🇺🇸 United States ZIP Code

STANDARD

60585

Plainfield

ZIP Code 60585 is a standard zip code serving Plainfield, Plainfield, Illinois (IL), in Will County, United States. It has an estimated population of 22,311 with a median household income of $116,713. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 41.655800
Longitude: -88.220300

Geographic Details

Land Area: 16.03 mi²
Water Area: 0.23 mi²
Population Density: 1392.0 people per mi² (80th percentile)
Bounding Box: 41.715517°N, 41.631687°S, -88.164363°E, -88.289303°W

With 22,311 residents spread across 16.03 square miles, this area has a population density of 1392.0 people per square mile.

Demographics

22,311

Population

80th percentile

$116,713

Median Income

95th percentile

$308,700

Median Home Value

85th percentile

16.03 mi²

Land Area

The median household income in 60585 is $116,713, and the median home value is $308,700. This places the area in the top 25% nationally for household income.

Housing

6,761

Total Units

6,478

Occupied Units

95.8%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Plainfield, IL.

60544

Plainfield

60586

Plainfield

Similar ZIP Codes in Illinois

ZIP codes with similar median household income in Illinois.

60502

Aurora

$105,319

60124

Elgin

$102,059

60091

Wilmette

$129,551

60192

Hoffman Estates

$115,285

60069

Lincolnshire

$104,196

60102

Algonquin

$99,655

60035

Highland Park

$111,549

61525

Dunlap

$103,344

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.