Los Angeles Neighborhood Boundaries

US Census Tract Boundaries

Cartographic Boundary Shapefiles - Places (Incorporated Places and Census Designated Places)
The cartographic boundary files are simplified representations of selected geographic areas from the Census Bureau’s MAF/TIGER geographic database. These boundary files are specifically designed for small scale thematic mapping.

Lookup/CrossWalk for Census Tract Number and Location and Neighborhood overlap of Center Point. The Neighborhood relationship is determined using https://docs.safe.com/fme/2017.1/html/FME_Desktop_Documentation/FME_Transformers/Transformers/centerpointextractor.htm where the center point is the point that is in the center of the feature's bounding box and when a center point of a tract was not found for a tract in a neighborhood, it uses a point that is guaranteed to be inside the area.

Los Angeles Boundaries