Plainfield City School District

It never has a ZIP Code to itself

At 2,874 homes to the square mile this is city territory, and district lines in a city follow streets. Plainfield City covers 6 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 boundary17,125
• Residents54,586
• ZIP Code areas it reaches4
• Where it is the only district0
• Where it shares with another district4
• Where it holds under half a percent0
• Land area6 square miles
• Homes per square mile2,874

The ZIP Code areas it reaches

The spread is the thing to notice. In 07062 this district holds 91% of the homes; in 08812 it holds 0.7% of the homes. 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 07062 · Plainfield, New Jersey91% of the homes
• ZIP Code 07063 · Plainfield, New Jersey73% of the homes
• ZIP Code 07060 · Plainfield, New Jersey59% of the homes
• ZIP Code 08812 · Dunellen, New Jersey0.7% of the homes

What one name misses in the areas it leads

Plainfield City is the largest district in 3 ZIP Code areas, and not one of them is wholly its own. Answer with its name alone and the answer misses 8,065 of the 25,154 homes those areas hold. That count is computed here from census blocks; the lookups that answer this question with a single name never print it.

Plainfield City holds 9,443 of the 15,933 homes in ZIP Code 07060 · Plainfield, New Jersey, so its name is right for most of the area and wrong for the rest: 6,482 homes with North Plainfield Borough and 8 homes in a district too small to name here.

In ZIP Code 07063 · Plainfield, New Jersey the split runs 3,090 to 1,136 and the larger part is Plainfield City's: the rest is 1,134 homes with North Plainfield Borough and 2 homes in a district too small to name here.

ZIP Code 07062 · Plainfield, New Jersey is a two-district area: 4,556 of its 4,995 homes are inside Plainfield City, and the other 439 homes are with North Plainfield Borough. Which one an address belongs to is settled by the street, not by the five digits.

Plainfield City is not the name anyone would give for ZIP Code 08812 · Dunellen, New Jersey — Dunellen Borough leads it — and Plainfield City holds 36 homes there all the same. Answer that area with one name and that is what it is wrong about.

Who takes the other homes in its ZIP Codes

Plainfield City 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 — North Plainfield Borough, Dunellen Borough and Green Brook Township. They are neighbors on the same postal ground, not the next stop for its own students.

• North Plainfield Borough School District8,055 homes in 3 shared ZIP Code areas
• Dunellen Borough School District2,727 homes in 1 shared ZIP Code area
• Green Brook Township School District2,371 homes in 1 shared ZIP Code area

Who it shares ZIP Codes with

These districts appear alongside Plainfield City in the same ZIP Code areas: North Plainfield Borough, Dunellen Borough and Green Brook Township. A single-name lookup for one of those areas has to choose between them, and the choice is right for some addresses and wrong for others.

• North Plainfield Borough School District3 shared ZIP areas
• Dunellen Borough School District1 shared ZIP area
• Green Brook Township School District1 shared ZIP area

Where this district sits

• School districts in New Jersey320 of 597 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 4 of the 4 ZIP Code areas Plainfield City 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.