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description: This dataset represents an ongoing effort to approximate the geographic extents of 5 digit zip codes. The dataset was produced using a combination of methods and is based on several sets of source data. Methods include: 1) using local zip code polygon data obtained from counties and cities contained within these counties; 2) Identifying place locations (city, town, places) from the postal service website and address information system (AIS) and as a last result, building theissen polygons around usps places in unpopulated areas; and 3) editing line work using the 2000 Census TIGER line file's zip code attributes. In addition, AGRC has used the locations of mailing addresses known to be valid to fine tune this dataset.Improvements were made to 84321, 84235, 85326, 84332, 84339, Februaru 2016.The 84525 (Green River) and 84540 (Thompson) zip code boundaries were adjusted to follow the address grid quadrant boundaries, November 2015. Improvements were made to 84318 (Hyde Park) and 84341 (Logan), November 2015 Split the 84095 (South Jordan) zip code along the Bangerter Hwy to create the new zip code 84009 (South Jordan), July 2015.The 84747 (Loa) and 84716 (Boulder) zip code boundaries were adjusted to follow the address grid quadrant boundaries, January 2015.Improvements were made to 84773 (Teasdale) and 84775 (Torrey), January 2015.Improvements were made to the 84321, 84341 (Logan), 84302 (Brigham City), and 84307 (Corinne) zip code boundaries, November 2014.Improvements were made to the 84010 (Bountiful) and 84054 (North Salt Lake) zip code boundary, May 2014. The 84764 (Bryce Canyon City), 84766 (Tropic), 84718 (Cannonville), and 84759 (Panguitch) zip code boundaries were adjusted to follow the address grid guadrant boundaries, May 2014.Minor updates to St. George and Washington zip codes (84770, 84780, 84790), February 2013. Minor updates to Salt Lake City zip codes (84112, 84113) and Park City zip codes (84060, 84098), January 2013. Minor updates to Salt Lake City zip codes (84101, 84102, 84103, 84104, 84105, 84108, 84111, 84116, 84150), July 2012. Minor updates to West Valley City zip codes (84119, 84120), July 2012. Taylorsville zip code (84129) Update, July 2011. Minor updates July 2014, January 2011; June, November, December 2010.
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title: ZIP Codes
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culture: en-US
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