San Diego City Unified School District
California · runs kindergarten through grade 12
NCES ID 0634320 · sandiegounified.org · (619) 725-5506
San Diego City Unified spreads across 49 ZIP Code areas — enough that no single postal code describes it. It is the only district in 31 of them and shares 6 more; in the remaining 12 it holds under half a percent of the homes. In total it covers 440,728 homes over 203 square miles.
A district wide enough to cross many ZIP Codes
At 2,166 homes to the square mile this is city territory, and district lines in a city follow streets. San Diego City Unified covers 203 square miles in all — small enough that a single ZIP Code area can hold most of it, and several ZIP Codes can cut across it.
- Homes inside the boundary440,728
- Residents1,067,608
- ZIP Code areas it reaches49
- Where it is the only district31
- Where it shares with another district6
- Where it holds under half a percent12
- Land area203 square miles
- Homes per square mile2,166
The ZIP Code areas it reaches
The spread is the thing to notice. In 92101 this district holds 100% of the homes; in 92161 it holds no homes at all. Same district, opposite answers, and a lookup that names it without the share tells the second household the same thing as the first.
- ZIP Code 92101 · San Diego, California100% of the homes
- ZIP Code 92109 · San Diego, California100% of the homes
- ZIP Code 92126 · San Diego, California100% of the homes
- ZIP Code 92104 · San Diego, California100% of the homes
- ZIP Code 92122 · San Diego, California100% of the homes
- ZIP Code 92105 · San Diego, California100% of the homes
- ZIP Code 92117 · San Diego, California100% of the homes
- ZIP Code 92103 · San Diego, California100% of the homes
- ZIP Code 92037 · San Diego, California100% of the homes
- ZIP Code 92111 · San Diego, California100% of the homes
- ZIP Code 92116 · San Diego, California100% of the homes
- ZIP Code 92102 · San Diego, California100% of the homes
- ZIP Code 92107 · San Diego, California100% of the homes
- ZIP Code 92108 · San Diego, California100% of the homes
- ZIP Code 92113 · San Diego, California100% of the homes
- ZIP Code 92120 · San Diego, California100% of the homes
- ZIP Code 92110 · San Diego, California100% of the homes
- ZIP Code 92123 · San Diego, California100% of the homes
- ZIP Code 92124 · San Diego, California100% of the homes
- ZIP Code 92139 · San Diego, California100% of the homes
- ZIP Code 92119 · San Diego, California100% of the homes
- ZIP Code 92106 · San Diego, California100% of the homes
- ZIP Code 92136 · San Diego, California100% of the homes
- ZIP Code 92093 · San Diego, California100% of the homes
- ZIP Code 92140 · San Diego, California22 of 22 homes
- ZIP Code 92092 · San Diego, California14 of 14 homes
- ZIP Code 92134 · San Diego, California7 of 7 homes
- ZIP Code 92145 · San Diego, California6 of 6 homes
- ZIP Code 92147 · San Diego, California4 of 4 homes
- ZIP Code 92182 · San Diego, California2 of 2 homes
- ZIP Code 92121 · San Diego, California100% of the homes
- ZIP Code 92115 · San Diego, California96% of the homes
- ZIP Code 92114 · San Diego, California94% of the homes
- ZIP Code 92131 · San Diego, California93% of the homes
- ZIP Code 92118 · Coronado, California7.0% of the homes
- ZIP Code 92129 · San Diego, California4.7% of the homes
- ZIP Code 91977 · La Presa, California3.0% of the homes
- ZIP Code 91932 · Imperial Beach, California42 homes, under half a percent
- ZIP Code 91942 · La Mesa, California17 homes, under half a percent
- ZIP Code 91902 · Bonita, Californiano homes at all
- ZIP Code 91945 · Lemon Grove, Californiano homes at all
- ZIP Code 91950 · National City, Californiano homes at all
- ZIP Code 92064 · Poway, Californiano homes at all
- ZIP Code 92071 · Santee, Californiano homes at all
- ZIP Code 92128 · San Diego, Californiano homes at all
- ZIP Code 92130 · San Diego, Californiano homes at all
- ZIP Code 92132 · San Diego, Californiano homes at all
- ZIP Code 92155 · Coronado, Californiano homes at all
- ZIP Code 92161 · San Diego, Californiano homes at all
What an answer of one district name misses here
San Diego City Unified is the largest district in 34 ZIP Code areas. Answer with its name alone and the answer misses 2,895 of the 441,475 homes those areas hold — though in 30 of them it holds every home there is. The count is homes, not addresses, and it is the number no lookup prints.
San Diego City Unified holds 17,259 of the 18,347 homes in ZIP Code 92114 · San Diego, California, so its name is right for most of the area and wrong for the rest: 1,047 homes with Lemon Grove Elementary and La Mesa-Spring Valley; 41 homes in a district too small to name here.
In ZIP Code 92131 · San Diego, California the split runs 12,222 to 946 and the larger part is San Diego City Unified's: the rest is 946 homes with Poway Unified.
ZIP Code 92121 · San Diego, California is a two-district area: 1,877 of its 1,878 homes are inside San Diego City Unified, and the other 1 home is in a district too small to name here. Which one an address belongs to is settled by the street, not by the five digits.
In ZIP Code 92037 · San Diego, California the single-name answer is the true one: San Diego City Unified holds all 20,098 homes counted there, and no other district holds a share worth naming.
ZIP Code 92092 · San Diego, California is another area where one name covers everything — 14 homes, all of them inside San Diego City Unified.
San Diego City Unified is not the name anyone would give for ZIP Code 92129 · San Diego, California — Poway Unified leads it — and San Diego City Unified holds 839 homes there all the same. Answer that area with one name and that is what it is wrong about.
ZIP Code 92118 · Coronado, California is another area where San Diego City Unified is present without being the answer: 667 of its 9,569 homes, behind Coronado Unified.
Who takes the other homes in its ZIP Codes
San Diego City Unified runs kindergarten through grade 12 itself, so an address it holds sees no change of authority between grade school and high school. The districts listed below are the ones that take the other homes in the ZIP Code areas it shares — Grossmont Union High, Poway Unified and La Mesa-Spring Valley. They are neighbors on the same postal ground, not the next stop for its own students.
- Grossmont Union High School District69,887 homes in 6 shared ZIP Code areas
- Poway Unified School District56,380 homes in 5 shared ZIP Code areas
- La Mesa-Spring Valley School District37,027 homes in 4 shared ZIP Code areas
- Sweetwater Union High School District34,450 homes in 4 shared ZIP Code areas
- San Dieguito Union High School District22,478 homes in 1 shared ZIP Code area
- Santee School District21,871 homes in 1 shared ZIP Code area
Who it shares ZIP Codes with
San Diego City Unified shares ZIP Code areas with 7 different districts. The most frequent are Grossmont Union High, La Mesa-Spring Valley, Lemon Grove Elementary and Poway Unified. In a neighborhood this crowded the question is not which district serves the ZIP Code but which side of which street an address is on.
- Grossmont Union High School District3 shared ZIP areas
- La Mesa-Spring Valley School District2 shared ZIP areas
- Lemon Grove Elementary School District2 shared ZIP areas
- Poway Unified School District2 shared ZIP areas
- Chula Vista Elementary School District1 shared ZIP area
- Coronado Unified School District1 shared ZIP area
San Diego City Unified and Grossmont Union High school district boundary: the ZIP Codes they share
- ZIP Code 91977 · La Presa, California
- ZIP Code 92114 · San Diego, California
- ZIP Code 92115 · San Diego, California
San Diego City Unified and La Mesa-Spring Valley school district boundary: the ZIP Codes they share
- ZIP Code 91977 · La Presa, California
- ZIP Code 92114 · San Diego, California
San Diego City Unified and Lemon Grove Elementary school district boundary: the ZIP Codes they share
- ZIP Code 92114 · San Diego, California
- ZIP Code 92115 · San Diego, California
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.
Where this district sits
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: in 6 of the 49 ZIP Code areas San Diego City Unified reaches, at least one other district holds a real share of the homes as well, and the line between them runs along streets. Only the district can say which side of that line an address is on.
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.
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.