Over 35 years of retirement, Montoya would collect as much as $1.789 million, according to a projection by Local Government Information Services (LGIS), which publishes McHenry Times.
Montoya, 60, who currently lives in Port St. Lucie, FL earned $49,688 in her final year at Community USD 300.
The projection assumes Montoya will receive 55.8 percent of that total - $27,729 - in her first year of retirement, then 3 percent annual increases thereafter, compounded.
After three years of retirement, Montoya will have already received $85,708 in retirement benefits, or more than the sum total of her contributions to the state teachers' pension fund.
According to the Illinois State Board of Education (ISBE), 34.2 percent of Community USD 300 students met or exceeded the standards for the "PARCC" exams. ISBE reported that 48.4 percent of district's graduates were deemed "college ready" last year.