🇺🇸 United States ZIP Code

STANDARD

62521

Decatur

ZIP Code 62521 is a standard zip code serving Decatur, Decatur, Illinois (IL), in Macon County, United States. It has an estimated population of 35,851 with a median household income of $48,288. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 39.839500
Longitude: -88.946500

Geographic Details

Land Area: 66.92 mi²
Water Area: 3.96 mi²
Population Density: 536.0 people per mi² (70th percentile)
Bounding Box: 39.912003°N, 39.747393°S, -88.801679°E, -89.105073°W

With 35,851 residents spread across 66.92 square miles, this area has a population density of 536.0 people per square mile.

Demographics

35,851

Population

90th percentile

$48,288

Median Income

50th percentile

$94,100

Median Home Value

30th percentile

66.92 mi²

Land Area

The median household income in 62521 is $48,288, and the median home value is $94,100.

Housing

16,791

Total Units

15,229

Occupied Units

90.7%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Decatur, IL.

62522

Decatur

62523

Decatur

62524

Decatur

62525

Decatur

62526

Decatur

Similar ZIP Codes in Illinois

ZIP codes with similar median household income in Illinois.

62863

Mount Carmel

$47,261

62561

Riverton

$54,653

61047

Leaf River

$52,222

61486

Viola

$46,250

60518

Earlville

$51,674

61764

Pontiac

$50,460

61252

Fulton

$53,586

62219

Beckemeyer

$49,792

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.