Webto see if spending on jails has changed in line with local incarceration numbers, vera examined the county jails in 48 large cities. Since 2011, jail budgets increased 13. Webdrawing on guidance from leading experts in the field, the report identifies the items that must be included to calculate the taxpayer cost of prison accurately, provides the tax. Webannual cost to families of prison phone calls and commissary purchases: $2. 9 billion +. Percent of formerly incarcerated people who are unemployed: Webbelow, we have provided comprehensive information about mclennan county’s adult population at various stages of criminal justice system involvement. Criminal justice reforms and corrections cost forecasts require appropriate estimates of the marginal costs of incarceration to adequately assess cost.