Zip Code 61604
Peoria, Illinois — Peoria County
📍 ZIP code 61604 is in Peoria, Peoria County, Illinois.
ZIP code 61604 is located in Peoria, Peoria County, Illinois. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 27,502. The area code for ZIP code 61604 is 618.
Quick Answer
Zip code 61604 is in Peoria, Illinois (Peoria County). It has a population of 27,502, median household income of $50,628, and median home value of $100,000.
Population
27,502
Income
$50,628
Home Value
$100,000
Climate
86°F / 18°F
About Zip Code 61604
Zip code 61604 is located in Peoria, Illinois, within Peoria County. Home to approximately 27,502 residents, this area sits at an elevation of 472 ft and falls within the Central (CST/CDT) timezone. The local area code is 618.
The median household income is $50,628 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $100,000, and the cost of living index is 60 (40% below the national average of 100).
Summers average a high of 86°F while winters drop to 18°F. The area receives about 38 in of rain and 26 in of snow annually. The zip code covers 15.8 square miles of land area.
Key Statistics
27,502
$50,628
$100,000
Central (CST/CDT)
618
472 ft
15.8 sq mi
40.4
13,341
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Compare With Nearby Zip Codes
| Metric | 61604 | 61606 | 61605 | 61615 | 61602 | 61603 |
|---|---|---|---|---|---|---|
| City | Peoria, IL | Peoria, IL | Peoria, IL | Peoria, IL | Peoria, IL | Peoria, IL |
| Population | 27,502 | 6,979 | 13,538 | 23,266 | 977 | 15,430 |
| Median Income | $50,628 | $41,023 | $24,499 | $82,157 | $17,273 | $40,405 |
| Home Value | $100,000 | $119,800 | $44,200 | $206,800 | $222,700 | $73,100 |
| Cost of Living | 60 | 60 | 60 | 87 | 61 | 60 |
| Median Age | 40.4 | 22.2 | 35.5 | 35.7 | 44.1 | 36.4 |
Cost of Living
100 = National Average. Peoria's cost of living is 40% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.0x
Demographics
Zip code 61604 has a population of 27,502 people with a median age of 40.4. There are 13,341 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Peoria (61604) population trend from 2010 to 2024
↑ 98.2%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
86°F
18°F
38 in
26 in
Peoria experiences warm summers with average highs around 86°F. Winters are cold with lows averaging 18°F. The area receives about 26 in of snow per year.
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Housing & Economy
Median Home Value
$100,000
Median Household Income
$50,628
With 13,341 housing units across 15.8 square miles, 61604 has a housing density of 844 units per square mile. The home price-to-income ratio is 2.0x.
Location & Geography
Latitude
40.7057°
Longitude
-89.6536°
Land Area
15.8 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 61604 (Peoria, IL) with distances:
All Zip Codes in Peoria, IL
Other zip codes serving Peoria:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 61604's $50,628. A way to compare Peoria to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 61604 (Peoria, IL). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Peoria, Illinois?
Peoria, Illinois uses zip code 61604 along with 6 other zip codes.
What county is zip code 61604 in?
Zip code 61604 is located in Peoria County, Illinois.
What is the population of zip code 61604?
The population of zip code 61604 is 27,502 with a median age of 40.4.
Is 61604 in Peoria, Illinois?
Yes, zip code 61604 is in Peoria, Peoria County, Illinois. The area code is 618.
Frequently Asked Questions
What city is zip code 61604 in?
Zip code 61604 is in Peoria, Illinois. It is part of Peoria County and uses the Central (CST/CDT) timezone.
What is zip code 61604?
Zip code 61604 is a U.S. postal code in Peoria, Illinois (Peoria County). It has a population of 27,502 and covers 15.8 square miles.
What is the population of zip code 61604?
The population of zip code 61604 (Peoria, IL) is 27,502 with a median age of 40.4. There are approximately 13,341 housing units in this area.
What is the median income in zip code 61604?
The median household income in zip code 61604 (Peoria, IL) is $50,628 per year. The cost of living index is 60 (100 = national average).
What is the average home price in zip code 61604?
The median home value in zip code 61604 (Peoria, IL) is $100,000. The cost of living index is 60 compared to the national average of 100.
What county is zip code 61604 in?
Zip code 61604 is located in Peoria County, Illinois. The primary city is Peoria.
What is the area code for zip code 61604?
Zip code 61604 in Peoria, IL uses area code 618. It is located in the Central (CST/CDT) timezone.
Is zip code 61604 a good place to live?
Zip code 61604 (Peoria, IL) has a cost of living index of 60 (100 = national average), a median household income of $50,628, and median home values of $100,000. The median age is 40.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 61604?
The cost of living index for zip code 61604 (Peoria, IL) is 60, where 100 represents the national average. This area is below the national average. Median home value: $100,000.
What schools serve zip code 61604?
Zip code 61604 in Peoria, Illinois is served by the local school district of Peoria County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.