National Diaper Bank Network
This site gives get information on diaper need, including state specific statistics, instructions for hosting a diaper drive and more.

Poverty USA
This site has graphs, maps and charts that let you look at poverty markers by state and year.

Children’s Defense Fund
Child welfare includes anti-poverty measures, access to early childhood education and prevention of child abuse and neglect. This site contains a wealth of information, including state specific child welfare statistics.