Idaho Has the 9th Best Economy in the USA

According to 24/7 Wall St.

I have some complaints about their list, though. How can a state be in the top 10 but you cannot afford to live there (e.g., California, Hawaii, etc) and the unemployment is terrible? 

9. Idaho
> 5 yr. GDP annual growth rate: +2.4% (6th largest increase)
> 2017 GDP: $62.6 billion (10th smallest)
> June 2018 Unemployment: 2.9% (tied — 7th lowest)
> 5 yr. annual employment growth: +2.4% (4th largest increase)

States with relatively affluent populations tend to prosper. Among the states with the 10 highest ranked economies, Idaho is the only one with a median household income that trails the national median. The typical state household has an income of $51,807 a year, compared to a national median household income of $57,617.

However, the state makes up for its low incomes by ranking among the best states in the country in GDP and employment growth, as well as by having one of the lower unemployment rates in the country. Between 2012 and 2017, state GDP and employment each grew at an average annual rate of well over 2%. The state’s 2.9% unemployment rate is nearly a full percentage point below the national rate of 3.8%.

Right-Mind