The Federal Reserve Economic Data (FRED) database contains the total nonfarm employment level. Columbia County's average nonfarm employment was 10,740 in 2007. According to the BLS, total nonfarm employment in Massachusetts in 2005 was about 3.2 million. The county's average nonfarm employment was 17,480 in 2007. The county's average nonfarm employment was 18,820 in 2007. During the 1950s and 1960s nonfarm uses of the soil increased rapidly. HOLC was only applicable to nonfarm homes, worth less than $20,000.