Parcels of Thurston County, Washington. Thurston County's data set for use in determining issues related to property based on tabular information stored in the ASCEND and SIGMA databases maintained by the Assessor's Department.Data set is used to provide a seamless map of property ownership in Thurston County.

Parcels of Thurston County, Washington. Thurston County's data set for use in determining issues related to property ownership based on tabular information stored in the ASCEND and SIGMA databases maintained by the Thurston County Assessor's Department.

The fields SEWER_TYPE and WATER_SRC come from a variety of different sources and jurisdictions which the Assessor’s Office has no control of or the ability to audit. The Assessor’s Office appraisers are not experts in determining the exact type of water/sewer system available to a site, and do not make any official determination. These legacy fields are not updated. Local utility providers should be contacted for better information for specific parcels.

This data shows current (2010) park, public preserves, natural areas, and undeveloped lands for Thurston County, local cities, state, and federal ownership. The data also includes information about park amenities, size, address and owner information.LAST UPDATED: 27 SEPT 2017 by KLB

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Face refers to the areal (polygon) topological primitives that make up MTDB. A face is bounded by one or more edges; its boundary includes only the edges that separate it from other faces, not any interior edges contained within the area of the face. The Topological Faces Shapefile contains the attributes of each topological primitive face. Each face has a unique topological face identifier (TFID) value. Each face in the shapefile includes the key geographic area codes for all geographic areas for which the Census Bureau tabulates data for both the 2020 Census and the annual estimates and surveys. The geometries of each of these geographic areas can then be built by dissolving the face geometries on the appropriate key geographic area codes in the Topological Faces Shapefile.

This layer is used as a representation of the land area associated with Thurston County. Thurston County uses this in map representations and analysis. This layer should not be used in replace of any legal determination or information as the boundary may change due to outside factors.

Thurston County, WA, US Post Office Box assigned zip codes. The purpose of this data is as a general reference only and actual mailing zip codes should be obtained from the US Postal Service. This layer was originally created using US Post Office Data. These points are associated with the US Post Office Box locations that house a unique Zip Code.This layer should be used in conjunction with the Zip Codes layer which is used to show zip code area boundaries associated with addressing and Thurston County Assessor’s Parcels. For example in smaller jurisdictions, like Bucoda, that rely on a post office box rather than rural delivery, the zip code point will reflect the unique zip code while the surrounding area will reflect the greater rural zip code boundaries and not the localized PO Box zip code.

The main purpose of this data is used as part of road planning, road maintenance and analysis of county owned roads. This is accomplished by linking it to data from the County Road Information System. All other jurisdictional roads are kept up to date as we are notified of their change of status. This layer is also used for mapping the transportation infrastructure; Intercity Transit routes, Snow removal routes, School District transportation planning, and Fire District mapping, among others. LAST UPDATED - 9 Nov 2017 BY KLB.

This data shows all known mines in Thurston County. The data was created on 09/15/1999, and defines mine type, operator, and permit designation, if applicable. The designated mineral resource spatial and attribute data were updated in 10/15/2003 (abc). Designated mines info was provided by Jennifer Hayes, of the Thurston County Planning Department.

Due to an ESRI bug download is not working for this data, but you can download it here. This data was created, by David Smith & Associated under contract with Thurston County, to provide the county with a means of surface modeling, water shed delineation and other terrain issues. It was developed as part of the county's aerial program. It is comprised of black and white photography from a flight flown in June of 1996. The contours are relevant as of June 1996. Two Foot Contours of Thurston County, Washington. The following accuracy information was provided by David Smith and Associates. "All accuracies are in relation to the computed aero triangulation control and intended to be as follows:Elevation values:Vertical_Coordinate_System_Definition:Vertical_Datum_Name: NGVD 1929Altitude_System_Definition:Altitude_Resolution: 1.000000Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinatesSource_Scale_Denominator: 600Type_of_Source_Media: Stereoscopic 1996 6ft pixel aerial photos.

Cities in Thurston County. This layer is generated from Annexations layer by automated process. Layer Updated, due to annexations, on October 31, 2017

This is the public land survey grid that shows sections for Thurston County. This data was originally acquired from Washington State Department of Natural Resources in, or around, the 1990's. No more specific time frame is available. This data was originally stored by the county in coverage format and was imported into SDE in 2011. No modification or changes have been made during this time however this layer is currently being reviewed by the Thurston County Surveyor. It may be changed once that review is complete. Use this layer with caution as it may or may not be spatially accurate.

This layer is used as a general reference of boundaries associated with State and National Forest lands, Military installations, and Tribal lands in Thurston, and surrounding, counties. Every effort is made to update the boundaries as error's or changes occur however all changes are verified with a State or Federal entity before implementation. Military installations – All land associated with Joint Base Lewis McChord. Other properties owned by the Department of Defense, or similar entities, are not included in this layer.
State Forest Lands – All trust lands, managed by Washington State Department of Natural Resources, associated with Capitol State Forest. These encompass the approximately 100,000 acres of land in both Thurston and Grays Harbor counties. Other properties, owned by DNR, in Thurston County are not included in this layer. For Parks data (City, County, State, and Federal) and information see the Thurston County Parks layer.
National Forest Lands – National Forest lands, managed by the US Forest Service. Reservations – All lands associated with the Tribal Reservations of the Nisqually or Chehalis Tribes. This layer is updated using information from the US Federal Government as the authoritative source. This layer does not include lands in trust or lands falling outside the US recognized boundary.

The purpose of this data is to show Thurston County's Group A, Group B and Group B Exempt community water system boundaries.Group A Public Water System is classified as a community system with 15 or more connections or serves greater than 25 or more people per day for 60 days or more per year. Group B Public Water System is classified as a community system with 3 to 14 connections and less than 25 people per day or serves 25 or more people per day during fewer than 60 days per year. Group B Exempt Public Water Systems are classified as community systems that were formerly Group B, by State DOH, but were downgraded to Exempt Systems due to their size/number of connections. These systems are no longer tracked by the State but are still tracked, under their previous ids/tags, by Thurston County. This change occurred in 2016/2017.

The purpose of this data is to show railroads, both abandoned, railbank and railroads (not rails-to-trails) in Thurston County, WA. LAST EDITED: 9 AUG 2017 BY KLB.

When the water and sewer systems were built, Thurston County worked with local property owners to identify which areas would be served by the systems. A payment-for-access boundary was drawn, and all properties within the boundaries were assessed to pay for construction of pipelines. This layer combines the formerly separate individual layers into one. Done on 30 JAN 2015 by KLB.

Thurston County Basins and Watersheds. The watershed shapefile is created from the allbas coverage (basins) and shares the same metadata. This data is approved by the WA State Department of Ecology. The layer should be used as a general reference for basin delineation and not as an absolute.

Dataset is a polygonal representation of structures within Thurston County. This data was derived from the 2000 aerial photography. Some of the buildings and structures may be distorted due to canopy interference. The data was derived from the AutoCAD entity layers. Each building type had an individual entity layer in AutoCAD, they were combined to create one GIS layer. This data layer was created by Smith and Associates from the 2000 imagery and delivered to GeoData around 2003. This data has not been updated since 2000 so changes to existing structures or additions since then will not be reflected in the data.

Noxious Weed Locations in Thurston County. This data is edited and maintained by the Noxious Weeds Department. Locations represent presence of Noxious Weed, both listed and unlisted species. Size, area or location may not be exact and should be used as a representation only. More information on types of controlled, listed and unlisted noxious weeds, can be found on the Noxious Weed Control website http://www.co.thurston.wa.us/tcweeds/. Weeds that fall into an eradicated status are removed from this layer at the close of each calendar year. They are moved into the NoxiousWeedEradicatedSites dataset. Knotweed located in containment areas, areas in unincorporated Thurston County outside City Limits, are also shown in the Knotweed Containment Layer. This is used to inform the Amanda Permit database about knotweed on properties that must be specially contained and treated during any ground disturbing activities.Last Updated - February 9, 2018

Thurston County school attendance district boundaries. This layer is used to denote the attendance areas for elementary, middle and high schools in Thurston County. Data is updated with information provided by the school districts (Tumwater, North Thurston, etc) or their representative (Olympia/TRPC). Edits are made to be parcel specific where possible however due to parcel change over time they may not be coincident. This layer is used to inform the Thurston GeoData Center Online Parcel Information Page (nightly combo table process). Updated June 1, 2017 by kah

Glacial Heritage Discovery Trail for Prairie Appreciation Day. Glacial Heritage Discovery Trail for Prairie Appreciation Day. Meant to go with this story map: https://fws.maps.arcgis.com/apps/Shortlist/index.html?appid=739521362e694c22b399b6228f713348Get to know the South Sound Prairies. To learn more about other Prairie Species go here:https://fws.maps.arcgis.com/apps/MapSeries/index.html?appid=83b64cb7c194404fa5f0f024a5eab328To learn more about the Washington Office of the United Stated Fish and Wildlife Service (USFWS), please go to here: https://www.fws.gov/wafwo/index.cfm

Thurston County Hydro/Stream data originated as coverage file representation of the Thurston County hydro network. It included all waterbodies: rivers, lakes, ponds, inlets and streams. The features were digitized by the Thurston GeoData Center from the Thurston Comap, Assessor's Data dated 1990, and Tiger Files using rubber sheeting and aerial digitizing. Attribute information, including DNR Classifications and Naming, originated from Washington State DNR and Department of Ecology. In 2002-2003 the data was updated along Marine Shorelines using updated Aerial Photography. In 2011 the hydro coverage file were converted into feature class files during which process stream and river data was separated from other waterbodies; large river areas, lakes, ponds, and marine areas. The datasets were renamed to Streams and Waterbodies respectively. In 2014 some minor adjustments were made to both layers in the Lake Lawrence area as the result of LiDAR derived hydro enforced DEM data. Other changes that have been made to the data include Stream Name/Attribute information. These changes are made when authoritative information is received from USGS GNIS in regards the naming or renaming of streams. Future plans are in place for revisions to the data to more accurately reflect waterbody locations.Last Updated - February 28, 2017