Annual Population & Housing Estimates

Annual population and housing estimates for Thurston County areas are developed shortly after the release of annual countywide estimates by the state’s Office of Financial Management by June 30th. The following information is available:

  • Total Population
  • Population by housing type (single-family, multifamily, and manufactured homes)
  • Population in group quarters (such as student dorms, correctional facilities, and nursing facilities).
  • Housing (dwelling unit) estimates by housing type (single-family, multifamily, and manufactured homes).

These datasets are calibrated to Census 2010 datasets at the city level for population, and at the dwelling unit level for Census block groups.  Housing starts are compiled from local planning departments and are updated annually.

Estimates are calibrated to the Office of Financial Management’s April 1 Official Population Estimates for cities and counties, available at www.ofm.wa.gov.

Contact Us


  1. For more information contact:

    Michael Ambrogi
    Senior GIS Analyst
    ambrogim@trpc.org

    Thurston Regional Planning Council
    2424 Heritage Court SW
    Suite A
    Olympia, WA 98502
    Ph: 360-956-7575