William Johnson lived in enumeration district 1341 which belongs to the Manhattan tract 210.

This tract has a total population of 3183, which is an increase of 62 since 1910. This tract has a predominantly black population, with a total of 2381 ( 75% ) black residents. There are 152 whites who are 3rd (or higher) generation immigrants, which is about 5% of the total. The largest white ethnic group in this tract is Irish . They have a population of 208, which comprises about 7% of the total tract population. About 39% of the Irish residents are 1st generation. Italians are the second largest with 130 ( 4% ), and Russians are the third with 121 ( 4% ). The first generation immigrants make up about 55% and 59% of these groups, respectively. There are 70.7 persons per acre in this tract, which is an increase of 1.4 since 1910. About % of families own their homes.