We receive our pattern altitude information from AOPA. Traffic Pattern Altitude (TPA) is listed in the A/FD. If the TPA is not published, then the pattern altitude is determined by our AOPA source utilizing local sources for the best information.
Image 1: TPA published in A/FD is displayed in the information section for this airport.
Image 2: AOPA sourced pattern altitude since no TPA is published in the A/FD.