(CNSNews.com) - The unemployment rates in Tennessee, Idaho and North Dakota hit historic lows this August with each state registering its lowest rate of unemployment since the Bureau of Labor Statistics began tracking state-by-state unemployment in 1976.

“In August 2017, unemployment rates for North Dakota (2.3 percent), Idaho (2.9 percent), and Tennessee (3.3 percent) were at their lowest levels since the state unemployment data series began in January 1976,” BLS said in an analysis released Thursday.

“Among states, North Dakota had the lowest unemployment rate, followed by Colorado (2.4 percent), Hawaii (2.6 percent), and New Hampshire (2.7 percent),” said BLS. “Alaska had the highest unemployment rate, at 7.2 percent.”

In the 41 years that BLS has been tracking state-by-state unemployment rates, North Dakota had its highest unemployment rate (6.2 percent) in March 1983. Idaho had its highest unemployment rate (10.2 percent) in December 1982. Tennessee had its highest unemployment rate (12.9 percent) in January 1983.

While Tennessee, Idaho and North Dakota hit historical lows in their unemployment rates this August, six other states--Colorado, Arkansas, Maine, Oregon, Washington, Mississippi, California—also hit historical lows in their unemployment rates earlier this year. (For the BLS data on the highest and lowest unemployment rates each state has experienced since January 1976 click here.

California, which had its historically highest recorded unemployment since 1976 in October 2010 (12.2 percent) had its lowest rate this June (4.7 percent).

Mississippi, which had its highest rate since 1976 in April 1983 (12.8 percent) had its lowest rate this May (4.9 percent).

Washington, which had its highest rate since 1976 in November 1982 (12.2 percent), had its lowest rate in July (4.5 percent).

Oregon, which had its highest rate since 1976 in May 2009 (11.9 percent), had its lowest rate in May (3.6 percent).

Maine, which had its highest rate since 1976 in January 1977 (9.0 percent), had its lowest rate in May (3.6 percent).

Arkansas, which had its highest rate since 1976 in February 1983 (10.3 percent) had its lowest rate this July (3.4 percent).

Colorado, which had its highest rate since 1976 in October 2010 (8.9 percent), had its lowest rate in June (2.3%).

The highest rate of unemployment any state has registered since 1976, according to the data published by BLS, was the 18.8 percent unemployment West Virginia experienced in February 1983.

The lowest rate of unemployment any state has registered since 1976 was the 2.1 percent Virginia experienced in November 2000.