Port St. John, FL population, income and ZIP codes

Port St. John CDP is a mid-size town in Florida, with 24,617 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #174 of 955 ranked by population — larger than 81% of them. The median age here is 45.1 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Port St. John CDP earn a median of $84,214 a year, 7.2% above the national figure of $78,538 and 23% above the $68,617 median for the 775 Florida cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 10% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Port St. John CDP is valued at $262,700, 13.4% below the national figure and 14% below the $305,300 peer median, while median gross rent runs $1,679 a month, 19.4% above the national figure, or roughly $20,148 across a full year. A household on the local median income would put about 23.9% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 3.1×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 93.3% 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.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.