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Department Alert

Boone County GIS data and maps are provided “as is” with no expressed or implied warranty of accuracy, correctness, or completeness. Data and maps do not replace or modify land surveys, deeds, and/or other legal instruments defining land ownership or use. Boone County disclaims all liability arising out of the use or misuse of this information for any purpose.


201 State St.
Boone, IA 50036
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Contact Information


Monday - Friday
8:00 a.m. - 4:30 p.m.
Holiday Closures

Our Team

Erin Sorenson
GIS Coordinator


What is GIS?  (Geographic Information Systems)

is a collection of computer hardware, software, and geographic data for capturing, managing, analyzing, and displaying all forms of geographically referenced information. The Boone County Assessor and Auditor started development of the GIS in 1999. It was originally installed on three computers. Since that time it has expanded to be used by most County departments.Boone County's GIS department uses everything from census data to recorded surveys and aerial photos to create a graphical representation of the county. These representations give the County a better idea of conditions and increase the speed and integrity of decisions. For more information about GIS, visit the National Geographic Society's GIS page

Report a GIS Discrepancy

Should you discover an error in the GIS data, email complete information of the nature of the problem to the GIS Coordinator. Include your name, a parcel ID and a description of the problem. A screenshot is helpful as well.

Report a GIS DIScrepancy

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Mission Statement

The mission of Boone County is to be accountable to its citizens in providing innovative and high-quality government services in an economical, fair, professional, and courteous manner to enhance and protect the health, welfare, and safety of those who live and work in Boone County.