Douglas County Oregon Government Portal Assessor Department
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  Geographic Information Systems (GIS)

Douglas County Geographic Information Systems Department



Douglas County has been collecting digital data since the late 1980's. Our main goal in the beginning was to automate the assessment mapping and achieve a streamlined process for updating and sharing a common base. Then the work began...

We first developed a PLSS base and a land ownership dataset that was tied to the State Plane NAD27 coordinate system. All other information was built on this data set. Later the map was shifted to a State Plane NAD83 coordinate base as a whole with no adjustments. 

You will notice that not everything will line up exactly due to the process of years of collecting data from different sources at different reliability factors. This website is a work in progress which will improve as new or better information is made available

The use of new technology has given us the ability to distribute information to the public in a visual manner.

During the first visit you will be asked to install a plug-in that is used to display the map and allow advanced functionality. The plug-in is SVG from Adobe and requires administrative rights to install. It is harmless and is only required once. Please follow the instructions for installation.

The content of the website is organized into maps for different types of research. 

     Base Map - Locating the area of interest, assessment info, ownership, surveys
     Control - Find Vertical and Horizontal control points
     Gov Corners - Search for cadastral information

Basic ideas to remember:

          - All actions on the website are performed by a click, click procedure. There is no click and drag.

    -   All toolbars available at the top of the screen have a description of use in the help. The first time you enter this website you may want to browse the help to get a feel for how the website works and what each tool does.

    -  When selecting a feature on the map, there is a top down process that gives detail information. This can be changed by using the legend properties tool.  This may require a refresh. 

    - You should start with the binoculars to search using predefined queries that are designed for the type of data included in each map.  Enter your information following the example and hit find.

  - When a query results in multiple choices, use the push pin to select the desired result. The pushpin at the top will select all. Pushing the pin again will unselect the item.

       - When using the address search, be patient. The drop down is organizing every street in Douglas County by alphabetical order.

Ready to get started?     Enter Here

Assessor GIS Maps
-County Wide Taxing Codes (zipped format)
-Star Interactive Maps

-Douglas County GIS Pilot Project
-Bureau of Land Management Acreages

- Digital Mapping for Utility Companies(must use appropriate mapping software)
- NOTE!: Projection for the Shape Files are in NAD83, Oregon State Plane South, also in Meters
--------- Utility ShapeFiles(DBF format)2012
--------- Utility ShapeFiles(SHP format)2012
--------- Utility ShapeFiles(SHX format)2012

GIS Contacts
GIS Public Works
GIS Coordinator
Public Works Engineer
Kathy Thompson
GIS Surveyors
Surveyor Information
Terrie Franssen
Website Homepage
GIS Assessor
Assessor Information
Assessment Data/Maps
Wendell Lewis
Website Homepage
You are VISITOR Number:18523
Additional Information
Notice: The information provided here is for convenience ONLY.  The records located at the Douglas County Assessor's office are the one and only legal instruments for Assessment purposes.  Although reasonable attempts are made to maintain this information as accurate as possible, these documents are being provided as an informational convenience ONLY.