Since Release 22A2, the election districts, congressional districts, and state senate districts available for download represent the political boundary changes implemented by the NYC Board of Elections after approval of new redistricting maps by the New York Court of Appeals on May 20, 2022.Ī note about new 2020 Census geographies:Ģ020 Census operations include the revision of statistical geographies, such as census tracts and blocks. To receive alerts when new data sets or updates are available, subscribe to our BYTES of the BIG APPLE RSS Feed.Ĭity Planning’s data sets are also available on the NYC Open Data platform along with over 1000 data sets from other city agencies.įor earlier versions of data sets, see the BYTES of the BIG APPLE archive page.Ī note about new political redistricting geographies: The BYTES of the BIG APPLE™ family of software, data and geographic base map files can be downloaded here for free. However, if you do copy a shapefile outside ArcGIS, be sure to copy all the files that make up the shapefile.The Department of City Planning is committed to making its public data freely available to developers and to all members of the public. When copying shapefiles, it is recommended that you do so in ArcCatalog or by using a geoprocessing tool. When viewing shapefiles in ArcCatalog (or any ArcGIS application), you will only see one file representing the shapefile however, you can use Windows Explorer to view all the files associated with a shapefile. cpg-An optional file that can be used to specify the codepage for identifying the characterset to be used.Įach file must have the same prefix, for example, roads.shp, roads.shx, and roads.dbf. xml-Metadata for ArcGIS-stores information about the shapefile. prj-The file that stores the coordinate system information used by ArcGIS. mxs-Geocoding index for read/write shapefiles (ODB format). ixs-Geocoding index for read/write shapefiles. A new attribute indexing model has been developed for shapefiles and dBASE files. ArcView GIS 3.x attribute indexes for shapefiles and dBASE files are not used by ArcGIS. atx file is created for each shapefile or dBASE attribute index created in ArcCatalog. aih-The files that store the attribute index of the active fields in a table or a theme's attribute table. fbx-The files that store the spatial index of the features for shapefiles that are read-only. sbx-The files that store the spatial index of the features. Attribute records in the dBASE file must be in the same order as records in the main file. There is a one-to-one relationship between geometry and attributes, which is based on record number. dbf-The dBASE table that stores the attribute information of features required. shx-The index file that stores the index of the feature geometry required. shp-The main file that stores the feature geometry required. The shapefile format defines the geometry and attributes of geographically referenced features in three or more files with specific file extensions that should be stored in the same project workspace. A shapefile is one of the spatial data formats that you can work with and edit in ArcGIS. Shapefiles are a simple, nontopological format for storing the geometric location and attribute information of geographic features.
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