Enrollment
414
Elementary
DISTRICT 364 · STATE 380
SCHOOL COMMUNITY·ENUMCLAW SCHOOL DISTRICT·NCES 530000100376
Black Diamond Elementary
25314 Baker Street, Black Diamond, WA 98010 · (360) 272-5006 · King County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL414 STUDENTS
Student : Teacher
15.9:1
26 FTE teachers
DISTRICT 19.4:1 · STATE 17.3:1
Free / Reduced Lunch
34%
142 students
DISTRICT 37% · STATE 51%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 56 | 14% |
| Grade 1 | 69 | 17% |
| Grade 2 | 82 | 20% |
| Grade 3 | 70 | 17% |
| Grade 4 | 62 | 15% |
| Grade 5 | 75 | 18% |
Student demographics
60%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 47% · STATE 68% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
Smarter Balanced + WCAS 2024-25 . % Met or Exceeded StandardEnglish Language Arts
59.7%
WA avg 58.4% . +1.2pp since 2014
Math
50.0%
WA avg 51.2% . +0.3pp since 2014
What 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.
Smarter Balanced + WCAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 59.7% | 50.0% |
| 2023-24 | 53.9% | 41.1% |
| 2022-23 | 53.5% | 45.4% |
| 2021-22 | 57.4% | 46.5% |
| 2018-19 | 62.1% | 52.3% |
| 2017-18 | 64.7% | 55.1% |
| 2016-17 | 63.3% | 56.3% |
| 2015-16 | 63.5% | 60.7% |
| 2014-15 | 58.5% | 49.7% |
% Met or Exceeded Standard, all students and all tested grades.
Source: Smarter Balanced + WCAS. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
51.2%
composite math + reading, all grades
Predicted
57.2%
based on WA schools with similar FRL share
Beats by
-6.0pp
below demographic expectation
What 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%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Where Black Diamond Elementary ranks
Among elementary schools| Measure | This school | In Washington | In King County |
|---|---|---|---|
| State test proficiency ranked highest first | 51.2% | #405 of 936 | #162 of 280 |
| Math proficiency ranked highest first | 50.0% | #445 of 1,103 | #164 of 281 |
| Reading proficiency ranked highest first | 59.7% | #308 of 1,102 | #131 of 280 |
| 3-year test score change ranked biggest gain first | +2.9pp | #375 of 928 | #96 of 274 |
| Enrollment ranked largest first | 414 | #574 of 1,268 | #158 of 299 |
| Students per teacher ranked fewest first | 15.9:1 | #577 of 1,085 | #140 of 280 |
| Diversity index ranked most diverse first | 59.6% | #533 of 1,088 | #226 of 281 |
| Free and reduced lunch ranked highest share first | 34.3% | #876 of 1,169 | #153 of 292 |
| Enrollment change since 2017-18 ranked fastest growth first | +41.3% | #10 of 257 | #3 of 54 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
414
+87 (+27%) vs 2020
+125% since 1990-91, when it was 184
Student : Teacher
15.9:1
was 15.6:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 414 | 26 | 15.9:1 | 34% (142) |
| 2023-24 | 412 | 25.9 | 15.9:1 | 28% (117) |
| 2022-23 | 397 | 24.5 | 16.2:1 | 25% (98) |
| 2020-21 | 327 | 21 | 15.6:1 | 24% (77) |
| 2017-18 | 293 | 14.9 | 19.7:1 | 35% (102) |
| 2015-16 | 295 | 16 | 18.4:1 | 35% (103) |
| 2010-11 | 271 | 14 | 19.4:1 | 31% (83) |
| 2000-01 | 264 | 15 | 17.6:1 | N/A |
| 1990-91 | 184 | 9 | 20.4:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Black Diamond Elementary.
About Black Diamond Elementary
Black Diamond Elementary is a mid-sized elementary school located in Black Diamond, Washington. It reported 414 students in kindergarten through 5 in 2024-25.
Black Diamond Elementary is part of a district of 10 schools: Enumclaw School District, with 4,564 students.
The largest group at Black Diamond Elementary is White students, at 59%. Other groups include 21% Hispanic, 10% Asian, and 8% multiracial. King County residents are about 55% White, a similar share. On the diversity index, which measures the chance that two random students are from different groups, Black Diamond Elementary scores 60%.
There are about 15.9 students for every full-time-equivalent teacher at Black Diamond Elementary, which has 26. By comparison, the average for elementary schools in Washington is 17.3:1. Free or reduced-price lunch eligibility at Black Diamond Elementary is about 34%.
The school's average proficiency rate across its state test results is 51.2%. For its free or reduced-price lunch share, the predicted value is 57.2%.
In King County, the median household earns about $124,746 a year, about 57% of adults have at least a bachelor's degree, and the poverty rate is about 5%. King County's 544 public schools enroll about 278,492 students and include Black Diamond Elementary.
Of the public schools around it, Black Diamond Elementary is closest to Sawyer Woods Elementary School, about 1.9 miles away. There are at least 8 other public schools within five miles. Black Diamond Elementary ranks 7th of 9 among nearby schools on average proficiency, with 51.2% against a local average of 57.4%.
In the federal locale system, Black Diamond Elementary is coded Suburb: Large, for schools in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Enrollment increased 27% over 4 years, reaching 414 in 2024-25.
You can use this page to share news and ask questions about open houses, carpools, and field trips. You can also rate the school on this page.
King County at a glance
View full county profilePopulation
2,287,171
Census ACS
Median income
$124,746
Household, ACS
Bachelor's+
57%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
544
278,492 students
Quick facts
Related schools
Other schools in Enumclaw School District
- Enumclaw Sr High SchoolHigh · 1,333 students
- Enumclaw Middle SchoolMiddle · 522 students
- Thunder Mountain Middle SchoolMiddle · 506 students
- Byron Kibler Elementary SchoolElementary · 442 students
- Westwood Elementary SchoolElementary · 409 students
- Sunrise ElementaryElementary · 382 students
Other schools in Black Diamond
- Sawyer Woods Elementary SchoolElementary · 303 students
Nearby schools
- Sawyer Woods Elementary School1.9 mi · 303
- Kentlake High School2.9 mi · 1,561
- Glacier Park Elementary3.0 mi · 803
- Tahoma Senior High School3.5 mi · 2,919
- Rock Creek Elementary4.3 mi · 686
- Summit Trail Middle School4.3 mi · 1,097
Frequently asked questions
About Black Diamond ElementaryHow large is Black Diamond Elementary?
Black Diamond Elementary enrolls approximately 414 students in grades KG-05.
What age range does Black Diamond Elementary serve?
Black Diamond Elementary serves students from grade KG through grade 05.
How many students per teacher at Black Diamond Elementary?
Approximately 15.9:1 students per teacher at Black Diamond Elementary.
How diverse is Black Diamond Elementary?
Black Diamond Elementary reports a student body of 59% White, 21% Hispanic, 2% Black, 10% Asian, 8% Two or more.
Who oversees Black Diamond Elementary?
Black Diamond Elementary is overseen by Enumclaw School District in King County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.