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River Forest, IL vs St. Charles, IL

134
River Forest
Illinois
VS
+11.4%
120
St. Charles
Illinois

St. Charles is moderately more affordable than River Forest, with a 11.4% lower cost of living index. River Forest scores 134 compared to 120 for St. Charles, where the US average is 100. This difference means residents of River Forest can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in River Forest is $1,411/month compared to $1,788/month in St. Charles — a 21% difference. Interestingly, home values tell a different story: while River Forest has cheaper rent, St. Charles actually has lower median home values ($369,700 vs $676,900).

Median household income in River Forest is $148,711 compared to $115,350 in St. Charles (+28.9%). While River Forest is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of River Forest spend roughly 11.4% of their income on rent, less than the 18.6% in St. Charles.

Climate-wise, both cities share similar average temperatures (52.1°F vs 49.7°F). River Forest receives more rainfall at 34.4" per year compared to 33.2" in St. Charles.

Income & Cost

Cost of Living Index
River Forest
134
St. Charles
120
10% cheaper
Median Household Income
River Forest
$148,711
22% higher
St. Charles
$115,350

Housing

Median Rent
River Forest
$1,411
21% cheaper
St. Charles
$1,788
Median Home Value
River Forest
$676,900
St. Charles
$369,700
45% cheaper
Population
River Forest
11,489
St. Charles
32,733

Salary Equivalency Calculator

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Everyday Prices

BLS Average Prices by metro area

Gasoline (regular)
River Forest $3.20
St. Charles $3.20
US $3.07
🥚
Eggs (grade A, large)
River Forest $2.61
St. Charles $2.61
US $2.50
🥛
Milk (whole)
River Forest $4.20
St. Charles $4.20
US $4.03
🍞
Bread (white)
River Forest $1.93
St. Charles $1.93
US $1.85
🍗
Chicken breast
River Forest $4.32
St. Charles $4.32
US $4.14
Electricity
River Forest $0.15
St. Charles $0.15
US $0.19

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
River Forest 52.1°F
St. Charles 49.7°F
Summer High
River Forest 85°F
St. Charles 84°F
Winter Low
River Forest 19°F
St. Charles 16°F
Rainfall
River Forest 34.4"
St. Charles 33.2"
Rainy Days
River Forest 121d
St. Charles 121d