📊 Data: NCES CCD 2024–2025·🔄 Updated: August 2026·Editorial standards
📍 San Jose, CA · Santa Clara County

Union Elementary School District

Grades Kindergarten – 8th · 5,355 students · 8 schools

10
out of 10 Rating Excellent
State reading & math proficiency · 95th percentile among California districts. Ranked within California only — not comparable across states.
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School District · California
Union Elementary School District
📍 San Jose, CA · Santa Clara County · NCES LEAID 0640320
10/10
Rating
5,355
Students
8
Schools
Kindergarten – 8th
Grade Span

District Contact & Information

Source: NCES CCD 2024–25
📚
Grades Served
Kindergarten – 8th
📞
District Phone
🌐
District Website
📍
District Mailing Address
5175 Union Ave., San Jose, CA 95124
🎓
Enrollment
5,355 students
🏫
Schools
8
🏷
NCES District ID (LEAID)
0640320
🏛
District Type
Public School District

Schools in Union Elementary School District

8 schools listed
SchoolLevelGradesStudentsCity
Alta Vista ElementaryElementaryKindergarten – 5th584Los Gatos
Carlton ElementaryElementaryKindergarten – 5th656San Jose
Guadalupe ElementaryElementaryKindergarten – 5th537San Jose
Lietz ElementaryElementaryKindergarten – 5th501San Jose
Noddin ElementaryElementaryKindergarten – 5th500San Jose
Oster ElementaryElementaryKindergarten – 5th627San Jose
Dartmouth MiddleMiddle6th – 8th903San Jose
Union MiddleMiddle6th – 8th1,068San Jose

Frequently Asked Questions

What zip codes are in Union Elementary School District?
Union Elementary School District is a city district whose boundary does not contain the centre point of any zip code area, so we cannot list its zip codes from the national boundary data we use. Zip codes and district boundaries do not line up exactly in any case — confirm your address with the district office before relying on an assignment.
How is Union Elementary School District rated?
Union Elementary School District has an overall rating of 10 out of 10 (Excellent), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 95th percentile among California school districts. Ratings are percentile-ranked within California only and are not comparable across states.
How many students attend Union Elementary School District?
The NCES Common Core of Data directory reports enrollment of 5,355 students across 8 schools for Union Elementary School District.
What grades does Union Elementary School District serve?
Union Elementary School District is listed in the NCES directory as serving grades Kindergarten – 8th.
What schools are in Union Elementary School District?
NCES lists 8 schools operating under Union Elementary School District: 6 elementary, 2 middle. Each school's grade span, enrollment and city are listed on this page. Attendance zones are set by the district and a school on this list is not necessarily the one your address is assigned to.
How do I contact Union Elementary School District?
You can reach Union Elementary School District by phone at (408)377-8010 or online at www.unionsd.org or by mail at 5175 Union Ave., San Jose, CA 95124. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.

About Union Elementary School District

Union Elementary School District is a public school district in California, in Santa Clara County. It carries an overall rating of 10/10 (Excellent), the 95th percentile among California districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other California districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.

Schools in this district

NCES lists 8 schools operating under Union Elementary School District — 6 elementary and 2 middle. The largest by enrollment is Union Middle with 1,068 students. School-level enrollment comes from the NCES Common Core of Data school directory; a school with no reported enrollment is shown with a dash rather than a zero.

Checking your own address

District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your assignment with the district office at (408)377-8010 before making a housing decision.