Glen St. Mary, FL population, income and ZIP codes

Glen St. Mary town is a very small community in Florida, with 616 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #839 of 955 ranked by population — larger than 12% of them. The median age here is 29.6 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. 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 Glen St. Mary town earn a median of $51,691 a year, 34.2% below the national figure of $78,538 and 25% below the $68,617 median for the 775 Florida cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 34.1% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in Glen St. Mary town is valued at $223,900, 26.2% below the national figure and 27% below the $305,300 peer median, while median gross rent runs $1,012 a month, 28% below the national figure, or roughly $12,144 across a full year. A household on the local median income would put about 23.5% 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 4.3×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 62.3% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

A median age of 29.6 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address. With 616 residents, a handful of survey responses moves every median on this page. Compare Glen St. Mary town against its county rather than against national figures.

All values below were released by the Census for this exact geography, with no gap-filling on our side. 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.