Carmarthen currently has 33 mapped postboxes recorded by The Postbox Hunter. The postboxes in Carmarthen include 4 recorded royal cyphers. The most common is EIIR, recorded on 23 postboxes, representing 69.7% of the mapped total. The complete recorded cypher list is: EIIR (23), GVIR (3), GR (2) and EVIIR (1). Among the recognised royal cyphers in the data, EVIIR is the earliest recorded and EIIR is the most recent. The most commonly recorded postbox type is Pillar, with 14 mapped examples. The data contains 3 different recorded postbox types. Across the available tagging data, 6 designs are represented. This information is generated from the latest postbox location and tagging data available to The Postbox Hunter.