ZIP Code 59101 · Lockwood, Montana
Yellowstone County · 18,725 counted · 7 districts
Each percentage here is a share of the 18,725 homes counted in ZIP Code 59101, not the chance that any one address is in that district. Enrollment follows the street: two houses on opposite sides of the same road can be in different districts, and only the district office can say which.
The districts named for the early grades in ZIP Code 59101, Lockwood, Montana are not the districts named for high school, and the set changes in both directions: one district arrives for high school that no elementary answer names, and another runs the early grades and stops. 7 districts hold the 18,725 homes counted here between them, and Billings Elementary is the largest by homes. The largest share leaves 3,314 homes elsewhere: 6,054 homes with Lockwood K-12, Elysian Elementary, Blue Creek Elementary and 2 more districts and 48 homes in districts too small to name here.
The early grades are divided many ways
6 districts hold a measurable share of ZIP Code 59101 at this level. Billings Elementary is the largest with 12,623 homes; the smallest of them holds 138 homes. Billings Elementary, Elysian Elementary and Blue Creek Elementary are named here for grade school and not for high school.
Every track below is 35 cells long and stands for all 18,725 homes counted in ZIP Code 59101, so one cell is 535 homes, rounded to the nearest whole cell. Cells lit solid are the homes one district holds, and the unlit cells are the homes held by the other districts in the same list.
- Billings Elementary School District12,623 of 18,725 homes67%
- Lockwood K-123,266 of 18,725 homes17%
- Elysian Elementary School District1,337 of 18,725 homes7.1%
- Blue Creek Elementary School District920 of 18,725 homes4.9%
- Canyon Creek Elementary School District393 of 18,725 homes2.1%
- Morin Elementary School District138 of 18,725 homes0.7%
Below half a percent at the grade school level: Huntley Project K-12 Schools, Laurel Elementary School District and Pryor Elementary School District, and one more hold 48 homes between them, which is why they are counted under the list rather than inside it. A lookup that named them alongside the districts above would be listing a boundary crossing rather than an answer.
High school is split between two districts
2 districts hold a measurable share of ZIP Code 59101 at this level. Billings High is the largest with 15,411 homes; the smallest of them holds 3,266 homes. Billings High is named here for high school and not for the early grades.
- Billings High School District15,411 of 18,725 homes82%
- Lockwood K-123,266 of 18,725 homes17%
Below half a percent at the high school level: Huntley Project K-12 Schools, Laurel High School District and Plenty Coups High School District, and one more hold 48 homes between them, which is why they are counted under the list rather than inside it. A lookup that named them alongside the districts above would be listing a boundary crossing rather than an answer.
The set of names changes in both directions
Billings High is named for high school here and for no elementary grades, and Billings Elementary, Blue Creek Elementary and Canyon Creek Elementary run the early grades and no more. An address on the wrong street can therefore change district at the change of grade and land in a district that was never part of its elementary answer, while a neighbor two blocks away keeps one name the whole way through.
What one district name costs in 59101
A lookup that answers ZIP Code 59101 with one district name has to pick one of the names below and drop the rest. Measured against the 18,725 homes counted here, for the early grades it is wrong for 6,102 homes and for high school it is wrong for 3,314 homes. That is the whole difference between this page and a one-line answer: the same federal file, read to the end instead of to the first row.
The districts that reach into 59101
The districts named above are not alike in size or in reach. Billings High touches 8 ZIP Code areas in all and holds 15,411 homes inside this one; Blue Creek Elementary touches 1 area. Not one of them is ever the only district in a ZIP Code area anywhere in the country: every postal area they touch, they share with somebody. 1 of them has a page here listing every ZIP Code area it reaches.
- Billings High School District15,411 of 18,725 here · 8 ZIP areas in all
- Billings Elementary School District12,623 of 18,725 here · 5 ZIP areas in all
- Lockwood K-123,266 of 18,725 here · 3 ZIP areas in all
- Elysian Elementary School District1,337 of 18,725 here · 3 ZIP areas in all
- Blue Creek Elementary School District920 of 18,725 here · 1 ZIP area in all
- Canyon Creek Elementary School District393 of 18,725 here · 3 ZIP areas in all
- Morin Elementary School District138 of 18,725 here · 1 ZIP area in all
Where Billings Elementary goes from here
Billings Elementary School District runs pre-K through grade 8, and it is the only school district serving 0 of the 5 ZIP Code areas it touches, shares 4 more with neighbors, and holds under half a percent of the homes in the remaining 1. Inside its own boundary it holds 52,480 homes over 92 square miles; the part of it counted in ZIP Code 59101 is 12,623 of those. The district it shares the most postal ground with is Billings High School District, across 4 ZIP Code areas.
How 59101 compares in Montana
Across Montana the boundary file names more than one district in 313 of the 368 ZIP Code areas it names a district for, 85% of them, and 1 area in the state has no high school district named for part of their homes. Counting the districts named at either level, 13 areas in Montana name more than this ZIP Code does and 340 name fewer. Nationally more than one district is named in 53% of 33,555 areas.
Look up 59101 again, or look up another ZIP Code
The lookup holds every ZIP Code area in the country with homes in it, including the ones with no page of their own. Opening it at 59101 recomputes the same 18,725 homes from the same snapshot, and typing five other digits answers for somewhere else. Nothing here is fetched from anywhere while you read: the whole index travels with the lookup page itself.
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: 3,314 of the 18,725 homes counted in 59101 sit outside the district holding the most of them, and the line between the two runs along streets rather than around the postal area.
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.
What this site can hand you instead:
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.