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HOW WE DETERMINED NUMBERS FOR EACH NEIGHBORHOOD

Within the boundaries of cities, towns, and unincorporated communities, the U.S. Census Bureau breaks down data for individual census tracts and smaller sub-divisions (such as census block groups and census blocks). It does not otherwise offer tallies for city neighborhoods or sub-communities. For the City of Los Angeles, there are no official boundaries for neighborhoods anyway, other than for zip codes, city and neighborhood council districts, and municipal planning and operational districts. In order to offer population data for individual neighborhoods and communities within Los Angeles, the Almanac had to first determination some kind of neighborhood boundary map for the city, by studying zip code maps, city planning maps, neighborhood council maps and a variety of other official and unofficial neighborhood descriptions. We matched our boundary map as closely as possible with census tract maps so as to determine which census tracts (with corresponding population data) should be counted within those boundaries. Although most census tracts comfortably fit within our determined neighborhood boundaries, some did not. Some census tracts partially or significantly overlapped into two or more neighborhoods. Since we determined not to try further subdividing census tract data, we had to make a number of judgement calls for which neighborhood a particular census tract should be counted. Where a significant portion of any of these overlapping census tract lay in any one neighborhood, we assigned all of that tract's population data to that one neighborhood. The numbers above are the result of this process. Of course, although our numbers are derived from Census data, these tallies for Los Angeles neighborhoods are not official U.S. Census Bureau or City of Los Angeles numbers and should be considered estimates. Please also note that the accumulated total for all neighborhoods above may be different than the official U.S. Census tally for the entire City of Los Angeles.