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Cost of Living in Oak Forest, IL

Population: 26,888 | Illinois

95
Cost of Living Index
US Average = 100

Oak Forest is 5% less expensive than the national average.

98
Housing
81
Home Values
102
Regional Price

Cost of Living in Oak Forest, IL: What You Need to Know

With a cost of living index of 95, Oak Forest, IL is slightly more affordable than average. Living here is 5% cheaper than the national average and 15% above the Illinois state average of 80. With a population of 26,888, Oak Forest is a mid-sized community that balances access to services with a more manageable cost of living compared to larger metros.

Housing costs are the biggest factor in Oak Forest's cost of living. The median monthly rent is $1,287 (2% below the US median of $1,319), and the median home value sits at $247,800 (19% below the national median of $304,900). At current prices, the median home costs roughly 2.8x the median household income — well within traditional affordability guidelines.

The median household income in Oak Forest is $87,941, which is 17% higher than the national median of $75,149. Residents spend roughly 18% of household income on rent. This is a comfortable ratio, well below the 30% threshold that financial experts recommend as a maximum.

Climate is another factor for anyone considering a move to Oak Forest. The area sees an average annual temperature of 52.1°F, with summers averaging 74°F and winters around 29°F. Annual rainfall totals 34.4 inches spread over roughly 121 days. Cold winters mean higher heating bills, an important cost-of-living consideration.

Everyday prices in the Chicago-Naperville-Elgin, IL-IN (Metropolitan Statistical Area) metro area tend to run above the national average. Out of 6 common grocery and utility items tracked by the Bureau of Labor Statistics, 5 are priced higher than the US average. These real-world prices — from groceries to electricity — add up and should be factored into any cost of living comparison.

Data sources: US Census Bureau (ACS 2023), Zillow Home Values, HUD Fair Market Rents, BEA Regional Price Parities, BLS Average Prices, and NOAA Climate Normals. Updated monthly.

Income

Median Household Income
$87,941
vs US Median ($75,149)
+17%

Housing

Median Rent
$1,287/mo
Median Home Value
$247,800
Median Monthly Housing Cost
$1,421/mo

Everyday Prices in Oak Forest

BLS Average Prices for the Chicago-Naperville-Elgin, IL-IN (Metropolitan Statistical Area) area

$3.20
Gasoline (regular)
per gallon
+4% vs US
🥚
$2.61
Eggs (grade A, large)
per dozen
+4% vs US
🥛
$4.20
Milk (whole)
per gallon
+4% vs US
🍞
$1.93
Bread (white)
per lb
+4% vs US
🍗
$4.32
Chicken breast
per lb
+4% vs US
$0.15
Electricity
per kWh
-23% vs US

Climate in Oak Forest

NOAA 30-year normals (1991-2020)

52.1°F
Avg Temperature
34.4"
Rainfall / Year
121d
Rainy Days / Year
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High °F 33 37 48 60 71 81 85 83 76 63 49 38
Avg °F 26 30 40 51 62 72 76 75 68 55 42 31
Low °F 19 23 32 41 52 62 68 66 59 47 35 25
Rain" 1.5 1.5 1.9 3.6 4.1 4.0 3.6 4.0 2.8 3.5 2.4 1.8

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