Parcel Viewer makes searching for King County parcel information easy. You can search by address, search by parcel number, or you can just zoom in on the map and click on a parcel. Once a parcel is selected, you will get direct links to the King County Assessor’s eReal Property report and the Districts and Development Conditions report.

King County Real Property. Parcels owned by King County for the multiple category types, and the following use codes: County Used, Financial Investment, Interim Holdings, Social Investment, Surplus. Includes assessed value and acquisition dates.

A parcel based layer providing an address based on spatial overlay where available, and a range of other property related attributes. To produce PARCEL_ADDRESS_AREA , PARCEL_AREA is spatially joined to ADDRESS_POINT to obtain address attributes, KROLLIDX_AREA to obtain a Kroll page reference, INTRMPAA_AREA to obtain potential annexation area attributes, and PLSS_AREA to obtain section-township-range. It is also joined on PIN to RPACCT_EXTR, PARCEL_EXTR, CONDOCOMPLEX_EXTR, and CONDOUNIT_EXTR to obtain property and assessment related attributes from the KC Assessor office. In many cases multiple addresses are spatially coincident with one parcel, and in those cases only one arbitrarily selected address is used to populate the address attribute information.

PLEASE NOTE: If choosing the Download option of "Spreadsheet" the field PIN is reformatted to a number - you will need to format it as a 10 character text string with leading zeros to join this data with data from King County.King County Assessor data has been summarized to the tax parcel identification number (PIN) and City of Seattle spatial overlay data has been assigned through geographic overlay processes. This data is updated periodically and is used to support the analytical and reporting functions of the City of Seattle long-range and policy planning office.The table includes attribute data from the King County Assessor as well as spatial overlay data for various City of Seattle reporting geographies. These geographic attributes are assigned as "majority rules" by land area in cases where multiple geographies span a single tax parcel.KCA tax parcels are created by King County for property tax assessment and collection and may not match development sites as defined by the City of Seattle (single buildings may span multiple tax parcels), may be stacked on top of each other to represent undivided interest and vertical parcels, or may be made up of several sites that are not contiguous. Every effort is made to accurately summarize key tax parcel attributes to a single PIN. Attributes include parcel centroid locations in latitude/longitude and Washington State Plane X,Y. To get polygon representation of the data please see King County's open data page for parcels and join this table through the PIN field. Please be aware that the King County Assessor site address is not a postal address and may not match other address sources for the same property such as postal, utility billing, and permitting.See the detailed data dictionary for more information.

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.

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

A comprehensive address file containing a point for every addressable site within King County. It is derived from the E 9-1-1 address layer which was created with the intention of assisting emergency responders locate 9-1-1 wireless callers more efficiently. Address points with the site type: ED (Dry Hydrant), EH (Hydrant), ET(Public Telephone) are not included. The layer is overlayed with the Washington County polygon layer and the King County parcel layer. The layer is joined with KCZipcode table to bring in the USPS Zip+4 data fields. The layer is joined with King County Assessor tables to identify primary addresses for each parcel.

A general-pupose basemap designed to support a wide variety of web-based mapping needs. Through its countywide display of highways and streets, waterbodies, incorporated cities, and parks, the map is suitable as a stand-alone, general-reference map and as a base for thematic data display using operational map overlays. The map was designed specifically for use in ArcGIS Server applications, with scale-dependent layers and label classes customized for the Google/Bing Web Mercator tiling scheme, but it is also useful as a "quick-and-dirty" basemap for other map projects (although as a cached map service the map content is unalterable).

Current King County Urban Growth Area Boundaries. The Comprehensive Plan designates an UGA which includes areas and densities sufficient to permit the urban growth that is projected to occur in the County for the succeeding 20-year period. Layer is created in reference to King County ordinances that established and amended the Urban Growth Areas. The main point of refference is the cadastral layer maintained by King County Department of the Assessor.

This web map displays data from the voter registration database as the percent of registered voters by census tract in King County, Washington. The data for this web map is compiled from King County Elections voter registration data for the years 2013-2019. The total number of registered voters is based on the geo-location of the voter's registered address at the time of the general election for each year. The eligible voting population, age 18 and over, is based on the estimated population increase from the US Census Bureau and the Washington Office of Financial Management and was calculated as a projected 6 percent population increase for the years 2010-2013, 7 percent population increase for the years 2010-2014, 9 percent population increase for the years 2010-2015, 11 percent population increase for the years 2010-2016 & 2017, 14 percent population increase for the years 2010-2018 and 17 percent population increase for the years 2010-2019. The total population 18 and over in 2010 was 1,517,747 in King County, Washington. The percentage of registered voters represents the number of people who are registered to vote as compared to the eligible voting population, age 18 and over. The voter registration data by census tract was grouped into six percentage range estimates: 50% or below, 51-60%, 61-70%, 71-80%, 81-90% and 91% or above with an overall 84 percent registration rate. In the map the lighter colors represent a relatively low percentage range of voter registration and the darker colors represent a relatively high percentage range of voter registration. PDF maps of these data can be viewed at King County Elections downloadable voter registration maps. The 2019 General Election Voter Turnout layer is voter turnout data by historical precinct boundaries for the corresponding year. The data is grouped into six percentage ranges: 0-30%, 31-40%, 41-50% 51-60%, 61-70%, and 71-100%. The lighter colors represent lower turnout and the darker colors represent higher turnout. The King County Demographics Layer is census data for language, income, poverty, race and ethnicity at the census tract level and is based on the 2010-2014 American Community Survey 5 year Average provided by the United States Census Bureau. Since the data is based on a survey, they are considered to be estimates and should be used with that understanding. The demographic data sets were developed and are maintained by King County Staff to support the King County Equity and Social Justice program. Other data for this map is located in the King County GIS Spatial Data Catalog, where data is managed by the King County GIS Center, a multi-department enterprise GIS in King County, Washington. King County has nearly 1.3 million registered voters and is the largest jurisdiction in the United States to conduct all elections by mail. In the map you can view the percent of registered voters by census tract, compare registration within political districts, compare registration and demographic data, verify your voter registration or register to vote through a link to the VoteWA, Washington State Online Voter Registration web page.

King County vector basemap with lidar derived hillshade overlaid.

A general-purpose basemap designed to support a wide variety of web-based mapping needs. Through its countywide display of highways and streets, waterbodies, incorporated cities, and parks, the vector tile of labels is suitable as a stand-alone, general-labeling and to be used for thematic data display over operational map overlays. The map was designed specifically for use in ArcGIS Online, with scale-dependent layers and label classes customized for the Google/Bing Web Mercator tiling scheme.

This data release contains the GIS data supporting U.S. Geological Survey Open-File Report (OFR) 2005-1252, "The Geologic Map of Seattle—A Progress Report," published in 2005 by Kathy Goetz Troost, Derek B. Booth, Aaron P. Wisher, and Scott A. Shimel (https://doi.org/10.3133/ofr20051252). The OFR was prepared for the 2005 Washington Hydrogeology Symposium and describes the status of geologic mapping for Seattle, Washington, at the time. The map is the result of field mapping and compilation of subsurface geologic data during the years 1999–2004 and was funded by the City of Seattle and the U.S. Geological Survey. Data from more than 36,000 exploration points, geotechnical borings, monitoring wells, excavations, and outcrops were used in making the map. The northern part of the 2005 OFR and the supporting GIS data were subsequently published as two geologic maps: Booth, D.B., Troost, K.G., and Shimel, S.A., 2005, Geologic map of northwestern Seattle (part of the Seattle North 7.5’ X 15’ Quadrangle), King County, Washington: U.S. Geological Survey Scientific Investigations Map 2903, https://doi.org/10.3133/sim2903. Booth, D.B., Troost, K.G., and Shimel, S.A., 2009, Geologic map of northeastern Seattle (part of the Seattle North 7.5' x 15' quadrangle), King County, Washington: U.S. Geological Survey Scientific Investigations Map 3065, https://doi.org/10.3133/sim3065. The southern part of the 2005 OFR and the supporting GIS data were not subsequently published for various reasons. With the original authors' permission, the GIS data used to create the map shown in OFR 2005-1252 are being released here to best meet modern open-data standards and to allow for use in future studies and mapping. The data included in this data release are only those components necessary to create the map shown in OFR 2005-1252. The following map features were not available and are not included in this data release: bedding point data, faults, anticlines, and contact lines. OFR_2005-1252.gdb is an Esri geodatabase containing the following feature classes: ofr_2005_1252_geology_poly (1,068 features); ofr_2005_1252_fill_poly (424 features); ofr_2005_1252_seattle_fault_zone_poly (1 feature); ofr_2005_1252_wastage_landslide_deposits_poly (188 features); ofr_2005_1252_beds_line (6 features); and ofr_2005_1252_scarp_line (351 features). Metadata records associated with each of these elements contain more detailed descriptions of their purposes, constituent entities, and attributes. A shapefile (non-geodatabase) version of the dataset is also included, although due to character limits, some field names and text cells in the attribute tables were truncated relative to the equivalent values in the geodatabase. The authors ask that users of the geologic map data cite both the open-file report and the GIS data release: Open-File Report: Troost, K.G., Booth, D.B., Wisher, A.P., and Shimel, S.A., 2005, The geologic map of Seattle—a progress report: U.S. Geological Survey Open-File Report 2005-1252, https://doi.org/10.3133/ofr20051252. GIS data: Troost, K.G., Booth, D.B., Wisher, A.P., and Shimel, S.A., 2024, GIS data for U.S. Geological Survey OFR 2005-1252, The geologic map of Seattle—a progress report: U.S. Geological Survey data release, https://doi.org/10.5066/P93L6SPS.

No-shooting areas are delineated portions of King County within which the discharge of firearms is prohibited or regulated by King County Code, Title 12, Chapter 12.68. Each no-shooting area on the map is labeled with its corresponding code section number and area descriptor.

A no-shooting area defined by Chapter 12.68 may lie within or extend into an incorporated city, which may have its own laws regulating the discharge of firearms within its boundaries.

In addition, although not depicted on the map, King County Code, Title 7, Chapter 7.12.630 regulates the shooting of guns in King County Parks, which is in general prohibited.

Map created by the King County GIS Center for the Metropolitan King County Council. Revised September 25, 2006.

Land properties, mostly parcels, where King County Parks and Recreation Division has ownership, management, easement or other interests.

KC streets derived from the cadastral database where lines represent the mid-point of the parcel right-of-way. Because it's parcel based, lines will not always align with the ortho photos. A feature in ST_ADDRESS should exist if there is a property with a valid address. A property such as an apartment or condo complex may have many streets within the property but only one street will be shown in ST_ADDRESS, containing the site address. Use TRANS_NETWORK when the lines should more closely match the ortho photos.

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

2020 census geography including tracts for the city of Seattle, King County, Washington. Excludes partial tracts with very small populations within the city limits along the southern border of the city.

This map shows participating parcels for current use taxation programs in King County, WA that offer an incentive (a property tax reduction) to landowner to voluntarily preserve open space, farmland or forestland on their property.

Points created along lines representing river banks are categorized as Critcal, High, Medium, or Low in potenial to provide shade based on the aspect of the point in relation to the centerline of the river.