-
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... -
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... -
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... -
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... -
November 2025 General Election - Election Night Precinct Results
Election Night Precinct Results for the November 4, 2025 General & Special Election. -
Lead Content of Consumer Products tested in King County, Washington
Public Health – Seattle & King County and the Hazardous Waste Management Program are providing data describing the lead content of consumer products. This data is collected... -
November 2025 General Election - Final Precinct Results
Final precinct level results for the November 2025 general election. -
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... -
Water Quality
Prior to downloading data, please download the README file. This dataset contains water quality samples collected from Puget Sound, lakes, and streams in the region which can be... -
November 2025 General Election - Mid Election Precinct Results
Mid election precinct level results for the November 4, 2025 General & Special Election. -
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... -
Freshwater CTD data
Profiles of temperature, conductivity, salinity, dissolved oxygen, chlorophyll fluorescence, beam transmission, and surface and subsurface PAR collected monthly to twice monthly... -
Personal Property Data
Personal property typically includes items used by a company to conduct business. Generally, personal property does not include property which is attached to a building or to... -
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... -
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... -
King County Voter Turnout by Precinct
This map displays the percentage of voter turnout by precinct for the general elections 2010-2019 in King County, Washington. The data for this map was complied from the King...
Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.