Sewanhaka Central High School District

It never has a ZIP Code to itself

At 3,451 homes to the square mile this is city territory, and district lines in a city follow streets. Sewanhaka Central High 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 boundary39,794
• Residents123,211
• ZIP Code areas it reaches7
• Where it is the only district0
• Where it shares with another district7
• Where it holds under half a percent0
• Land area12 square miles
• Homes per square mile3,451

The ZIP Code areas it reaches

Every one of the 7 areas where it holds a real share it shares with somebody. Its largest foothold is 11003 at 94% of the homes; the thinnest is 11580, where it holds 11% of the homes.

• ZIP Code 11003 · Elmont, New York94% of the homes
• ZIP Code 11001 · Floral Park, New York85% of the homes
• ZIP Code 11010 · Franklin Square, New York82% of the homes
• ZIP Code 11040 · North New Hyde Park, New York59% of the homes
• ZIP Code 11530 · Garden City, New York18% of the homes
• ZIP Code 11552 · West Hempstead, New York13% of the homes
• ZIP Code 11580 · Valley Stream, New York11% of the homes

What one name misses, and what changes later

Sewanhaka Central High is the largest district in 4 ZIP Code areas, and not one of them is wholly its own for high school. Answer with its name alone and the high school answer misses 9,417 of the 44,922 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.

Sewanhaka Central High is one of 6 high school districts the file names for ZIP Code 11040 · North New Hyde Park, New York. It holds 8,316 of the 14,089 homes there; the rest is 5,765 homes with Herricks Union Free, Great Neck Union Free, New York City Department of Education and one more district; 8 homes in a district too small to name here. For grade school the area is named for New Hyde Park-Garden City Park Union Free (7,717 homes), Herricks Union Free (3,290 homes), Great Neck Union Free (1,446 homes), 3 more districts and 8 homes in a district under half a percent.

ZIP Code 11010 · Franklin Square, New York is a two-district area for high school: 6,854 of its 8,353 homes are inside Sewanhaka Central High, and the other 1,499 homes are with Valley Stream Central High. Which one an address belongs to is settled by the street, not by the five digits.

In ZIP Code 11001 · Floral Park, New York the split runs 8,206 to 1,427 and the larger part is Sewanhaka Central High's: the rest is 1,427 homes with New York City Department of Education.

ZIP Code 11530 · Garden City, New York repeats the pattern with 5 names holding a real share: 1,743 of its 9,897 homes are Sewanhaka Central High's, and the other 8,154 are not.

The elementary districts that feed it

Students arrive at Sewanhaka Central High from 6 districts that run the lower grades in the same ZIP Code areas — Elmont Union Free, which sends 35%, New Hyde Park-Garden City Park Union Free, which sends 19% and Franklin Square Union Free, which sends 19%. An address on that ground belongs to two districts at once, one for grade school and this one for high school, and neither name is the whole answer.

• Elmont Union Free School District35% of Sewanhaka Central High's homes come from here
• New Hyde Park-Garden City Park Union Free School District19% of Sewanhaka Central High's homes come from here
• Franklin Square Union Free School District19% of Sewanhaka Central High's homes come from here
• Floral Park-Bellerose Union Free School District18% of Sewanhaka Central High's homes come from here
• Valley Stream Union Free School District 136.6% of Sewanhaka Central High's homes come from here
• Valley Stream Union Free School District 301.2% of Sewanhaka Central High's homes come from here

This list is an estimate, names as well as percentages. The snapshot behind this site keeps the homes each district holds in each ZIP Code area, not the pair of districts on each census block, so a district is listed here when it runs the other band in a ZIP Code area this one shares, and each percentage spreads that area's homes across those districts in proportion to the share each holds there. Unified districts are left out: a block in a unified district belongs to no elementary or secondary district. Read the percentages as the size of the crossing, not as a count of houses.

Who it shares ZIP Codes with

Sewanhaka Central High shares ZIP Code areas with 16 different districts. The most frequent are Elmont Union Free, Franklin Square Union Free, Valley Stream Union Free School District 13 and Valley Stream Central 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.

• Elmont Union Free School District6 shared ZIP areas
• Franklin Square Union Free School District4 shared ZIP areas
• Valley Stream Union Free School District 133 shared ZIP areas
• Valley Stream Central High School District3 shared ZIP areas
• New York City Department of Education2 shared ZIP areas
• Floral Park-Bellerose Union Free School District1 shared ZIP area

Sewanhaka Central High and Elmont Union Free school district boundary: the ZIP Codes they share

• ZIP Code 11001 · Floral Park, New York
• ZIP Code 11003 · Elmont, New York
• ZIP Code 11010 · Franklin Square, New York
• ZIP Code 11040 · North New Hyde Park, New York
• ZIP Code 11530 · Garden City, New York
• ZIP Code 11580 · Valley Stream, New York

Sewanhaka Central High and Franklin Square Union Free school district boundary: the ZIP Codes they share

• ZIP Code 11003 · Elmont, New York
• ZIP Code 11010 · Franklin Square, New York
• ZIP Code 11530 · Garden City, New York
• ZIP Code 11552 · West Hempstead, New York

Sewanhaka Central High and Valley Stream Union Free School District 13 school district boundary: the ZIP Codes they share

• ZIP Code 11003 · Elmont, New York
• ZIP Code 11010 · Franklin Square, New York
• ZIP Code 11580 · Valley Stream, New York

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.

Check an exact address with the Census Geocoder

Where this district sits

• School districts in New York1,018 of 1,807 ZIP areas split
• How to find your school district numberNCES ID 3626520

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 7 of the 7 ZIP Code areas Sewanhaka Central 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.

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.