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US ZIP Code Profile

ZIP Code 33812
Lakeland, Florida

ZIP code 33812 is in Lakeland, located in Polk County, Florida, within the Lakeland-Winter Haven metro area. Its 2020 Census population was 14,907. The estimated median adjusted gross income per tax return is $56,713, and about 8% of filers report $200,000 or more.

2020 Population
14,907
Census ZCTA
County
Polk
FIPS 12105
Median income (est.)
$56,713
IRS SOI 2022
Land Area
9.781 mi²
+ 0.636 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
Coordinates27.971441, -81.89448
Land / Water Area9.781 mi² land · 0.636 mi² water

02Income & Economics

Distribution of the 7,240 individual tax returns filed in 33812 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
23.1%
$25K–$50K
22.9%
$50K–$75K
14.9%
$75K–$100K
10.6%
$100K–$200K
20.6%
$200K+
7.9%
The $200,000+ bracket accounts for 35% of 33812's total adjusted gross income, from 8% of returns — a concentration that drives the gap between the median ($56,713) 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 33812's IRS income metrics, 2020–2022.

Median income (2021→2022)
$56,713
▲ 8.3%
Filers earning $200K+
7.9%
▲ 1.0 pt
Total filers
7,240
▲ 2.0%
GET /zipc/v2/zipcodes/33812/soi?year=… $50K 2020 $52K 2021 $57K 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 33812 ZCTA.

2010
13,166
 
2020
14,907
▲ +13.2%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 33812. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 33812

Lakeland and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 33812 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS 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

07Frequently Asked Questions

What county is ZIP code 33812 in?

ZIP code 33812 is in Polk County, Florida (county FIPS code 12105).

What city is ZIP code 33812?

The primary USPS city for 33812 is Lakeland, FL.

What metro area (MSA) is 33812 in?

33812 is part of the Lakeland-Winter Haven, FL Metro Area (MSA code 29460).

What is the population of ZIP code 33812?

The 2020 Census population of 33812 was 14,907 residents.

What is the median income in ZIP code 33812?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 33812 is about $56,713, with around 8% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.