Home / Compare / Mount Prospect vs South Elgin

Mount Prospect, IL vs South Elgin, IL

111
Mount Prospect
Illinois
VS
+1.5%
109
South Elgin
Illinois

Mount Prospect, IL and South Elgin, IL have a very similar cost of living, with only a 1.5% difference in their overall index. Mount Prospect scores 111 while South Elgin scores 109 on the cost of living index, where 100 represents the national average. The day-to-day expenses for residents in both cities are comparable, though differences emerge when looking at specific categories.

On the housing front, median rent in Mount Prospect is $1,454/month compared to $1,619/month in South Elgin — a 10% difference. Interestingly, home values tell a different story: while Mount Prospect has cheaper rent, South Elgin actually has lower median home values ($296,100 vs $377,000).

Median household income in Mount Prospect is $103,911 compared to $123,744 in South Elgin (-16%). South Elgin offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Mount Prospect spend roughly 16.8% of their income on rent, more than the 15.7% in South Elgin.

Climate-wise, both cities share similar average temperatures (50.8°F vs 49.7°F). South Elgin receives more rainfall at 33.2" per year compared to 32.3" in Mount Prospect.

Income & Cost

Cost of Living Index
Mount Prospect
111
South Elgin
109
1% cheaper
Median Household Income
Mount Prospect
$103,911
South Elgin
$123,744
16% higher

Housing

Median Rent
Mount Prospect
$1,454
10% cheaper
South Elgin
$1,619
Median Home Value
Mount Prospect
$377,000
South Elgin
$296,100
21% cheaper
Population
Mount Prospect
55,648
South Elgin
23,984

Salary Equivalency Calculator

What does your salary in one city buy you in the other?

$
Formula:

Everyday Prices

BLS Average Prices by metro area

Gasoline (regular)
Mount Prospect $3.20
South Elgin $3.20
US $3.07
🥚
Eggs (grade A, large)
Mount Prospect $2.61
South Elgin $2.61
US $2.50
🥛
Milk (whole)
Mount Prospect $4.20
South Elgin $4.20
US $4.03
🍞
Bread (white)
Mount Prospect $1.93
South Elgin $1.93
US $1.85
🍗
Chicken breast
Mount Prospect $4.32
South Elgin $4.32
US $4.14
Electricity
Mount Prospect $0.15
South Elgin $0.15
US $0.19

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
Mount Prospect 50.8°F
South Elgin 49.7°F
Summer High
Mount Prospect 84°F
South Elgin 84°F
Winter Low
Mount Prospect 18°F
South Elgin 16°F
Rainfall
Mount Prospect 32.3"
South Elgin 33.2"
Rainy Days
Mount Prospect 112d
South Elgin 121d