here is a way to llok at it.
Upper-upper class. "Old money." People who have been born into and raised with wealth.
Lower-upper class. "New money." Individuals who have become rich within their own lifetimes.
Upper-middle class. High-salaried professionals (i.e., doctors, lawyers, corporate executives).
Lower-middle class. Lower-paid professionals, but not manual laborers (i.e., police officers, non-management office workers, small business owners).
Upper-lower class. Blue-collar workers and manual labourers. Also known as the "working class."
Lower-lower class. The homeless and permanently unemployed, as well as the "working poor."
Wags - I have to think all states are different but I make below 75K and have 3 kids. We get by. My kids have new clothes, play sports, have bikes, get to go out to eat on occasion so I would not call it struggling.
I think the middle class wage in the Midwest would not compare to the left coast or right coast.