Federal, state, and local government investments in children vary by age. This report examines 2011 federal spending and 2008 total government spending on children age 0-2, 3-5, 6-11, and 12-18. We find that state and local governments provide three-quarters of total public investments in children age 6 and older, while the federal government provides three-quarters of investments in children age 0-2 and about half of investments in age 3-5. Total public spending is highest for school-age children, but federal spending is highest for the youngest children. These findings suggest that investments at all levels of government matter for children.