Iowa runs 1,326 public schools across 328 districts, with a 15:1 average classroom and 36.4% of students on subsidized lunch.
1,326
public schools
328
school districts
15:1
avg student–teacher
36.4%
free/reduced lunch
How Iowa ranks nationally
Per-pupil spending
$12,854
#41of 51 · highest-spending
Average student-teacher ratio
15:1
#31of 51 · lowest ratios
Public schools
1,326
#28of 51 · most schools
On subsidized lunch
36.4%
#31of 43 · highest share
Iowa ranks #41 of 51 nationally on per-pupil spending and #31 of 51 on average student-teacher ratio, derived live by comparing it against every other state. Ranked among all 50 states + DC from NCES enrollment/staffing and the F-33 finance survey. Lunch share is an indicator of student need, not of quality.
What the NCES Data Says About Iowa Schools
Iowa operates 1,326 public K-12 schools organised into 328 independent school districts serving 497,853 students, per the National Center for Education Statistics Common Core of Data 2024-25. The largest district, Des Moines Independent Comm School District, enrolls 30,739 pupils across 59 schools at $14,308 per student, while smaller rural districts can run fewer than a dozen campuses. This fragmentation, inherited from century-old township governance patterns in many states, is why per-pupil spending, class sizes, and programme availability vary dramatically inside a single state boundary.
Statewide, the average student-teacher ratio is 15:1, a useful benchmark for comparing any individual district or school on PlainSchools. Free-lunch eligibility averages 36.4% across Iowa public schools, a federal indicator of economic need that drives Title I funding allocations. The district table below is sortable by enrollment, school count, and per-pupil expenditure, the three fields that best predict a district's financial and demographic profile. For schools specifically, use the rankings links above to view per-category leaderboards covering spending, student-teacher ratio, best schools by composite quality score, chronic absenteeism, and funding-equity distribution within the state.
Every district figure here pulls from two distinct federal surveys: enrollment and demographic data come from the NCES Common Core of Data 2024-25 (school membership and directory), while per-pupil spending, teacher salaries, and federal/state/local revenue shares originate in the NCES F-33 School District Finance Survey (typically FY 2021-22). Civil-rights indicators, gifted enrollment, AP course counts, counselor staffing, chronic absenteeism, in- and out-of-school suspensions, come from the 2021-22 Civil Rights Data Collection. Cross-referencing these three sources is what lets PlainSchools produce composite scores and equity rankings that single-source tools cannot.
Iowa's average student-teacher ratio vs. every US state
Average students per teacher, state by state (lower means more staffing per student)
15lower student-teacher ratio than 39% of 51 US states
Each bar is a band; taller bars hold more US states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Department of Education, NCES Common Core of Data · 2024-25
Federal data, transparent formula.
PlainSchools publishes the actual federal survey data - enrollment, staffing, finance, and demographics from NCES. The diversity index and composite quality scores referenced on this page are PlainSchools' own transparent derived indices (not an official NCES rating), computed directly from those datasets with the exact formula disclosed on our methodology page; every input number traces to a cited source.
Iowa per-pupil spending varies 3.7× across districts
Per-pupil spending in Iowa ranges from $9,282 (lowest district) to $34,244 (highest), a spread of $24,962. That relatively narrow ratio reflects an unusually equalised funding system, most states have wider gaps. High-spending districts typically draw on higher property tax bases, a structural feature of state education finance under the federal Title I framework that sets the floor but not the ceiling.
Average Iowa student-teacher ratio is 15:1 - near the U.S. average of approximately 16:1
Student-teacher ratio is the simplest staffing metric reported on NCES Common Core of Data, but it does not capture push-in specialists, intervention staff, English Language Learner aides, special education co-teachers, or counseling and support staff. Variation between districts within the state is wider than the state-average figure suggests, large urban districts may run 20:1 while small rural districts run 10:1, both inside the same average. Class-load comparisons are most meaningful at the district or school level, not the state aggregate.
Iowa's public schools average a Simpson diversity index of 33.8/100, below the national average of 43.5. The index runs 0-100 from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality. See where Iowa ranks in our national school-diversity analysis.
Data sourced from NCES Common Core of Data (CCD) 2024-25, NCES F-33 School District Finance Survey, and Civil Rights Data Collection (CRDC) 2021-22.
Using the Iowa data
Iowa's 1,326 schools sit inside 328 districts - compare at the district level first.
District boundaries decide enrollment: shortlist 2-3 districts on spending, ratio, and size before comparing individual schools. Compare districts →
Check how Iowa distributes money across its districts, funding equity varies more within states than between them. Funding equity →
Verify any school's federal record (enrollment, staffing, CRDC flags) before a visit or enrollment decision. Look up a school →
Figures are the federal record (CCD 2024-25, F-33 FY 2021-22, CRDC 2021-22) - they lag the current school year. PlainSchools assigns no subjective rating; the composite quality score used in our rankings is a transparent, reproducible index computed from this cited federal data.
Frequently Asked Questions
How many public schools are in Iowa?
Iowa has 1,326 public schools across 328 school districts, serving 497,853 students.
What is the average student-teacher ratio in Iowa?
The average student-teacher ratio in Iowa public schools is 15:1. This varies by district, use the district table below to compare.
What percentage of Iowa students qualify for free lunch?
36.4% of students in Iowa qualify for free or reduced-price lunch, an indicator of economic need used for Title I funding.
What is the largest school district in Iowa?
The largest school district in Iowa is Des Moines Independent Comm School District with 30,739 students across 59 schools.
Largest K-12 public schools by total students enrolled
students
Lincoln High School
2,364
Lincoln High School
2,364 students
100.0% of the leader · rank #1 · Des Moines, IA
Linn-Mar High School
2,229
Linn-Mar High School
2,229 students
94.3% of the leader · rank #2 · Marion, IA
Valley High School
2,178
Valley High School
2,178 students
92.1% of the leader · rank #3 · West Des Moines, IA
Roosevelt High School
2,051
Roosevelt High School
2,051 students
86.8% of the leader · rank #4 · Des Moines, IA
East High School
1,952
East High School
1,952 students
82.6% of the leader · rank #5 · Des Moines, IA
Johnston Senior High S…
1,820
Johnston Senior High School
1,820 students
77.0% of the leader · rank #6 · Johnston, IA
Prairie High School
1,766
Prairie High School
1,766 students
74.7% of the leader · rank #7 · Cedar Rapids, IA
Pleasant Valley High S…
1,731
Pleasant Valley High School
1,731 students
73.2% of the leader · rank #8 · Bettendorf, IA
What this shows The largest public schools in Iowa by enrollment, often statewide virtual academies or large consolidated campuses, so size here reflects reach, not quality.
Source: National Center for Education Statistics (NCES) Common Core of Data (CCD) - Public school universe · 2023-2024 Public K-12 school enrollment, demographics, and operational data; collected annually by NCES from state education agencies.