Roselle SD 12 vs Center Cass SD 66
IL · 707 students • IL · 1,130 students • fiscal year 2024 • swap sides
In one line
- Center Cass SD 66 spends 3% more per student than Roselle SD 12 after adjusting for local price levels.
- Center Cass SD 66 directs 5 more cents of every operating dollar to instruction than Roselle SD 12.
Are these even comparable?
Establish the shape of each district before reading a single dollar figure.
| Roselle SD 12 | Center Cass SD 66 | |
|---|---|---|
| Students enrolled | 707 | 1,130 |
| Schools | 2 | 3 |
| Grades served | PK–8 | PK–8 |
| Setting | Suburb | Suburb |
| County | DuPage County | DuPage County |
| State | IL | IL |
| Local price level (US = 100) BEA Regional Price Parity. Above 100 means a dollar buys less here than the national average. | 103.6 | 103.6 |
The headline dollar
Current operating spending per student, shown three ways. The first is what each district reports. The second and third are the honest ones for comparison.
| Roselle SD 12 | Center Cass SD 66 | |
|---|---|---|
| Per student, as reported | $17,772 | $18,227 |
| Per student, price-adjusted Divided by the local price level, so both figures are in the same money. | $17,155 | $17,595 |
| Per student, price-adjusted, excluding transport Transportation provision varies enormously between districts and states. Removing it compares the parts both districts actually do. | $16,355 | $16,837 |
| Capital spending per student Buildings and land, reported separately and never folded into the operating figures above. It is lumpy: a district mid-build looks expensive for two years. | Locked | Locked |
Roselle SD 12
Center Cass SD 66
Where the money comes from
The funding mix determines how exposed a district is to local property values, to state politics, and to federal programmes ending.
Roselle SD 12
- Local 73.1% Locked
- State 24.3% Locked
- Federal 2.7% Locked
Center Cass SD 66
- Local 69.2% Locked
- State 25.8% Locked
- Federal 5.0% Locked
| Roselle SD 12 | Center Cass SD 66 | |
|---|---|---|
| Local share of revenue Mostly property tax. A high share means school budgets track local property values, up and down. | 73.1% | 69.2% |
| State share of revenue | 24.3% | 25.8% |
| Federal share of revenue | 2.7% | 5.0% |
| Total revenue | Locked | Locked |
How IL funds its districts
Evidence-Based Funding: an adequacy target per district, with new state money directed first to districts furthest below their target.
How IL funds its districts
Evidence-Based Funding: an adequacy target per district, with new state money directed first to districts furthest below their target.
Where the money goes
The same slices in the same order for both districts, plus the differences by function — because two pie charts side by side hide exactly the thing you want to see.
Roselle SD 12
- Instruction 57.3% Locked
- Instructional staff support 6.3% Locked
- Student support 4.3% Locked
- Operations & maintenance 5.1% Locked
- Transportation 4.7% Locked
- Food service 0.6% Locked
- School administration 4.9% Locked
- District administration 5.1% Locked
- Other support 5.0% Locked
- Other current 0.7% Locked
Center Cass SD 66
- Instruction 63.6% Locked
- Instructional staff support 4.5% Locked
- Student support 4.8% Locked
- Operations & maintenance 5.6% Locked
- Transportation 4.3% Locked
- Food service 1.3% Locked
- School administration 3.3% Locked
- District administration 2.7% Locked
- Other support 2.9% Locked
- Other current 1.3% Locked
What is actually different
Share of each district's operating dollar, Roselle SD 12 minus Center Cass SD 66. Two pie charts side by side are almost impossible to read against each other; this is the same data as one chart.
| Roselle SD 12 | Center Cass SD 66 | |
|---|---|---|
| Cents of each operating dollar reaching classrooms Instruction plus instructional staff support, as a share of current spending. | 63.5% | 68.1% |
| Administration share District office plus school administration. | 9.9% | 6.0% |
| Transportation share | 4.7% | 4.3% |
What the money buys
Staffing levels are the most direct thing a budget converts into.
| Roselle SD 12 | Center Cass SD 66 | |
|---|---|---|
| Students per teacher This is a staffing ratio: total enrolment divided by teaching staff. It is NOT average class size, which no national source collects. Actual classes are larger than this number in every district. | 14.4 | 14.5 |
| Students per counsellor | Locked | Locked |
| Students per administrator | Locked | Locked |
| Total salaries All staff, not teachers alone. The federal survey does not separate teacher pay. | Locked | Locked |
Who they serve
The answer to "but they serve different kids" — which is usually a fair objection.
| Roselle SD 12 | Center Cass SD 66 | |
|---|---|---|
| Child poverty rate Census SAIPE estimate of children aged 5–17 in poverty within the district boundary. Used instead of free-lunch eligibility, which community eligibility has made unusable for comparison. | 3.9% | 4.0% |
| English learners | 0 | 0 |
| Students with disabilities | 0 | 0 |
| Enrolment change, 5 years | +1.9% | +4.2% |
Results, and results for the money
Stability and risk
The homebuyer’s real question: what is likely to change after I move in?
Roselle SD 12
No stability flags raised.
Center Cass SD 66
No stability flags raised.
| Roselle SD 12 | Center Cass SD 66 | |
|---|---|---|
| Enrolment change, 5 years | +1.9% | +4.2% |
| Long-term debt per student | Locked | Locked |
| Debt service share of spending | Locked | Locked |
Enrolling a child
Is a seat at your zoned school guaranteed?
Roselle SD 12
We have no such statement from this district — which is not the same as a promise that your zoned school has room. Most districts never publish the policy in either direction, and we have read only a fraction of the ones that do. Ask the school office directly whether your address’s school is enrolling at your child’s grade level before you sign anything.
Center Cass SD 66
We have no such statement from this district — which is not the same as a promise that your zoned school has room. Most districts never publish the policy in either direction, and we have read only a fraction of the ones that do. Ask the school office directly whether your address’s school is enrolling at your child’s grade level before you sign anything.
- This is the district’s own published wording, not our summary of it. Policies are rewritten between enrolment seasons and a page can be out of date the day after we read it — the school office is the only authority on whether a particular grade at a particular school is full right now.
- A warning here is about capacity, not about your address. It does not mean your child will be moved; it means the district has told you in writing that it may move them.
Comparability notes
No comparability caveats: these two are a like-for-like pair.
What these numbers are, exactly
- Finance: US Census Bureau Annual Survey of School System Finances (F-33), fiscal year 2024.
- Enrolment, staffing and directory: NCES Common Core of Data via the Urban Institute Education Data Portal, 2024.
- Child poverty: Census SAIPE school-district estimates, 2024.
- Price levels: BEA Regional Price Parities, 2024.
- Districts self-report to the F-33 survey. States differ in what they count as an operating expense, and several pay teacher pensions centrally so that cost never appears in a district’s books. No arithmetic fixes that; we name it instead.
- Property tax basis and borrowing: the same F-33 filing, revenue codes T06 and T02 and the long-term debt schedule (_19H, _21F, _31F, _41F).
Who decides, and what it costs you
Every band above this one asks what a district spends. This one asks who chose to.
Roselle SD 12
The district levies its own school tax
This district raises property tax in its own name. Who sets the rate varies by state — an elected board in some, a public vote in others — but the levy is the school system’s own, and it is the part of a tax bill that school politics moves most directly.
Center Cass SD 66
The district levies its own school tax
This district raises property tax in its own name. Who sets the rate varies by state — an elected board in some, a public vote in others — but the levy is the school system’s own, and it is the part of a tax bill that school politics moves most directly.
| Roselle SD 12 | Center Cass SD 66 | |
|---|---|---|
| School property tax levied, per student Only for districts that levy in their own name. Blank where the county or town levies instead — see the cards above, and read the next row. | $15,843 | $14,619 |
| Appropriated by the county or town, per student What the parent government handed the schools, for dependent systems. This is a general appropriation, not solely property tax. | — | — |
| Property tax as a share of all revenue How much of the budget rides on local property values, and therefore on local votes. | 67.7% | 63.6% |
| Long-term debt already owed, per student The balance at the end of the year, for scale. Repaid over decades, so it is a commitment made by earlier boards rather than a bill arriving now. | Locked | Locked |
| Debt service as a share of spending Interest plus principal repaid this year, against total spending. This is the part of the debt that is being paid now, out of money that would otherwise reach a classroom. | Locked | Locked |
| New long-term debt issued, per student Money borrowed during fiscal year 2024, as reported to the federal survey. What this figure does and does not tell you is set out under the table. | $98 | $0 |
- Center Cass SD 66: issued no new long-term debt in fiscal year 2024. That is a reported zero, not a gap in the data.
- A figure in the borrowing row is not a bond voters approved. The federal survey records debt issued, and that includes refinancing existing debt at a new rate — which changes nothing about what a district owes — as well as certificates of participation and lease-revenue debt, which in many states a board can issue with no referendum at all. To find out what was actually on a ballot, check the county election office.
- Debt is repaid over decades. A large balance per student is a commitment made by earlier boards and earlier voters, not a bill arriving this year. The debt service row above it is the part being paid now.
What this band does not answer yet
Unlock the full comparison of Roselle SD 12 and Center Cass SD 66
The verdict, the headline dollar, the funding shares, who is served and every comparability caveat are free above, and stay free. What is behind the lock is the detail you would want before acting on any of it:
- capital spending per student
- total revenue and the funding mix in dollars
- the ten-line per-student breakdown of where the money goes
- counsellor and administrator ratios, and the total salary bill
- the debt behind the risk flags — per student, and as a share of spending
$19 once for this pair, or $7 a month for every district in the country.
One payment, no account to create. Buy on the web and the iPhone app unlocks with the same receipt.