The MacIver News Service reports on the average compensation at Milwaukee Public Schools:
2009-2010 school year (aka FY2010) – $56,500 in salary, $95,316 including benefits
2010-2011 school year – $56,500 in salary, $100,005 including benefits (or a 4.92% increase overall)
Meanwhile, according to the Census Bureau, the median per-capita income between 2006 and 2008 in the city was $19,092, with the median family income $42,950. I doubt the average resident in the private sector had $40,000 in benefits to boost their total compensation, or the equivalent of 12 weeks of vacation.