🇺🇸 United States ZIP Code

STANDARD

62881

Salem

ZIP Code 62881 is a standard zip code serving Salem, Salem, Illinois (IL), in Marion County, United States. It has an estimated population of 11,385 with a median household income of $42,810. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 38.626400
Longitude: -88.948100

Geographic Details

Land Area: 100.40 mi²
Water Area: 0.49 mi²
Population Density: 113.0 people per mi² (55th percentile)
Bounding Box: 38.735437°N, 38.538216°S, -88.808580°E, -89.031139°W

With 11,385 residents spread across 100.40 square miles, this area has a population density of 113.0 people per square mile.

Demographics

11,385

Population

70th percentile

$42,810

Median Income

35th percentile

$77,700

Median Home Value

15th percentile

100.40 mi²

Land Area

The median household income in 62881 is $42,810, and the median home value is $77,700.

Housing

5,083

Total Units

4,642

Occupied Units

91.3%

Occupancy Rate

Similar ZIP Codes in Illinois

ZIP codes with similar median household income in Illinois.

62088

Staunton

$49,073

60484

University Park

$48,571

62919

Cave In Rock

$41,458

62838

Farina

$37,569

62844

Grayville

$38,045

60959

Piper City

$43,352

62926

Dongola

$43,309

62439

Lawrenceville

$40,199

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.