Castalian Springs CDP, Tennessee Demographics & Population 2026

Population Overview

Castalian Springs CDP is a small community located in Tennessee. The total population is 648. It ranks as the 354th most populous out of 504 cities and towns in Tennessee.

Age Demographics

The median age in Castalian Springs CDP is 45.0 years. This is 16% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Castalian Springs CDP is $86,071. This is 28% higher than the state median of $67,097. Compared to the national median of $78,538, household income here is 10% higher. The poverty rate stands at 7.2%. This is 47% lower than the state poverty rate of 13.8%. The unemployment rate is 0.0%. This is 100% lower than the state rate of 4.7%. The median home value is $250,000. Housing costs are 3% lower than the state median of $256,800. With a home-value-to-income ratio of just 2.9x, Castalian Springs CDP is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 49% higher than the state average of 67.0%.

Race & Ethnicity

Castalian Springs CDP has a predominantly White (non-Hispanic) population, comprising 92.3% of all residents. Asian residents account for 1.4%.

Education

33.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% higher than the state rate of 30.4%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.2%. Notably, 15.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Castalian Springs CDP, Tennessee 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 Tennessee state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 504 Census-designated places in Tennessee. For official data, visit data.census.gov.