housing
The median household income in San Castle is $57,228. This is 23% lower than the state median of $74,568. It is also 29% lower than the national median of $80,734. The poverty rate stands at 19.0%. This is 51% higher than the state poverty rate of 12.6%. The unemployment rate is 8.6%. This is 78% higher than the state rate of 4.8%. The median home value is $303,900. Housing costs are 15% lower than the state median of $359,000. The home-value-to-income ratio is 5.3x. 64.3% of occupied housing units are owner-occupied. This homeownership rate is 5% lower than the state average of 67.6%.
Race & Ethnicity
San Castle is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. White (non-Hispanic) residents account for 31.7%. The Black or African American population is significantly higher than the state average (32.0% vs 14.6%).
Education
17.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 49% lower 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 68.8%.
Data Sources & Methodology
All demographic data for San Castle, 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 San Castle, Florida?
San Castle, Florida has a population of 3,052 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in San Castle, FL?
The median household income in San Castle is $57,228, which is 29% lower than the national median of $80,734.
What is the poverty rate in San Castle, FL?
The poverty rate in San Castle is 19.0%. This means approximately 581 residents live below the federal poverty line.
What is the racial makeup of San Castle, Florida?
San Castle's population is 31.7% White, 32.0% Black, 30.9% Hispanic/Latino, and 3.7% Asian.
What is the median home value in San Castle, FL?
The median home value in San Castle is $303,900. The home-value-to-income ratio is 5.3x.
How educated is San Castle, Florida?
17.6% of adults (25+) in San Castle hold a bachelor's degree or higher, and 3.2% hold a graduate or professional degree.