Welcome to the Lake County Geographic Information Systems (GIS) and Mapping Division home page. The GIS and Mapping Division is part of the county's Information Technology Department.
The GIS Division is responsible for the maintenance of parcel maps and taxing district boundary maps used in the tax assessment process and for many other purposes. There are over 6,500 individual parcel map pages, all of which may be viewed in our Tax Assessment Map Gallery.
We also support and coordinate the development of GIS computer applications in county agencies and work with almost 150 federal, state, regional and local government agencies and non-profit organizations to promote the growth of GIS and its use to benefit citizens in our area.
The GIS Division evolved from the Lake County map department which was created in 1941, a few months before the start of World War II. An interdepartmental study in 1981 recognized that the information then being kept on paper maps would be a powerful resource for county agencies if transformed into a computer based geographic information system, something we have been working on together since then.
We have developed an interactive mapping capability for public access on the county website which is intended to let citizens use GIS tools to explore, answer questions and make maps on the Internet. Interactive GIS Applications.
Our office also offers a number of digital data products for sale, including aerial photography, contour data and other GIS themes.
Some of our other responsibilities include:
- Assigning addresses to property in unincorporated Lake County
- Consolidating and dividing tax parcels for tax assessment and billing purposes
- Assigning Property Identification Numbers (PINs) to tax parcels
- Subdividing and consolidating tax parcels pursuant to deeds, subdivision plats and other legal documents
- Maintaining basic parcel information in the County's tax system
- Special studies involving spatial analysis
- Development and maintenance of foundational GIS data needed for county programs including digital aerial photography, topography and environmental data.
