How does Del Sur Senior Elementary compare to other elementary schools in Lancaster?

Del Sur Senior Elementary has a SchoolScope composite score of 36.4/100, placing it at the 27th percentile statewide. 8% of students exceed standard, with a total of 2,266 students tested across grades and subjects.

What percentage of students exceed standards at Del Sur Senior Elementary?

7.7% of students at Del Sur Senior Elementary exceed the state standard on CAASPP assessments, while 27.3% meet or exceed it. The gap between these two numbers reveals whether the school pushes students beyond basic proficiency.

Is Del Sur Senior Elementary improving or declining?

Del Sur Senior Elementary's proficiency rate increases by 6.0 percentage points from grade 3 to grade 5, suggesting the school is adding value over time.

What is the chronic absenteeism rate at Del Sur Senior Elementary?

24.1% of students at Del Sur Senior Elementary are chronically absent (missing 10% or more of school days). This metric reflects school culture and family engagement, and is weighted at 15% in our composite score.

Del Sur Senior Elementary

Westside Union Elementary Lancaster Los Angeles County 93536

Composite Score

out of 100

State Percentile

of elementary schools

State Rank

2,266 students tested

School overview

Enrollment

758 students

Student-Teacher Ratio

27:1

Free/Reduced Lunch

56%

Teachers

28 full-time

Student demographics

Hispanic 55.4%

White 29.8%

Asian 0.5%

Black 8.8%

Other 5.4%

Performance breakdown

Performance breakdown for Del Sur Senior Elementary
Category	Percentage
Exceeded Standard	7.7%
Met Standard	19.6%
Below Standard	72.7%

Exceeded

7.7%

Met

19.6%

Below

72.7%

What other rankings don't show you

Most rating sites report "27% proficient" for Del Sur Senior Elementary and stop there. Here's what that number hides:

7.7% of students exceeded standard while 19.6% merely met it. That exceeded rate is 13.2 points below the state average of 21.0%. That's 9.6 points below the Westside Union Elementary district average of 17.4%. The gap between "met" and "exceeded" is the difference between a school that clears the bar and one that raises it.

Students here improve by 6.0 percentage points from grade 3 to grade 5, suggesting the school is adding value beyond what students arrive with.

Chronic absenteeism is 24.1%, above the state average of 18.7%.

Key metrics

% Exceeded Standard

7.7%

Students scoring above proficient

% Met or Above

27.3%

Students meeting standard

Growth (G3→G5)

+6.0pp

Change in proficiency rate

Chronic Absenteeism

24.1%

Students missing 10%+ of days

Suspension Rate

5.4%

Students suspended at least once

Total Tested

2,266

Across all grades & subjects

ELA scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
3rd	73	8.2%	19.2%	21.9%	50.7%	27.4%
4th	61	6.6%	22.9%	29.5%	41.0%	29.5%
5th	67	9.0%	35.8%	20.9%	34.3%	44.8%
6th	78	6.4%	16.7%	26.9%	50.0%	23.1%
7th	132	9.1%	18.2%	30.3%	42.4%	27.3%
8th	155	12.3%	34.2%	34.8%	18.7%	46.5%

Math scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
3rd	73	9.6%	17.8%	30.1%	42.5%	27.4%
4th	61	4.9%	18.0%	41.0%	36.1%	22.9%
5th	68	5.9%	16.2%	20.6%	57.4%	22.1%
6th	78	9.0%	9.0%	25.6%	56.4%	17.9%
7th	132	4.5%	9.8%	22.0%	63.6%	14.4%
8th	155	7.1%	16.8%	23.2%	52.9%	23.9%

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