Baltimore City Public Schools
Maryland · runs pre-K through grade 12
NCES ID 2400090 · baltimorecityschools.org · (443) 984-2000
Baltimore City covers 293,249 of the homes in 33 ZIP Code areas, but its smallest measured presence is a different thing entirely: in ZIP Code area 21228 it holds 103 of 20,422 homes, or 0.5% of them. An address in that ZIP Code is almost certainly not in this district, and a lookup that names the district without the share says the opposite. Below the half-percent line this page draws it reaches 5 further ZIP Code areas, the least of them no homes at all in 21233.
A few homes at the edge of someone else's ZIP Code
At 3,623 homes to the square mile this is city territory, and district lines in a city follow streets. Baltimore City covers 81 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 boundary293,249
- Residents585,708
- ZIP Code areas it reaches33
- Where it is the only district12
- Where it shares with another district16
- Where it holds under half a percent5
- Land area81 square miles
- Homes per square mile3,623
The ZIP Code areas it reaches
The spread is the thing to notice. In 21218 this district holds 100% of the homes; in 21287 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 21218 · Baltimore, Maryland100% of the homes
- ZIP Code 21230 · Baltimore, Maryland100% of the homes
- ZIP Code 21217 · Baltimore, Maryland100% of the homes
- ZIP Code 21216 · Baltimore, Maryland100% of the homes
- ZIP Code 21213 · Baltimore, Maryland100% of the homes
- ZIP Code 21202 · Baltimore, Maryland100% of the homes
- ZIP Code 21201 · Baltimore, Maryland100% of the homes
- ZIP Code 21223 · Baltimore, Maryland100% of the homes
- ZIP Code 21231 · Baltimore, Maryland100% of the homes
- ZIP Code 21211 · Baltimore, Maryland100% of the homes
- ZIP Code 21214 · Baltimore, Maryland100% of the homes
- ZIP Code 21205 · Baltimore, Maryland100% of the homes
- ZIP Code 21215 · Baltimore, Maryland96% of the homes
- ZIP Code 21210 · Baltimore, Maryland91% of the homes
- ZIP Code 21224 · Baltimore, Maryland86% of the homes
- ZIP Code 21229 · Baltimore, Maryland84% of the homes
- ZIP Code 21239 · Baltimore, Maryland82% of the homes
- ZIP Code 21206 · Baltimore, Maryland81% of the homes
- ZIP Code 21212 · Baltimore, Maryland66% of the homes
- ZIP Code 21225 · Brooklyn Park, Maryland57% of the homes
- ZIP Code 21209 · Baltimore, Maryland47% of the homes
- ZIP Code 21226 · Baltimore, Maryland44% of the homes
- ZIP Code 21207 · Lochearn, Maryland30% of the homes
- ZIP Code 21234 · Carney, Maryland13% of the homes
- ZIP Code 21208 · Pikesville, Maryland6.0% of the homes
- ZIP Code 21222 · Dundalk, Maryland3.0% of the homes
- ZIP Code 21227 · Arbutus, Maryland2.7% of the homes
- ZIP Code 21228 · Catonsville, Maryland0.5% of the homes
- ZIP Code 21236 · Perry Hall, Maryland69 homes, under half a percent
- ZIP Code 21237 · Rosedale, Maryland14 homes, under half a percent
- ZIP Code 21233 · Baltimore, Marylandno homes at all
- ZIP Code 21251 · Baltimore, Marylandno homes at all
- ZIP Code 21287 · Baltimore, Marylandno homes at all
What an answer of one district name misses here
Baltimore City is the largest district in 20 ZIP Code areas. Answer with its name alone and the answer misses 25,424 of the 299,181 homes those areas hold — though in 12 of them it holds every home there is. The count is homes, not addresses, and it is the number no lookup prints.
ZIP Code 21225 · Brooklyn Park, Maryland is a two-district area: 7,732 of its 13,658 homes are inside Baltimore City, and the other 5,926 homes are with Anne Arundel County. Which one an address belongs to is settled by the street, not by the five digits.
In ZIP Code 21212 · Baltimore, Maryland the split runs 9,411 to 4,748 and the larger part is Baltimore City's: the rest is 4,748 homes with Baltimore County.
In ZIP Code 21201 · Baltimore, Maryland the single-name answer is the true one: Baltimore City holds all 12,849 homes counted there, and no other district holds a share worth naming.
ZIP Code 21202 · Baltimore, Maryland is another area where one name covers everything — 13,314 homes, all of them inside Baltimore City.
Baltimore City reaches into ZIP Code 21207 · Lochearn, Maryland with 6,054 of its 20,214 homes, behind Baltimore County. The familiar answer for that area is the other name, and it is wrong for those 6,054 homes.
ZIP Code 21209 · Baltimore, Maryland is close to being two districts in equal parts: Baltimore City holds 5,813 of its 12,275 homes and Baltimore County leads the rest. A lookup that picks the larger name is making a coin-toss look like a fact.
ZIP Code 21234 · Carney, Maryland is another area where Baltimore City is present without being the answer: 3,982 of its 29,542 homes, behind Baltimore County.
ZIP Code 21226 · Baltimore, Maryland is another area where Baltimore City is present without being the answer: 1,414 of its 3,211 homes, behind Anne Arundel County.
Who takes the other homes in its ZIP Codes
Baltimore 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 — Baltimore County and Anne Arundel County. They are neighbors on the same postal ground, not the next stop for its own students.
- Baltimore County Public Schools167,576 homes in 16 shared ZIP Code areas
- Anne Arundel County Public Schools7,723 homes in 2 shared ZIP Code areas
Who it shares ZIP Codes with
These districts appear alongside Baltimore City in the same ZIP Code areas: Baltimore County and Anne Arundel County. 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.
- Baltimore County Public Schools14 shared ZIP areas
- Anne Arundel County Public Schools2 shared ZIP areas
Baltimore City and Baltimore County school district boundary: the ZIP Codes they share
- ZIP Code 21206 · Baltimore, Maryland
- ZIP Code 21207 · Lochearn, Maryland
- ZIP Code 21208 · Pikesville, Maryland
- ZIP Code 21209 · Baltimore, Maryland
- ZIP Code 21210 · Baltimore, Maryland
- ZIP Code 21212 · Baltimore, Maryland
- ZIP Code 21215 · Baltimore, Maryland
- ZIP Code 21222 · Dundalk, Maryland
- ZIP Code 21224 · Baltimore, Maryland
- ZIP Code 21227 · Arbutus, Maryland
- ZIP Code 21228 · Catonsville, Maryland
- ZIP Code 21229 · Baltimore, Maryland
- ZIP Code 21234 · Carney, Maryland
- ZIP Code 21239 · Baltimore, Maryland
Baltimore City and Anne Arundel County school district boundary: the ZIP Codes they share
- ZIP Code 21225 · Brooklyn Park, Maryland
- ZIP Code 21226 · Baltimore, Maryland
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.
Where this district sits
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 16 of the 33 ZIP Code areas Baltimore 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.
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.