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US ZIP Code Profile

ZIP Code 53221
Milwaukee, Wisconsin

ZIP code 53221 is in Milwaukee, located in Milwaukee County, Wisconsin, within the Milwaukee-Waukesha-West Allis metro area. Its 2020 Census population was 39,560. The estimated median adjusted gross income per tax return is $43,089, and about 2% of filers report $200,000 or more.

2020 Population
39,560
Census ZCTA
County
Milwaukee
FIPS 55079
Median income (est.)
$43,089
IRS SOI 2022
Land Area
9.133 mi²
+ 0.014 mi² water

01Location & Geography

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

Primary CityMilwaukee, WI
CountyMilwaukee County (FIPS 55079)
StateWisconsin (FIPS 55)
Metro Area (MSA)Milwaukee-Waukesha-West Allis, WI Metro Area (33340)
Census Region / DivisionMidwest Region · East North Central Division
Coordinates42.953915, -87.944496
Land / Water Area9.133 mi² land · 0.014 mi² water

02Income & Economics

Distribution of the 19,000 individual tax returns filed in 53221 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
29.5%
$25K–$50K
28.4%
$50K–$75K
18.1%
$75K–$100K
10.2%
$100K–$200K
12.2%
$200K+
1.7%
The $200,000+ bracket accounts for 10% of 53221's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($43,089) 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 53221's IRS income metrics, 2020–2022.

Median income (2021→2022)
$43,089
▲ 4.7%
Filers earning $200K+
1.7%
▲ 0.3 pt
Total filers
19,000
▲ 1.2%
GET /zipc/v2/zipcodes/53221/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 53221 ZCTA.

2000
35,422
 
2010
37,701
▲ +6.4%
2020
39,560
▲ +4.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 53221. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 53221

Milwaukee and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 53221 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 Number565480
City AliasesGreenfield, Milwaukee

07Frequently Asked Questions

What county is ZIP code 53221 in?

ZIP code 53221 is in Milwaukee County, Wisconsin (county FIPS code 55079).

What city is ZIP code 53221?

The primary USPS city for 53221 is Milwaukee, WI.

What metro area (MSA) is 53221 in?

53221 is part of the Milwaukee-Waukesha-West Allis, WI Metro Area (MSA code 33340).

What is the population of ZIP code 53221?

The 2020 Census population of 53221 was 39,560 residents.

What is the median income in ZIP code 53221?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 53221 is about $43,089, 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.