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SCHOOL COMMUNITY·OAKLEY UNION ELEMENTARY·NCES 062808008689

Delta Vista Middle

4901 Frank Hengel Way, Oakley, CA 94561 · (925) 625-6840 · Contra Costa County
GRADES 06–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL873 STUDENTS
Enrollment
873
Middle
DISTRICT 865 · STATE 659
Student : Teacher
21.6:1
40 FTE teachers
DISTRICT 22.2:1 · STATE 20.7:1
Free / Reduced Lunch
44%
383 students
DISTRICT 44% · STATE 65%
Community
2
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 6
268
Grade 7
309
Grade 8
296
Student demographics
White
21224%
DISTRICT 25% · STATE 20%
Hispanic
37042%
DISTRICT 47% · STATE 56%
Black
12414%
DISTRICT 10% · STATE 5%
Asian
11613%
DISTRICT 11% · STATE 12%
Two+
354%
DISTRICT 6% · STATE 6%
Native American
30%
DISTRICT 0% · STATE 0%
Pacific Islander
131%
DISTRICT 1% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
46353%
Female
41047%

Discussions

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Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
34.1%
CA avg 47.1% . +1.1pp since 2014
Math
16.4%
CA avg 35.6% . -4.6pp since 2014
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
25.3%
composite math + reading, all grades
Predicted
53.4%
based on CA schools with similar FRL share
Beats by
-28.1pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
873
+20 (+2%) vs 2017
Student : Teacher
21.6:1
was 25.0:1
% White
24%
was 31%
% Hispanic
42%
was 43%
% Black
14%
was 13%
% Asian
13%
was 7%
Source: NCES Common Core of Data

About Delta Vista Middle

Delta Vista Middle is a middle-grades school of medium-sized scale in Oakley, California, operated by Oakley Union Elementary, enrolling 873 students in grades 6 through 8. Enrollment runs roughly 32% larger than the state mean of about 659.

Oakley Union Elementary runs 9 schools in total, collectively educating 5,119 students. Delta Vista Middle is one of those campuses.

In terms of who attends, Delta Vista Middle records that 42% of students identify as Hispanic, with the remaining enrollment distributed across several groups. Beyond that, the school shows 24% White, 14% Black, 13% Asian, 4% multiracial. The wider county runs roughly 28% Hispanic, putting the school's mix visibly more Hispanic than the area baseline.

Looking at the economic backdrop, On paper, Delta Vista Middle has 40 full-time-equivalent teachers, translating to a class-load average of around 21.6:1. That figure is higher than the state norm's 20.7:1 average. Roughly 44% of students at Delta Vista Middle qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

After controlling for student poverty, Delta Vista Middle falls in the UNDERPERFORMING tier of the BeatsExpectations residual. Given its student profile, a typical campus would land near 53.4%; this one comes in at 25.3%, -28.1 points off the demographic line.

Around the school, Contra Costa County reports that median household earnings sit near $127,229, roughly 45% of adults have completed at least a four-year degree, and the poverty rate sits near 6%. Delta Vista Middle is one of 280 public schools in Contra Costa County (combined enrollment of about 167,423 students).

Iron House Elementary is the nearest neighboring public school, about 0.1 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Delta Vista Middle. Ranking that nearby cluster on reported proficiency puts Delta Vista Middle at 8th of 9; the average score across the group is 35.4%.

The school occupies a commuter-belt site.

Trend over the last 7 years. Over the past 7-year window, the student count held roughly steady: 853 students in 2018 compared to 873 in 2025. Over the same period, the Asian share expanded from 7% to 13%. Class-load math has fell: from 25.0:1 in 2018 to 21.6:1 in 2025.

On the community side, members of the Delta Vista Middle community share and discuss school events, parent volunteer needs, and clubs. Members of the school community can share what they know.

Contra Costa County at a glance

View full county profile
Population
1,165,012
Census ACS
Median income
$127,229
Household, ACS
Bachelor's+
45%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
280
167,423 students

Quick facts

School name
Delta Vista Middle
District
Oakley Union Elementary
Address
4901 Frank Hengel Way, Oakley, CA 94561
Phone
(925) 625-6840
County
Contra Costa County
Level
Middle
Grade range
06–08
Total enrollment
873
Teachers (FTE)
40
Student–teacher ratio
21.6:1
Free/Reduced lunch
383 (44%)
Locale
21-Suburb: Large
NCES ID
062808008689
Charter school
No
Virtual school
No

Related schools

Other schools in Oakley Union Elementary
Other schools in Oakley
Nearby schools

Frequently asked questions

About Delta Vista Middle
How many students attend Delta Vista Middle?
Delta Vista Middle enrolls approximately 873 students in grades 06-08.
What age range does Delta Vista Middle serve?
Delta Vista Middle serves students from grade 06 through grade 08.
What is the student-teacher ratio at Delta Vista Middle?
The student-to-teacher ratio at Delta Vista Middle is approximately 21.6:1 (40 FTE teachers).
What is the student diversity at Delta Vista Middle?
Student demographics at Delta Vista Middle are roughly 24% White, 42% Hispanic, 14% Black, 13% Asian, 4% Two or more.
What district is Delta Vista Middle in?
Delta Vista Middle is part of Oakley Union Elementary.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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