School districts in District of Columbia

District of Columbia is run as a single school system: District of Columbia covers the whole territory, all 34 ZIP Code areas with homes in them. There is nothing to disagree about here, and no lookup is needed — the answer is the same at every address.

One district, one state

The state sits well below the national rate of 53%. District of Columbia alone covers 350,364 homes, and districts that size swallow whole postal areas rather than splitting them. Where a ZIP Code area here does cross a line, it is worth checking precisely because it is unusual.

ZIP Code areas with a district34
Served by more than one district0 (0%)
Grade school and high school differ0 (0%)
No high school district named0
Unified districts1
Elementary districts0
Secondary districts0
Homes in no district at all0

Where a single district name still works in District of Columbia

Across the 34 ZIP Code areas in District of Columbia with homes in them, an answer of one district name misses 0 of the 350,364 homes they hold. That is 0% of the state, and in 34 of the areas one name covers everything: this is a state where the familiar answer is usually the right one, and the areas below are where it is not.

ZIP Code 20001 · Washington, District of Columbia is served end to end by District of Columbia: one district for all 28,128 homes counted there, which is what makes it unusual on this page.

ZIP Code 20002 · Washington, District of Columbia is served end to end by District of Columbia: one district for all 37,401 homes counted there, which is what makes it unusual on this page.

ZIP Code 20003 · Washington, District of Columbia is served end to end by District of Columbia: one district for all 21,574 homes counted there, which is what makes it unusual on this page.

The largest ZIP Code areas here

Not one of the 34 ZIP Code areas in District of Columbia that the federal file names a district for is served by more than one of them: one district covers each of those postal areas by itself. The 12 areas below are the largest by homes, and each one opens the full answer for that ZIP Code.

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: 0 of the 34 ZIP Code areas in District of Columbia with a district named for them are served by more than one school district, and the line between two of 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.