This geoprocessing tool provides the ability to Geocode Addresses in Arkansas using ArcGIS Desktop or the REST URL Endpoint.
This is a composite locator, meaning that it looks for the address in this order: 1) 911 Address Point; 2) Arkansas Centerline File, and; 3) USPS Zip+4 Points, Centroid to Muni Boundaries, Centroid to Zip Code Polygons derived from ZIP+4 geoprocessing to identify minimum bounded areas.
A zipped directory containing the Composite Locator and its the respective sub locators can be downloaded and used in ESRI software at https://geostor-uploads.s3.amazonaws.com/maps/Locator/ASDI_Composite_Locator.zip
REST Endpoint URL Hints:
To get decimal degrees, set the outSR (ie: Output Spatial Reference) parameter to: outSR=4326
Example Geocode used here (https://gis.arkansas.gov/arcgis/rest/services/Locator/ASDI_Composite_Locator/GeocodeServer/geocodeAddresses):