The Washington Mental Health Workforce
Washington has 53,146 active mental-health providers registered at practice addresses in the state, or 664.2 per 100,000 residents. That ranks 7 of 51 nationally, against a US average of 433.5.
53,146
active providers
664.2
per 100,000 residents
#7
of 51 jurisdictions by density
Key findings
- Washington registers 664.2 active providers per 100,000 residents. That ranks 7 of 51 jurisdictions, above the national 433.5. #
- Spokane County has the state's highest registered density (903.1 per 100k); 1 of Washington's 39 counties have fewer than 3 registered providers. #
- Counselors are the largest group at 66.2% of Washington's registered workforce (US: 43.9%). #
- 3,094 providers with a Washington practice address first entered the NPI registry in 2025, versus 3,301 in 2019. These are registry entries, not licenses issued. #
- 73% of Washington providers share a registered practice location with six or more in-scope providers. #
Providers per 100,000 by county
Providers are allocated to counties from their practice ZIP code. For 1 county with under 3 allocated providers or under 1,000 residents, we show the count but no per-100k rate, because numbers that small don't make a reliable rate. We also withhold the rate for 3 counties (Grant, Stevens and Asotin), where a single practice address holds at least half the providers registered there — typically a regional employer that enrols its whole clinical staff at one headquarters, which inflates that county and thins its neighbours. The same values appear in the table.
| County | Population | Providers | Per 100k |
|---|---|---|---|
| King County | 2,344,939 | 18,276 | 779.4 |
| Pierce County | 946,288 | 6,691 | 707 |
| Spokane County | 558,344 | 5,043 | 903.1 |
| Snohomish County | 870,656 | 4,942 | 567.6 |
| Clark County | 532,119 | 3,139 | 589.9 |
| Thurston County | 304,261 | 2,191 | 720.1 |
| Whatcom County | 236,392 | 1,809 | 765.1 |
| Kitsap County | 283,374 | 1,651 | 582.6 |
| Yakima County | 259,185 | 1,289 | 497.4 |
| Benton County | 221,722 | 1,117 | 503.6 |
| Skagit County | 132,975 | 825 | 620.8 |
| Cowlitz County | 114,885 | 774 | 673.7 |
| Lewis County | 88,062 | 668 | 758.3 |
| Chelan County | 81,941 | 593 | 723.7 |
| Clallam County | 78,202 | 589 | 753.1 |
| Grays Harbor County | 78,144 | 449 | 574.2 |
| Walla Walla County | 62,361 | 333 | 534 |
| Island County | 85,657 | 331 | 386.4 |
| Grant County | 105,727 | 312 | n/a |
| Stevens County | 49,668 | 260 | n/a |
| Mason County | 71,165 | 249 | 349.9 |
| Jefferson County | 33,970 | 234 | 689.1 |
| Okanogan County | 45,230 | 189 | 418.3 |
| Franklin County | 102,612 | 189 | 184.3 |
| Asotin County | 22,545 | 150 | n/a |
| Kittitas County | 48,803 | 144 | 294.5 |
| Pacific County | 24,357 | 144 | 589.7 |
| Whitman County | 48,512 | 130 | 267.8 |
| San Juan County | 18,577 | 89 | 479.5 |
| Douglas County | 46,473 | 57 | 122.2 |
| Pend Oreille County | 14,457 | 53 | 367.7 |
| Klickitat County | 24,331 | 53 | 217.8 |
| Adams County | 21,488 | 47 | 218 |
| Lincoln County | 11,982 | 28 | 230.8 |
| Ferry County | 7,517 | 25 | 338.2 |
| Skamania County | 12,669 | 24 | 186.9 |
| Wahkiakum County | 4,873 | 19 | 389.9 |
| Columbia County | 4,141 | 18 | 440.2 |
| Garfield County | 2,416 | 2 | n/a |
Provider-type mix vs the national picture
Each provider counts once under their primary taxonomy; the US share is printed beside each Washington figure for comparison.
When Washington's providers entered the registry
Active providers by NPI registry-entry year. Registry entry is not licensure. Clinicians typically register when they start billing, so this measures registrations, not the workforce itself. 2026 is a partial year.
Practice-location size
Share of Washington providers at single- vs multi-provider practice locations, by normalized practice address. This is a proxy; see the limitations below.
Get the numbers
County-level figures for all states (including Washington) are in the county CSV; state totals and mix are in their own files. Everything is CC BY 4.0, so cite certification.app, "US Mental Health Workforce" (June 2026 NPPES snapshot).
Use this chart
<a href="https://www.certification.app/data/mental-health-workforce"><img src="https://www.certification.app/data/mental-health-workforce/charts/wa-county-density.svg" alt="Washington mental health providers per 100,000 residents by county" width="100%" /></a> <p style="font-size:12px">"Washington mental health providers per 100k by county, June 2026 snapshot" by <a href="https://www.certification.app/data/mental-health-workforce">certification.app</a>, CC BY 4.0</p>
Reading these numbers
Counts are NPPES registrations at Washington practice addresses. They are headcounts, not FTEs or license tallies. Telehealth and multi-state practice are invisible; taxonomy self-designation is not license verification; the registry lags moves and retirements. Details: methodology.