2020 Population Trends - Wa

2024 Population Trends

WASHINGTON STATE

Office of Financial Management Forecasting and Research

September 2024

Acknowledgments

Washington State Office of Financial Management P.O. Box 43113 Olympia, WA 98504-3113 ofm. 360-902-0555 info@ofm.

To accommodate people with disabilities, this document is available in alternate formats by calling the Office of Financial Management (OFM) at 360-902-0599.

Table of Contents

State, county, and city populations ..................................................................................... 1 Statewide population trends .................................................................................................................. 1 Figure 1. State population change and components of change ....................................................... 1 Figure 2. Driver licenses surrendered to Washington, 1990?24......................................................... 2 Figure 3. Births, deaths, and natural change ..................................................................................... 3 Figure 4. Age-specific fertility rates..................................................................................................... 4 Figure 5. Yearly change in housing units ............................................................................................ 5 Figure 6. New housing units by type, 2024 ......................................................................................... 5 Figure 7. Percentage change in population by region ....................................................................... 7 Figure 8. Distribution of population change by county ..................................................................... 8

Appendix A: Data tables...................................................................................................... 9 Table 1. Population and components of change by decade 1920?70, single year 1980 to present.................................................................................................................. 9 Table 2. County population and components of population change: April 1, 2020, to April 1, 2024.............................................................................................................. 10 Table 3. County population and components of population change: April 1, 2010, to April 1, 2020.............................................................................................................. 11 Table 4. Populations of cities, towns, and counties: April 1, 2020, to April 1, 2024......................... 12 Table 5. Federal corrections and OFM adjustments to Census 2020 Public Law 94-171 counts .................................................................................................................. 20 Table 6. Rank of cities and towns by April 1, 2020, and April 1, 2023, population size ................... 22 Table 7. Housing units by structure type for cities, towns, and counties: April 1, 2020, and 2024 ....................................................................................................................... 27 Table 8. Annexations, incorporations, and other municipal boundary changes approved by OFM ................................................................................................................ 35 Table 9. Intercensal estimates of population by county: April 1, 2010, to April 1, 2020.................. 41

Appendix B: Supplemental information...............................................................................42 Washington statutes related to the population estimates program................................................... 42 Population estimates development ..................................................................................................... 42 Small Area Estimates Program.............................................................................................................. 43 Small Area Demographic Estimates...................................................................................................... 44 Changes to Race and Ethnicity Data due to Statistical Policy Directive 15......................................... 44

Population data products ..................................................................................................................... 45 Washington State Data Center and Business and Industry Data Center............................................. 46 Acknowledgements ............................................................................................................................... 46

State, county, and city populations

The Office of Financial Management (OFM) develops population estimates each year as of April 1 for release in July. OFM has prepared these estimates every year for more than five decades for use by many state laws that allocate funds, determine program eligibility, and establish county participation under the Growth Management Act, among many other uses.

The state will use 2024 population estimates beginning January 2025 (RCW 36.13.100, 43.62.020, 43.62.030, 66.08.200, and 66.08.210).

Statewide population trends

The April 1, 2024, population estimate is 8,035,700. The population increased by 329,390 people (from births, deaths, and net migration) from the 2020 census, OFM-adjusted base. The annual population growth rate is about the same as last year at 1.1%.

Figure 1. State population change and components of change

Migration

Migration continues to be the primary driver behind population growth. From 2023 to 2024, net migration (people moving in minus people moving out) to Washington totaled 69,100, which is down 3,300 people compared to 2023's net migration number. Net migration accounted for 82% of the state's population growth, with natural change (births minus deaths) responsible for the other 18%.

Washington State Office of Financial Management

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