Diversity Data Kids
(https://data.diversitydatakids.org/dataset/18101_1_p-children-aged-0-17-with-a-disability--percent--by-race-ethnicity) The number of children aged 0-17 years with at least one of the following: serious difficulty with hearing, vision, cognition or activities of daily living divided by the number of children aged 0-17 years, times 100, for the total population and by race/ethnicity.
Children aged 0-17 with a disability (percent) by race/ethnicity
Disability and Health Data System (DHDS) is an online source of state-level data on adults with disabilities. 2020 CDC https://data.cdc.gov/Disability-Health/DHDS-Prevalence-of-Disability-Status-and-Types-by-/qjg3-6acf
State Data (https://www.statedata.info/) Population Data from the American Community Survey (Post 2007), Any Disability