You're comparing SF in 2008 to Brooklyn in 2017. Click the source link, and you'll see that current estimate for the Mission (30,408/mi^2) is much closer to tha

You're comparing SF in 2008 to Brooklyn in 2017. Click the source link, and you'll see that current estimate for the Mission (30,408/mi^2) is much closer to that of Brooklyn. The difference is only ~20%. http://www.city-data.com/neighborhood/Mission-District-San-Francisco-CA.html http://www.city-data.com/neighborhood/Mission-District-San-F...