Six years ago, Washington's public schools were getting bigger every year. In 2018-19, the system enrolled about 1.14 million students; the next year, before COVID hit mid-school-year, it added another 9,000. Since then, enrollment has dropped to about 1.11 million — a net loss of roughly 31,000 students from 2018-19, and 40,000 from the 2019-20 peak.
OSPI Washington State Report Card via data.wa.gov (enrollment_2018_19 through enrollment_2024_25, all 7 years). Sums school-level All-Grades headcounts; excludes private schools (NCES PSS, biennial).
The system has been clawing back slowly since the 2021-22 trough — up about 15,000 in three years — but is still well below where it started. The flat-line trend is, if anything, less worrying than the pattern underneath it: about a fifth of districts have lost more than 10% of their enrollment in six years, and another twenty or so have grown by similar amounts. The map below is mostly large urban districts shrinking and exurban districts growing.
The biggest losers
By raw student count, the dozen districts that shed the most enrollment between 2018-19 and 2024-25 are almost entirely urban or inner-suburban:
| Seattle SD | -4,121 | |
| Evergreen SD (Vancouver area) | -3,483 | |
| Kent SD | -1,936 | |
| Issaquah SD | -1,757 | |
| Vancouver SD | -1,701 | |
| Renton SD | -1,537 | |
| Marysville SD | -1,430 | |
| Spokane SD | -1,380 | |
| Bellevue SD | -1,286 | |
| Tacoma SD | -1,278 | |
| Federal Way SD | -1,234 | |
| Clover Park SD | -1,201 |
OSPI enrollment files, school-level All-Grades headcounts summed to district. Districts with fewer than 3,000 students in 2018-19 excluded; small-N volatility dominates among them.
Seattle SD alone accounts for about 13% of the statewide net loss. Two patterns stand out: the inner-suburban districts (Issaquah, Bellevue, Renton, Marysville, Federal Way, Clover Park) lost between 6% and 13% of their 2018-19 enrollment, and three of the state's largest districts — Seattle, Tacoma, and Spokane — lost 4-7%. Mercer Island lost 11% (a striking number for one of the state's wealthiest districts), Bremerton 12%, North Kitsap 11%.
The exurban gainers
On the opposite side of the ledger, twelve districts gained enrollment over the same window — almost all of them exurban, distributed across Pierce County, the Snohomish foothills, Clark County, and the Spokane periphery:
| Bethel SD (Pierce) | +1,351 | |
| Ridgefield SD (Clark) | +1,106 | |
| Sumner-Bonney Lake (Pierce) | +927 | |
| Lake Stevens SD (Snohomish) | +895 | |
| Auburn SD (King/Pierce) | +686 | |
| Cheney SD (Spokane area) | +532 | |
| Central Valley SD (Spokane Valley) | +485 | |
| White River SD (Pierce) | +403 | |
| Tahoma SD (Maple Valley) | +357 | |
| Enumclaw SD (Pierce/King) | +353 | |
| Quincy SD (Grant County) | +215 |
OSPI enrollment files. Ridgefield SD grew by 34% over the six-year window, the largest percentage increase for any district above 3,000 students.
The pattern is consistent enough that it's almost dull to describe: in-fill suburbs of the major metros lost enrollment; the exurbs at the edge of those metros (Sumner, Lake Stevens, Ridgefield) gained it. Plus Spokane's exurbs (Cheney, Central Valley) and a couple of small-town districts (Omak, Quincy, Elma) that bucked their region's overall trend.
Where the loss is heaviest by region
Rolled up to Washington's nine Educational Service Districts — the state's regional administrative groupings — the headline finding is that western Washington's school systems have lost more enrollment than eastern Washington's. Puget Sound (ESD 121, the Seattle-Tacoma metro) and ESD 112 (Vancouver / Clark County) account for most of the net statewide decline.
| ESD 112 (SW WA / Vancouver) | -5.7% | |
| Olympic ESD 114 (Kitsap/Olympic Pen.) | -3.9% | |
| Puget Sound ESD 121 (Seattle/Tacoma) | -3.4% | |
| Northwest ESD 189 (Bellingham/Mt. Vernon) | -3.0% | |
| North Central ESD 171 (Wenatchee) | -2.1% | |
| Capital Region ESD 113 (Olympia) | -1.6% | |
| South Central ESD 105 (Yakima Valley) | -1.6% | |
| NE WA ESD 101 (Spokane) | -0.8% | |
| SE WA ESD 123 (Tri-Cities) | -0.4% |
OSPI enrollment files. Each ESD groups districts geographically; Puget Sound ESD 121 alone covers about 430,000 students.
Eastern Washington has held roughly steady (ESD 101 / Spokane area: -0.8%; ESD 123 / Tri-Cities: -0.4%); western Washington has not. Charter schools, though small in absolute terms, are the only category that has grown substantially over the window — from about 2,900 students in 2018-19 to 4,600 in 2024-25, a 60% increase.
And about fifty schools just closed
Among the larger casualties: West Valley Middle School (West Valley SD, Yakima), Wilburton Elementary (Bellevue SD), Endeavour Intermediate (Fife SD), Sterling School (Eastmont SD), Clovis Point Intermediate (Eastmont SD), Tri-Tech Skills Center (Kennewick) — each with 500+ students in 2018-19. Many smaller schools also closed. School-closure announcements have been a recurring feature of school-board meetings across the state, and they show up in the data — districts that have lost 5-10% of their enrollment in six years often can't sustain the building inventory they used to.
What's missing from this picture
The crucial unanswered question is where the 31,000 net-missing students went. We can rule out a few things: they didn't go to charter schools (only 1,700 net new there), they didn't move out of state at that scale (state population grew over the same period), and the public-school enrollment loss is concentrated geographically rather than spread evenly. That suggests two destinations — private schools and homeschooling — but neither has good multi-year per-school data in Washington. Private schools don't have to report enrollment to OSPI, and the only national survey of them (NCES PSS) is biennial and runs about three years behind. Homeschool registration figures are reported by district but aren't centralized in a usable form. The next data refresh of PSS (covering 2023-24) is the most direct line on the question; until then, the answer is "we know they left but can't quite see where to."