ZIP Code 95023 · Hollister, California
San Benito County · 17,624 counted · 6 districts
Each percentage here is a share of the 17,624 homes counted in ZIP Code 95023, 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 95023, Hollister, California are not the districts named for high school, and the set changes in both directions: 1 district arrives for high school only, 4 run the early grades and stop, and 1 serves both bands. 6 districts hold the 17,624 homes counted here between them, and San Benito High is the largest by homes. The largest share is high enough that one name is right for most of the homes counted and wrong for the other 196: 132 homes with Aromas-San Juan Unified and 64 homes in districts too small to name here.
The early grades are divided many ways
5 districts hold a measurable share of ZIP Code 95023 at this level. Hollister is the largest with 15,255 homes; the smallest of them holds 132 homes. Hollister, North County Joint Union Elementary, Southside Elementary and one more district are named here for grade school and not for high school.
Every track below is 35 cells long and stands for all 17,624 homes counted in ZIP Code 95023, so one cell is 504 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.
- Hollister School District15,255 of 17,624 homes87%
- North County Joint Union Elementary School District1,239 of 17,624 homes7.0%
- Southside Elementary School District735 of 17,624 homes4.2%
- Tres Pinos Union Elementary School District135 of 17,624 homes0.8%
- Aromas-San Juan Unified School District132 of 17,624 homes0.7%
Below half a percent at the grade school level: Cienega Union Elementary School District and Gilroy Unified School District hold 128 homes between them, which is why they are counted under the list rather than inside it. A lookup that named them alongside the districts above would be listing a boundary crossing rather than an answer.
Morgan Hill Unified School District reaches into ZIP Code 95023 at the grade school level as well and holds no home counted in it: the boundary crosses the postal area without picking up a single one.
High school is split between two districts
2 districts hold a measurable share of ZIP Code 95023 at this level. San Benito High is the largest with 17,428 homes; the smallest of them holds 132 homes. San Benito High is named here for high school and not for the early grades.
- San Benito High School District17,428 of 17,624 homes99%
- Aromas-San Juan Unified School District132 of 17,624 homes0.7%
Below half a percent at the high school level: Gilroy Unified School District holds 64 homes, which is why it is counted under the list rather than inside it. A lookup that named it alongside the districts above would be listing a boundary crossing rather than an answer.
Morgan Hill Unified School District reaches into ZIP Code 95023 at the high school level as well and holds no home counted in it: the boundary crosses the postal area without picking up a single one.
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:
- San Benito High School District NCES ID 0634140 sbhsd.k12.ca.us (831) 637-5831
- Hollister School District NCES ID 0617340 hesd.org (831) 630-6300
- North County Joint Union Elementary School District NCES ID 0627480 ncjusd.k12.ca.us (831) 637-5574
- Southside Elementary School District NCES ID 0637650 ssesd.org (831) 637-4439
- Tres Pinos Union Elementary School District NCES ID 0639690 sbcoe.k12.ca.us/tres.pinos.html (831) 637-0503
- Aromas-San Juan Unified School District NCES ID 0691136 asjusd.org (831) 623-4500
The set of names changes in both directions
San Benito High is named for high school here and for no elementary grades, and Hollister, North County Joint Union Elementary, Southside Elementary and one more district run 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 95023
A lookup that answers ZIP Code 95023 with one district name has to pick one of the names below and drop the rest. Measured against the 17,624 homes counted here, for the early grades it is wrong for 2,369 homes and for high school it is wrong for 196 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 95023
The districts named above are not alike in size or in reach. San Benito High touches 4 ZIP Code areas in all and holds 17,428 homes inside this one; Hollister touches 1 area. Aromas-San Juan Unified is the only district in at least one ZIP Code area somewhere in the country, while San Benito High is never the only one anywhere: every postal area it touches, it shares.
- San Benito High School District17,428 of 17,624 here · 4 ZIP areas in all
- Hollister School District15,255 of 17,624 here · 1 ZIP area in all
- North County Joint Union Elementary School District1,239 of 17,624 here · 1 ZIP area in all
- Southside Elementary School District735 of 17,624 here · 1 ZIP area in all
- Tres Pinos Union Elementary School District135 of 17,624 here · 3 ZIP areas in all
- Aromas-San Juan Unified School District132 of 17,624 here · 4 ZIP areas in all
Where Hollister goes from here
Hollister School District runs kindergarten through grade 8, and it shares the one ZIP Code area it touches with neighbors. Inside its own boundary it holds 15,255 homes over 36 square miles; the part of it counted in ZIP Code 95023 is 15,255 of those. The district it shares the most postal ground with is North County Joint Union Elementary School District, across 1 ZIP Code area.
How 95023 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, 36 areas in California name more than this ZIP Code does and 1,718 name fewer. Nationally more than one district is named in 53% of 33,555 areas.
Look up 95023 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 95023 recomputes the same 17,624 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: 196 of the 17,624 homes counted in 95023 sit outside the district holding the most of them, and the line between the two 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.