Grade Trends

Walter Zimmerman Elementary

Grades K–6 Public District: Colton Joint Unified

11050 Linden Ave., Bloomington, CA 92316 Map

Math (met standard)
17%
−24 state 41% · 2025-26
English (met standard)
31%
−16 state 47% · 2025-26
Science (met standard)
19%
−16 state 35% · 2025-26
Low income
92%
free or reduced-price lunch
Students
512
2024-25
Students per teacher
22.3
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 22% state 47% · 2025-26 21% state 44% · 2025-26 —
Grade 4 14% state 42% · 2025-26 32% state 46% · 2025-26 —
Grade 5 12% state 37% · 2025-26 35% state 49% · 2025-26 19% state 35% · 2025-26
Grade 6 21% state 37% · 2025-26 34% state 48% · 2025-26 —
All grades 17% state 41% · 2025-26 31% state 47% · 2025-26 19% state 35% · 2025-26
Results by year (all grades)
School year Math English Science
2025-26 17% state 41% 31% state 47% 19% state 35%
2024-25 18% state 40% 31% state 47% 20% state 33%
2023-24 19% state 39% 35% state 45% 19% state 33%
2022-23 20% state 38% 34% state 45% 13% state 32%
2021-22 16% state 36% 38% state 45% 20% state 31%
2018-19 31% state 43% 43% state 50% 18% state 32%
2017-18 26% state 41% 39% state 49% —
2016-17 25% state 39% 38% state 46% —
2015-16 17% state 38% 37% state 46% —
2014-15 11% state 34% 31% 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
Crestmore Elementary
Grades K–6 · Colton Joint Unified
0.6 mi
29%
−12 vs state
42%
−5 vs state
34%
−2 vs state
7% Average of math, English and science: 28% in 2022-23 → 35% in 2025-26 87% 586 Hispanic 98%
Ruth O. Harris Middle
Grades 7–8 · Colton Joint Unified
1.0 mi
15%
−22 vs state
30%
−20 vs state
11%
−24 vs state
9% Average of math, English and science: 10% in 2022-23 → 19% in 2025-26 86% 562 Hispanic 89%
Sycamore Hills Elementary
Grades K–6 · Colton Joint Unified
1.4 mi
24%
−17 vs state
39%
−8 vs state
37%
+2 vs state
9% Average of math, English and science: 24% in 2022-23 → 33% in 2025-26 80% 565 Hispanic 81%
Ruth Grimes Elementary
Grades K–6 · Colton Joint Unified
1.6 mi
33%
−8 vs state
49%
+2 vs state
22%
−13 vs state
Average of math, English and science: 36% in 2022-23 → 34% in 2025-26 85% 606 Hispanic 93%
Joe Baca
Grades 7–8 · Colton Joint Unified
1.8 mi
18%
−19 vs state
26%
−24 vs state
13%
−22 vs state
4% Average of math, English and science: 15% in 2022-23 → 19% in 2025-26 92% 705 Hispanic 91%
Options for Youth-Acton
Grades 7–12 Charter · Options for Youth-Acton District
1.8 mi
10%
−22 vs state
42%
−15 vs state
22%
−11 vs state
7% Average of math, English and science: 18% in 2022-23 → 25% in 2025-26 83% 2,171 Hispanic 73%
Mary B. Lewis Elementary
Grades K–6 · Colton Joint Unified
1.8 mi
22%
−19 vs state
35%
−12 vs state
25%
−11 vs state
10% Average of math, English and science: 17% in 2022-23 → 27% in 2025-26 93% 548 Hispanic 87%
Gerald A. Smith Elementary
Grades K–6 · Colton Joint Unified
1.9 mi
31%
−10 vs state
39%
−8 vs state
23%
−12 vs state
7% Average of math, English and science: 24% in 2022-23 → 31% in 2025-26 87% 565 Hispanic 93%
Samuel W. Simpson Elementary
Grades K–5 · Rialto Unified
2.4 mi
54%
+12 vs state
68%
+21 vs state
49%
+13 vs state
13% Average of math, English and science: 44% in 2022-23 → 57% in 2025-26 82% 638 Hispanic 90%
Maple Elementary
Grades K–5 · Fontana Unified
2.4 mi
23%
−19 vs state
31%
−16 vs state
17%
−18 vs state
3% Average of math, English and science: 21% in 2022-23 → 24% in 2025-26 81% 511 Hispanic 90%