As the fourth oldest city in Los Angeles County, the City of Monrovia has a rich history filled with interesting people and places. Throughout Monrovia there are numerous buildings that have historic value, some individually and others as part of a collection of buildings that help tell the story of Monrovia. As of 2017, there were over 140 designated landmarks and two historic districts: Wild Rose Tract and North Encinitas.
PanGIS GIS specialists created a geodatabase using ArcGIS to map the historic districts and historic-era buildings in the City of Monrovia. Beyond the district boundaries, each building was mapped by decade and other variables, allowing for GIS based analysis and informative maps.