Shasta Union High School District

It never has a ZIP Code to itself

Shasta Union High covers 1,820 square miles, and the ZIP Code areas inside it are small by comparison. Its 44,958 homes are spread thinly enough that the postal map and the school map have little reason to agree anywhere.

• Homes inside the boundary44,958
• Residents103,604
• ZIP Code areas it reaches24
• Where it is the only district0
• Where it shares with another district17
• Where it holds under half a percent7
• Land area1,820 square miles
• Homes per square mile25

The ZIP Code areas it reaches

The spread is the thing to notice. In 96069 this district holds 100% of the homes; in 96075 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 96069 · Oak Run, California100% of the homes
• ZIP Code 96008 · Bella Vista, California100% of the homes
• ZIP Code 96062 · Millville, California100% of the homes
• ZIP Code 96096 · Whitmore, California100% of the homes
• ZIP Code 96084 · Round Mountain, California100% of the homes
• ZIP Code 96087 · Shasta, California100% of the homes
• ZIP Code 96033 · French Gulch, California100% of the homes
• ZIP Code 96011 · Big Bend, California100% of the homes
• ZIP Code 96001 · Redding, California99% of the homes
• ZIP Code 96073 · Palo Cedro, California99% of the homes
• ZIP Code 96088 · Shingletown, California96% of the homes
• ZIP Code 96065 · Montgomery Creek, California96% of the homes
• ZIP Code 96047 · Ono, California92% of the homes
• ZIP Code 96002 · Redding, California76% of the homes
• ZIP Code 96003 · Redding, California59% of the homes
• ZIP Code 96076 · Platina, California28% of the homes
• ZIP Code 96007 · Happy Valley, California2.6% of the homes
• ZIP Code 96013 · Burney, California1 home, under half a percent
• ZIP Code 96019 · Shasta Lake, Californiano homes at all
• ZIP Code 96022 · Cottonwood, Californiano homes at all
• ZIP Code 96051 · Lakehead, Californiano homes at all
• ZIP Code 96059 · Manton, Californiano homes at all
• ZIP Code 96071 · Old Station, Californiano homes at all
• ZIP Code 96075 · Paynes Creek, Californiano homes at all

What one name misses, and what changes later

Shasta Union High is the largest district in 9 ZIP Code areas. Answer with its name alone and the answer misses 11,729 of the 52,395 homes those areas hold — though in 5 of them it holds every home there is. The count is homes, not addresses, and it is the number no lookup prints.

ZIP Code 96003 · Redding, California is a two-district area: 11,795 of its 19,960 homes are inside Shasta Union High, and the other 8,165 homes are with Gateway Unified. Which one an address belongs to is settled by the street, not by the five digits.

In ZIP Code 96002 · Redding, California the split runs 10,582 to 3,409 and the larger part is Shasta Union High's: the rest is 3,409 homes with Anderson Union High.

Shasta Union High holds 14,541 of the 14,672 homes in ZIP Code 96001 · Redding, California, so its name is right for most of the area and wrong for the rest: 131 homes with Anderson Union High.

In ZIP Code 96008 · Bella Vista, California the single-name answer is the true one: Shasta Union High holds all 462 homes counted there, and no other district holds a share worth naming.

ZIP Code 96069 · Oak Run, California is another area where one name covers everything — 532 homes, all of them inside Shasta Union High.

In ZIP Code 96088 · Shingletown, California this district is one name among 6. Black Butte Union Elementary leads with the largest share and Shasta Union High holds 2,582 of the 2,687 homes counted there; no single name describes that area at all.

ZIP Code 96047 · Ono, California repeats the pattern with 4 names holding a real share: 423 of its 459 homes are Shasta Union High's, and the other 36 are not.

ZIP Code 96062 · Millville, California is close to being two districts in equal parts: Shasta Union High holds 417 of its 417 homes and Millville Elementary leads the rest. A lookup that picks the larger name is making a coin-toss look like a fact.

The elementary districts that feed it

Students arrive at Shasta Union High from 6 districts that run the lower grades on the same ground — Redding Elementary, which sends 33%, Enterprise Elementary, which sends 22% and Gateway Unified, which sends 11%. Each of those addresses therefore belongs to two districts at once, one for grade school and this one for high school, and neither name is the whole answer.

• Redding Elementary School District33% of Shasta Union High's homes come from here
• Enterprise Elementary School District22% of Shasta Union High's homes come from here
• Gateway Unified School District11% of Shasta Union High's homes come from here
• Pacheco Union Elementary School District5.8% of Shasta Union High's homes come from here
• Black Butte Union Elementary School District5.5% of Shasta Union High's homes come from here
• Columbia Elementary School District4.9% of Shasta Union High's homes come from here

The names in this list are exact: the federal file gives the district of each band for every census block. The percentages are not. They spread each shared ZIP Code area's homes across the other band in proportion to the share each district holds there, because the file names the two districts of a block and not how a household moves between them. Read them as the size of the crossing, not as a count of houses.

Who it shares ZIP Codes with

Shasta Union High shares ZIP Code areas with 25 different districts. The most frequent are Anderson Union High, Mountain Union Elementary, Millville Elementary and Bella Vista Elementary. 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.

• Anderson Union High School District6 shared ZIP areas
• Mountain Union Elementary School District5 shared ZIP areas
• Millville Elementary School District4 shared ZIP areas
• Bella Vista Elementary School District3 shared ZIP areas
• Cottonwood Union Elementary School District3 shared ZIP areas
• Junction Elementary School District3 shared ZIP areas

Where this district sits

• School districts in California996 of 1,788 ZIP areas split
• Every district with a page here260 districts listed

What to do next

Ask the district office to confirm your street address. A district settles that question on its own site: look for a school locator, a find my school tool, or an attendance zone map. Where there is none, ask the office itself.

A ZIP Code is a set of mail delivery routes, not a boundary: in 17 of the 24 ZIP Code areas Shasta Union High 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.

This site links to no district website. None of the federal files it is built from publishes one, and a guessed address is worse than none. It is the district office, not a search engine, that settles an address.

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.

What this cannot tell you

The homes were counted in the 2020 Census and the district lines are the 2026 boundary file. Nothing on this page adjusts one to the other. Where houses have been built or cleared since the count, a share here describes the place as it was counted rather than as it stands today, and in the fastest-growing ZIP Code areas that gap is the largest single source of error on this site.

A share on this page is a share of the homes in the ZIP Code area, not a probability for any particular address. Enrollment is decided by street address, and a district may run magnet, charter or choice programs that ignore the boundary entirely. If a decision depends on the answer, the district office is the only authority; this page shows what the federal boundary files say and when they were published.

A district boundary is not a school attendance zone. This site never says which school an address is assigned to: no current national dataset of attendance zones exists, and the district draws them itself. Nor is anything here endorsed or certified by the Census Bureau; we use their published files, and that is the whole of the relationship.

A ZIP Code is a set of mail delivery routes, not an area. What is mapped here is the Census Bureau's ZIP Code Tabulation Area, the closest published approximation to it. The two are not identical, and a handful of ZIP Codes used only for post office boxes or single buildings have no tabulation area at all.

Where these numbers come from

School district boundaries come from the Census Bureau's Census Geographic Relationship File, current 2026 vintage, which assigns every census block to a unified district or to an elementary and a secondary district. Homes and residents in each block come from the 2020 Census Redistricting Data (PL 94-171), H1_001 and P1_001. The ZIP Code areas come from the same Geographic Relationship File, block to ZIP Code Tabulation Area. District names and grade ranges come from the Census Gazetteer 2025, with 2020 for districts no longer listed.

The place name printed beside a ZIP Code comes from the Census 2020 ZIP Code Tabulation Area relationship files: place, county subdivision and county, taken 2026-09-06. It is a label rather than a measurement: the Census Bureau does not publish which post office a ZIP Code belongs to, so the place named is the one covering the most land inside the area, not the city the Postal Service prints on an envelope.

Everything else on this page — the shares, the counts of districts per ZIP, the comparison between the two grade bands, the rankings — is computed here from those files. The source publishes none of it. Snapshot taken 2026-09-03.