Grade Trends

Armstrong Elementary

Grades K–6 Public District: Pomona Unified

22750 Beaverhead Dr., Diamond Bar, CA 91765 Map

Math (met standard)
26%
−15 state 41% · 2025-26
English (met standard)
45%
−1 state 47% · 2025-26
Science (met standard)
37%
+2 state 35% · 2025-26
Low income
67%
free or reduced-price lunch
Students
251
2024-25
Students per teacher
18.6
2024-25

Test score trends

Share of students who met or exceeded the state standard each year.

Latest results by grade

Grade Math English Science
Grade 3 33% state 47% · 2025-26 36% state 44% · 2025-26 —
Grade 4 16% state 42% · 2025-26 44% state 46% · 2025-26 —
Grade 5 24% state 37% · 2025-26 62% state 49% · 2025-26 37% state 35% · 2025-26
Grade 6 29% state 37% · 2025-26 33% state 48% · 2025-26 —
All grades 26% state 41% · 2025-26 45% state 47% · 2025-26 37% state 35% · 2025-26
Results by year (all grades)
School year Math English Science
2025-26 26% state 41% 45% state 47% 37% state 35%
2024-25 29% state 41% 47% state 47% 24% state 33%
2023-24 41% state 39% 50% state 45% 22% state 33%
2022-23 40% state 37% 54% state 45% 22% state 32%
2021-22 35% state 36% 50% state 45% 44% state 31%
2018-19 43% state 43% 67% state 50% 31% state 32%
2017-18 45% state 41% 52% state 49% —
2016-17 34% state 39% 47% state 46% —
2015-16 35% state 37% 48% state 46% —
2014-15 38% state 34% 50% state 42% —

Students

Race and ethnicity, 2024-25

Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).

Nearby schools

Subject percentages show the share of students who met or exceeded the state standard.

Pick to compare
Lorbeer Middle
Grades 7–8 · Pomona Unified
0.6 mi
33%
−4 vs state
51%
+1 vs state
33%
−3 vs state
7% Average of math, English and science: 32% in 2022-23 → 39% in 2025-26 74% 688 Hispanic 73%
Golden Springs Elementary
Grades K–6 · Pomona Unified
1.0 mi
42%
+1 vs state
57%
+10 vs state
37%
+2 vs state
Average of math, English and science: 43% in 2022-23 → 45% in 2025-26 72% 388 Hispanic 69%
Pantera Elementary
Grades K–6 · Pomona Unified
1.7 mi
81%
+40 vs state
82%
+36 vs state
65%
+30 vs state
4% Average of math, English and science: 72% in 2022-23 → 76% in 2025-26 48% 512 Asian 68%
Maple Hill Elementary
Grades K–5 · Walnut Valley Unified
1.7 mi
80%
+38 vs state
82%
+36 vs state
65%
+30 vs state
4% Average of math, English and science: 80% in 2022-23 → 76% in 2025-26 27% 556 Asian 80%
Chaparral Middle
Grades 6–8 · Walnut Valley Unified
1.8 mi
81%
+44 vs state
81%
+32 vs state
70%
+34 vs state
4% Average of math, English and science: 73% in 2022-23 → 77% in 2025-26 25% 1,349 Asian 77%
Quail Summit Elementary
Grades K–5 · Walnut Valley Unified
1.8 mi
81%
+39 vs state
75%
+28 vs state
76%
+40 vs state
3% Average of math, English and science: 80% in 2022-23 → 77% in 2025-26 25% 696 Asian 74%
Suzanne Middle
Grades 6–8 · Walnut Valley Unified
1.9 mi
65%
+28 vs state
74%
+25 vs state
64%
+28 vs state
Average of math, English and science: 66% in 2022-23 → 68% in 2025-26 25% 1,190 Asian 65%
Ranch Hills Elementary
Grades K–6 · Pomona Unified
2.1 mi
47%
+6 vs state
57%
+10 vs state
36%
±0 vs state
5% Average of math, English and science: 52% in 2022-23 → 47% in 2025-26 63% 449 Hispanic 63%
Walnut Elementary
Grades K–5 · Walnut Valley Unified
2.5 mi
78%
+36 vs state
72%
+26 vs state
64%
+28 vs state
Average of math, English and science: 72% in 2022-23 → 71% in 2025-26 25% 706 Asian 78%
Vejar Elementary
Grades K–5 · Walnut Valley Unified
2.5 mi
59%
+17 vs state
58%
+11 vs state
53%
+17 vs state
Average of math, English and science: 58% in 2022-23 → 56% in 2025-26 32% 631 Asian 61%