I'm fond of telling people that San Francisco is the most densely populated city in the United States after New York.
Well, it's not exactly true. There are a few smaller cities (bordering larger ones) that are denser — Guttenberg, N.J., Somerville, Mass., West Hollywood, etc. I learned all this on a cool Wikipedia page listing cities by population density. Check it out.
It is fair to say that Ess Eff is No. 2 after New York among large cities in density. So I'm going to keep feeding people the same line. Don't try and stop me.
It's interesting to look at how crazy-dense Paris is. People around here are always whining about how we need more open space. I say we need less open space — someone will just use it to defecate on the grass. And look at Paris (pictured below). Aside from a few areas, they hardly have any open space, and people love it! Maybe I will start attending city planning meetings demanding that San Francisco be more like Paris and then when I lure people to my side, I'll reveal the truth by showing them this Wikipedia page. Bwahahahaha.