Estimated May construction unemployment rates fell in 45 states on a year-over-year basis, rose in four states and were unchanged in one state (Alabama), according to an analysis of U.S. Bureau of Labor Statistics data by ABC.

The May 2018 not seasonally adjusted national construction unemployment rate fell 0.9 percent from May 2017 to 4.4 percent, the lowest May rate on record. At the same time, the construction industry employed 291,000 more workers nationally than in May 2017.

“May proved to be an excellent month for construction employment, despite the ongoing shortage of skilled construction workers,” said Bernard M. Markstein, Ph.D., president and chief economist of Markstein Advisors, who conducted the analysis for ABC. “In addition, contractors are contending with a rise in building materials prices and the likelihood of further increases due to proposed tariffs on many inputs into construction.”

Because these industry-specific rates are not seasonally adjusted, national and state-level unemployment rates are best evaluated on a year-over-year basis. The monthly movement of the rates still provides some information, although extra care must be used in drawing conclusions from these variations.

From the beginning of the data series in January 2000 through May 2017, the national NSA construction unemployment rate from April to May has declined every year but one (May 2009). The rate for May 2018 was down as well, decreasing 2.1 percent from April. Among the estimated state construction unemployment rates, all were down except for one, Wyoming, which was up 0.9 percent from April.

The Top Five States

The states with the lowest estimated NSA construction unemployment rates in order from lowest to highest were:

1.      Iowa, 0.9 percent

2.      Vermont, 1 percent

3.      South Dakota, 1.4 percent

4.      Maine and Montana (tie), 1.6 percent

Two of these top states were in the top five in April: Iowa and Vermont.

Iowa had the lowest rate in May, up from second lowest rate in April based on revised data (previously reported as tied with North Dakota for the lowest rate). It was the state’s lowest May rate on record since the beginning of the estimates in 2000.

Vermont had the second lowest May construction unemployment rate, up from tied with Utah for fourth lowest in April based on revised data (previously reported as sixth lowest rate). It was also the state’s second lowest May rate after last year’s 0.7 percent rate.

South Dakota had the third lowest May construction unemployment rate, up from tied with Kansas and Wisconsin for 11^th lowest in April. It was the state’s second lowest May rate after the 1.2 percent rate in May 2015.

Maine and Montana tied for the fourth lowest May rate. For Maine, this was a significant improvement from tied with Nevada for 28^th lowest in April. The state also had the nation’s largest year-over-year drop in its rate, down 3.3 percent, and the third largest monthly decline, down 5.4 percent. For Montana, May’s ranking was an improvement from eighth lowest in April. For both Maine and Montana, it was their lowest May rate on record.

North Dakota, which had the lowest rate in April, fell to sixth lowest in May, 1.7 percent. Nonetheless, it was the state’s second lowest May rate behind the 1.3 percent rate in May 2015.

Wyoming, which had the third lowest rate in April, dropped to 14^th lowest in May, 3.1 percent. It was the only state to post an increase in its rate from the previous month (up 0.9 percent) and one of the only four states to see an increase in its year-over-year rate (up 0.4 percent).

Utah, which tied with Vermont for the fourth lowest rate in April, tied with Minnesota for the eighth lowest rate in May, 1.9 percent.

The Bottom Five States

The states with the highest NSA construction unemployment rates in order from lowest to highest were:

46.   Kentucky, 7.6 percent

47.   Arkansas and West Virginia, 7.7 percent

49.   Mississippi, 10.3 percent

50.   Alaska, 11.1 percent

Four of these states—Alaska, Arkansas, Mississippi and West Virginia—were also among the bottom five states in April.

For the 11^th month in a row, Alaska had the highest unemployment rate in the nation. Since these estimates are not seasonally adjusted, a high construction unemployment rate for the state often occurs from late fall through early spring. However, its May rate—its fifth highest May rate over 19 years—continues a troubling trend. Still, the state posted the nation’s largest monthly decline, down 8.2 percent from April.

Mississippi had the second highest rate in May—the same as in April—based on revised data (previously reported as the seventh highest rate).

Arkansas and West Virginia tied for the third highest rate in May. For Arkansas, that was the same as in April based on revised data (previously reported as tied for the second highest rate with New Mexico). For West Virginia, that compared to fourth highest rate in April based on revised data (previously reported as the sixth highest rate). It was also the state’s lowest May rate since 7.2 percent in May 2013.

Kentucky had the fifth highest rate in May compared to being tied with New York for the seventh highest rate in April.

To better understand the basis for calculating unemployment rates and what they measure, see the article Background on State Construction Unemployment Rates.