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US ZIP Code Profile

ZIP Code 33815
Lakeland, Florida

ZIP code 33815 is in Lakeland, located in Polk County, Florida, within the Lakeland-Winter Haven metro area. Its 2020 Census population was 15,681. The estimated median adjusted gross income per tax return is $28,028, and about 2% of filers report $200,000 or more.

2020 Population
15,681
Census ZCTA
County
Polk
FIPS 12105
Median income (est.)
$28,028
IRS SOI 2022
Land Area
7.415 mi²
+ 0.463 mi² water

01Location & Geography

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

Primary CityLakeland, 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
Coordinates28.041258, -81.99759
Land / Water Area7.415 mi² land · 0.463 mi² water

02Income & Economics

Distribution of the 6,130 individual tax returns filed in 33815 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
46.2%
$25K–$50K
31.6%
$50K–$75K
11.9%
$75K–$100K
4.6%
$100K–$200K
3.3%
$200K+
2.5%
The $200,000+ bracket accounts for 37% of 33815's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($28,028) 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 33815's IRS income metrics, 2020–2022.

Median income (2021→2022)
$28,028
▲ 13.6%
Filers earning $200K+
2.5%
▲ 1.3 pt
Total filers
6,130
▲ 3.5%
GET /zipc/v2/zipcodes/33815/soi?year=… $23K 2020 $25K 2021 $28K 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 33815 ZCTA.

2000
13,620
 
2010
14,267
▲ +4.8%
2020
15,681
▲ +9.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number114920
City AliasesLakeland

06Frequently Asked Questions

What county is ZIP code 33815 in?

ZIP code 33815 is in Polk County, Florida (county FIPS code 12105).

What city is ZIP code 33815?

The primary USPS city for 33815 is Lakeland, FL.

What metro area (MSA) is 33815 in?

33815 is part of the Lakeland-Winter Haven, FL Metro Area (MSA code 29460).

What is the population of ZIP code 33815?

The 2020 Census population of 33815 was 15,681 residents.

What is the median income in ZIP code 33815?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 33815 is about $28,028, 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.