Firth is located in Idaho. Firth, Idaho has a population of 439. Firth is less family-centric than the surrounding county with 34.34% of the households containing married families with children. The county average for households married with children is 38.36%.
The median household income in Firth, Idaho is $38,500. The median household income for the surrounding county is $51,307 compared to the national median of $57,652. The median age of people living in Firth is 37.9 years.
The average high temperature in July is 80.6 degrees, with an average low temperature in January of 13.2 degrees. The average rainfall is approximately 14.1 inches per year, with 69.4 inches of snow per year.
