The population count of Washington was 7,294,336 in 2018.

Population

Population Change

Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes:

1. ODN datasets and APIs are subject to change and may differ in format from the original source data in order to provide a user-friendly experience on this site.

2. To build your own apps using this data, see the ODN Dataset and API links.

3. If you use this derived data in an app, we ask that you provide a link somewhere in your applications to the Open Data Network with a citation that states: "Data for this application was provided by the Open Data Network" where "Open Data Network" links to http://opendatanetwork.com. Where an application has a region specific module, we ask that you add an additional line that states: "Data about REGIONX was provided by the Open Data Network." where REGIONX is an HREF with a name for a geographical region like "Seattle, WA" and the link points to this page URL, e.g. http://opendatanetwork.com/region/1600000US5363000/Seattle_WA

Demographics and Population Datasets Involving Washington

  • API

    WAOFM - Census - Population and Housing, 2000 and 2010

    data.wa.gov | Last Updated 2021-09-01T17:20:31.000Z

    Population and housing information extracted from decennial census Public Law 94-171 redistricting summary files for Washington state for years 2000 and 2010.

  • API

    NYCHA Resident Data Book Summary

    data.cityofnewyork.us | Last Updated 2020-02-08T00:56:30.000Z

    Contains resident demographic data at a summary level as of January 1, 2019. The Resident Data Book is compiled to serve as an information source for queries involving resident demographic as well as a source of data for internal analysis. Statistics are compiled via HUD mandated annual income reviews involving NYCHA Staff and residents. Data is then aggregated and compiled by development. Each record pertains to a single public housing development.

  • API

    WAOFM - Census - Population Density by County by Decade, 1900 to 2020

    data.wa.gov | Last Updated 2023-07-06T16:48:57.000Z

    Washington state population density by county by decade 1900 to 2020.

  • API

    WAOFM - Congressional Districts - Table 1: Census 2010 Population and Housing

    data.wa.gov | Last Updated 2021-09-01T17:19:01.000Z

    Census 2010 population and housing for 2012 congressional districts based on Washington State Redistricting Commission plan C-JOINTSUB_2-1 as amended by Engrossed House Concurrent Resolution 4409.

  • API

    WA RCO SCORP 2013 Field Definitions

    data.wa.gov | Last Updated 2013-10-31T22:06:45.000Z

    This dataset is a survey of outdoor recreation demand which includes responses from 3,114 residents of Washington state who were interviewed by phone between August 27 and October 26, 2012. The telephone survey was conducted using random digit dialing. To meet the regional planning requirements of the project, the sample was stratified by the 10 planning regions in Washington (see the 2013 SCORP Plan, Appendix A for survey methodology and map). The consultant obtained a minimum of 300 completed interviews in each region. Within each region, the results were weighted by demographic characteristics so that the sample was representative of residents of that region. For statewide results, each region was weighted to be in proper proportion to the state population as a whole. Study findings are representative at the statewide level as well as by planning region. Any manipulation or analysis of the data should take this sampling approach and weighting into account.

  • API

    WAOFM - Legislative Districts - Table 1: Census 2010 Population and Housing

    data.wa.gov | Last Updated 2021-09-01T17:19:16.000Z

    Census 2010 population and housing for legislative districts based on Washington State Redistricting Commission plan L-JOINTSUB_3-2 as amended by Engrossed House Concurrent Resolution 4409.

  • API

    Demographic - Population Percent by Race Ethnicity by County WA

    internal.open.piercecountywa.gov | Last Updated 2024-07-02T18:29:50.000Z

    Percentage of each race/ethnicity in an area. County and State values are from ACS 1-year data (DP05).

  • API

    Demographic Birth and Death by County WA

    internal.open.piercecountywa.gov | Last Updated 2024-06-14T22:59:16.000Z

    Data from the Department of Health, who collects information on pregnancy and delivery in Washington State from birth certificates, and information on deaths in Washington State from death certificates. Occurrence of birth in each residence county represents all births to residents of each county regardless of where the birth occurred. Occurrence of death in each residence county represents all deaths to residents of each county regardless of where the death occurred.

  • API

    Driver Licenses and ID Cards Transferred to Washington

    data.wa.gov | Last Updated 2024-09-23T16:56:03.000Z

    This data set shows monthly counts of new Washington State driver licenses and identification cards (ID) where customers presented licenses or IDs from other states or countries. The data is organized by Washington counties where the customers live. It shows where the previous driver licenses or ID cards were issued.

  • API

    Demographic - Net Migration by County WA

    internal.open.piercecountywa.gov | Last Updated 2024-06-14T23:11:27.000Z

    Estimate of net migrations for area from Washington Data and Research, Office of Financial Management, Washington(April 1, 2018 press release and data products).