Hal_Al
Level 15

State tax filing

School District codes, listed by county,  begin at page 44 at http://www.tax.ohio.gov/portals/0/forms/ohio_individual/individual/2017/PIT_IT1040_Booklet.pdf

Where do you live?
Why are you asking? If you are filing a non resident Ohio return, you are not asked for a School District Number.