Most buyers tour a home wondering which school it's zoned for. In Chicago that's only a third of the answer — and often the least important third. Here's how enrollment actually works, and exactly where an address matters.
These are separate systems with separate rules. A home can be excellent for one and irrelevant for another. Knowing which one you care about changes which homes are worth touring.
CPS assigns every address a neighborhood school and, subject to its residency and enrollment requirements, provides a general education seat there. No application, no lottery, no test. It is the only seat in the system not awarded by application.
GuaranteedLiving within 1.5 miles of a magnet elementary school puts you in a proximity lottery at entry-level grades, competing for a separate pool of seats from the citywide tier lottery. Sor Juana Elementary uses 2.5 miles, and magnet high schools use 2.5 miles as well.
Preference, not a guaranteeEvery address in the city is assigned a tier from 1 to 4, calculated from census tract characteristics. For selective enrollment, tier determines which pool you compete in — which changes the score needed for an offer.
Changes your competitionAlmost every explanation of this jumps straight to how tiers are used and never says what one is. So, plainly:
A tier is a label attached to a small piece of the map.
The piece of map is a census tract — a standard unit the US Census Bureau draws nationwide, typically holding a few thousand people. Bigger than a block, smaller than a neighborhood. Chicago is carved into about 800 of them, and every address sits inside exactly one.
Each tract gets its label like this:
Those six criteria are set and published by CPS, not by me. They exist to allocate selective enrollment seats. They are not a measure of a neighborhood's quality and I don't use them that way.
So a tier isn't a place you can point at on a map. It's a ranking, assigned to a small patch of ground, based on census data about the households in it.
There is no such thing as a Tier 3 neighborhood. Only an address has a tier. Look it up one address at a time.
A selective enrollment school doesn't run one admissions list. It runs five, and every applicant gets two chances at the same school.
All four tier lines hold the same number of seats. They do not receive the same number of high rank scores. At the most competitive schools, more applicants with high scores apply from Tier 4 tracts, so the cutoff in that line runs highest — often around a hundred points above Tier 1. An identical score can be an admit from the Tier 1 line and a miss from the Tier 4 line.
This does not hold everywhere. At several selective schools on the South and West Sides the pattern reverses, and the Tier 4 cutoff comes in below Tier 3. CPS publishes point totals school by school, and that is the only place to get the real number for a school you care about.
Which is the reverse of what most buyers assume. People expect a wealthier address to improve their odds at the selective enrollment high schools. At the most competitive ones it generally does the opposite: it puts you in the most crowded line.
CPS publishes the lookup. Enter any address in the CPS School Locator and it returns the assigned neighborhood school and the tier together. Before writing an offer on a home where schools matter, run the exact address — not the block, not the neighborhood.
Live boundary data published by the City of Chicago. Use it to orient yourself — to see how large a given attendance area is, where the edges fall, and how a few blocks can change the assignment. Click any area for its school name.
This is a guaranteed seat, not a limit. Every other program — magnet, selective enrollment, charter — is a separate application. Confirm any address in the CPS School Locator, which is the authoritative source and is the only place that returns the official tier.
Pre-K, K–8, and high school run on different portals, different timelines, and different admission logic. Pick where your child will be when you move in.
Pre-K does not go through GoCPS. It runs through Chicago Early Learning, a separate city portal covering programs from prenatal through age five — CPS-run classrooms and community-based providers together.
Explore programs by location and apply at chicagoearlylearning.org, or read the CPS overview at cps.edu.
Your address gives you a seat at your neighborhood school. Every other option — and there are more than 470 — runs through GoCPS, a single application where you rank your choices. It returns your best offer in each category you applied to, and you accept one.
Assigned by your home address. A seat in the general education program is guaranteed. You do not apply.
Citywide themed programs. Entry grades use a lottery with a 1.5-mile proximity preference, then tier-based selection.
Neighborhood schools with a specialized instructional focus. Open to students outside the boundary by lottery.
Schools with seats available to students living outside the attendance area, filled by lottery.
Instruction in two languages. Includes an English Learner priority group in the selection order.
Accelerated liberal arts. Admission by entrance exam, with the tier structure applied to seat allocation.
Accelerated instruction for identified students. Admission by entrance exam and tier allocation.
Grades 7–8 hosted on a selective high school campus. A separate application from the main high school process.
Publicly funded, independently operated. Included in GoCPS; admission is generally by lottery, not by address.
At a magnet, seats come off the top in this order. An applicant is placed in only one group — the highest they qualify for.
That split matters more than it looks. Proximity is not a rung above everyone else that fills before the general pool opens — the two lotteries run against separate pots of seats. Living outside the radius doesn't put you behind every neighbor; it puts you in the larger of the two pools.
Separately, some program types carry their own preferences: an English Learner preference in dual language programs, and a pre-K preference at certain Choice programs for students continuing from that school's own pre-K.
More than 160 programs, and this is where address matters least and preparation matters most. You still have a guaranteed neighborhood high school, but a large share of Chicago families apply out.
Assigned by address, seat guaranteed. Your fallback no matter what else happens in the application.
Admission by rank score combining the HSAT and 7th-grade grades. 30% of seats by citywide rank, 70% split evenly across the four tiers.
Programs in specific trades and industries, admission criteria varying by program.
IB Diploma programs across multiple campuses, with their own admission requirements.
Themed or citywide programs, generally filled by lottery rather than by test.
Independently operated schools and programs serving specific student needs, included in GoCPS.
Chicago school admissions run a year ahead of enrollment. If you're moving for a school year, the application window usually opens the autumn before. Dates below are the published CPS cycle — confirm current dates at GoCPS, they shift year to year.
A meaningful share of Chicago families use these, and they operate on entirely different rules — most importantly, address is largely irrelevant. If you're committed to a private path, school boundaries should carry far less weight in where you buy.
The Archdiocese of Chicago operates the largest private system in the region, spanning elementary parish schools and roughly 32 high schools. There is no centralized application — each school runs its own admissions.
Browse the full directory at the Archdiocese of Chicago school finder.
Non-parochial private schools — including Montessori, progressive, and traditional independent programs — run a longer and more involved admissions cycle that begins nearly a year ahead. Deadlines here are earlier than most families expect, and missing one costs you the entire year.
If you're confident about a private path, you're effectively buying a commute rather than a boundary. That's a genuinely different search: proximity to a specific campus, the drive at 7:30 on a weekday, whether a bus route serves it, and whether the school runs its own transportation.
In practice most families I work with keep both doors open — they want a neighborhood school they'd accept and a private option they're pursuing. That's a reasonable position, and it's one we can search for deliberately rather than by accident.
These come up after people are already under contract. Better to have them now.
Yes. CPS redraws boundaries periodically, and schools open, close, and consolidate. The assignment attached to an address today is not a permanent feature of the property.
This is the strongest argument against buying a home you otherwise don't want in order to capture a specific school. You cannot control the boundary, the school's staffing, or its programs over a ten-year hold. Buy a home and a neighborhood you want on their own merits, and treat the current assignment as a meaningful plus rather than the foundation of the decision.
For choice and selective programs that year, almost certainly — those applications closed the previous November. But you are not without a school. Your neighborhood school seat is guaranteed by address, and it's available to you as soon as you have a lease or deed.
The practical plan: enroll at the neighborhood school for year one, and apply through GoCPS that September for the following year. Plenty of families do exactly this. It's a delay, not a dead end.
CPS requires proof of residency showing the student lives at the address, and the requirements are specific about what counts. Expect to provide documentation such as a deed, lease, or recent utility bill in the parent's name at that address.
Two practical notes for buyers. First, if you're closing close to an enrollment deadline, ask what CPS will accept before closing — a signed contract is generally not the same as proof of residency. Second, requirements are updated periodically, so confirm the current list with the school or the Office of Access and Enrollment rather than relying on what a friend did two years ago.
Substantially, for choice programs. Sibling preference is the highest priority group — above staff, above proximity, above tier. If a sibling is currently enrolled and will still be there, that applicant is considered before the general pool.
The strategic read: the first child's application is the hard one. If you have several children and a program you genuinely want, the effort you invest in the first application carries forward in a way it doesn't in most systems.
I'd be cautious. Tiers are recalculated from census data on a periodic basis, so the tier attached to an address can shift without you doing anything. Buying a home you like less in order to land in a different tier means accepting a permanent tradeoff for a temporary and uncontrollable input.
It's also worth remembering that 30% of selective enrollment seats are awarded on citywide rank with no tier involved at all, and that tier applies to selective enrollment specifically — not to your guaranteed neighborhood seat, not to charters, not to most magnet lotteries in the same way.
The mechanics matter here: GoCPS returns one offer. You're waitlisted at anything you ranked higher than the offer you received, and you're out of consideration at anything you ranked lower.
That structure rewards ranking in genuine order of preference rather than trying to game likelihood. Putting a school you'd rather attend below a school you think you're more likely to get into can cost you the better outcome. Rank what you actually want, in the order you actually want it.
Some families do, and it can work — enrollment follows your residence, so a lease in an attendance area establishes the assignment. But understand what you're committing to: CPS residency requirements are enforced, and continued enrollment depends on continuing to live there.
The version that goes wrong is renting into a boundary, enrolling, and then buying outside it — which can put the placement at risk. If renting first is your plan, sequence the purchase deliberately and talk to the school about how a move mid-year is handled.
I don't answer that one, and I want to explain why rather than just deflect.
Fair housing law prohibits steering — directing buyers toward or away from neighborhoods in ways that correlate with protected characteristics. School quality commentary is one of the most well-documented ways that happens, usually without anyone intending it. HUD and NAR guidance is that agents can share objective, publicly available school data, but that subjective quality opinions can cross into discriminatory conduct.
So my job is to make sure you know how the system works, what your address does and doesn't determine, and exactly where the official data lives — and then to get out of the way of your judgment. Every family weighs this differently, and the data you'd use is public and better than my opinion. Visit the schools. Talk to the principals. Sit in on a tour. That's worth more than any ranking.
I don't rank schools — but you're going to look at school data, and most of it is presented in a way that misleads people. Here's how to read it properly. This is the part that makes every school profile you'll ever open more useful.
This is the single most useful distinction in school data, and almost no parent knows it.
A snapshot of how students score against state standards at one moment. It tells you where students are — which is heavily influenced by everything that happened before they walked in the door, including household income.
Says more about intakeHow much students gained compared to peers who started at the same level. It gets much closer to what the school itself contributed, because it holds the starting point constant.
Says more about the schoolNearly every commercial ranking site leans on proficiency, because it's simple and it sorts cleanly. The effect is that those rankings largely reproduce a map of household income. A school serving a high-poverty population that moves students further in a year than almost anywhere in the state can appear near the bottom of a list built on proficiency alone.
Illinois publishes both. The state has explicitly pushed toward growth as the more meaningful measure — its framing is that growth shows whether students are catching up, keeping pace, or excelling over time, and that the two numbers together give the complete picture. When you open a school's profile on the Illinois Report Card, look for both and read them against each other.
Every number above is a filter, not an answer. The families who choose well visit. They walk the halls mid-morning, sit in on a tour, ask the principal what the school is working on this year, and talk to parents at pickup.
Fifteen minutes in a building will tell you things no dataset contains — whether the place feels calm or chaotic, whether adults seem to like being there, whether student work is on the walls. That's the part worth your Saturday, and it's the part I'd genuinely encourage you to do before you write an offer on a house you're buying partly for its school.
Everything on this page is a map of the system. These are the official tools that give you the answer for your specific address and your specific child.
Enter any Chicago address. Returns the assigned neighborhood elementary and high school, plus the selective enrollment tier. This is the authoritative answer — use it before writing an offer.
The single application portal for K–9 programs. Explore all 470+ elementary and 160+ high school options, compare, and apply. Current deadlines are posted here.
The separate portal for pre-K and early childhood, prenatal through age five. Applications accepted year-round. Family hotline: 312-229-1690.
The official explanation of how tiers are calculated and applied, straight from CPS rather than filtered through anyone's interpretation.
The full directory of Catholic elementary and high schools across the archdiocese, with contact information and individual admissions pages.
The state's official data on every public school — enrollment, staffing, programs, performance. Public, objective, and more complete than any third-party ranking site.
The families who do this well decide early how much weight schools carry, confirm the facts for specific addresses rather than neighborhoods, and then go looking for a home they'd want regardless. The ones who struggle work backwards from a ranking and end up in a house that doesn't fit them.
Bring me the addresses you're considering and I'll pull the official assignment and tier for each one before we tour. It takes minutes and it changes which homes are worth your Saturday.
Buying for the first time? The companion to this page walks the whole purchase — pre-approval to keys, fourteen steps, every deadline that matters.
The Chicago Buyer’s Roadmap →