If we include smaller communes, then Wikipedia has a sizable list of intentional communities which is fun to explore. I found Cheran interesting, they had problems with organised crime coming into town and logging, disappearing people who tried to stop them, and the police and politicians were complicit, so the town kicked them all out. Now if you try to drive in with a political sticker on your car, it will get torn off at the checkpoint. A short Vice video on the place had some interesting interviews, including a local patroller who said crime plummeted and is now basically as simple as pub fights that locals can split up, and an interview with a political representative who was voted in, despite them not really wanting the job as they would get paid more in the previous job. Reminds me of a Douglas Adams quote:

[…] To summarize: it is a well-known fact that those people who must want to rule people are, ipso facto, those least suited to do it. […]