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CDC Social Vulnerability Index (CDCSVI)
The Centers for Disease Control Social Vulnerability Index shows which communities are especially at risk during public health emergencies because of factors like socioeconomic... -
Superior Court Clerk - Records Access Portal
The KC-Clerk's public portal provides King County Superior Court case number and participant name search functionality and access to case information. Accessible cases include... -
King County Parcel Viewer
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... -
Adult Jail Booking Dec 1, 2024 to Nov 30, 2025 as of Dec 2, 2025
The Jail Bookings Open Data dataset is provided by the King County Department of Adult and Juvenile Detention. The dataset contains adult jail bookings which have occurred... -
November 2025 General Election - Final Precinct Results
Final precinct level results for the November 2025 general election. -
Voter Registration by Census Tract
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... -
Food Establishment Inspection Data
Health Department inspection results for food service establishments in King County, 2006 to the present. This data is organized by Business / Inspection Date / Violation. Each... -
Marine Phytoplankton Grouped by Sample and Specific Functional Group
This dataset contains phytoplankton samples collected from Puget Sound and analyzed using a particle imaging analyzer (FlowCAM®). For more information see the King County marine... -
King County Metro - Developer Resources
General Transit Feed Specification (GTFS) is an open format spec used by hundreds of transit agencies to power transit directions in a variety of Web and transit apps, including... -
King County Official Records Search
Most documents recorded on or after August 1, 1991 are available online. Documents that were recorded prior to August 1, 1991 are on microfilm and are only available from the... -
Freshwater CTD data
Profiles of temperature, conductivity, salinity, dissolved oxygen, chlorophyll fluorescence, beam transmission, and surface and subsurface PAR collected monthly to twice monthly... -
Routine Marine Sediment Chemistry
Prior to downloading data, please download the README file. This dataset contains chemistry results from marine sediment sample collected from offshore (subtidal) and beaches... -
Marine Benthic Abundance Data
This dataset contains Puget Sound benthic abundance data. Before accessing data please download the README file. King County monitors the community of animals that live in and... -
2008 Primary - Election Results by precinct (complete eCanvass dataset)
August 2008 primary election; final/official results by precinct. -
2014 General - Election Results by precinct (complete eCanvass dataset)
November 2014 general election; final/official results by precinct. -
Washington State 2020 CORONA Survey: King County
The Washington State Department of Health conducted the Community Recovery-Oriented Needs Assessment (CORONA Survey) in August & September 2020. The survey focused on how...
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