Indiana does not charge an early withdrawal penalty on distributions taken from a retirement account before the age of 59 1/2.
In most counties, you are safe if you have 5% withheld for state tax (based on a county tax rate of 1.5% or less). However, there are some counties that have a higher county tax rates. A complete list of Indiana county tax rates can be found at https://www.in.gov/dor/files/dn01.pdf
Note: Effective January 1, 2017, the state tax rate in Indiana drops from 3.3% to 3.23%