ZIP Code 60517 · Woodridge, Illinois

The early grades are divided many ways

5 districts hold a measurable share of ZIP Code 60517 at this level. Woodridge School District 68 is the largest with 10,633 homes; the smallest of them holds 317 homes. Woodridge School District 68, Center Cass School District 66 and Downers Grove Grade School District 58 are named here for grade school and not for high school.

Every track below is 35 cells long and stands for all 13,657 homes counted in ZIP Code 60517, so one cell is 390 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.

• Woodridge School District 6810,633 of 13,657 homes78%
• Center Cass School District 661,260 of 13,657 homes9.2%
• Downers Grove Grade School District 58809 of 13,657 homes5.9%
• Lemont-Bromberek Combined School District 113A620 of 13,657 homes4.5%
• Naperville Community Unit District 203317 of 13,657 homes2.3%

Below half a percent at the grade school level: Valley View Community Unit School District 365U and Community Consolidated School District 180 hold 18 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.

Three districts share high school

3 districts hold a measurable share of ZIP Code 60517 at this level. Community High School District 99 is the largest with 12,702 homes; the smallest of them holds 317 homes. Community High School District 99 and Lemont Township High School District 210 are named here for high school and not for the early grades.

• Community High School District 9912,702 of 13,657 homes93%
• Lemont Township High School District 210626 of 13,657 homes4.6%
• Naperville Community Unit District 203317 of 13,657 homes2.3%

Below half a percent at the high school level: Valley View Community Unit School District 365U holds 12 homes, which is why it is counted under the list rather than inside it. A lookup that named it alongside the districts above would be listing a boundary crossing rather than an answer.

The set of names changes in both directions

Community High School District 99 and Lemont Township High School District 210 are named for high school here and for no elementary grades, and Lemont-Bromberek Combined School District 113A, Center Cass School District 66 and Downers Grove Grade School District 58 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 60517

A lookup that answers ZIP Code 60517 with one district name has to pick one of the names below and drop the rest. Measured against the 13,657 homes counted here, for the early grades it is wrong for 3,024 homes and for high school it is wrong for 955 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 60517

The districts named above are not alike in size or in reach. Community High School District 99 touches 11 ZIP Code areas in all and holds 12,702 homes inside this one; Center Cass School District 66 touches 3 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. 1 of them has a page here listing every ZIP Code area it reaches.

• Community High School District 9912,702 of 13,657 here · 11 ZIP areas in all
• Woodridge School District 6810,633 of 13,657 here · 6 ZIP areas in all
• Center Cass School District 661,260 of 13,657 here · 3 ZIP areas in all
• Downers Grove Grade School District 58809 of 13,657 here · 8 ZIP areas in all
• Lemont Township High School District 210626 of 13,657 here · 6 ZIP areas in all
• Lemont-Bromberek Combined School District 113A620 of 13,657 here · 5 ZIP areas in all
• Naperville Community Unit District 203317 of 13,657 here · 7 ZIP areas in all

Where Woodridge School District 68 goes from here

Woodridge School District 68 runs pre-K through grade 8, and it is the only school district serving 0 of the 6 ZIP Code areas it touches, shares 4 more with neighbors, and holds under half a percent of the homes in the remaining 2. Inside its own boundary it holds 15,002 homes over 7 square miles; the part of it counted in ZIP Code 60517 is 10,633 of those. The district it shares the most postal ground with is Community High School District 99, across 4 ZIP Code areas. Its thinnest measured foothold is elsewhere: in ZIP Code area 60440 it holds 505 of 17,866 homes, or 2.8% of them.

How 60517 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, 34 areas in Illinois name more than this ZIP Code does and 1,326 name fewer. Nationally more than one district is named in 53% of 33,555 areas.

• School districts in Illinois1,034 of 1,394 ZIP areas split
• Where grade school and high school are different districts2,682 ZIP areas where the bands disagree

Look up 60517 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 60517 recomputes the same 13,657 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.

• ZIP Code 60517 · Woodridge, Illinois33,555 ZIP areas indexed

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: 955 of the 13,657 homes counted in 60517 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:

• Community High School District 9911 ZIP Code areas in all
• How this is worked out4 Census Bureau files

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.