State taxation of IRA withdrawal after 59 1/2

I'm over 59 1/2 and made traditional IRA withdrawals (tax-deferred) earlier this year. I live in Missouri and want to know how my withdrawal total will be taxed in my state. I know how federal taxation works but am not clear about state taxation. I have lived in 3 different states in which my IRA was accrued but currently reside in Missouri. Thanks for your help and Who Dat!

Walter