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US ZIP Code Profile

ZIP Code 33837
Davenport, Florida

ZIP code 33837 is in Davenport, located in Polk County, Florida, within the Lakeland-Winter Haven metro area. Its 2020 Census population was 36,302. The estimated median adjusted gross income per tax return is $43,063, and about 3% of filers report $200,000 or more.

2020 Population
36,302
Census ZCTA
County
Polk
FIPS 12105
Median income (est.)
$43,063
IRS SOI 2022
Land Area
51.368 mi²
+ 2.93 mi² water

01Location & Geography

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

Primary CityDavenport, 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
Coordinates28.194773, -81.58751
Land / Water Area51.368 mi² land · 2.93 mi² water

02Income & Economics

Distribution of the 25,390 individual tax returns filed in 33837 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
29.0%
$25K–$50K
29.0%
$50K–$75K
16.8%
$75K–$100K
10.2%
$100K–$200K
12.3%
$200K+
2.7%
The $200,000+ bracket accounts for 16% of 33837's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($43,063) 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 33837's IRS income metrics, 2020–2022.

Median income (2021→2022)
$43,063
▲ 4.9%
Filers earning $200K+
2.7%
▲ 0.3 pt
Total filers
25,390
▲ 12.1%
GET /zipc/v2/zipcodes/33837/soi?year=… $38K 2020 $41K 2021 $43K 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 33837 ZCTA.

2000
21,315
 
2010
20,234
▼ -5.1%
2020
36,302
▲ +79.4%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number112070
City AliasesDavenport

06Frequently Asked Questions

What county is ZIP code 33837 in?

ZIP code 33837 is in Polk County, Florida (county FIPS code 12105).

What city is ZIP code 33837?

The primary USPS city for 33837 is Davenport, FL.

What metro area (MSA) is 33837 in?

33837 is part of the Lakeland-Winter Haven, FL Metro Area (MSA code 29460).

What is the population of ZIP code 33837?

The 2020 Census population of 33837 was 36,302 residents.

What is the median income in ZIP code 33837?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 33837 is about $43,063, 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.