in the u.s. manufacturing sector unionized jobs have
Labor unions in the United States Union membership had been declining in the US since 1954, and since 1967, as union membership rates decreased, middle class incomes shrank correspondingly.[46] In 2007, the labor department reported the first increase in union memberships in 25 years and the largest increase since 1979. Most of the recent gains in union membership have been in the service sector while the number of unionized employees in the manufacturing sector has declined. Most of the gains in the service sector have come in West Coast states like California where union membership is now at 16.7% compared with a national average of about 12.1%.[47] Historically, the rapid growth of public employee unions since the 1960s has served to mask an even more dramatic decline in private-sector union membership.
Deindustrialisation by country In the United States, deindustrialisation is mostly a regional phenomenon, centred on the Rust Belt of the original industrial centres from New England to the Great Lakes. While many Americans put the timing of industrial crisis as 1979 to 1984, in fact the most massive loss of US manufacturing jobs occurred in the 21st century: one third of US manufacturing jobs disappeared between 2001 and 2009, according to the US Bureau of Labor Statistics https://data.bls.gov/timeseries/CES3000000001.