The following transcription was kindly sent to me by Richard Saunders as an aid to those trying to find births, deaths and marriages in Jamaica during the time of Civil Registrationn 1878-1930. These codes are used in the microfilms made by the Mormon church of Jamaican Civil Registration. The file is in .pdf format so you will need Adobe Reader or similar program to read it.
The file is in two parts, the first part has the codes listed by parish, the second part is an alphabetical list of Districts. Richard says that he believes the lists to be 97% complete.