What city has no people?

kijong-dong is actually a propaganda city in North Korea where no one lives there.

Also Chernobyl in the Ukraine.

ghost city - Pripyat , Ukraine ...

Most places in Madagascar are uninhabited, just occupied by some animals.
You can probably pick any-one of these cities on this link to a map of Madagascar:

https://www.cia.gov/library/publications/the-world-factbook/maps/maptemplate_ma.html

Hope this helps! :)

p.s. i didn't bother mentioning the cities other people mentioned...thought i'd save you some time!