Marriage drops the probability of child poverty by 82%. U.S. Census Community Facts reports the median family income in married couple households with their own children is $82,163; for a male headed household with children it is $37,127; female headed household with children is $24,349. These figures do not reflect wealth transfer gov't programs such as SNAP, Medicaid, public housing, day care, and TANF. Marriage is a much greater fighter of poverty than adding years of education to a single parent.
"CHILDREN CHARACTERISTICS more information 2009-2013 American Community Survey 5-Year Estimates" http://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?src=CF