🇺🇸 United States ZIP Code

STANDARD

61821

Champaign

ZIP Code 61821 is a standard zip code serving Champaign, Champaign, Illinois (IL), in Champaign County, United States. It has an estimated population of 30,174 with a median household income of $52,152. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 40.107300
Longitude: -88.278800

Geographic Details

Land Area: 7.55 mi²
Water Area: 0.02 mi²
Population Density: 3999.0 people per mi² (90th percentile)
Bounding Box: 40.149164°N, 40.076137°S, -88.257405°E, -88.309423°W

With 30,174 residents spread across 7.55 square miles, this area has a population density of 3999.0 people per square mile.

Demographics

30,174

Population

90th percentile

$52,152

Median Income

60th percentile

$138,100

Median Home Value

55th percentile

7.55 mi²

Land Area

The median household income in 61821 is $52,152, and the median home value is $138,100.

Housing

13,784

Total Units

12,938

Occupied Units

93.9%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Champaign, IL.

61820

Champaign

61822

Champaign

61824

Champaign

61825

Champaign

61826

Champaign

Similar ZIP Codes in Illinois

ZIP codes with similar median household income in Illinois.

61523

Chillicothe

$57,399

61420

Blandinsville

$46,583

61559

Princeville

$56,652

61001

Apple River

$51,250

60550

Shabbona

$50,662

60018

Des Plaines

$54,688

62650

Jacksonville

$46,486

62814

Bluford

$53,226

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.