According to the source, it never seemed to have reached 100,000 in Aztec times, though Mexico City would hit that number of people in the 18th century.
I don't know what the general concensus is on its population at peak, but the range of estimates seem to be pretty wide depending on which historian you ask (20,000 - 400,000). Chandler seems to put Tenochtitlan at a population of 80,000 in 1500 AD.
Edit: Seems like modern concensus claims that 200,000 at peak was most likely the case for Tenochtitlan, which would put it on par with Paris and Constantinople at the time.
Chandler's book is likely using older and outdated research for Mesoamerican cities, since it's from the 1980s. I've decided to add Mexico City because of this, but I've given a rounded date of circa 1500 since it isn't exactly clear when the 100k mark was passed.
I don't know what the general concensus is on its population at peak, but the range of estimates seem to be pretty wide depending on which historian you ask (20,000 - 400,000). Chandler seems to put Tenochtitlan at a population of 80,000 in 1500 AD.
Chandler's book is likely using older and outdated research for Mesoamerican cities, since it's from the 1980s. I've decided to add Mexico City because of this, but I've given a rounded date of circa 1500 since it isn't exactly clear when the 100k mark was passed.