Armstrong Elementary School
Armstrong Elementary School is a public primary school in Diamond Bar, CA, serving grades K–6, rated C, with 251 students and an 18.6:1 student-teacher ratio.
In 2024-2025, the share of students meeting the state standard was 47% in English Language Arts, 29% in Math and 24% in Science.
CTopHap school rating
- Rating
- C
- Grades
- K–6
- Enrollment
- 251
- Students per teacher
- 18.6:1
- Level
- Primary
- Type
- Public · Regular
2024-2025 testing year
State test results
Share of students meeting or exceeding the state standard.
English Language Arts47%
Math29%
Science24%
Academics and programs
- Open enrollment
- No
Student body
Hispanic60%
Asian15%
White10%
Two or more races9%
Black6%
- Male / female
- 57% / 43%
- Free or reduced lunch
- 67%
- Enrollment change vs prior year
- -14.3%
- Prior-year enrollment
- 293
Homes assigned to this school
2,140 homes in TopHap's records are assigned to Armstrong Elementary School. These 40 are sampled evenly down the value ranking, so they span the whole zone rather than just its most expensive streets.
- 23209 Sabana DrDiamond Bar, CA 917654 bd · 3 ba · 2,080 ft² · built 1964$1.5M
- 23302 Wagon Trail RdDiamond Bar, CA 917653 bd · 3 ba · 2,268 ft² · built 1974$1.1M
- 324 S Rock River RdDiamond Bar, CA 917653 bd · 2 ba · 2,065 ft² · built 1970$1.1M
- 23311 Wagon Trail RdDiamond Bar, CA 917654 bd · 2 ba · 1,881 ft² · built 1974$1M
- 251 N Rock River DrDiamond Bar, CA 917653 bd · 2 ba · 1,501 ft² · built 1973$1M
- 870 Golden Prados DrDiamond Bar, CA 917654 bd · 3 ba · 2,324 ft² · built 1972$991K
- 23151 Rio Lobos RdDiamond Bar, CA 917653 bd · 2 ba · 1,449 ft² · built 1984$977K
- 405 Deep Hill RdDiamond Bar, CA 917654 bd · 2 ba · 1,677 ft² · built 1975$959K
- 772 Farben DrDiamond Bar, CA 917654 bd · 3 ba · 2,324 ft² · built 1973$938K
- 815 Golden Prados DrDiamond Bar, CA 917654 bd · 3 ba · 1,811 ft² · built 1972$922K
- 830 Golden Prados DrDiamond Bar, CA 917654 bd · 3 ba · 1,980 ft² · built 1972$902K
- 360 S Rock River RdDiamond Bar, CA 917654 bd · 2 ba · 1,753 ft² · built 1973$890K
- 633 Great Bend DrDiamond Bar, CA 917654 bd · 2 ba · 1,881 ft² · built 1975$877K
- 765 Panhandle DrDiamond Bar, CA 917654 bd · 2 ba · 1,881 ft² · built 1974$866K
- 208 Cottonwood Cove DrDiamond Bar, CA 917653 bd · 2 ba · 1,365 ft² · built 1969$853K
- 667 Farben DrDiamond Bar, CA 917654 bd · 2 ba · 1,881 ft² · built 1974$840K
- 410 Gunsmoke DrDiamond Bar, CA 917653 bd · 2 ba · 1,553 ft² · built 1975$828K
- 221 S Rock River RdDiamond Bar, CA 917654 bd · 2 ba · 1,465 ft² · built 1964$816K
- 23418 Mane DrDiamond Bar, CA 917654 bd · 2 ba · 1,708 ft² · built 1973$803K
- 636 Big Falls DrDiamond Bar, CA 917653 bd · 2 ba · 1,288 ft² · built 1964$792K
- 672 Farben DrDiamond Bar, CA 917654 bd · 2 ba · 1,554 ft² · built 1974$782K
- 427 Gunsmoke DrDiamond Bar, CA 917653 bd · 2 ba · 1,553 ft² · built 1975$769K
- 23014 Lela DrDiamond Bar, CA 917653 bd · 2 ba · 1,501 ft² · built 1974$757K
- 436 Gunsmoke DrDiamond Bar, CA 917653 bd · 2 ba · 1,449 ft² · built 1975$749K
- 22703 Casetas DrDiamond Bar, CA 917653 bd · 2 ba · 1,391 ft² · built 1971$737K
- 222 N Prospectors RdDiamond Bar, CA 917654 bd · 2 ba · 1,427 ft² · built 1966$721K
- 627 Strongbow DrDiamond Bar, CA 917654 bd · 2 ba · 1,425 ft² · built 1964$697K
- 22828 Sunset Crossing RdDiamond Bar, CA 917653 bd · 2 ba · 1,274 ft² · built 1962$664K
- 22871 Hilton Head DrDiamond Bar, CA 917652 bd · 3 ba · 1,056 ft² · built 1986$532K
- 22794 Lakeway DrDiamond Bar, CA 917652 bd · 2 ba · 794 ft² · built 1987$492K
- 22848 Hilton Head DrDiamond Bar, CA 917652 bd · 2 ba · 934 ft² · built 1981$475K
- 318 S Prospectors RdDiamond Bar, CA 917652 bd · 2 ba · 1,345 ft² · built 1979$465K
- 22820 Hilton Head DrDiamond Bar, CA 917652 bd · 2 ba · 934 ft² · built 1981$454K
- 22828 Hilton Head DrDiamond Bar, CA 917652 bd · 2 ba · 934 ft² · built 1981$447K
- 22816 Hilton Head DrDiamond Bar, CA 917652 bd · 1 ba · 850 ft² · built 1981$439K
- 380 S Prospectors RdDiamond Bar, CA 917651 bd · 1 ba · 884 ft² · built 1979$424K
- 22879 Hilton Head DrDiamond Bar, CA 917652 bd · 1 ba · 817 ft² · built 1986$407K
- 22734 Lakeway DrDiamond Bar, CA 917651 bd · 1 ba · 687 ft² · built 1984$391K
- 22809 Hilton Head DrDiamond Bar, CA 917651 bd · 1 ba · 687 ft² · built 1981$367K
- 348 S Prospectors RdDiamond Bar, CA 917651 bd · 1 ba · 884 ft² · built 1979$345K
School details
- Address
- 22750 Beaverhead Dr, Diamond Bar, CA 91765
- Phone
- (909) 397-4563
- Website
- pusd.org
- Setting
- Suburb - Large
- Status
- Operational
- NCES ID
- 063132004836
School district
Pomona Unified School District
- District rating
- C+
- Schools
- 37
- Students
- 20,475
- Spending per student
- $18,774
- Teachers (FTE)
- 970
- Grades
- K–12
Other schools in this district
- Alcott Elementary SchoolGrades K–6 · 606 studentsD-
- Allison Elementary SchoolGrades K–6 · 427 studentsB+
- Arroyo Elementary SchoolGrades K–6 · 479 studentsD
- Barfield Elementary SchoolGrades K–6 · 282 studentsC+
- Cortez Elementary SchoolGrades K–8 · 607 studentsC+
- Decker Elementary SchoolGrades K–6 · 437 studentsC-
- Golden Springs Elementary SchoolGrades K–6 · 388 studentsB+
- Harrison Elementary SchoolGrades K–8 · 328 studentsD-
- Kellogg Polytechnic Elementary SchoolGrades K–6 · 302 studentsD
- Kingsley Elementary SchoolGrades K–5 · 656 studentsD
- La Verne Science and Technology CharterGrades K–6 · 270 studentsC+
- Lexington Elementary SchoolGrades K–8 · 537 studentsA-