Horse show organizations are as common as horse organizations, but the idea of an association of horse show exhibitors was a new concept when the idea became a reality in Los Angeles County in 1960. Thus the way was paved for exhibitors to have a voice in the operation of the horse shows at which they exhibited.
The Los Angeles County Horse Show Exhibitors Association, as the organization was originally called, came into existence with the following aims:
From a modest beginning of eighteen members and four approved horse shows, the Los Angeles Hunter Jumper Association has grown to its present size of over eight hundred members and 58 sanctioned horse shows. In 2006, the name of the organization was changed to Los Angeles Hunter Jumper Association (LAHJA). This change also emphasized the relationship to USEF and USHJA of which it is an affiliate member.