TUSD Needs to Account for Every School-Age Child Living Within Its Boundaries
Why Tucson Unified School District Must Analyze Population Trends, School Choice, Enrollment Capture Rates, and the Financial Consequences of Losing Students
TUSD Cannot Solve Its Enrollment Problem Without Understanding the Population It Serves
Tucson Unified School District (TUSD) faces an important question that should be central to its financial planning, school reconfiguration decisions, and educational improvement strategy:
How many school-age children live within TUSD's geographic boundaries, and where do those children actually attend school?
This is a different question from how many students are enrolled in TUSD schools.
The distinction is fundamental.
A school district can lose enrollment because the number of children living within its boundaries is declining. It can also lose enrollment because families are choosing charter schools, private schools, homeschooling, or public schools in neighboring districts.
Both factors can occur simultaneously.
However, they require different management responses.
If fewer children live within the district, management must adapt its facilities, staffing, and operating costs to a smaller population.
If children continue living within the district but attend other educational providers, management must understand why families are making those decisions.
TUSD cannot develop an effective long-term enrollment strategy without separating these two causes.
Before TUSD decides which schools to close, consolidate, expand, or reconfigure, it should establish a comprehensive picture of the school-age population within its boundaries and where those children receive their education.
1. TUSD's Enrollment Decline Is a Significant Financial and Governance Issue
TUSD has experienced a substantial decline in enrollment over the past decade.
Available historical comparisons indicate that enrollment has fallen from approximately 48,000 students in the 2014–15 period to roughly 40,000 students in recent reporting periods.
Those figures are approximate and reflect different enrollment reporting conventions. A formal district analysis should reconcile them using consistent definitions and measurement dates.
More recent state reporting also indicates a continuing decline in funding-related student counts.
These trends raise important questions.
How much of the decline reflects fewer children living within district boundaries?
How much reflects families choosing other educational providers?
Which neighborhoods are losing school-age residents?
Which schools are losing students faster than their surrounding neighborhoods?
Which TUSD programs are attracting students, and which are losing them?
What are the financial consequences of each trend?
Without reliable answers, management risks making major decisions based on incomplete information.
2. School-Age Population Is Not the Same as District Enrollment
TUSD should distinguish at least four separate measures.
Resident school-age population: The number of children of school age living within TUSD's geographic boundaries, regardless of where they attend school.
Resident students attending TUSD: Children living within district boundaries who attend TUSD-operated schools.
Resident students attending other providers: Children living within district boundaries who attend charter schools, private schools, other public districts, or homeschool.
Nonresident students attending TUSD: Children living outside TUSD boundaries who attend TUSD schools through open enrollment or other authorized arrangements.
These populations should not be combined without explanation.
For example, a TUSD school may have 600 enrolled students, but some may live outside the district.
Meanwhile, hundreds of children living in the school's surrounding attendance area may attend other schools.
The school's enrollment alone does not reveal the size of its potential student market.
A meaningful analysis requires both geographic population information and actual enrollment destinations.
3. The First Requirement: A Ten-Year History of School-Age Children
TUSD should prepare a historical analysis showing how many children lived within its boundaries during each of the past ten years.
The analysis should separately identify relevant age groups, such as:
Ages 5–10: Elementary school-age population.
Ages 11–13: Middle school-age population.
Ages 14–17: High school-age population.
Ages 5–17: Total traditional school-age population.
These age groups are useful for planning but do not perfectly correspond to grade levels.
Kindergarten eligibility, preschool enrollment, grade retention, and students older than 17 must be considered separately.
The analysis should use consistent geographic boundaries and clearly identify data sources.
Potential sources include the U.S. Census Bureau's school district population estimates, American Community Survey data, local birth records, and other reliable demographic information.
TUSD should present annual changes and ten-year trends.
For example, management should be able to answer:
Did the district's school-age population decline by 3%, 8%, or 15% over the decade?
Did the elementary-age population decline faster than the high school-age population?
Are some neighborhoods gaining children while others are losing them?
These are essential planning questions.
4. The Second Requirement: Where Do Resident Children Attend School?
Knowing the number of school-age children is only the beginning.
TUSD should determine how those children are distributed among educational providers.
A comprehensive analysis should identify, to the extent reliable data permit:
Educational destination | Information TUSD should report |
TUSD-operated schools | Resident students attending district schools |
Charter schools | TUSD-resident students enrolled in charter schools |
Other public school districts | Resident students attending neighboring districts |
Private schools | Estimated resident enrollment in private education |
Homeschool | Estimated resident students educated at home |
Other arrangements | Students in alternative or specialized programs |
Unknown or unverified | Children whose educational destination cannot be reliably determined |
The categories must be mutually exclusive, with clear definitions and reporting dates.
Some information may be available from state education records. Other information may require estimates, agreements with relevant agencies, or supplementary research.
The district should disclose data limitations rather than treating estimates as exact counts.
Importantly, TUSD should not attempt to publish personally identifiable information about individual children.
The objective is aggregate demographic and enrollment analysis.
5. TUSD Should Calculate Its Enrollment Capture Rate
One of the most important performance measures is the district's enrollment capture rate.
The capture rate measures the proportion of school-age children living within district boundaries who attend TUSD schools.
he calculation is straightforward:
Enrollment Capture Rate = TUSD-Resident Students Attending TUSD ÷ Total Resident School-Age Population × 100
Consider a hypothetical example:
Measure | Students |
School-age children residing within district boundaries | 52,500 |
Resident students attending TUSD | 35,000 |
Resident children attending other providers or otherwise not captured in TUSD enrollment | 17,500 |
Illustrative TUSD capture rate | 66.7% |
These figures are illustrative and should not be interpreted as verified current TUSD enrollment data.
The example demonstrates why the calculation matters.
A district can have 40,000 students attending its schools while serving a substantially different number of children who actually reside within its boundaries.
For greater precision, the capture rate should use a consistent age or grade-eligibility population in both the numerator and denominator.
TUSD should calculate capture rates by grade grouping, geography, and year.
6. Capture Rates Should Be Calculated by Individual School Attendance Area
A district-wide capture rate is useful, but it can conceal significant differences among neighborhoods.
TUSD should evaluate the school-age population associated with each attendance area.
For example:
Hypothetical attendance area | Resident school-age children | Residents attending assigned TUSD school | Assigned-school capture rate |
Area A | 1,000 | 750 | 75% |
Area B | 1,000 | 550 | 55% |
Area C | 1,000 | 350 | 35% |
All figures are illustrative.
This example measures attendance at the assigned school, not attendance anywhere within TUSD. Those are different measures and should be reported separately.
A low assigned-school capture rate may indicate that students attend another TUSD school, a charter school, a private school, or another public district.
The district should identify those destinations before interpreting the results.
A school with declining enrollment may be located in a neighborhood with fewer children.
Alternatively, the neighborhood may still have a substantial child population, but families may be choosing other schools.
Those circumstances should lead to different management decisions.
7. TUSD Must Understand Why Families Choose Other Schools
The numbers identify where students are going.
They do not automatically explain why families are leaving.
TUSD should undertake a structured analysis of family educational choices.
Potential factors include:
Academic performance: Parents may select schools based on student achievement and academic growth.
School safety: Families may be concerned about discipline, bullying, or campus security.
Specialized programs: Families may seek advanced academics, career education, language immersion, or other offerings.
School culture: Parents may respond to leadership, communication, expectations, and student support.
Convenience: Transportation, schedules, and school location may influence enrollment.
School reputation: Family and community perceptions may affect choices even when they do not fully reflect measured performance.
Individual student needs: Special education services, extracurricular activities, and other considerations may be important.
The district should not assume that every student attending a charter school left because of dissatisfaction with TUSD.
Likewise, it should not assume that declining enrollment is entirely the result of demographic change.
Surveys, enrollment records, family interviews, and comparative school performance data can help identify the principal reasons.
8. Student Achievement Must Be Part of the Analysis
A school district's purpose is to educate students.
Therefore, enrollment analysis should be connected to educational outcomes.
TUSD should compare enrollment patterns with measures such as:
English language arts proficiency.
Mathematics proficiency.
Student academic growth.
Graduation rates.
Chronic absenteeism.
School accountability ratings.
Advanced course participation.
College and career readiness.
The analysis should determine whether schools with stronger outcomes are attracting and retaining more students.
It should also examine whether families are choosing other schools that demonstrate stronger academic performance.
However, comparisons must account for differences in student populations, grade configurations, and other relevant factors.
A simple comparison of proficiency percentages may be misleading if schools serve substantially different populations.
The purpose is not to blame individual schools. It is to identify which educational approaches are producing strong outcomes and where improvement is necessary.
9. Successful TUSD Schools Should Be Studied as Models
TUSD should also examine schools and programs that maintain strong enrollment demand.
Questions include:
Why do families select these schools?
Do they have waiting lists?
Are qualified applicants being turned away because of capacity limitations?
What academic programs distinguish them?
Can successful instructional practices be expanded to other schools?
Would additional seats attract students who would otherwise leave TUSD?
University High School is an example of a program for which application demand, admissions capacity, and unmet demand deserve careful analysis.
The district should report the number of applicants, the number admitted, and the number who enroll, using consistent definitions.
A strong school system should not only examine why enrollment is declining.
It should also understand why some programs are successful.
10. The Financial Consequences of Losing Students Must Be Quantified
Enrollment declines can reduce operating revenue under Arizona's school funding framework.
However, the financial impact depends on the applicable funding formulas, student characteristics, weighted counts, and other revenue sources.
TUSD should calculate the marginal and long-term financial consequences of enrollment changes.
Management should be able to estimate:
The revenue impact of losing 100 students.
The revenue impact of losing 500 students.
The revenue impact of losing 1,000 students.
The costs that can realistically be reduced.
The costs that remain fixed.
The resulting operating deficit or surplus.
For illustration, if a hypothetical district loses 1,000 students and the net recurring funding impact averages $9,000 per student, the annual revenue effect would be approximately $9 million.
That is an example, not an estimate of TUSD's actual per-student funding loss.
The correct analysis must use Arizona's applicable funding calculations and TUSD's actual student characteristics.
The district should also distinguish between students lost because of demographic decline and students lost because of changes in educational choices.
The financial effects may be similar, but the available management responses are different.
11. School Closure Decisions Must Consider Resident Population and Capture Rates
TUSD should not determine school closures using current enrollment alone.
A school with low enrollment may serve an area with a substantial school-age population.
If families are choosing other providers, the district should consider whether educational improvements could attract more students.
Conversely, a school located in an area with a rapidly shrinking child population may face a long-term structural challenge even if its academic performance is strong.
A sound school reconfiguration model should include:
Decision factor | Key question |
Current enrollment | How many students attend the school? |
Resident school-age population | How many children live in the surrounding attendance area? |
Population trend | Is the local child population growing or declining? |
Assigned-school capture rate | What share attends the assigned school? |
District retention | What share attends another TUSD school? |
External enrollment | What share attends schools outside TUSD? |
Academic performance | What educational outcomes are being achieved? |
Facility utilization | How much building capacity is used? |
Facility condition | What maintenance and capital needs exist? |
Financial performance | What are the operating costs and potential savings? |
Future demand | What enrollment is reasonably expected in five and ten years? |
These measures should be evaluated together.
Closing a school without understanding the local school-age population and enrollment destinations could produce unintended consequences.
12. TUSD Needs a Ten-Year Historical Analysis and a Twenty-Year Forecast
The district should produce two related reports.
Historical report: 2016–2026
The historical analysis should show:
Resident school-age population by year.
Resident population by age group.
TUSD enrollment by grade.
Resident students attending TUSD.
Resident students attending other providers.
District-wide capture rate.
Attendance-area capture rates.
Academic performance trends.
Facility utilization trends.
Forecast: 2027–2046
The long-term projection should evaluate:
Birth trends.
Kindergarten enrollment.
Grade-to-grade student progression.
Housing development.
Migration.
School choice patterns.
Charter and private school enrollment.
Future TUSD enrollment.
Facility capacity requirements.
Staffing needs.
Operating revenue and expenses.
The forecast should include optimistic, most-likely, and adverse scenarios.
It should be updated annually and compared with actual results.
A 20-year forecast should not be represented as a precise prediction. Its purpose is to help management evaluate plausible outcomes and prepare appropriate responses.
13. Management Must Own the Analysis
The responsibility for producing this information belongs to TUSD management.
The Superintendent and responsible administrators should ensure that reliable demographic, enrollment, academic, facilities, and financial information is developed and presented to the Governing Board.
This responsibility should not depend on Board members discovering missing information and asking individual questions.
Management should proactively identify significant risks and provide the information necessary for effective governance.
This is a fundamental principle of internal control.
Under the COSO Internal Control—Integrated Framework, management is responsible for establishing and maintaining effective internal controls.
Relevant COSO principles include:
Principle 6 — Specifies Suitable Objectives: Objectives should be sufficiently clear to permit risk identification.
Principle 7 — Identifies and Analyzes Risk: Significant risks to organizational objectives should be evaluated.
Principle 9 — Identifies and Analyzes Significant Change: Management should assess changes that could materially affect internal controls.
Principle 13 — Uses Relevant, Quality Information: Management should obtain or generate reliable information supporting internal control.
Principle 15 — Communicates Externally: The organization should communicate with relevant external parties regarding matters affecting internal control.
For TUSD, demographic change and enrollment loss are significant matters that should be incorporated into its management information and risk assessment processes.
14. The Governing Board Should Require a Comprehensive Enrollment Report
The TUSD Governing Board should direct management to prepare an annual School-Age Population and Enrollment Destination Report.
The report should answer five questions:
How many school-age children live within TUSD boundaries?
How has that population changed over the past ten years?
Where do those children attend school?
Why are families choosing TUSD or other educational providers?
What do these trends mean for TUSD's educational programs, facilities, staffing, and financial sustainability?
The Board should require clear definitions, reliable data sources, documented assumptions, and explanations of significant uncertainties.
The report should be made available to the public in an understandable format.
An interactive dashboard would allow stakeholders to examine district-wide trends and individual school attendance areas.
15. The Audit Committee Should Evaluate the Reliability of the Information
TUSD's Audit Committee can provide valuable oversight without assuming management's operational responsibilities.
Within its charter and delegated authority, the committee should consider whether management has established effective controls over:
Enrollment data collection.
Student residency classification.
State enrollment reporting.
Demographic forecasting.
Enrollment capture-rate calculations.
Facilities utilization reporting.
Financial projections.
Board management reports.
The committee should ask whether management has documented its methodology and reconciled information from different systems.
For example, state funding counts, enrollment headcounts, and Census school-age population estimates serve different purposes.
They should not be presented as interchangeable measures.
Internal Audit could perform an independent engagement evaluating the completeness, accuracy, and reliability of the district's enrollment analysis.
This would provide additional assurance before the Board relies on the information for significant financial and facilities decisions.
16. A Proposed Enrollment Accountability Dashboard
TUSD should publish an annual dashboard with the following measures.
Measure | Reporting frequency |
Resident school-age population | Annually |
Birth trends within district geography | Annually |
Kindergarten enrollment | Annually |
Enrollment by grade and school | At least annually |
Resident students attending TUSD | Annually |
Resident students attending other public providers | Annually |
Estimated private and homeschool enrollment | Annually, with data limitations |
District-wide capture rate | Annually |
Attendance-area capture rates | Annually |
Applications and waiting lists for high-demand programs | Each admissions cycle |
Academic proficiency and growth | Annually |
Facility utilization | Annually |
Enrollment forecast versus actual | Annually |
Financial impact of enrollment changes | During budget development and updates |
The district should publish historical trends rather than only current-year values.
Where data are unavailable, the dashboard should clearly identify the missing information and management's plan to improve reporting.
17. A Practical 180-Day Action Plan for TUSD
TUSD does not need to wait several years to begin this work.
A structured six-month initiative could establish the foundation for better planning.
Period | Recommended action |
Days 1–30 | Assign management responsibility, define populations, identify data sources, and document privacy safeguards |
Days 31–60 | Compile ten-year resident population and enrollment data |
Days 61–90 | Analyze enrollment destinations and calculate initial capture rates |
Days 91–120 | Develop attendance-area trends and identify significant data gaps |
Days 121–150 | Connect demographic results to academic performance, facilities, and financial forecasts |
Days 151–180 | Present findings, limitations, and recommended actions to the Governing Board |
The report should distinguish verified facts from estimates.
Where complete enrollment-destination data cannot be obtained, management should use transparent estimates and identify the limitations.
The initial report does not need to be perfect.
It needs to be credible, useful, and capable of improvement.
18. The Cost of Not Knowing
Without a detailed analysis of resident school-age children and enrollment destinations, TUSD risks making decisions based on incomplete assumptions.
It could close a school in an area where significant unmet demand exists.
It could retain facilities in neighborhoods where the child population is unlikely to recover.
It could underestimate the financial consequences of declining enrollment.
It could fail to expand successful programs that families want.
It could attribute student losses entirely to demographic trends when some losses reflect dissatisfaction with educational offerings.
Or it could assume that better marketing will restore enrollment when the underlying child population is shrinking.
These are materially different problems.
They cannot be managed effectively with a single district-wide enrollment number.
The Bottom Line: TUSD Must Understand the Children It Serves—and Those It Does Not
TUSD's enrollment decline is more than a budgeting issue.
It is a demographic, educational, financial, and governance challenge.
The district needs to know how many school-age children live within its boundaries, how that population is changing, and where those children attend school.
It must distinguish between children who no longer live in the district and children whose families have selected other educational providers.
It should also determine which schools and programs are attracting families, which are losing students, and why.
That information should guide long-term decisions concerning educational improvement, staffing, facilities, school reconfiguration, and financial sustainability.
TUSD should not ask the public to accept major school closures or long-term financial decisions without first providing a comprehensive, transparent analysis of the school-age population and the educational choices being made by families living within its boundaries.
The responsibility for developing that analysis belongs to management.
The responsibility for requiring and evaluating it belongs to the Governing Board.
And the responsibility for providing independent assurance concerning the reliability of the underlying information can appropriately involve Internal Audit and the Audit Committee.
TUSD cannot effectively plan for the next 20 years until it understands the children living within its boundaries today.
Comments