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US ZIP Code Profile

ZIP Code 33881
Winter Haven, Florida

ZIP code 33881 is in Winter Haven, located in Polk County, Florida, within the Lakeland-Winter Haven metro area. Its 2020 Census population was 38,369. The estimated median adjusted gross income per tax return is $36,671, and about 3% of filers report $200,000 or more.

2020 Population
38,369
Census ZCTA
County
Polk
FIPS 12105
Median income (est.)
$36,671
IRS SOI 2022
Land Area
21.845 mi²
+ 6.812 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityWinter Haven, FL
CountyPolk County (FIPS 12105)
StateFlorida (FIPS 12)
Metro Area (MSA)Lakeland-Winter Haven, FL Metro Area (29460)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates28.057789, -81.71741
Land / Water Area21.845 mi² land · 6.812 mi² water

02Income & Economics

Distribution of the 19,510 individual tax returns filed in 33881 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
35.9%
$25K–$50K
30.1%
$50K–$75K
15.2%
$75K–$100K
7.5%
$100K–$200K
8.6%
$200K+
2.6%
The $200,000+ bracket accounts for 22% of 33881's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($36,671) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 33881's IRS income metrics, 2020–2022.

Median income (2021→2022)
$36,671
▲ 8.6%
Filers earning $200K+
2.6%
▲ 0.4 pt
Total filers
19,510
▲ 3.8%
GET /zipc/v2/zipcodes/33881/soi?year=… $31K 2020 $34K 2021 $37K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 33881 ZCTA.

2000
28,225
 
2010
29,345
▲ +4.0%
2020
38,369
▲ +30.8%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number119660
City AliasesFlorence Villa, Winter Haven

06Frequently Asked Questions

What county is ZIP code 33881 in?

ZIP code 33881 is in Polk County, Florida (county FIPS code 12105).

What city is ZIP code 33881?

The primary USPS city for 33881 is Winter Haven, FL.

What metro area (MSA) is 33881 in?

33881 is part of the Lakeland-Winter Haven, FL Metro Area (MSA code 29460).

What is the population of ZIP code 33881?

The 2020 Census population of 33881 was 38,369 residents.

What is the median income in ZIP code 33881?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 33881 is about $36,671, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.