The Public Land Survey System (PLSS) Grid - Line is linework derived from the master coverage of the PLSS maintained by the Assessor's Office. This dataset only contains linework and attribute information for townships, ranges, sections, quarter sections and quarter quarter sections and government lot lines. It is compiled from recorded surveys and plats, coordinates and linework supplied by private surveyors, Snohomish County Public Works Survey, cities, Washington State Department Of Natural Resources (DNR) and the United States Department of the Interior - Bureau of Land Management (BLM). Standard BLM methods are used to construct the aliquot grid. In coastal areas, the aliquot grid may not apply for many of the coastal sections, it has been constructed for the purposes of land title and defining map extents for automated routines.

Geospatial data about Snohomish County, WA Sub-basins. Export to CAD, GIS, PDF, CSV and access via API.

The Improvements Record file is a record of structure improvements made to a property, including initial construction, renovations, additions, and repairs. This file contains the parcel number, Use Code description, improvement type, year built, and other features and dates related to the property's improvements.

Geospatial data about Snohomish County, WA Zip Codes. Export to CAD, GIS, PDF, CSV and access via API.

The Public Land Survey System (PLSS) Grid - Polygon are polygons derived from the master coverage of the PLSS maintained by the Assessor's Office. This dataset only contains polygon information. It contains polygons mostly at a quarter quarter section resolution except in certain non-urban areas where a lower full section resolution or hybrid is used. It is compiled from recorded surveys and plats, coordinates and linework supplied by private surveyors, Snohomish County Public Works Survey, cities, Washington State Department Of Natural Resources (DNR) and the United States Department of the Interior - Bureau of Land Management (BLM). Standard BLM methods are used to construct the aliquot grid. In coastal areas, the aliquot grid may not apply for many of the coastal sections, it has been constructed for the purposes of land title and defining map extents for automated routines.

Data DictionaryThe Allparcels data set is a thematic layer depicting past, present and future tax year real property parcel boundaries within Snohomish County, Washington based on the legal descriptions contained in the assessment roll. Parcels in this data set are defined as real property entities that can be valued for the purpose of collecting taxes. Parcels include, but are not limited to land, buildings on leased land, mobile homes and condominium units. Parcels may overlap. Parcels such as condominium units and mobile homes that may occupy a single polygon are represented as non-planar features (regions) of the same geographic extent. The Parcels data set does not depict legal ownership boundaries nor does it represent legal building lots. Snohomish County does not maintain parcels for the complete geographic coverage of the county. There is no parcel fabric in much of the eastern mountainous area. This data set is not designed to be used in connection with tabular attribute files. Its sole purpose is for historical tracking of changes in the parcel geometry. For current parcel geometry and tabular attributes, see the Parcels data set.

Geospatial data about Snohomish County, WA Major Roads. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Snohomish County, WA Streams. Export to CAD, GIS, PDF, CSV and access via API.

This data set is a compliation of fire districts and regional fire authorities in Snohomish County. The boundaries were compiled from fire_annex dataset that tracks each annexation. Spatial registration conforms to features in the Snohomish County parcel data set.

Geospatial data about Snohomish County, WA Schools. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Snohomish County, WA Council Districts. Export to CAD, GIS, PDF, CSV and access via API.

Snohomish County Land Cover Metrics including City Boundaries

Geospatial data about Snohomish County, WA Voter Precinct Portions. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Snohomish County, WA Rivers, Lakes, and Marine Waters. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Snohomish County, WA Building Addresses. Export to CAD, GIS, PDF, CSV and access via API.

These data represent the spatial distribution of the Snohomish County Shoreline Management Program - Shoreline Environmental Designations as adopted by Snohomish County Council Amended Ordinance 19-020 on July 3, 2019. These designations and the accompanying Shoreline Management Program were approved by the Washington State Department of Ecology and became effective October 14, 2019.The Snohomish County Planning and Development Services (PDS) Department updated the footprint of this spatial dataset in October 2022. The footprint was updated based on a recent version (3/16/2022) of the FEMA DFIRM flood hazard map for Snohomish County. No updates were made to shoreline designations, other than to expand, shrink, or maintain the 2019 mapped designations based on updated flood hazard area polygons.

Geospatial data about Snohomish County, WA State Legislature. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Snohomish County, WA Fire Protection Districts. Export to CAD, GIS, PDF, CSV and access via API.

The Master Record file contains detailed information about each property’s assessment characteristics, including Property Identification Number (PIN), jurisdiction, neighborhood, Situs address, legal description, valuation, and tax information.

Geospatial data about Snohomish County, WA Hospital Commissioner Districts. Export to CAD, GIS, PDF, CSV and access via API.