San Castle, Florida real estate market data.

Scott Brown — eXp Realty

Licensed in Florida (#3641772). Text for the fastest response — call routing to this number is still being confirmed.

What can I afford?

Estimate a comfortable price range in under a minute, then connect with a lender for real numbers.

Rough estimate only (28% of income toward housing, ~6.5% illustrative rate, 30-year term) — not a loan offer or pre-qualification. Connect with a lender for real numbers →

Advertise to local buyers

Lenders, inspectors, movers, and other local pros — this spot is open.

Home Value, By Source

The Census Bureau's American Community Survey (2023 5-year estimate) puts San Castle's median home value — across all owner-occupied homes, not just recent sales — at $256,400. Separately, Palm Beach County's current median listing price (via Realtor.com data, 2026-06-01) runs $496,200. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.

County Price Trend

Palm Beach County's FHFA house price index shows a 1.16% annual change in 2025.

Population & Income

San Castle has an estimated population of 3,159 and a median household income of $51,615, per the Census Bureau's American Community Survey (2023 5-year estimate).

Affordability Snapshot

San Castle's Census-reported median home value works out to about 5.0x the area's median household income, and median gross rent runs roughly 37% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.