All Employees: Construction: Heavy and Civil Engineering Construction in Idaho was 6.90000 Thous. of Persons in January of 2021, according to the United States Federal Reserve. Historically, All Employees: Construction: Heavy and Civil Engineering Construction in Idaho reached a record high of 6.90000 in January of 2021 and a record low of 4.60000 in January of 1991. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Construction: Heavy and Civil Engineering Construction in Idaho - last updated from the United States Federal Reserve on April of 2024.