Castalian Springs

County:: Sumner County
County Seat:: No
Area (mi²):: 5.817
State:: Tennessee

Castalian Springs is a CDP located in Sumner County, Tennessee. Castalian Springs has a 2025 population of 636. Castalian Springs is currently growing at a rate of 0.79% annually and its population has increased by 60.2% since the most recent census, which recorded a population of 397 in 2020.

The average household income in Castalian Springs is $92,638 with a poverty rate of 7.25%.The median age in Castalian Springs is 45 years: 49.2 years for males, and 42.7 years for females.

Demographics

The racial composition of Castalian Springs includes 92.28% White, and smaller percentages for Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	598	92.28%
Two or more races	41	6.33%
Asian	9	1.39%

Castalian Springs Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Castalian Springs' average per capita income is $62,701. Household income levels show a median of $86,071. The poverty rate stands at 7.25%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$119,583	-
Families	$118,095	$106,769
Households	$86,071	$92,638
Non Families	$34,527	$58,797

$62,701

Average Income

$86,071

Median Household Income

7.25%

Poverty Rate