Castalian Springs, TN population, income and ZIP codes

Castalian Springs CDP is a very small community in Tennessee, with 648 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #354 of 504 ranked by population — larger than 29% of them. The median age here is 45 years against 39.1 nationally, a slightly older profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Castalian Springs CDP earn a median of $86,071 a year, 9.6% above the national figure of $78,538 and 54% above the $55,988 median for the 307 Tennessee cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 7.3% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Castalian Springs CDP is valued at $250,000, 17.6% below the national figure and 31% above the $191,100 peer median, while median gross rent runs not published a month. The home-price-to-income ratio works out to 2.9×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 100% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

With 648 residents, a handful of survey responses moves every median on this page. Compare Castalian Springs CDP against its county rather than against national figures.

The Census withheld gross rent for Castalian Springs CDP because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.