St. Augustine, FL population, income and ZIP codes

St. Augustine city is a mid-size town in Florida, with 14,979 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #257 of 955 ranked by population — larger than 73% of them. The median age here is 46.9 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 St. Augustine city earn a median of $80,473 a year, 2.5% above the national figure of $78,538 and 17% above the $68,617 median for the 775 Florida 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 12.7% of residents here, above the 12.4% national rate.

The typical owner-occupied home in St. Augustine city is valued at $409,200, 34.9% above the national figure and 34% above the $305,300 peer median, while median gross rent runs $1,560 a month, 11% above the national figure, or roughly $18,720 across a full year. A household on the local median income would put about 23.3% 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 5.1×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 63.7% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

Median income runs above the national figure while poverty also runs above it — a split distribution, not a uniformly comfortable place. Averages hide that; the two numbers together do not.

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.