Lincoln-Sudbury School District

It never has a ZIP Code to itself

The counts below come from the census blocks assigned to Lincoln-Sudbury, 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 boundary9,121
• Residents25,289
• ZIP Code areas it reaches4
• Where it is the only district0
• Where it shares with another district3
• Where it holds under half a percent1
• Land area38 square miles
• Homes per square mile237

The ZIP Code areas it reaches

The spread is the thing to notice. In 01776 this district holds 98% of the homes; in 01778 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 01776 · Sudbury, Massachusetts98% of the homes
• ZIP Code 01731 · Hanscom AFB, Massachusetts98% of the homes
• ZIP Code 01773 · Waltham, Massachusetts97% of the homes
• ZIP Code 01778 · Cochituate, Massachusettsno homes at all

What one name misses, and what changes later

Lincoln-Sudbury is the largest district in 1 ZIP Code area, and not one of them is wholly its own. Answer with its name alone and the answer misses 154 of the 6,556 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.

ZIP Code 01776 · Sudbury, Massachusetts is a two-district area: 6,402 of its 6,556 homes are inside Lincoln-Sudbury, and the other 154 homes are with Wayland. Which one an address belongs to is settled by the street, not by the five digits.

In ZIP Code 01773 · Waltham, Massachusetts this district is one name among 4. Lincoln leads with the largest share and Lincoln-Sudbury holds 2,284 of the 2,360 homes counted there; no single name describes that area at all.

ZIP Code 01731 · Hanscom AFB, Massachusetts repeats the pattern with 4 names holding a real share: 435 of its 446 homes are Lincoln-Sudbury's, and the other 11 are not.

The elementary districts that feed it

Students arrive at Lincoln-Sudbury from 6 districts that run the lower grades on the same ground — Sudbury, which sends 69%, Lincoln, which sends 29% and Wayland, which sends 1.7%. 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.

• Sudbury School District69% of Lincoln-Sudbury's homes come from here
• Lincoln School District29% of Lincoln-Sudbury's homes come from here
• Wayland School District1.7% of Lincoln-Sudbury's homes come from here
• Concord School District0.7% of Lincoln-Sudbury's homes come from here
• Bedford School District0.1% of Lincoln-Sudbury's homes come from here
• Lexington School District0.1% of Lincoln-Sudbury'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

Lincoln-Sudbury shares ZIP Code areas with 7 different districts. The most frequent are Lincoln, Bedford, Concord and Concord-Carlisle. 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.

• Lincoln School District2 shared ZIP areas
• Bedford School District1 shared ZIP area
• Concord School District1 shared ZIP area
• Concord-Carlisle School District1 shared ZIP area
• Lexington School District1 shared ZIP area
• Sudbury School District1 shared ZIP area

Where this district sits

• School districts in Massachusetts148 of 534 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 3 of the 4 ZIP Code areas Lincoln-Sudbury 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.