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Potomac, IL vs Prophetstown, IL

63
Potomac
Illinois
VS
+0.9%
62
Prophetstown
Illinois

Potomac, IL and Prophetstown, IL have a very similar cost of living, with only a 0.9% difference in their overall index. Potomac scores 63 while Prophetstown scores 62 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 Potomac is $742/month compared to $704/month in Prophetstown — a 5% difference. Interestingly, home values tell a different story: while Prophetstown has cheaper rent, Potomac actually has lower median home values ($79,600 vs $116,300).

Median household income in Potomac is $52,404 compared to $66,797 in Prophetstown (-21.5%). Prophetstown offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Potomac spend roughly 17% of their income on rent, more than the 12.6% in Prophetstown.

Climate-wise, both cities share similar average temperatures (52.3°F vs 51.2°F). Potomac receives more rainfall at 40.4" per year compared to 38.3" in Prophetstown.

Income & Cost

Cost of Living Index
Potomac
63
Prophetstown
62
1% cheaper
Median Household Income
Potomac
$52,404
Prophetstown
$66,797
22% higher

Housing

Median Rent
Potomac
$742
Prophetstown
$704
5% cheaper
Median Home Value
Potomac
$79,600
32% cheaper
Prophetstown
$116,300
Population
Potomac
612
Prophetstown
1,828

Salary Equivalency Calculator

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Everyday Prices

BLS Average Prices by metro area

Gasoline (regular)
Potomac
Prophetstown $2.95
US $3.07
🥚
Eggs (grade A, large)
Potomac
Prophetstown $2.41
US $2.50
🥛
Milk (whole)
Potomac
Prophetstown $3.88
US $4.03
🍞
Bread (white)
Potomac
Prophetstown $1.78
US $1.85
🍗
Chicken breast
Potomac
Prophetstown $3.99
US $4.14
Electricity
Potomac
Prophetstown $0.18
US $0.19

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
Potomac 52.3°F
Prophetstown 51.2°F
Summer High
Potomac 88°F
Prophetstown 86°F
Winter Low
Potomac 16°F
Prophetstown 15°F
Rainfall
Potomac 40.4"
Prophetstown 38.3"
Rainy Days
Potomac 102d
Prophetstown 117d