San Castle is a CDP located in Palm Beach County, Florida. San Castle has a 2025 population of 3,133 . San Castle is currently declining at a rate of -0.63% annually and its population has decreased by -22.85% since the most recent census, which recorded a population of 4,061 in 2020.
The average household income in San Castle is $70,929 with a poverty rate of 24.12%. The median age in San Castle is 36.7 years: 32 years for males, and 40.6 years for females. For every 100 females there are 123.4 males.
Data after 2023 is projected based on recent change
The racial composition of San Castle includes 36.53% White, 32.8% Black or African American, 10.6% other race, and smaller percentages for Native American and multiracial populations.
White (36.53%)
Black or African American (32.8%)
Two or more races (17.79%)
Other race (10.6%)
Native American (2.28%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,154 | 36.53% |
| Black or African American | 1,036 | 32.8% |
| Two or more races | 562 | 17.79% |
| Other race | 335 | 10.6% |
| Native American | 72 | 2.28% |
Married
Widowed
Divorced
Separated
Never Married
San Castle's average per capita income is $32,989. Household income levels show a median of $51,615. The poverty rate stands at 24.12%.
Name | Median | Mean |
|---|---|---|
| Married Families | $53,618 | - |
| Families | $51,962 | $74,606 |
| Households | $51,615 | $70,929 |
| Non Families | $46,125 | $59,768 |
Average Income
Median Household Income
Poverty Rate