If census information is used to apportion government funds, you'd want the money to go to where they were from (which, if it has such a high number of prisoner

If census information is used to apportion government funds, you'd want the money to go to where they were from (which, if it has such a high number of prisoners that their population numbers are affected, probably really need the money), as opposed to going to whatever community managed to lobby to build the prison.