school district · southwest san josé
Union School District: Schools, Boundaries & Homes
Every school in the Union School District (TK–8) in southwest San José, where students go for high school, and how to check an address. A Property Nerds® guide from the Boyenga Team at Compass.
grades
schools
serves
high school
Check an address with a Property NerdHomes for sale in San Jose
district map
schools on the map
Maps by Google. Pins show public schools in the area and may include schools in neighboring districts and private schools.
schools
Union SD schools
Union runs six TK–5 elementary schools and two middle schools. Seven schools have San José addresses; Alta Vista Elementary has a Los Gatos mailing address.
Elementary
- Alta Vista Elementary SchoolTK–5 · Los Gatos · map
- Carlton Elementary SchoolTK–5 · San Jose · map
- Guadalupe Elementary SchoolTK–5 · San Jose · map
- Lietz Elementary SchoolTK–5 · San Jose · map
- Noddin Elementary SchoolTK–5 · San Jose · map
- Oster Elementary SchoolTK–5 · San Jose · map
Middle
- Dartmouth Middle School6–8 · San Jose · map
- Union Middle School6–8 · San Jose · map
find your school
Which school goes with an address?
Use the Union school explorer for any address. Some homes with Los Gatos mailing addresses are in Union, not Los Gatos Union, which is exactly why the address check matters.
Open the district school locatorDistrict website
property nerd note
The school fields on a listing are typed in by the listing agent and are often blank or out of date. Always confirm with the district, in writing if it matters to your offer, and ask whether the school you want has room for new students.
high school
High school: mostly Campbell Union
Union students who live inside the Campbell Union High School District go on to Branham, Del Mar, Leigh, Prospect or Westmont High, assigned strictly by home address. Some addresses fall in other high school districts, so check with the CUHSD locator; the district calls it the only official source.
Campbell Union high schoolsCambrian schoolsLos Gatos Union schools
homes
Homes for sale in the Union SD area
Union homes are in southwest San José and part of the Los Gatos area. Search by city, then confirm the district for the address.
buying for schools?
Let the Property Nerds check the schools before you write an offer
Send us an address and we will confirm the assigned schools with the district, pull recent sales inside the same attendance area and flag anything that could change. The Boyenga Team at Compass has helped Silicon Valley families buy and sell since 1996, with more than 2,200 homes sold.
faq
Union SD FAQ
Which schools are in the Union School District?
Six TK–5 elementary schools (Alta Vista, Carlton, Guadalupe, Lietz, Noddin and Oster) and two middle schools (Dartmouth and Union Middle).
Is Union School District in Los Gatos?
Mostly southwest San José, but Alta Vista Elementary and some homes have Los Gatos mailing addresses. Check the address with the Union school explorer.
Where do Union students go to high school?
Students who live inside the Campbell Union High School District attend its high schools by home address. Check with the CUHSD locator.
Can the Boyenga Team help me buy in a specific school area?
Yes. Tell us the schools you want and we will set up alerts for homes in that attendance area, confirm assignments with the district and show you recent sales nearby. Call (408) 373-1660.
School names, grades and links come from the district and the California Department of Education, checked October 2026. This guide does not include ratings or test scores; see the California School Dashboard for official performance data.
