Perhaps this will post, if I do not name the programs!The cost of public assistance on behalf of these citizen children in illegal alien headed households will go down. (And this is simply due to  lower income earnings.)  

And every student in public school, regardless of status, costs around $8,000 to $12,000 a year each.

So on one hand, costs will rise, but on the other end tax funded services will drop substantially.

"The Cost of Welfare Use By Immigrant and Native Households" May 9, 2016
https://cis.org/Report/Cost-Welfare-Use-Immigrant-and-Native-Households

"Welfare Use by Immigrant and Native Households-An Analysis of Medicaid, Cash, Food, and Housing Programs" 2015
https://cis.org/Report/Welfare-Use-Immigrant-and-Native-Households

"The Fiscal Cost of Unlawful Immigrants and Amnesty to the U.S Taxpayer" 2013
http://www.heritage.org/immigration/report/the-fiscal-cost-unlawful-immigrants-and-amnesty-the-us-taxpayer