The Detroit Public Schools district has exceeded targeted fall enrollment by 137 students.
The district says in a release that 65,971 Kindergarten through 12th graders have enrolled.
Enrollment figures are based on the number of full-time students in the district at the end of the state's 10-day counting period.
They do not include 3,000 students in pre-Kindergarten programs and about 4,000 in district-authorized charter schools.
Detroit officials expect the enrollment number to increase during a remaining 20-day period allowed for counting students absent, but excused on Count Day.
Detroit had been losing students at a rapid pace, plummeting from 104,000 in 2007.
The district ended last school year with about 74,000 students. Officials say the drop over the summer has been the smallest "real-number and percentage" decline since 2006.