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US ZIP Code Profile

ZIP Code 60304
Oak Park, Illinois

ZIP code 60304 is in Oak Park, located in Cook County, Illinois, within the Chicago-Naperville-Elgin metro area. Its 2020 Census population was 17,842. The estimated median adjusted gross income per tax return is $85,000, and about 20% of filers report $200,000 or more.

2020 Population
17,842
Census ZCTA
County
Cook
FIPS 17031
Median income (est.)
$85,000
IRS SOI 2022
Land Area
1.532 mi²
+ 0 mi² water

01Location & Geography

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

Primary CityOak Park, IL
CountyCook County (FIPS 17031)
StateIllinois (FIPS 17)
Metro Area (MSA)Chicago-Naperville-Elgin, IL-IN-WI Metro Area (16980)
Census Region / DivisionMidwest Region · East North Central Division
Coordinates41.87239, -87.78948
Land / Water Area1.532 mi² land · 0 mi² water

02Income & Economics

Distribution of the 7,940 individual tax returns filed in 60304 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
18.8%
$25K–$50K
15.4%
$50K–$75K
12.3%
$75K–$100K
8.8%
$100K–$200K
24.7%
$200K+
20.0%
The $200,000+ bracket accounts for 56% of 60304's total adjusted gross income, from 20% of returns — a concentration that drives the gap between the median ($85,000) 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 60304's IRS income metrics, 2020–2022.

Median income (2021→2022)
$85,000
▲ 7.1%
Filers earning $200K+
20.0%
▲ 1.6 pt
Total filers
7,940
▲ 0.5%
GET /zipc/v2/zipcodes/60304/soi?year=… $73K 2020 $79K 2021 $85K 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 60304 ZCTA.

2000
17,839
 
2010
17,231
▼ -3.4%
2020
17,842
▲ +3.5%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 60304. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 60304

Oak Park and its immediate neighbors, sorted by distance.

3 mi
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Distance from 60304 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 Number165790
City AliasesOak Park

07Frequently Asked Questions

What county is ZIP code 60304 in?

ZIP code 60304 is in Cook County, Illinois (county FIPS code 17031).

What city is ZIP code 60304?

The primary USPS city for 60304 is Oak Park, IL.

What metro area (MSA) is 60304 in?

60304 is part of the Chicago-Naperville-Elgin, IL-IN-WI Metro Area (MSA code 16980).

What is the population of ZIP code 60304?

The 2020 Census population of 60304 was 17,842 residents.

What is the median income in ZIP code 60304?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 60304 is about $85,000, with around 20% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.