It’s interesting to me to see what factors they included as determining happiness.
I think there are other factors that I might consider in ranking the happiness of a city. I’m trying to think of factors where you might be able to find statistics to compare.
Affordability of homes. (It’s easier to be happy and serene if you can keep a roof over your head.)
Number of families vs. number of singles. (A city without children can’t be a really happy city.)
Membership in churches. (A happy city is one that worships God.)
Charitable contributions. (In a happy city people support others.)
Number of parks. (In a happy city people can enjoy the outdoors in places that are clean and safe.)
Number of homeless. (A city with a huge homeless population can’t possibly be happy.)
Violent crime. (A happy city is a peaceful city.)