Agua Fria Union High School District

It never has a ZIP Code to itself

The counts below come from the census blocks assigned to Agua Fria Union High, grouped by the ZIP Code area each block falls in. The Census Bureau publishes the blocks; the grouping is computed here, and it is the only place these particular numbers exist.

• Homes inside the boundary58,322
• Residents162,066
• ZIP Code areas it reaches10
• Where it is the only district0
• Where it shares with another district9
• Where it holds under half a percent1
• Land area94 square miles
• Homes per square mile617

The ZIP Code areas it reaches

The spread is the thing to notice. In 85340 this district holds 100% of the homes; in 85037 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 85340 · Buckeye, Arizona100% of the homes
• ZIP Code 85395 · Goodyear, Arizona99% of the homes
• ZIP Code 85338 · Goodyear, Arizona63% of the homes
• ZIP Code 85392 · Avondale, Arizona41% of the homes
• ZIP Code 85307 · Glendale, Arizona40% of the homes
• ZIP Code 85396 · Buckeye, Arizona36% of the homes
• ZIP Code 85323 · Avondale, Arizona34% of the homes
• ZIP Code 85355 · Citrus Park, Arizona26% of the homes
• ZIP Code 85309 · Glendale, Arizona1.6% of the homes
• ZIP Code 85037 · Phoenix, Arizonano homes at all

The areas it leads without holding most of the homes

Agua Fria Union High is the largest district in 5 ZIP Code areas. Answer with its name alone and the answer misses 18,854 of the 65,561 homes those areas hold — though in 1 of them it holds every home there is. The count is homes, not addresses, and it is the number no lookup prints.

Agua Fria Union High is the largest name in ZIP Code 85396 · Buckeye, Arizona and still holds a minority of it: 4,794 of 13,232 homes. The other 8,438 homes are with Wickenburg Unified, Saddle Mountain Unified and Buckeye Union High. This is the shape that makes a one-name answer worst — the name is right for fewer homes than it is wrong for.

Agua Fria Union High holds 13,798 of the 21,732 homes in ZIP Code 85338 · Goodyear, Arizona, so its name is right for most of the area and wrong for the rest: 7,934 homes with Buckeye Union High and Tolleson Union High.

ZIP Code 85307 · Glendale, Arizona repeats the pattern with 6 names holding a real share: 1,594 of its 3,953 homes are Agua Fria Union High's, and the other 2,359 are not.

ZIP Code 85395 · Goodyear, Arizona is a two-district area: 14,713 of its 14,836 homes are inside Agua Fria Union High, and the other 123 homes are with Buckeye Union High. Which one an address belongs to is settled by the street, not by the five digits.

In ZIP Code 85340 · Buckeye, Arizona the single-name answer is the true one: Agua Fria Union High holds all 11,808 homes counted there, and no other district holds a share worth naming.

In ZIP Code 85392 · Avondale, Arizona this district is one name among 6. Tolleson Union High leads with the largest share and Agua Fria Union High holds 5,879 of the 14,343 homes counted there; no single name describes that area at all.

ZIP Code 85323 · Avondale, Arizona repeats the pattern with 4 names holding a real share: 4,654 of its 13,534 homes are Agua Fria Union High's, and the other 8,880 are not.

Agua Fria Union High reaches into ZIP Code 85355 · Citrus Park, Arizona with 1,078 of its 4,204 homes; 3 districts there hold a real share of it, and Dysart Unified leads them. The familiar answer for that area is one of the others, and it is wrong for those 1,078 homes.

The elementary districts that feed it

Students arrive at Agua Fria Union High from 6 districts that run the lower grades on the same ground — Litchfield Elementary, which sends 54%, Avondale Elementary, which sends 18% and Liberty Elementary, which sends 8.7%. 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.

• Litchfield Elementary District54% of Agua Fria Union High's homes come from here
• Avondale Elementary District18% of Agua Fria Union High's homes come from here
• Liberty Elementary District8.7% of Agua Fria Union High's homes come from here
• Pendergast Elementary District6.1% of Agua Fria Union High's homes come from here
• Littleton Elementary District6.0% of Agua Fria Union High's homes come from here
• Wickenburg Unified District2.5% of Agua Fria 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

Agua Fria Union High shares ZIP Code areas with 13 different districts. The most frequent are Litchfield Elementary, Tolleson Union High, Avondale Elementary and Buckeye Union High. 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.

• Litchfield Elementary District7 shared ZIP areas
• Tolleson Union High School District4 shared ZIP areas
• Avondale Elementary District3 shared ZIP areas
• Buckeye Union High School District3 shared ZIP areas
• Dysart Unified District3 shared ZIP areas
• Littleton Elementary District3 shared ZIP areas

Where this district sits

• School districts in Arizona259 of 409 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 9 of the 10 ZIP Code areas Agua Fria 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.