Binghamton City School District

It never has a ZIP Code to itself

At 2,159 homes to the square mile this is city territory, and district lines in a city follow streets. Binghamton City covers 12 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 boundary25,502
• Residents49,074
• ZIP Code areas it reaches6
• Where it is the only district0
• Where it shares with another district4
• Where it holds under half a percent2
• Land area12 square miles
• Homes per square mile2,159

The ZIP Code areas it reaches

Every one of the 4 areas where it holds a real share it shares with somebody. Its largest foothold is 13905 at 85% of the homes; the thinnest is 13850, where it holds 1 home, under half a percent.

• ZIP Code 13905 · Binghamton, New York85% of the homes
• ZIP Code 13903 · Binghamton, New York72% of the homes
• ZIP Code 13904 · Binghamton, New York63% of the homes
• ZIP Code 13901 · Chenango Bridge, New York46% of the homes
• ZIP Code 13790 · Johnson City, New York13 homes, under half a percent
• ZIP Code 13850 · Binghamton University, New York1 home, under half a percent

The areas it leads without holding most of the homes

Binghamton City is the largest district in 4 ZIP Code areas, and not one of them is wholly its own. Answer with its name alone and the answer misses 11,692 of the 37,180 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.

Binghamton City is the largest name in ZIP Code 13901 · Chenango Bridge, New York and still holds a minority of it: 4,714 of 10,311 homes. The other 5,597 homes are 5,550 with Chenango Valley Central, Chenango Forks Central and Whitney Point Central; 47 in a district too small to name here. This is the shape that makes a one-name answer worst — the name is right for fewer homes than it is wrong for.

Binghamton City holds 6,361 of the 8,774 homes in ZIP Code 13903 · Binghamton, New York, so its name is right for most of the area and wrong for the rest: 2,400 homes with Susquehanna Valley Central and 13 homes in a district too small to name here.

Binghamton City is one of 6 districts the file names for ZIP Code 13905 · Binghamton, New York at that level. It holds 11,680 of the 13,790 homes there; the rest is 2,066 homes with Johnson City Central, Chenango Valley Central, Whitney Point Central and 1 more district and 44 homes in a district too small to name here. One name for that area is not a simplification, it is a different answer for 2,110 of the homes in it.

ZIP Code 13904 · Binghamton, New York repeats the pattern with 4 names holding a real share: 2,733 of its 4,305 homes are Binghamton City's, and the other 1,572 are not.

Who takes the other homes in its ZIP Codes

Binghamton City runs pre-K 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 — Johnson City Central, Vestal Central and Chenango Valley Central. They are neighbors on the same postal ground, not the next stop for its own students.

• Johnson City Central School District9,704 homes in 2 shared ZIP Code areas
• Vestal Central School District9,574 homes in 1 shared ZIP Code area
• Chenango Valley Central School District4,757 homes in 3 shared ZIP Code areas
• Susquehanna Valley Central School District2,451 homes in 2 shared ZIP Code areas
• Chenango Forks Central School District2,129 homes in 2 shared ZIP Code areas
• Windsor Central School District710 homes in 1 shared ZIP Code area

Who it shares ZIP Codes with

Binghamton City shares ZIP Code areas with 7 different districts. The most frequent are Chenango Valley Central, Chenango Forks Central, Whitney Point Central and Windsor Central. 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.

• Chenango Valley Central School District3 shared ZIP areas
• Chenango Forks Central School District2 shared ZIP areas
• Whitney Point Central School District2 shared ZIP areas
• Windsor Central School District1 shared ZIP area
• Harpursville Central School District1 shared ZIP area
• Johnson City Central School District1 shared ZIP area

Where this district sits

• School districts in New York1,018 of 1,807 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 6 ZIP Code areas Binghamton 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.