The average county's average sales tax rate is 9.194 percent. This includes the statewide sales tax.
By state law, part of the revenue on some of the county's sales tax collections is shared with Johnson County cities. The county generally receives approximately 62.7 percent of the revenue and the cities get approximately 37.3 percent of the collections for their discretionary use for the Public Safety I, II and III sales tax. The County receives approximately 25.4 percent of the local sales tax while the cities receive 74.6 percent. The County receives 100 percent of the Stormwater sales tax.