In the United States, Iβd probably name Oregon City, the famous end of the Oregon Trail and the first city founded west of the Rocky Mountains during the pioneer era. Its population is only 37,000.
Dildo, Newfoundland, Canada: 803 people as of 2021.
Someone here mentioned Vulcan, Alberta - however given the qualifiers of country and size, its 1769 people disqualifies it.
Also, though I am a Trekkie myself and know that Vulcan is well known in those circles, itβs virtually unheard of outside them.
Meanwhile, Dildo:
https://www.cbc.ca/news/canada/newfoundland-labrador/odd-stories-of-2019-1.5389442