Frederick County, MDOverview This dataset provides detailed boundaries of zipcodes within Frederick County, facilitating spatial analysis and mapping at the postal code level. Feature Layers Zipcodes Layer : This layer represents the geographic boundaries of postal zipcodes. It includes polygon features delineating each zipcode's area along with associated postal office information. The geometries include area and perimeter measurements, enhancing spatial analyses related to size and dimensions of each zipcode region. Geographic Coverage The service covers Frederick County characterized by zipcodes within a region near latitude 39.2 to 39.7 and longitude -77.7 to -77.1, providing localized geographic data appropriate for regional planning or postal service applications. Use Cases Regional planning and resource allocation based on postal zones. Logistics and delivery route optimization relying on zipcode boundaries. Demographic and marketing analysis at the zipcode level.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/1c74fe6c5a984685ae9f3c860e126c23_0engFrederick County Open DataPublicFrederick County Zipcode Boundaries [Maryland--Frederick County]Web servicesMaryland--Frederick CountyMarylandLast Modified: 2026-03-09