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Eureka, MT vs Fairfield, MT

77
Eureka
Montana
VS
+10.5%
70
Fairfield
Montana

Fairfield is moderately more affordable than Eureka, with a 10.5% lower cost of living index. Eureka scores 77 compared to 70 for Fairfield, where the US average is 100. This difference means residents of Eureka can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Eureka is $1,012/month compared to $683/month in Fairfield — a 48% difference. Interestingly, home values tell a different story: while Fairfield has cheaper rent, Eureka actually has lower median home values ($172,300 vs $203,000).

Median household income in Eureka is $43,750 compared to $66,544 in Fairfield (-34.3%). Fairfield offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Eureka spend roughly 27.8% of their income on rent, more than the 12.3% in Fairfield.

Climate-wise, Fairfield is notably warmer with an average of 44.6°F compared to 39.5°F in Eureka. Eureka receives more rainfall at 26.1" per year compared to 14.8" in Fairfield.

Income & Cost

Cost of Living Index
Eureka
77
Fairfield
70
10% cheaper
Median Household Income
Eureka
$43,750
Fairfield
$66,544
34% higher

Housing

Median Rent
Eureka
$1,012
Fairfield
$683
33% cheaper
Median Home Value
Eureka
$172,300
15% cheaper
Fairfield
$203,000
Population
Eureka
2,009
Fairfield
746

Salary Equivalency Calculator

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Everyday Prices

BLS Average Prices by metro area

Gasoline (regular)
Eureka
Fairfield $2.96
US $3.07
🥚
Eggs (grade A, large)
Eureka
Fairfield $2.41
US $2.50
🥛
Milk (whole)
Eureka
Fairfield $3.88
US $4.03
🍞
Bread (white)
Eureka
Fairfield $1.79
US $1.85
🍗
Chicken breast
Eureka
Fairfield $4.00
US $4.14
Electricity
Eureka
Fairfield $0.14
US $0.19

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
Eureka 39.5°F
Fairfield 44.6°F
Summer High
Eureka 73°F
Fairfield 84°F
Winter Low
Eureka 15°F
Fairfield 15°F
Rainfall
Eureka 26.1"
Fairfield 14.8"
Rainy Days
Eureka 151d
Fairfield 98d