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Fairfield, IL vs Somonauk, IL

58
Fairfield
Illinois
VS
-28.2%
81
Somonauk
Illinois

There is a significant gap in the cost of living between these two cities. Fairfield is 28.2% cheaper than Somonauk. With a cost index of 58 vs 81, the difference would have a meaningful impact on a household's monthly budget. Someone relocating from Fairfield to Somonauk should plan for substantially higher expenses across most categories.

On the housing front, median rent in Fairfield is $558/month compared to $883/month in Somonauk — a 37% difference. Home values follow the same pattern: Fairfield is more affordable at $91,800 median vs $221,500.

Median household income in Fairfield is $41,026 compared to $81,731 in Somonauk (-49.8%). While Somonauk is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Fairfield spend roughly 16.3% of their income on rent, more than the 13% in Somonauk.

Climate-wise, Fairfield is notably warmer with an average of 55.7°F compared to 49.4°F in Somonauk. Fairfield receives more rainfall at 41.7" per year compared to 33.8" in Somonauk.

Income & Cost

Cost of Living Index
Fairfield
58
28% cheaper
Somonauk
81
Median Household Income
Fairfield
$41,026
Somonauk
$81,731
50% higher

Housing

Median Rent
Fairfield
$558
37% cheaper
Somonauk
$883
Median Home Value
Fairfield
$91,800
59% cheaper
Somonauk
$221,500
Population
Fairfield
4,658
Somonauk
1,592

Salary Equivalency Calculator

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Everyday Prices

BLS Average Prices by metro area

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

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
Fairfield 55.7°F
Somonauk 49.4°F
Summer High
Fairfield 88°F
Somonauk 84°F
Winter Low
Fairfield 23°F
Somonauk 15°F
Rainfall
Fairfield 41.7"
Somonauk 33.8"
Rainy Days
Fairfield 116d
Somonauk 126d