King County GIS data is at: https://gis-kingcounty.opendata.arcgis.com/ (new KCGIS Open Data site) OR http://www5.kingcounty.gov/gisdataportal/ (legacy KCGIS data FTP download portal)

The King County GIS Center manages the King County Geographic Information System (KCGIS), King County’s cooperative, multi-department, enterprise GIS.

Link to King County GIS Center Open Data site. Provides access to browse and download from hundreds of enterprise data sets. Includes links to other data sources including legacy FTP Download Portal

Countywide datasets are available as zipped Esri geodatabases. Sets of the 5-foot-interval contours at township-level extents are available as zipped shapefiles in addition to geodatabases. (None of the data are available in GeoJSON or KML format.) Note that the zipped files are exceptionally large.All files are compressed in the open-source 7-Zip format (external link to 7-zip.org). Other utilities which can extract zipped files will work in most cases, but some of these data files might extract with 7-Zip only.

The Leafline Trails Network map displays the routes of regionally significant off-road, multi-purpose trails within King County. Numerous trail-user amenities are also shown on the map, such as public parking at trailheads and along the trail routes, nearby transit facilities, restrooms, and public parks. Highways, arterial streets, cities, and major landmarks are identified for easy location of trails and for general reference.The reverse side of the map includes a colorful description in text and photographs of the special characteristics of many of the primary regional trails. Additional text about the Leafline Trails Network is provided to enhance users' access to and enjoyment of the wealth of recreational opportunities provided by the Leafline Regional Trails in King County.

The map was developed, produced, and published by the King County Parks and Recreation Division with cartography and design by Parks and Recreation Division GIS and King County GIS Center Spatial Services.Revised May 2021.

Location of trails in King County. Note that city trails and private trails may not be complete.

This shapefile contains tax rate area (TRA) boundaries in Kings County for the specified assessment roll year. Boundary alignment is based on the 2016 county parcel map. A tax rate area (TRA) is a geographic area within the jurisdiction of a unique combination of cities, schools, and revenue districts that utilize the regular city or county assessment roll, per Government Code 54900. Each TRA is assigned a six-digit numeric identifier, referred to as a TRA number. TRA = tax rate area number

Census 2020 blocks in King County with selected P.L. 94-171 redistricting data.

King County's standard, general-purpose, web basemap. This map is part of the King County ArcGIS for Server and ArcGIS Online basemap collection.

This page displays information related to the King County Assessor current and future GIS projects and initiatives.

This is a site for sharing public King County GIS data layers via the ArcGIS Online Open Data platform.King County GIS Open Data teamMike Leathers, GIS Data CoordinatorCheryl WilderMary UllrichPatrick JankanishMichael Jenkins

Table from the American Community Survey (ACS) 5-year series for King County and City of Seattle median values for a variety of topics including age, gross rent, monthly owner costs, family and nonfamily incomes, earnings. Includes the margin of error for the values.

Publication Date: April 2025. This polygon layer is updated annually.

This layer contains 2024 parcel data only for NY State counties which gave NYS ITs Geospatatial Services permission to share this data with the public. Work to obtain parcel data from additional counties, as well as permission to share the data, is ongoing. To date, 36 counties have provided the Geospatial Services permission to share their parcel data with the public. Parcel data for counties which do not allow the Geospatial Services to redistribute their data must be obtained directly from those counties. Geospatial Services' goal is to eventually include parcel data for all counties in New York State.

Parcel geometry was incorporated as received from County Real Property Departments. No attempt was made to edge-match parcels along adjacent counties. County attribute values were populated using 2024 Assessment Roll tabular data Geospatial Services obtained from the NYS Department of Tax and Finance’s Office of Real Property Tax Services (ORPTS). Tabular assessment data was joined to the county provided parcel geometry using the SWIS & SBL or SWIS & PRINT KEY unique identifier for each parcel.

Detailed information about assessment attributes can be found in the ORPTS Assessor’s Manuals available here: https://www.tax.ny.gov/research/property/assess/manuals/assersmanual.htm. New York City data comes from NYC MapPluto which can be found here: https://www1.nyc.gov/site/planning/data-maps/open-data/dwn-pluto-mappluto.page.

This layer displays when zoomed in below 1:37,051-scale.

This map service is available to the public.

Geometry accuracy varies by contributing county.

Thanks to the following counties that specifically authorized Geospatial Services to share their GIS tax parcel data with the public: Albany, Cayuga, Chautauqua, Cortland, Erie, Genesee, Greene, Hamilton, Lewis, Livingston, Montgomery, New York City (Bronx, Kings, New York, Queens, Richmond), Oneida, Onondaga, Ontario, Orange, Oswego, Otsego, Putnam, Rensselaer, Rockland, Schuyler, Steuben, St Lawrence, Suffolk, Sullivan, Tioga, Tompkins, Ulster, Warren, Wayne, and Westchester.

The State of New York, acting through the New York State Office of Information Technology Services, makes no representations or warranties, express or implied, with respect to the use of or reliance on the Data provided. The User accepts the Data provided “as is” with no guarantees that it is error free, complete, accurate, current or fit for any particular purpose and assumes all risks associated with its use. The State disclaims any responsibility or legal liability to Users for damages of any kind, relating to the providing of the Data or the use of it. Users should be aware that temporal changes may have occurred since this Data was created.

This feature class consists of points describing well locations and is an excerpt from King County GIS data for Group A and Group B community water supply wells downloaded from the King County GIS Data Portal on July 15, 2016, within and in the immediate vicinity of the City of Bellevue. Group B wells were cross-referenced with state Department of Health Office of Drinking Water Sentry Internet data which provides summary information pertaining to public Water Systems. AESI removed one water system that was listed as inactive (water system ID 13107). This feature class is part of Appendix C, GIS Files and Documentation, of the Infiltration Infeasibility Analysis and Technical Report, prepared for the City of Bellevue Utilities Department by Associated Earth Sciences, Inc, April 4, 2016.

King County vector basemap with lidar derived hillshade overlaid.

This table is part of the King County State of GIS Software Usage dashboard.This table is a filtered view of ESRI Usage - 2021 to Present. The table has been filtered to only show the most recent quarter's data for GIS Software usage by department. Usage data collected from ArcGIS Online login information, the OpenLM app, and King County's Active Directory instance.This table is updated once per quarter, in January, April, July, and October. Use the 🔒GIS License Manager (King County login and VPN required) for more detailed and more frequently updated data.

For more information about this layer please see the GIS Data Catalog.Authoritative Points-of-Interest layer for King County. Contains over 45 different domain classes showing locations and names for a range of different features. Some classes of features are extensively documented (such as school sites and hospitals) while other classes represent a selected set of all the features of that type (such as hotels and shopping centers). Each feature is represented by a single point describing the centroid of the feature. Multiple points for a single XY coordinate may exist if more than one domain is represented. In other words, a single feature may represent a hospital, but that same point may be represented by another feature (i.e., record) described as a Public Health Clinic. Signficant reviews/updates across a specific domain are described in the Lineage of COMMON_INTEREST_POINT and any domain-specific datasets; other corrections and adhoc updates are not detailed in the Lineage.

Zip Code Boundaries for King, Pierce, Snohomish, Kitsap