Geographic Information Systems (GIS)

The GIS Department provides mapping services, software, training, and other spatially-related information to county departments. 

GIS also provides web-based maps for the public. Click on the Web Map Applications link to see what is currently available.

GIS data can be used to perform robust spatial analysis to assist with planning and decision making efforts. 

GIS Special Projects

The GIS Department is available as a resource for Cowlitz County Departments, agencies and the public. From the creation of special maps including school bus route maps, fire district maps, precinct maps, drone mapping for SAR missions, and many other quality mapping projects, the GIS Department is ready to work with you to meet your specialized mapping needs.

Access specialized GIS services by completing our online Project Request form here:

The GIS Project Request Flyer has more information.

Terms of Use

Cowlitz County (County) provides GIS information to the general public and has not tailored public GIS information for accuracy for any specific, official purpose. The information contained therein was generated from GIS data maintained by different sources and agencies. Areas depicted by these digital products are approximate, and are not necessarily accurate to mapping, surveying, or engineering standards. These digital products are for illustration purposes, only, and are PROVIDED "AS IS" AND "WITH ALL FAULTS". They are not intended for site-specific decision making, are subject to ongoing amendments, and may not be complete or accurate.

Under no circumstances, including, but not limited to, negligence, shall the County be liable for any direct, indirect, incidental, special or consequential damages that result from the use of, or the inability to use, the County materials. Conclusions drawn from this information are the responsibility of the user, and the user specifically acknowledges and agrees that the County is not liable for any defamatory, offensive or illegal conduct of any user. Although the County has endeavored to provide accuracy and correctness of the materials, the County assumes no responsibility or liability even if the County is advised of the possibility that the information may not be accurate. If a user is dissatisfied with the County materials, or with any of these terms and conditions of use, their sole and exclusive remedy is to discontinue using these materials.

To the extent this information is held by Cowlitz County under copyright and trademark laws, you may not modify, copy, reproduce, republish, upload, post, transmit or distribute in any way any material from this site including code and software. You may download or print material from this site only for your personal, non-commercial use pursuant to RCW 42.56.070(9), provided you keep intact all copyright and other proprietary notices.