[2] Its mission is to save and renew places meaningful to Mississippians and their history, which is accomplished by education, advocacy, and preservation.

MHT is supported by private resources that include special funding events, membership fees, grants, and gifts.

MHT is governed by a Board of Trustees, with day-to-day operation under the guidance of an Executive Director and staff located in Jackson, Mississippi.

Beginning in 1999, a recurring accomplishment of the organization has been its annual list of the Ten Most Endangered Historic Places in Mississippi.

In April 2012, Heritage Awards were presented during the Conference on Power of Preservation in Economic Development at Ocean Springs.