ZIP+4® centroid coordinates have been realigned and published for Calhoun, Desha, Van Buren, Woodruff, and Izard Counties.  For history on the publication of ZIP+4® centroid coordinates visit this article.

ZIP+4® on GeoStor: http://bit.ly/zip_4_centroids
ZIP+4® on Statewide FTP: ftp://ftp.geostor.arkansas.gov/Public_Statewide/  TITLE: LOCAT_ZIP_PLUS_4