🇺🇸 United States ZIP Code

STANDARD

60603

Chicago

ZIP Code 60603 is a standard zip code serving Chicago, Chicago, Illinois (IL), in Cook County, United States. It has an estimated population of 493 with a median household income of $107,419. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Illinois (IL)
County: Cook
City: Chicago
Timezone: America/Chicago

Coordinates

Latitude: 41.879800
Longitude: -87.628500

Geographic Details

Land Area: 0.14 mi²
Population Density: 3402.0 people per mi² (90th percentile)
Bounding Box: 41.882119°N, 41.878278°S, -87.617200°E, -87.633824°W

With 493 residents spread across 0.14 square miles, this area has a population density of 3402.0 people per square mile.

Demographics

493

Population

15th percentile

$107,419

Median Income

95th percentile

$643,800

Median Home Value

95th percentile

0.14 mi²

Land Area

The median household income in 60603 is $107,419, and the median home value is $643,800. This places the area in the top 25% nationally for household income.

Housing

749

Total Units

187

Occupied Units

25.0%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Chicago, IL.

60601

Chicago

60602

Chicago

60604

Chicago

60605

Chicago

60606

Chicago

60607

Chicago

60608

Chicago

60609

Chicago

60610

Chicago

60611

Chicago

Similar ZIP Codes in Illinois

ZIP codes with similar median household income in Illinois.

60136

Gilberts

$105,379

60585

Plainfield

$116,713

60422

Flossmoor

$98,140

60012

Crystal Lake

$109,962

61705

Bloomington

$95,141

60124

Elgin

$102,059

60044

Lake Bluff

$92,861

60010

Barrington

$120,632

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.