<80k household income as lower class? That's insane. Maybe in the upscale districts of the biggest cities, but everywhere else 60k/year is solidly middle class. In the rural areas of Florida, 60k/year might even be considered Upper Class.
That's just my personal definition of lower income seeing as how places even in bad parts of downtown are about 800-1000 per month for 2 bedroom. Add 300 more for 1 more bedroom.