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SCHOOL COMMUNITY·JEFFERSON COUNTY SCHOOL DISTRICT NO. R-1·NCES 080480000796

Warder Elementary School

7840 CARR DRIVE, ARVADA, CO 80005 · (303) 982-0950 · Jefferson County
GRADES PK–05ELEMENTARY21-SUBURBREGULAR SCHOOL432 STUDENTS
B
allk12 Grade
Scored higher than 62% of Colorado public elementary schools
  • B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Colorado public elementary schools

Enrollment
432
Elementary
DISTRICT 404 · STATE 379
Student : Teacher
16.7:1
26 FTE teachers
DISTRICT 15.9:1 · STATE 16.6:1
Free / Reduced Lunch
22%
97 students
DISTRICT 35% · STATE 50%
Community
5
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
Pre-K4310%
Kindergarten7217%
Grade 16515%
Grade 26515%
Grade 36816%
Grade 45312%
Grade 56615%

This year's kindergarten class (72) is 9% larger than its 5th grade class (66).

Student demographics
43%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 52% · STATE 62% · US 70%
White
31072%
DISTRICT 64% · STATE 49% · US 43%
Hispanic
9522%
DISTRICT 27% · STATE 37% · US 30%
Black
10%
DISTRICT 1% · STATE 5% · US 15%
Asian
20%
DISTRICT 3% · STATE 3% · US 6%
Two+
235%
DISTRICT 5% · STATE 5% · US 5%
Native American
10%
DISTRICT 0% · STATE 1% · 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
20648%
Female
22652%

Discussions

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Test scores

CMAS 2024-25 . % Met or Exceeded Expectations
English Language Arts
54.1%
CO avg 44.9% . +2.6pp since 2023
Math
47.5%
CO avg 36.1% . -3.1pp since 2023

What this means: On the CMAS, Colorado's statewide test, about 54 of every 100 students at this school read and write at grade level and about 48 of 100 do math at grade level. Across all Colorado schools, those numbers are about 45 and 36. Reading and writing scores are up about 3 points since 2023, while math scores are down about 3 points.

CMAS results by year

School yearEnglish Language ArtsMath
2024-2554.1%47.5%
2023-2451.5%50.6%
% Met or Exceeded Expectations, all students and all tested grades.
Source: CMAS. 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
52.6%
composite math + reading, all grades
Predicted
53.1%
based on CO schools with similar FRL share
Beats by
-0.5pp
below demographic expectation

What this means: About 53% of students here test proficient in math and reading, compared with the roughly 53% typical for Colorado 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 Colorado'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 Warder Elementary School

Warder Elementary School's state test result (52.6% proficient) is higher than 1 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Warder Elementary School this school43222.5%52.6%
Rock Ridge Elementary School
CASTLE ROCK
44922.7%37.9%
Rockrimmon Elementary School
COLORADO SPRINGS
39023.6%62.2%
Flagstone Elementary School
CASTLE ROCK
49621.2%58.4%
Soda Creek Elementary School
STEAMBOAT SPRINGS
37921.1%61.3%
Louisville Elementary School
LOUISVILLE
44923.6%63.4%
Matched among Colorado 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 Warder Elementary School ranks

Among elementary schools
MeasureThis schoolIn ColoradoIn Jefferson County
State test proficiency
ranked highest first
52.6%#255 of 931#34 of 82
Math proficiency
ranked highest first
47.5%#294 of 940
▼ 58
#37 of 85
▼ 9
Reading proficiency
ranked highest first
54.1%#299 of 946
▲ 38
#41 of 85
▲ 4
Enrollment
ranked largest first
432#361 of 1,056#32 of 89
Students per teacher
ranked fewest first
16.7:1#633 of 896#56 of 86
Diversity index
ranked most diverse first
43.4%#602 of 896#44 of 86
Free and reduced lunch
ranked highest share first
22.5%#797 of 983#53 of 85
Enrollment change since 2017-18
ranked fastest growth first
+3.8%#159 of 200#19 of 21
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
432
+63 (+17%) vs 2020
-19% since 1990-91, when it was 533
Student : Teacher
16.7:1
was 20.5:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2543225.916.7:122% (97)
2023-2442722.918.6:128% (120)
2022-2337320.618.1:128% (103)
2020-213691820.5:128% (105)
2017-1841621.219.6:133% (136)
2015-164232021.1:133% (140)
2010-113431819.1:138% (129)
2000-014682320.4:115% (68)
1990-915332323.2:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Warder Elementary School.

Since 2017-18: students up 4% (416 to 432); teachers up 22% (21.2 to 25.9).

About Warder Elementary School

Warder Elementary School is a mid-sized elementary school with its address in ARVADA, Colorado. Federal data show 432 students enrolled in pre-K through 5 in 2024-25.

The 148 schools in Jefferson County School District No. R-1 enroll 74,935 students altogether, Warder Elementary School among them.

Federal enrollment data show Warder Elementary School is 72% White. Enrollment also includes 22% Hispanic and 5% multiracial. A diversity index of 43% means there is a 43% chance two randomly chosen students at Warder Elementary School are from different groups.

The school had 25.9 full-time-equivalent teachers in 2024-25. Its student-to-teacher ratio is 16.7:1. The ratio is within a point of the 16.6:1 average for elementary schools in Colorado. The eligibility rate for free or reduced-price meals is 22%. That is lower than the 32% average for public schools in Jefferson County.

Warder Elementary School holds a B allk12 Grade, placing it above 62% of Colorado public elementary schools.

On the allk12 BeatsExpectations measure, Warder Elementary School is within a point of the average proficiency rate across its state test results predicted for its free or reduced-price lunch share: 52.6% actual, 53.1% predicted. That is outside both the top and bottom 10% in Colorado.

Looking at the county, Jefferson County, the median household earns about $110,656 a year, 52% of adults hold a bachelor's degree or higher, and about 4% of people live in poverty. Jefferson County has 168 public schools with about 74,739 students, including Warder Elementary School.

Among nearby public schools, Weber Elementary School is closest at about 0.6 miles. In all, at least 8 other public schools sit within five miles of Warder Elementary School. On state test proficiency, Warder Elementary School ranks 3rd in a group of 8 nearby schools.

The NCES locale for Warder Elementary School is Suburb: Large, which covers schools in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

The school's enrollment increased 17% from 2020-21 to 2024-25. From 2020-21 to 2024-25, the ratio dropped from 20.5:1 to 16.7:1.

The discussion board for Warder Elementary School is open to topics like special education services, counseling, and support programs. Teachers and staff are welcome to share updates too.

Jefferson County at a glance

View full county profile
Population
579,377
Census ACS
Median income
$110,656
Household, ACS
Bachelor's+
52%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
168
74,739 students

Quick facts

School name
Warder Elementary School
District
Jefferson County School District No. R-1
Address
7840 CARR DRIVE, ARVADA, CO 80005
Phone
(303) 982-0950
County
Jefferson County
Level
Elementary
Grade range
PK–05
Total enrollment
432
Teachers (FTE)
26
Student–teacher ratio
16.7:1
Free and reduced lunch
97 (22%)
Locale
21-Suburb: Large
NCES ID
080480000796
Charter school
No
Virtual school
No

Related schools

Other schools in Jefferson County School District No. R-1
Other schools in ARVADA
Nearby schools

Frequently asked questions

About Warder Elementary School
What is the total enrollment at Warder Elementary School?
Warder Elementary School enrolls approximately 432 students in grades PK-05.
What age range does Warder Elementary School serve?
Warder Elementary School serves students from grade PK through grade 05.
How many students per teacher at Warder Elementary School?
Approximately 16.7:1 students per teacher at Warder Elementary School.
What is the student diversity at Warder Elementary School?
Student demographics at Warder Elementary School are roughly 72% White, 22% Hispanic, 0% Black, 0% Asian, 5% Two or more.
Who oversees Warder Elementary School?
Warder Elementary School is overseen by Jefferson County School District No. R-1 in Jefferson County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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