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ZIP Code 95123 · San Jose, California

Santa Clara County · 24,996 counted · 3 districts

Grade schoolOak Grove Elementary School District74%18,494 of 24,996 homes
High schoolEast Side Union High School District74%18,494 of 24,996 homes

Each percentage here is a share of the 24,996 homes counted in ZIP Code 95123, not the chance that any one address is in that district. Enrollment follows the street: two houses on opposite sides of the same road can be in different districts, and only the district office can say which.

The districts named for the early grades in ZIP Code 95123, San Jose, California are not the districts named for high school, and the set changes in both directions: 1 district arrives for high school only, 1 runs the early grades and stops, and 1 serves both bands. 3 districts hold the 24,996 homes counted here between them, and East Side Union High and Oak Grove Elementary hold the most of them, 18,494 homes each. The largest share leaves 6,502 homes elsewhere: 6,502 homes with San Jose Unified. The area sits in Santa Clara County, California.

The early grades are split between two districts

2 districts hold a measurable share of ZIP Code 95123 at this level. Oak Grove Elementary is the largest with 18,494 homes; the smallest of them holds 6,502 homes. Oak Grove Elementary is named here for grade school and not for high school.

Every track below is 35 cells long and stands for all 24,996 homes counted in ZIP Code 95123, so one cell is 714 homes, rounded to the nearest whole cell. Cells lit solid are the homes one district holds, and the unlit cells are the homes held by the other districts in the same list.

  • Oak Grove Elementary School District18,494 of 24,996 homes74%
  • San Jose Unified School District6,502 of 24,996 homes26%

High school is split between two districts

2 districts hold a measurable share of ZIP Code 95123 at this level. East Side Union High is the largest with 18,494 homes; the smallest of them holds 6,502 homes. East Side Union High is named here for high school and not for the early grades.

  • East Side Union High School District18,494 of 24,996 homes74%
  • San Jose Unified School District6,502 of 24,996 homes26%

Have a street address?

A ZIP Code names every district that can serve the area; a street address settles which one serves a home. The Census Bureau geocoder takes an exact address and returns its school districts from the current boundary files, free and with no account.

Check an exact address with the Census Geocoder

Then confirm it with the district office. Each district named here, with its NCES district ID, website and phone:

  • East Side Union High School District NCES ID 0611820 esuhsd.org (408) 347-5000
  • Oak Grove Elementary School District NCES ID 0627810 ogsd.net (408) 227-8300
  • San Jose Unified School District NCES ID 0634590 sjusd.org (408) 535-6000

The set of names changes in both directions

East Side Union High is named for high school here and for no elementary grades, and Oak Grove Elementary runs the early grades and no more. An address on the wrong street can therefore change district at the change of grade and land in a district that was never part of its elementary answer, while a neighbor two blocks away keeps one name the whole way through.

What one district name costs in 95123

A lookup that answers ZIP Code 95123 with one district name has to pick one of the names below and drop the rest. Measured against the 24,996 homes counted here, for the early grades it is wrong for 6,502 homes and for high school it is wrong for 6,502 homes. That is the whole difference between this page and a one-line answer: the same federal file, read to the end instead of to the first row.

The districts that reach into 95123

The districts named above are not alike in size or in reach. East Side Union High touches 22 ZIP Code areas in all and holds 18,494 homes inside this one; Oak Grove Elementary touches 7 areas. San Jose Unified is the only district in at least one ZIP Code area somewhere in the country, while East Side Union High is never the only one anywhere: every postal area it touches, it shares. 1 of them has a page here listing every ZIP Code area it reaches.

Where Oak Grove Elementary goes from here

Oak Grove Elementary School District runs kindergarten through grade 8, and it shares 6 of the 7 ZIP Code areas it touches with neighbors, holds under half a percent of the homes in the remaining 1, and is the only district in none of them. Inside its own boundary it holds 37,193 homes over 21 square miles; the part of it counted in ZIP Code 95123 is 18,494 of those. The district it shares the most postal ground with is East Side Union High School District, across 6 ZIP Code areas. Its thinnest measured foothold is elsewhere: in ZIP Code area 95013 it holds 3 of 25 homes.

How 95123 compares in California

Across California the boundary file names more than one district in 996 of the 1,788 ZIP Code areas it names a district for, 56% of them, and 3 areas in the state have no high school district named for part of their homes. Counting the districts named at either level, 299 areas in California name more than this ZIP Code does and 1,208 name fewer. Nationally more than one district is named in 53% of 33,555 areas.

Look up 95123 again, or look up another ZIP Code

The lookup holds every ZIP Code area in the country with homes in it, including the ones with no page of their own. Opening it at 95123 recomputes the same 24,996 homes from the same snapshot, and typing five other digits answers for somewhere else. No server is asked for the answer: the whole index travels with the lookup page itself.

What to do next

Ask the district office to confirm your street address: look on its site for a school locator, a find my school tool or an attendance zone map, or call the office.

A ZIP Code is a set of mail delivery routes, not a boundary: 6,502 of the 24,996 homes counted in 95123 sit outside each of the 2 districts tied for the most of them, and the line runs along streets rather than around the postal area.

District websites and phone numbers here come from the NCES Common Core of Data directory, 2024-25 school year, filed under the same district ID as the Census boundary files. Where it lists no usable website, none is printed rather than guessed.

What this site can hand you instead:

If a house purchase depends on the answer, ask the district itself for written confirmation of that exact address. A listing is not a district record, and neither is this page.

Where these numbers come from

The homes were counted in the 2020 Census and the district lines are the 2026 boundary file, so a fast-growing area may have changed since; ZIP Codes here are the Census Bureau's ZIP Code Tabulation Areas; a share is a share of homes, not the chance that one address is in a district; and a district is not a school attendance zone. Every source, file and caveat is on the method page.