Here is my very first game lasting over a century, I present you WAN TOWN, with a mere 22k inhabitants as of May 2017.
On the upper hand it has a soccer stadium with a capacity of 25k 😀 (attendance is 1500 on average…).
I feel like there’s still a lot I have to learn regarding startegy. In particular I had troubles re-funding power stations every 50 years, requiring me to issue bonds a couple times. I think I have also invested way too early in various buildings for fun (2-station subway anyone?), leading to costly upkeep.