2510
School District codes, listed by county, begin at page 41 at http://www.tax.ohio.gov/portals/0/forms/ohio_individual/individual/2017/PIT_IT1040_Booklet.pdff
Or listed alphabetically starting a page 41 at
http://www.tax.ohio.gov/portals/0/forms/ohio_individual/individual/2018/PIT_IT1040_Booklet.pdf
