Byron Union Elementary

Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. District totals are aggregated directly from the schools reporting under this district in the source records. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error. Data current as of August 2026.

Byron, California - 4 schools

An equity score of 35/100 ranks Byron Union Elementary #1122 of 1526 districts in California (state average 50). Derived live from how evenly resources are distributed across the district's schools.

At $15,732 per pupil, Byron Union Elementary ranks #1236 of 1880 California districts by per-pupil spending (California districts). NCES F-33 finance data.

1,230
Total Enrollment
4
Schools
$15,732
Per-Pupil Spending
Elementary, Middle
School Types

District-Level NCES Analysis

Byron Union Elementary operates 4 public schools serving 1,230 students, placing it among the smallest districts in California. The school portfolio breaks down into 3 elementary, 1 middle schools, a small enough portfolio that most families will interact with nearly every campus in the district at some point. These enrollment and school figures come from the NCES Common Core of Data (CCD) 2024-25 release, and the district is based in Contra Costa County.

Per-pupil expenditure runs $15,732 according to the NCES F-33 School District Finance Survey, in the lower half of 1880 California districts by per-pupil spending. See how California compares in our national per-pupil spending analysis. The funding mix is 38.1% local, 51.1% state, and 10.8% federal, a state-revenue-heavy mix that insulates the district somewhat from local property-tax volatility, though it ties funding to state budget cycles. The district's equity score is 35/100, ranked #1122 of 1526 in California against a state average of 50, notably less even than the typical district in the state for how evenly funding reaches its schools.

a 823.3:1 student-counselor ratio, above both the ASCA benchmark and the roughly 408:1 national average, and 40.3% chronic absenteeism from the 2021-22 Civil Rights Data Collection. Demographically, the student body averages 38.8% White, 35.4% Hispanic or Latino, 7.6% African American across the district's schools. Its most demographically mixed campus is Byron Institute for Independent Study, with a diversity index of 74.2/100.

Its largest campus is Discovery Bay Elementary, enrolling 417 students (35% of the district's total enrollment). Its smallest is Byron Institute for Independent Study, at 26 students, a 16x enrollment spread across the district's campuses.

Discovery Bay Elementary accounts for 33.9% of all Byron Union Elementary student enrollment

That dominant concentration means Byron Union Elementary-wide averages can mask substantial variation outside the largest entity. Grade band: elementary. The share measures enrollment concentration only; it does not establish how the district allocates programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.

Source: NCES Common Core of Data

Byron Union Elementary school enrollment varies 16× across entities

Byron Union Elementary school enrollment ranges from 26 students (lowest) to 417 students (highest), a spread of 391 students. That spread reflects typical mixed-portfolio variation between specialty programs and large neighbourhood schools. Per-school staffing ratios, programme availability, and capital-renovation cycles often diverge inside the same district based on enrollment shape.

Source: NCES Common Core of Data

Byron Union Elementary student-counselor ratio is 823:1 — well above typical (typically associated with unusually large scale or acute resource constraints)

student-counselor ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE counselors against total enrollment, districts that contract intervention or social-emotional staff outside the counselor classification may be under-counted Values this far above typical often signal acute resource constraints or a structurally different scale than most peers — worth reading alongside the underlying counts, not the ratio alone.

Source: NCES Civil Rights Data Collection

Byron Union Elementary chronic absenteeism rate is 40.3% — high (typically associated with higher-than-average disruption; recent CRDC data showed elevated rates persisting after pandemic-era schooling changes)

chronic absenteeism rate is the simplest comparative metric but it does not capture the full picture: a student is chronically absent if they miss ≥10% of enrolled days for any reason, illness, family obligations, or disengagement Higher values may reflect larger urban scale or recent resource constraints that have widened the gap.

Source: NCES Civil Rights Data Collection 2021-22

Where does the funding come from?

10.8%
Federal
51.1%
State
38.1%
Local

Funding Equity

35
Equity Score
1122 / 1526
State Rank
50
State Average

This district scores below average on funding equity. High reliance on local revenue or lower spending may contribute.

Student Demographics

Average demographic composition across 4 schools in Byron Union Elementary.

White 38.8%
Hispanic or Latino 35.4%
African American 7.6%
Asian 6.5%
Multiracial 9.2%
Other 2.5%

Source: NCES CCD School Membership 2024-25.

Student-body diversity

Average diversity index 69.4/100

Average Simpson diversity index across Byron Union Elementary's schools, above the California average of 46.0.

Most mixed schools

  1. 1 Byron Institute for Independent Study 74.2
  2. 2 Timber Point Elementary 69.0
  3. 3 Excelsior Middle 67.9
  4. 4 Discovery Bay Elementary 66.4

Programs & Resources

823.3:1
Student-Counselor Ratio
40.3%
Chronically Absent

Source: NCES Civil Rights Data Collection (CRDC) 2021-22.

Schools in Byron Union Elementary

School Enrollment
Discovery Bay Elementary
417
Excelsior Middle
377
Timber Point Elementary
362
Byron Institute for Independent Study
26

How Byron Union Elementary Compares to Similar-Size Districts

The California districts closest to this one in total enrollment.

District Enrollment Spending Funding Mix
Wilsona Elementary Similar size Higher spending Less locally funded
Kingsburg Joint Union High Similar size Similar spending Similar funding mix
John Swett Unified Similar size Higher spending More locally funded
Healdsburg Unified Similar size Higher spending More locally funded
John Adams Academy - El Dorado Hills District Similar size Lower spending Similar funding mix

Comparisons are relative to Byron Union Elementary's own figures; each column derives from NCES Common Core of Data and the F-33 Finance Survey.

Nearby Districts in California

Top districts in the same state, compare side-by-side for enrollment, spending, and demographics.

Los Angeles Unified
427,795 students · 785 schools · $22,606/pupil
Compare vs Byron Union Elementary →
San Diego Unified
93,893 students · 175 schools · $20,783/pupil
Compare vs Byron Union Elementary →
Fresno Unified
69,668 students · 101 schools · $20,909/pupil
Compare vs Byron Union Elementary →
Long Beach Unified
65,554 students · 84 schools · $18,419/pupil
Compare vs Byron Union Elementary →
Elk Grove Unified
62,061 students · 67 schools · $15,921/pupil
Compare vs Byron Union Elementary →

Nationwide districts with similar enrollment or spending

Out-of-state peers matched by enrollment and by per-pupil expenditure, not the same-state lists above.

Compare Byron Union Elementary

See how this district compares to others in enrollment, spending, demographics, and academic resources.

Compare vs Los Angeles Unified →

Frequently Asked Questions

How many schools are in Byron Union Elementary?

Byron Union Elementary has 4 schools, including 3 elementary, 1 middle. Total enrollment is 1,230 students.

How much does Byron Union Elementary spend per student?

Byron Union Elementary spends $15,732 per student. The district has an equity score of 35/100, ranking #1122 in California.

What is the demographic composition of Byron Union Elementary?

Byron Union Elementary students are 38.8% White, 35.4% Hispanic or Latino, 7.6% African American, 6.5% Asian, averaged across 4 schools. Source: NCES CCD Membership 2024-25.

What is the equity score for Byron Union Elementary?

Byron Union Elementary has an equity score of 35/100, ranking #1122 out of 1526 districts in California.