ZIP code 33813

ZIP 33813 is a small city in Polk County, Florida, with 38,112 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #161 of 1,013 ranked by population — larger than 84% of them. The median age here is 39.9 years against 39.1 nationally, a slightly older profile than the country as a whole. 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 ZIP 33813 earn a median of $96,723 a year, 23.2% above the national figure of $78,538. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 8.1% of residents here, below the 12.4% national rate.

The typical owner-occupied home in ZIP 33813 is valued at $330,100, 8.8% above the national figure, while median gross rent runs $1,637 a month, 16.4% above the national figure, or roughly $19,644 across a full year. A household on the local median income would put about 20.3% 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 3.4×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 77.3% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

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.

ZIP 33813 is tabulated inside Polk County, Florida, one of 40 ZIP areas the Census publishes for that county and 1,013 across Florida. This is a dense urban ZIP, where a single postal boundary can hold more residents than an entire rural county. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 33813 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 33813 reports a median household income of $96,723, 55% above the $62,373 county median, and 39% above the $69,820 typical FL ZIP. Owner-occupied homes are valued at a median of $330,100, 53% above the county figure and 12% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $1,637 a month, which is why it reads higher than the advertised rent on a listing for the same unit.

Florida charges 6% statewide, and local governments overlapping 33813 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 33813 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.