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US ZIP Code Profile

ZIP Code 33860
Mulberry, Florida

ZIP code 33860 is in Mulberry, located in Polk County, Florida, within the Lakeland-Winter Haven metro area. Its 2020 Census population was 24,932. The estimated median adjusted gross income per tax return is $41,022, and about 2% of filers report $200,000 or more.

2020 Population
24,932
Census ZCTA
County
Polk
FIPS 12105
Median income (est.)
$41,022
IRS SOI 2022
Land Area
116.834 mi²
+ 23.797 mi² water

01Location & Geography

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

Primary CityMulberry, 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
Coordinates27.762892, -82.02534
Land / Water Area116.834 mi² land · 23.797 mi² water

02Income & Economics

Distribution of the 11,260 individual tax returns filed in 33860 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
31.6%
$25K–$50K
28.7%
$50K–$75K
16.5%
$75K–$100K
9.5%
$100K–$200K
11.6%
$200K+
2.0%
The $200,000+ bracket accounts for 16% of 33860's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($41,022) 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 33860's IRS income metrics, 2020–2022.

Median income (2021→2022)
$41,022
▲ 6.4%
Filers earning $200K+
2.0%
▲ 0.4 pt
Total filers
11,260
▲ 3.4%
GET /zipc/v2/zipcodes/33860/soi?year=… $37K 2020 $39K 2021 $41K 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 33860 ZCTA.

2000
17,015
 
2010
22,886
▲ +34.5%
2020
24,932
▲ +8.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number116180
City AliasesMulberry

06Frequently Asked Questions

What county is ZIP code 33860 in?

ZIP code 33860 is in Polk County, Florida (county FIPS code 12105).

What city is ZIP code 33860?

The primary USPS city for 33860 is Mulberry, FL.

What metro area (MSA) is 33860 in?

33860 is part of the Lakeland-Winter Haven, FL Metro Area (MSA code 29460).

What is the population of ZIP code 33860?

The 2020 Census population of 33860 was 24,932 residents.

What is the median income in ZIP code 33860?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 33860 is about $41,022, with around 2% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.