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US ZIP Code Profile

ZIP Code 48237
Oak Park, Michigan

ZIP code 48237 is in Oak Park, located in Oakland County, Michigan, within the Detroit-Warren-Dearborn metro area. Its 2020 Census population was 29,560. The estimated median adjusted gross income per tax return is $40,535, and about 2% of filers report $200,000 or more.

2020 Population
29,560
Census ZCTA
County
Oakland
FIPS 26125
Median income (est.)
$40,535
IRS SOI 2022
Land Area
5.163 mi²
+ 0 mi² water

01Location & Geography

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

Primary CityOak Park, MI
CountyOakland County (FIPS 26125)
StateMichigan (FIPS 26)
Metro Area (MSA)Detroit-Warren-Dearborn, MI Metro Area (19820)
Census Region / DivisionMidwest Region · East North Central Division
Coordinates42.46497, -83.182365
Land / Water Area5.163 mi² land · 0 mi² water

02Income & Economics

Distribution of the 14,660 individual tax returns filed in 48237 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
33.8%
$25K–$50K
26.1%
$50K–$75K
16.9%
$75K–$100K
10.2%
$100K–$200K
11.2%
$200K+
1.9%
The $200,000+ bracket accounts for 17% of 48237's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($40,535) 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 48237's IRS income metrics, 2020–2022.

Median income (2021→2022)
$40,535
▲ 2.4%
Filers earning $200K+
1.9%
▲ 0.3 pt
Total filers
14,660
▲ 0.2%
GET /zipc/v2/zipcodes/48237/soi?year=… $37K 2020 $40K 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 48237 ZCTA.

2000
32,493
 
2010
29,319
▼ -9.8%
2020
29,560
▲ +0.8%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 48237. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 48237

Oak Park and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 48237 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 TypeBranch
Carrier Route SortD
USPS Finance Number252490
City AliasesDetroit, Oak Park

07Frequently Asked Questions

What county is ZIP code 48237 in?

ZIP code 48237 is in Oakland County, Michigan (county FIPS code 26125).

What city is ZIP code 48237?

The primary USPS city for 48237 is Oak Park, MI.

What metro area (MSA) is 48237 in?

48237 is part of the Detroit-Warren-Dearborn, MI Metro Area (MSA code 19820).

What is the population of ZIP code 48237?

The 2020 Census population of 48237 was 29,560 residents.

What is the median income in ZIP code 48237?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 48237 is about $40,535, 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.