🇺🇸 United States ZIP Code

STANDARD

61605

Peoria

ZIP Code 61605 is a standard zip code serving Peoria, Peoria, Illinois (IL), in Peoria County, United States. It has an estimated population of 16,303 with a median household income of $19,442. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 40.677500
Longitude: -89.626300

Geographic Details

Land Area: 4.16 mi²
Population Density: 3921.0 people per mi² (90th percentile)
Bounding Box: 40.696729°N, 40.655367°S, -89.595550°E, -89.675311°W

With 16,303 residents spread across 4.16 square miles, this area has a population density of 3921.0 people per square mile.

Demographics

16,303

Population

75th percentile

$19,442

Median Income

$43,900

Median Home Value

4.16 mi²

Land Area

The median household income in 61605 is $19,442, and the median home value is $43,900.

Housing

7,105

Total Units

6,124

Occupied Units

86.2%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Peoria, IL.

61601

Peoria

61602

Peoria

61603

Peoria

61604

Peoria

61606

Peoria

61607

Peoria

61612

Peoria

61613

Peoria

61614

Peoria

61615

Peoria

Similar ZIP Codes in Illinois

ZIP codes with similar median household income in Illinois.

62205

East Saint Louis

$22,054

61820

Champaign

$22,470

62204

East Saint Louis

$16,751

62060

Madison

$20,692

60624

Chicago

$22,786

62901

Carbondale

$20,995

62914

Cairo

$16,747

62982

Rosiclare

$20,486

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.