The primary mission of the Jefferson County Central Services geographic information system (GIS) team is to develop and implement an effective countywide GIS for use by Jefferson County staff. In order to accomplish this goal, the team is involved in project related work that enhances all county data systems that utilize spatial and map information. This includes county information collected by Public Works, Planning, and the Assessor.

In addition, the GIS connects to other data sources that are of value to users of the GIS. These auxiliary data sources include document imaging files, aerial photos, assessor's data, etc.


The data available on this website including all maps, tables, numbers, graphics, and text (hereinafter collectively referred to as the "information"), is provided on an "AS IS", "AS AVAILABLE" and "WITH ALL FAULTS" basis. Neither Jefferson County nor any of its officials and employees makes any warranty of any kind for this information, express or implied, as to the accuracy, completeness, timeliness, or rights to use the information and expressly disclaims it is making any warranty, including but not limited to any warranties of merchantability or fitness for a particular purpose, nor shall the distribution of this information constitute any warranty. Any person or that relies on any information obtained from this system, does so at his or her own risk.

The information on this website is collected from various sources and will change over time without notice. Jefferson County and its officials and employees assume no responsibility or legal liability for the accuracy, completeness, reliability, timeliness, or usefulness of any information available on this website nor do they represent that the use of any information will not infringe privately owned rights. Jefferson County shall not be liable for any general, special, indirect, incidental or consequential damages, including but not limited to, lost revenues or list profits resulting from the use or misuse of the information.

Information on this site is not intended to constitute advice nor is it to be used as a substitute for specific advice from a licensed professional. You should not act (or refrain from acting) based upon information in this site without independently verifying the information and, as necessary, obtaining professional advice regarding your particular facts and circumstances. Any maps on this site are not intended as a surveyed product.

References to any specific commercial product, process, service by trade name, trademark, or manufacturer do not constitute or imply endorsement, recommendation, or favoring by Jefferson County and its officials and employees.

Map & Data Products

A number of older maps in PDF format are available in the PDF Map Database which can be accessed at the link to the left. Paper copies of the maps in the database, as well as other maps, may be purchased at the Assessor's Office. Please call ahead to ensure availability and for pricing information at 360-385-9105.

Copies of the Comprehensive Plan map may be purchased at the Jefferson County Department of Community Development for $20. Parcel and road data can be downloaded from the parcel map on the Internet Map Server page.