ZIP Code 61554 · Pekin, Illinois
Tazewell County · 18,855 counted · 6 districts
Each percentage here is a share of the 18,855 homes counted in ZIP Code 61554, 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 61554, Pekin, Illinois 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. 6 districts hold the 18,855 homes counted here between them, and Pekin Public School District108 is the largest by homes. The largest share is high enough that one name is right for most of the homes counted and wrong for the other 315: 3,562 homes with North Pekin-Marquette Heights School District 102, Rankin Community School District 98, Tremont Community Unit School District 702 and 1 more district and 8 homes in districts too small to name here.
The early grades are divided many ways
5 districts hold a measurable share of ZIP Code 61554 at this level. Pekin Public School District108 is the largest with 15,285 homes; the smallest of them holds 267 homes. Pekin Public School District108, North Pekin-Marquette Heights School District 102 and Rankin Community School District 98 are named here for grade school and not for high school.
Every track below is 35 cells long and stands for all 18,855 homes counted in ZIP Code 61554, so one cell is 539 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.
- Pekin Public School District10815,285 of 18,855 homes81%
- North Pekin-Marquette Heights School District 1022,133 of 18,855 homes11%
- Rankin Community School District 98855 of 18,855 homes4.5%
- Tremont Community Unit School District 702307 of 18,855 homes1.6%
- South Pekin School District 137267 of 18,855 homes1.4%
Below half a percent at the grade school level: Morton Community Unit School District 709, Creve Coeur School District 76 and Spring Lake Community Consolidated School District 606 hold 8 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 61554 at this level. Pekin Community High School District 303 is the largest with 18,540 homes; the smallest of them holds 307 homes. Pekin Community High School District 303 is named here for high school and not for the early grades.
- Pekin Community High School District 30318,540 of 18,855 homes98%
- Tremont Community Unit School District 702307 of 18,855 homes1.6%
Below half a percent at the high school level: Morton Community Unit School District 709 and East Peoria Community High School District 309 hold 8 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
Pekin Community High School District 303 is named for high school here and for no elementary grades, and North Pekin-Marquette Heights School District 102, Pekin Public School District108 and Rankin Community School District 98 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 61554
A lookup that answers ZIP Code 61554 with one district name has to pick one of the names below and drop the rest. Measured against the 18,855 homes counted here, for the early grades it is wrong for 3,570 homes and for high school it is wrong for 315 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 61554
The districts named above are not alike in size or in reach. Pekin Community High School District 303 touches 8 ZIP Code areas in all and holds 18,540 homes inside this one; North Pekin-Marquette Heights School District 102 touches 2 areas. 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.
- Pekin Community High School District 30318,540 of 18,855 here · 8 ZIP areas in all
- Pekin Public School District10815,285 of 18,855 here · 4 ZIP areas in all
- North Pekin-Marquette Heights School District 1022,133 of 18,855 here · 2 ZIP areas in all
- Rankin Community School District 98855 of 18,855 here · 4 ZIP areas in all
- Tremont Community Unit School District 702307 of 18,855 here · 5 ZIP areas in all
- South Pekin School District 137267 of 18,855 here · 2 ZIP areas in all
Where Pekin Public School District108 goes from here
Pekin Public School District108 runs pre-K through grade 8, and it is the only school district serving 0 of the 4 ZIP Code areas it touches, shares 2 more with neighbors, and holds under half a percent of the homes in the remaining 2. Inside its own boundary it holds 15,455 homes over 28 square miles; the part of it counted in ZIP Code 61554 is 15,285 of those. The district it shares the most postal ground with is Pekin Community High School District 303, across 2 ZIP Code areas. Its thinnest measured foothold is elsewhere: in ZIP Code area 61535 it holds 163 of 683 homes, or 24% of them.
How 61554 compares in Illinois
Across Illinois the boundary file names more than one district in 1,034 of the 1,394 ZIP Code areas it names a district for, 74% of them, and 2 areas in the state have no high school district named for part of their homes. Counting the districts named at either level, 68 areas in Illinois name more than this ZIP Code does and 1,271 name fewer. Nationally more than one district is named in 53% of 33,555 areas.
Look up 61554 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 61554 recomputes the same 18,855 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: 315 of the 18,855 homes counted in 61554 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.