A list of US cities: SF has 3.3 million people.
https://en.wikipedia.org/wiki/List_o...es_urban_areas
1 New York--Newark, NY—NJ—CT 18,351,295 8,936.0 3,450.2 2,053.6 5,318.9
2 Los Angeles--Long Beach--Anaheim, CA 12,150,996 4,496.3 1,736.0 2,702.5 6,999.3
3 Chicago, IL—IN 8,608,208 6,326.7 2,442.8 1,360.6 3,524.0
4 Miami, FL 5,502,379 3,208.0 1,238.6 1,715.2 4,442.4
5 Philadelphia, PA—NJ—DE—MD 5,441,567 5,131.7 1,981.4 1,060.4 2,746.4
6 Dallas--Fort Worth--Arlington, TX 5,121,892 4,607.9 1,779.1 1,111.5 2,878.9
7 Houston, TX 4,944,332 4,299.4 1,660.0 1,150.0 2,978.5
8 Washington, DC—VA—MD 4,586,770 3,423.3 1,321.7 1,339.9 3,470.3
9 Atlanta, GA 4,515,419 6,851.4 2,645.4 659.0 1,706.9
10 Boston, MA—NH—RI 4,181,019 4,852.2 1,873.5 861.7 2,231.7
11 Detroit, MI 3,734,090 3,463.2 1,337.2 1,078.2 2,792.5
12 Phoenix--Mesa, AZ 3,629,114 2,969.6 1,146.6 1,222.1 3,165.2
13 San Francisco--Oakland, CA 3,281,212 1,356.2 523.6 2,419.5 6,266.4
14 Seattle, WA 3,059,393 2,616.7 1,010.3 1,169.2 3,028.2
15 San Diego, CA 2,956,746 1,896.9 732.4 1,558.7 4,037.0
16 Minneapolis--St. Paul, MN—WI 2,650,890 2,646.5 1,021.8 1,001.7 2,594.3
17 Tampa--St. Petersburg, FL 2,441,770 2,478.6 957.0 985.1 2,551.5
18 Denver--Aurora, CO 2,374,203 1,730.0 668.0 1,372.4 3,554.4
19 Baltimore, MD 2,203,663 1,857.1 717.0 1,186.6 3,073.