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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... -
Adult Jail Booking Mar 1, 2025 to Feb 28, 2026 as of Mar 3, 2026
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... -
February 2026 Special Election Night Results
Election night precinct level results for the February 10 2026 Special Election. -
KCSO Offense Reports: 2020 to Present
The King County Sheriff’s Office (KCSO) is providing offense report data captured in it's Records Management System (RMS) from 2020 to present. KCSO replaced its RMS in late... -
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... -
February 2026 Special Election Final Precinct Results
Final precinct level results for the February 2026 Special Election. -
February 2026 Special Mid-Election Precinct Level Results
Mid-election precinct level results for the February 10, 2026 Special Election -
King County GIS - Open Data site and FTP Download portal
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... -
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... -
King County Streams Water Quality Index
This dataset contains WQI scores (parameter-specific, monthly, and annual scores) for water quality monitoirng data collected through the County’s ambient stream water quality... -
Lake Washington water surface elevation
Daily mean elevation derived from hourly average data obtained from Army Corps of Engineers dataquery 2.0 -
6PPD-Quinone (6PPDQ) Treatment by High-Performance Bioretention Soil Mix
This data set consists of all data from the following King County publication: Chelsea Mitchell. 2025. Testing Removal of 6PPDQ and Coho Salmon Lethality by High-performance... -
November 2025 General Election - Final Precinct Results
Final precinct level results for the November 2025 general election. -
2010 General - Election Results by precinct (complete eCanvass dataset)
November 2010 election; final/official results by precinct. -
February 2020 Election Final Precinct Level Results
Final precinct level results for the February 11, 2020 special 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... -
Fleet Parts Customer Catalog
Parts and supplies available for ordering through King County Fleet Services -
2016 Special February - Election Night Results Abstract by Precinct
February 2016 special election; election night results report by precinct.
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