Black Diamond Elementary
Test scores
Smarter Balanced + WCAS 2024-25 . % Met or Exceeded StandardWhat this means: On the Smarter Balanced + WCAS, Washington's statewide test, about 60 of every 100 students at this school read and write at grade level and about 50 of 100 do math at grade level. Across all Washington schools, those numbers are about 58 and 51. Reading and writing scores are up about 1 points since 2014, while math scores have held steady.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 51% of students here test proficient in math and reading, compared with the roughly 57% typical for Washington schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Washington's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About Black Diamond Elementary
Black Diamond Elementary is a primary school of moderately sized scale in Black Diamond, Washington, one of the schools within Enumclaw School District, works with 414 students in grades K through 5.
Enumclaw School District comprises 10 schools with combined enrollment of 4,564 students; Black Diamond Elementary is among them.
Looking at the student body, Black Diamond Elementary shows that the largest single group is White, at 59% of enrollment. Beyond that, the school lists 21% Hispanic, 10% Asian, 8% multiracial. That mix tracks the wider county fairly closely.
Looking at school resources, The school employs 26 full-time-equivalent teachers, for a student-teacher ratio near 15.9:1. That figure is tighter than the state norm's 17.3:1 average. An estimated 34% of students are eligible for free or reduced-price lunch, often used as a Title I proxy.
On a residual basis (actual vs predicted given the student mix), Black Diamond Elementary sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 57.2%; this one delivers 51.2%.
Around the school, King County reports that median household income runs about $124,746, 57% of adults hold a bachelor's degree or higher, and the poverty rate sits near 5%. Across King County's 544 public schools (combined enrollment of about 278,492 students), Black Diamond Elementary is one campus in the mix.
Nearest neighbor: Sawyer Woods Elementary School, around 1.9 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Black Diamond Elementary at 7th of 9; the average score across the group is 57.4%.
Black Diamond Elementary operates from a suburban location.
Five-year trend. Over the past 7-year window, the student count rose 41%: 293 students in 2018 compared to 414 in 2025. White enrollment moved from 73% to 59% across the same window. The student-to-teacher ratio pulled in from 19.7:1 in 2018 to 15.9:1 today.
In the discussion threads here, the feed for Black Diamond Elementary typically covers fundraisers, lost-and-found posts, and report-card season. Contributors range from current parents to recent graduates and teachers.
King County at a glance
View full county profileQuick facts
Related schools
- Enumclaw Sr High SchoolHigh · 1,333 students
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- Sawyer Woods Elementary SchoolElementary · 303 students
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