Abstract: A method and system for automating the assessment and determination of environmental risks for properties and regions. Property attribute and characteristic data is aggregated from multiple databases and indexed by a parcel identifier, such as an assessor's parcel number (APN). Environmental data from various databases, such as Federal, State, County, Parrish, Municipality/Town, Tribal, etc. is also retrieved and linked to parcels. An environmental risk assessment score may be calculated based on various attribute, characteristic, and environmental data associated with a given parcel, a parcel and adjacent properties, and/or selected areas or regions. Environmental risk assessment maps may also be generated.