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Posen, IL vs Prospect Heights, IL

95
Posen
Illinois
VS
-11%
107
Prospect Heights
Illinois

Posen is moderately more affordable than Prospect Heights, with a 11% lower cost of living index. Posen scores 95 compared to 107 for Prospect Heights, where the US average is 100. This difference means residents of Prospect Heights can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Posen is $1,478/month compared to $1,391/month in Prospect Heights — a 6% difference. Interestingly, home values tell a different story: while Prospect Heights has cheaper rent, Posen actually has lower median home values ($172,800 vs $347,500).

Median household income in Posen is $71,994 compared to $91,599 in Prospect Heights (-21.4%). While Prospect Heights is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Posen spend roughly 24.6% of their income on rent, more than the 18.2% in Prospect Heights.

Climate-wise, both cities share similar average temperatures (52.1°F vs 50.8°F). Posen receives more rainfall at 34.4" per year compared to 32.3" in Prospect Heights.

Income & Cost

Cost of Living Index
Posen
95
11% cheaper
Prospect Heights
107
Median Household Income
Posen
$71,994
Prospect Heights
$91,599
21% higher

Housing

Median Rent
Posen
$1,478
Prospect Heights
$1,391
6% cheaper
Median Home Value
Posen
$172,800
50% cheaper
Prospect Heights
$347,500
Population
Posen
5,331
Prospect Heights
15,681

Salary Equivalency Calculator

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Everyday Prices

BLS Average Prices by metro area

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

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
Posen 52.1°F
Prospect Heights 50.8°F
Summer High
Posen 85°F
Prospect Heights 84°F
Winter Low
Posen 19°F
Prospect Heights 18°F
Rainfall
Posen 34.4"
Prospect Heights 32.3"
Rainy Days
Posen 121d
Prospect Heights 112d