Hinsdale Township High School District 86

It never has a ZIP Code to itself

At 1,094 homes to the square mile this is city territory, and district lines in a city follow streets. Hinsdale Township High School District 86 covers 28 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 boundary30,954
• Residents76,433
• ZIP Code areas it reaches9
• Where it is the only district0
• Where it shares with another district7
• Where it holds under half a percent2
• Land area28 square miles
• Homes per square mile1,094

The ZIP Code areas it reaches

The spread is the thing to notice. In 60521 this district holds 100% of the homes; in 60439 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 60521 · Hinsdale, Illinois100% of the homes
• ZIP Code 60514 · Clarendon Hills, Illinois93% of the homes
• ZIP Code 60527 · Burr Ridge, Illinois88% of the homes
• ZIP Code 60561 · Darien, Illinois64% of the homes
• ZIP Code 60523 · Oak Brook, Illinois41% of the homes
• ZIP Code 60559 · Westmont, Illinois10% of the homes
• ZIP Code 60558 · Western Springs, Illinois1.2% of the homes
• ZIP Code 60516 · Downers Grove, Illinois21 homes, under half a percent
• ZIP Code 60439 · Lemont, Illinoisno homes at all

The areas it leads without holding most of the homes

Hinsdale Township High School District 86 is the largest district in 5 ZIP Code areas. Answer with its name alone and the high school answer misses 8,188 of the 37,933 homes those areas hold — though in 1 of them it holds every home there is for high school. The count is homes, not addresses, and it is the number no lookup prints.

Hinsdale Township High School District 86 holds 6,247 of the 9,798 homes in ZIP Code 60561 · Darien, Illinois, so its name is the right high school answer for most of the area and the wrong one for the rest: 3,551 homes with Community High School District 99 and Lemont Township High School District 210.

Hinsdale Township High School District 86 is the largest name in ZIP Code 60523 · Oak Brook, Illinois and still holds a minority of it: 1,980 of 4,781 homes. The other 2,801 homes are with Community High School District 99, DuPage High School District 88, Westmont Community Unit School District 201 and one more district. This is the shape that makes a one-name answer worst — the name is right for fewer homes than it is wrong for.

In ZIP Code 60527 · Burr Ridge, Illinois the split runs 11,229 to 1,527 and the larger part is Hinsdale Township High School District 86's: the rest is 1,512 homes with Lyons Township High School District 204 and 15 homes in a district too small to name here.

ZIP Code 60514 · Clarendon Hills, Illinois is a two-district area for high school: 3,817 of its 4,126 homes are inside Hinsdale Township High School District 86, and the other 309 homes are with Westmont Community Unit School District 201. Which one an address belongs to is settled by the street, not by the five digits.

Hinsdale Township High School District 86 holds all 6,472 homes counted for high school in ZIP Code 60521 · Hinsdale, Illinois, and no other high school district holds a share worth naming. For grade school the same homes are named for Hinsdale Community Consolidated School District 181 (5,886 homes), Maercker School District 60 (390 homes), Butler School District 53 (154 homes) and Gower School District 62 (42 homes), so a single name answers only one of the two questions there.

In ZIP Code 60559 · Westmont, Illinois this district is one name among 6. Community High School District 99 leads with the largest share and Hinsdale Township High School District 86 holds 1,129 of the 10,807 homes counted there; no single name describes that area at all.

Hinsdale Township High School District 86 is not the name anyone would give for ZIP Code 60558 · Western Springs, Illinois — Lyons Township High School District 204 leads it — and Hinsdale Township High School District 86 holds 59 homes there all the same. Answer that area with one name and that is what it is wrong about.

The elementary districts that feed it

Students arrive at Hinsdale Township High School District 86 from 6 districts that run the lower grades in the same ZIP Code areas — Hinsdale Community Consolidated School District 181, which sends 29%, Maercker School District 60, which sends 16% and Gower School District 62, which sends 12%. An address on that ground belongs to two districts at once, one for grade school and this one for high school, and neither name is the whole answer.

• Hinsdale Community Consolidated School District 18129% of Hinsdale Township High School District 86's homes come from here
• Maercker School District 6016% of Hinsdale Township High School District 86's homes come from here
• Gower School District 6212% of Hinsdale Township High School District 86's homes come from here
• Darien School District 6111% of Hinsdale Township High School District 86's homes come from here
• Community Consolidated School District 1808.3% of Hinsdale Township High School District 86's homes come from here
• Cass School District 637.8% of Hinsdale Township High School District 86's homes come from here

This list is an estimate, names as well as percentages. The snapshot behind this site keeps the homes each district holds in each ZIP Code area, not the pair of districts on each census block, so a district is listed here when it runs the other band in a ZIP Code area this one shares, and each percentage spreads that area's homes across those districts in proportion to the share each holds there. Unified districts are left out: a block in a unified district belongs to no elementary or secondary district. Read the percentages as the size of the crossing, not as a count of houses.

Who it shares ZIP Codes with

Hinsdale Township High School District 86 shares ZIP Code areas with 21 different districts. The most frequent are Hinsdale Community Consolidated School District 181, Maercker School District 60, Community High School District 99 and Darien School District 61. In a neighborhood this crowded the question is not which district serves the ZIP Code but which side of which street an address is on.

• Hinsdale Community Consolidated School District 1815 shared ZIP areas
• Maercker School District 605 shared ZIP areas
• Community High School District 993 shared ZIP areas
• Darien School District 613 shared ZIP areas
• Westmont Community Unit School District 2013 shared ZIP areas
• Butler School District 532 shared ZIP areas

Hinsdale Township High School District 86 and Hinsdale Community Consolidated School District 181 school district boundary: the ZIP Codes they share

• ZIP Code 60514 · Clarendon Hills, Illinois
• ZIP Code 60521 · Hinsdale, Illinois
• ZIP Code 60523 · Oak Brook, Illinois
• ZIP Code 60527 · Burr Ridge, Illinois
• ZIP Code 60558 · Western Springs, Illinois

Hinsdale Township High School District 86 and Maercker School District 60 school district boundary: the ZIP Codes they share

• ZIP Code 60514 · Clarendon Hills, Illinois
• ZIP Code 60521 · Hinsdale, Illinois
• ZIP Code 60527 · Burr Ridge, Illinois
• ZIP Code 60559 · Westmont, Illinois
• ZIP Code 60561 · Darien, Illinois

Hinsdale Township High School District 86 and Community High School District 99 school district boundary: the ZIP Codes they share

• ZIP Code 60523 · Oak Brook, Illinois
• ZIP Code 60559 · Westmont, Illinois
• ZIP Code 60561 · Darien, Illinois

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.

Check an exact address with the Census Geocoder

Where this district sits

• School districts in Illinois1,034 of 1,394 ZIP areas split
• How to find your school district numberNCES ID 1719320

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 7 of the 9 ZIP Code areas Hinsdale Township High School District 86 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.