CTDS is an acronym for County Type District School. This number is (nine) 9 digits long and is used to identify a school, district or charter holder.
CTDS number breakdown:
- “C”= County number (2-digits long)
- “T”= Type number (2-digits long)
- “D”= District/Charter Holder ID number (2-digits long)
“S”= School Site ID number (3-digits long)



