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SCHOOL COMMUNITY·RIVERSIDE UNIFIED·NCES 063315011183

Lake Mathews Elementary

12252 Blackburn Rd., Riverside, CA 92503 · (951) 352-5520 · Riverside County
GRADES KG–06ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL733 STUDENTS
Enrollment
733
Elementary
DISTRICT 671 · STATE 465
Student : Teacher
26.6:1
28 FTE teachers
DISTRICT 24.2:1 · STATE 22.3:1
Free / Reduced Lunch
45%
330 students
DISTRICT 76% · STATE 65%
Community
6
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

GradeStudentsShare
Kindergarten12417%
Grade 18812%
Grade 210014%
Grade 38912%
Grade 412117%
Grade 510715%
Grade 610414%

This year's kindergarten class (124) is 19% larger than its 6th grade class (104).

Student demographics
69%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 48% · STATE 62% · US 70%
White
18325%
DISTRICT 15% · STATE 20% · US 43%
Hispanic
33345%
DISTRICT 70% · STATE 56% · US 30%
Black
497%
DISTRICT 6% · STATE 5% · US 15%
Asian
12517%
DISTRICT 5% · STATE 12% · US 6%
Two+
416%
DISTRICT 4% · STATE 6% · US 5%
Native American
20%
DISTRICT 0% · STATE 0% · US 1%
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
Male
36550%
Female
36850%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
63.0%
CA avg 49.1% . -0.0pp since 2014
Math
52.6%
CA avg 37.7% . -3.4pp since 2014

What this means: On the CAASPP, California's statewide test, about 63 of every 100 students at this school read and write at grade level and about 53 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores have held steady since 2014, while math scores are down about 3 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts36.3%26.7%21.0%16.1%
Math25.8%26.8%28.5%18.9%
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.

CAASPP results by year

School yearEnglish Language ArtsMath
2024-2563.0%52.6%
2023-2462.2%51.7%
2022-2357.3%52.8%
2021-2261.2%49.8%
2018-1966.0%61.7%
2017-1870.9%62.5%
2016-1765.9%58.5%
2015-1671.0%63.0%
2014-1563.0%56.0%
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
57.3%
composite math + reading, all grades
Predicted
53.2%
based on CA schools with similar FRL share
Beats by
+4.1pp
above demographic expectation

What this means: About 57% of students here test proficient in math and reading, compared with the roughly 53% typical for California 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 California'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 →

Schools most like Lake Mathews Elementary

Lake Mathews Elementary's state test result (57.3% proficient) is higher than 3 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Lake Mathews Elementary this school73345.0%57.3%
Mary Casey Black Elementary
Brentwood
68047.1%39.8%
Cambridge Elementary
Vacaville
73846.1%42.9%
Benjamin Franklin Elementary
Riverside
76748.9%62.6%
K. I. Jones Elementary
Fairfield
76047.2%58.3%
Brentwood Elementary
Brentwood
81145.6%48.1%
Matched among California elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Lake Mathews Elementary ranks

Among elementary schools
MeasureThis schoolIn CaliforniaIn Riverside County
State test proficiency
ranked highest first
57.3%#1,257 of 5,151#30 of 283
Math proficiency
ranked highest first
52.6%#1,432 of 5,172
▼ 13
#37 of 283
▼ 1
Reading proficiency
ranked highest first
63.0%#1,142 of 5,172
▼ 24
#27 of 283
▼ 5
3-year test score change
ranked biggest gain first
+2.3pp#2,554 of 5,116#160 of 280
Enrollment
ranked largest first
733#609 of 5,915#92 of 296
Students per teacher
ranked fewest first
26.6:1#5,025 of 5,352#284 of 292
Diversity index
ranked most diverse first
69.5%#697 of 5,354#25 of 292
Free and reduced lunch
ranked highest share first
45.0%#4,134 of 5,625#275 of 294
Enrollment change since 2017-18
ranked steepest decline first
-14.4%#2,111 of 3,837#106 of 207
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. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
733
-31 (-4%) vs 2020
-8% since 2010-11, when it was 794
Student : Teacher
26.6:1
was 29.4:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2573327.626.6:145% (330)
2023-247692926.5:124% (185)
2022-237893026.3:142% (329)
2020-217642629.4:142% (319)
2017-188563226.8:129% (244)
2015-168813326.7:127% (239)
2010-11794N/AN/A25% (200)
Source: NCES Common Core of Data. Rows are the federal collections on file for Lake Mathews Elementary.

Since 2017-18: students down 14% (856 to 733); teachers down 14% (32 to 27.6).

About Lake Mathews Elementary

Lake Mathews Elementary is a large elementary school in Riverside, California. Its grade span covers kindergarten through 6, with 733 students on the rolls. Across elementary schools in California, the average enrollment is about 465.

Lake Mathews Elementary is one of the 48 schools that make up Riverside Unified (38,002 students in total).

The biggest share of students at Lake Mathews Elementary, 45%, is Hispanic. The rest of enrollment is 25% White, 17% Asian, 7% Black, and 6% multiracial. The diversity index for Lake Mathews Elementary is 69%. For US public schools as a whole it is 70%.

The school lists 27.6 full-time-equivalent teachers and a student-to-teacher ratio of 26.6:1. Statewide, elementary schools in California average 22.3:1. Free or reduced-price lunch covers 45% of the student body. By comparison, the figure for public schools in Riverside County is 74%.

Schools in California with a similar free or reduced-price lunch share are predicted to score about 53.2%. Lake Mathews Elementary scores 57.3%.

Census data for Riverside County show the median household earns about $93,074 a year, 26% of adults hold a bachelor's degree or higher, and about 8% of people live in poverty. Counting Lake Mathews Elementary, Riverside County has 543 public schools.

Lake Mathews Elementary's closest public school neighbor is Lake Hills Elementary, about 2.1 miles away. Within five miles of Lake Mathews Elementary, there are at least 8 other public schools. Of 8 schools in the immediate area with test results, Lake Mathews Elementary ranks 2nd on average proficiency.

NCES assigns Lake Mathews Elementary the locale Suburb: Large, meaning in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Federal enrollment counts decreased from 764 (2020-21) to 733 (2024-25). From 2020-21 to 2024-25, the ratio dropped from 29.4:1 to 26.6:1.

The discussion board for Lake Mathews Elementary is open to topics like athletics, class schedules, and weather closures. Parents, students, alumni, and staff are welcome to post.

Riverside County at a glance

View full county profile
Population
2,478,600
Census ACS
Median income
$93,074
Household, ACS
Bachelor's+
26%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
543
424,872 students

Quick facts

School name
Lake Mathews Elementary
District
Riverside Unified
Address
12252 Blackburn Rd., Riverside, CA 92503
Phone
(951) 352-5520
County
Riverside County
Level
Elementary
Grade range
KG–06
Total enrollment
733
Teachers (FTE)
28
Student–teacher ratio
26.6:1
Free and reduced lunch
330 (45%)
Locale
21-Suburb: Large
NCES ID
063315011183
Charter school
No
Virtual school
No

Related schools

Other schools in Riverside Unified
Other schools in Riverside
Nearby schools

Frequently asked questions

About Lake Mathews Elementary
What is the total enrollment at Lake Mathews Elementary?
Lake Mathews Elementary enrolls approximately 733 students in grades KG-06.
What grades does Lake Mathews Elementary serve?
Lake Mathews Elementary serves grades KG-06.
What is the student-teacher ratio at Lake Mathews Elementary?
The student-to-teacher ratio at Lake Mathews Elementary is approximately 26.6:1 (28 FTE teachers).
How diverse is Lake Mathews Elementary?
Lake Mathews Elementary reports a student body of 25% White, 45% Hispanic, 7% Black, 17% Asian, 6% Two or more.
Is Lake Mathews Elementary public or private?
Lake Mathews Elementary is a public K-12 school, overseen by Riverside Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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