<i>largest in the world?</i><p>Largest by total number by a huge margin (2.2 million, with the next largest being China with 1.7 million), but we&#x27;ve fallen to the #2 spot when measured per capita. Newly #1 there is Seychelles with about 700 prisoners out of a population of 90,000.<p>Source: <a href="http:&#x2F;&#x2F;www.prisonstudies.org&#x2F;highest-to-lowest&#x2F;prison_population_rate?field_region_taxonomy_tid=All" rel="nofollow">http:&#x2F;&#x2F;www.prisonstudies.org&#x2F;highest-to-lowest&#x2F;prison_popula...</a>