Zip Code 60431
Joliet, Illinois — Will County
📍 ZIP code 60431 is in Joliet, Will County, Illinois.
ZIP code 60431 is located in Joliet, Will County, Illinois. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 26,789. The area code for ZIP code 60431 is 815.
Quick Answer
Zip code 60431 is in Joliet, Illinois (Will County). It has a population of 26,789, median household income of $114,098, and median home value of $275,100.
Population
26,789
Income
$114,098
Home Value
$275,100
Climate
84°F / 17°F
About Zip Code 60431
Zip code 60431 is located in Joliet, Illinois, within Will County. Home to approximately 26,789 residents, this area sits at an elevation of 572 ft and falls within the Central (CST/CDT) timezone. The local area code is 815.
The median household income is $114,098 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $275,100, and the cost of living index is 114 (14% above the national average of 100).
Summers average a high of 84°F while winters drop to 17°F. The area receives about 38 in of rain and 17 in of snow annually. The zip code covers 13.6 square miles of land area and 0.1 square miles of water.
Key Statistics
26,789
$114,098
$275,100
Central (CST/CDT)
815
572 ft
13.6 sq mi
35.8
9,368
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Compare With Nearby Zip Codes
| Metric | 60431 | 60436 | 60435 | 60410 | 60421 | 60433 |
|---|---|---|---|---|---|---|
| City | Joliet, IL | Joliet, IL | Joliet, IL | Channahon, IL | Elwood, IL | Joliet, IL |
| Population | 26,789 | 19,446 | 48,521 | 14,027 | 3,786 | 15,293 |
| Median Income | $114,098 | $63,570 | $74,967 | $120,278 | $101,818 | $60,987 |
| Home Value | $275,100 | $170,800 | $217,200 | $293,500 | $251,400 | $167,800 |
| Cost of Living | 114 | 65 | 82 | 121 | 104 | 66 |
| Median Age | 35.8 | 34.3 | 37.1 | 38.1 | 45 | 39.6 |
Cost of Living
100 = National Average. Joliet's cost of living is 14% above the national average.
vs. State Avg
Above
Affordability
Moderate
Income-to-Home
2.4x
Demographics
Zip code 60431 has a population of 26,789 people with a median age of 35.8. There are 9,368 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Joliet (60431) population trend from 2010 to 2024
↑ 95.6%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
84°F
17°F
38 in
17 in
Joliet experiences warm summers with average highs around 84°F. Winters are cold with lows averaging 17°F. The area receives about 17 in of snow per year.
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Housing & Economy
Median Home Value
$275,100
Median Household Income
$114,098
With 9,368 housing units across 13.6 square miles, 60431 has a housing density of 689 units per square mile. The home price-to-income ratio is 2.4x.
Location & Geography
Latitude
41.5097°
Longitude
-88.1800°
Land Area
13.6 sq mi
Water Area
0.1 sq mi
Nearby Zip Codes
Zip codes closest to 60431 (Joliet, IL) with distances:
All Zip Codes in Joliet, IL
Other zip codes serving Joliet:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 60431's $114,098. A way to compare Joliet 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 60431 (Joliet, 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 Joliet, Illinois?
Joliet, Illinois uses zip code 60431 along with 4 other zip codes.
What county is zip code 60431 in?
Zip code 60431 is located in Will County, Illinois.
What is the population of zip code 60431?
The population of zip code 60431 is 26,789 with a median age of 35.8.
Is 60431 in Joliet, Illinois?
Yes, zip code 60431 is in Joliet, Will County, Illinois. The area code is 815.
Frequently Asked Questions
What city is zip code 60431 in?
Zip code 60431 is in Joliet, Illinois. It is part of Will County and uses the Central (CST/CDT) timezone.
What is zip code 60431?
Zip code 60431 is a U.S. postal code in Joliet, Illinois (Will County). It has a population of 26,789 and covers 13.6 square miles.
What is the population of zip code 60431?
The population of zip code 60431 (Joliet, IL) is 26,789 with a median age of 35.8. There are approximately 9,368 housing units in this area.
What is the median income in zip code 60431?
The median household income in zip code 60431 (Joliet, IL) is $114,098 per year. The cost of living index is 114 (100 = national average).
What is the average home price in zip code 60431?
The median home value in zip code 60431 (Joliet, IL) is $275,100. The cost of living index is 114 compared to the national average of 100.
What county is zip code 60431 in?
Zip code 60431 is located in Will County, Illinois. The primary city is Joliet.
What is the area code for zip code 60431?
Zip code 60431 in Joliet, IL uses area code 815. It is located in the Central (CST/CDT) timezone.
Is zip code 60431 a good place to live?
Zip code 60431 (Joliet, IL) has a cost of living index of 114 (100 = national average), a median household income of $114,098, and median home values of $275,100. The median age is 35.8. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 60431?
The cost of living index for zip code 60431 (Joliet, IL) is 114, where 100 represents the national average. This area is above the national average. Median home value: $275,100.
What schools serve zip code 60431?
Zip code 60431 in Joliet, Illinois is served by the local school district of Will 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.