Jefferson County Seal
Jefferson County,
Missouri
Est. 1818
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GIS Data and Maps

 

Contact:  636-797-5041 (p) or gisassessor@jeffcomo.org or 636-797-5470 (f)

 

 

The Assessor has established a policy to make office records as open and easy to obtain as possible.  

 

In-House Access 

The office staff is knowledgeable and can answer most inquiries over the phone or by email.  Two computers are available at the front counter for public access to records and GIS data including parcel lines, subdivision lot lines and text, roads, ownership data, taxing districts, floodplain, contours, and aerial photography. 

 

Online Access 

Property records are available online under Personal Property and Real Estate Search.  The Assessor's Online GIS Services offers a Property Viewer that allows searches by owner, parcel ID, property address, and by spatially zooming to specific area.  If you are looking for more specific information it may require a visit to the office.

 

Additional web applications can be found on the Assessor's home page including a Map Gallery for pdf maps.

 

For Purchase

The assessor's data files (tax rolls) are available for purchase in digital format.  Data can also be requested outside the scope of the Assessor's responsibilities or beyond a reasonable expectation.  The Assessor's office maintains a comprehensive GIS division whose duties are to maintain property maps, taxing entity boundaries, perform in-house analysis of data, and provide data on the website.  As a benefit to the taxpayers and businesses; the division can perform reproducible maps and custom work including analysis when time allows.  A fee may be charged to cover the cost of creating this data.