Enrollment
176
Elementary
DISTRICT 285 · STATE 325
SCHOOL COMMUNITY·BENTON COMM SCHOOL DISTRICT·NCES 190483002227
Keystone Elementary School
280 4th St, Keystone, IA 52249 · (319) 442-3221 · Benton County
GRADES PK–03ELEMENTARY42-RURALTITLE IREGULAR SCHOOL176 STUDENTS
A+
allk12 Grade
Scored higher than 95% of Iowa public elementary schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ABeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Iowa public elementary schools
Student : Teacher
14.8:1
12 FTE teachers
DISTRICT 15.1:1 · STATE 13.7:1
Free / Reduced Lunch
42%
74 students
DISTRICT 26% · STATE 41%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 42 | 24% |
| Kindergarten | 40 | 23% |
| Grade 1 | 24 | 14% |
| Grade 2 | 36 | 20% |
| Grade 3 | 34 | 19% |
Student demographics
26%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 18% · STATE 48% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Keystone Elementary School→Norway Elementary School→Benton Community Middle School→Benton Community Senior High School
Based on grade levels within Benton Comm School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
ISASP 2024-25 . % ProficientEnglish Language Arts
75.0%
IA avg 73.6% . -7.8pp since 2023
Math
81.3%
IA avg 70.9% . -15.3pp since 2023
What this means: On the ISASP, Iowa's statewide test, about 75 of every 100 students at this school read and write at grade level and about 81 of 100 do math at grade level. Across all Iowa schools, those numbers are about 74 and 71. Reading and writing scores are down about 8 points since 2023, while math scores are down about 15 points.
ISASP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 75.0% | 81.3% |
| 2023-24 | 82.8% | 96.6% |
% Proficient, all students and all tested grades.
Source: ISASP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of IA schools after controlling for student poverty
Actual proficiency
83.9%
composite math + reading, all grades
Predicted
70.9%
based on IA schools with similar FRL share
Beats by
+13.0pp
above demographic expectation
What this means: About 84% of students here test proficient in math and reading, well above the roughly 71% typical for Iowa schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 13 points, placing it in Iowa's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Keystone Elementary School
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Keystone Elementary School this school | 176 | 42.0% | 83.9% |
| Dexter Elementary School Dexter | 186 | 43.5% | N/A |
| English Valleys Elementary School North English | 183 | 41.5% | 68.9% |
| Harris-Lake Park Elementary School Lake Park | 167 | 40.7% | 67.8% |
| Bailey Park Elementary School Grinnell | 147 | 42.2% | N/A |
| Boyer Valley Elementary School Dow City | 208 | 43.3% | N/A |
Matched among Iowa elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Keystone Elementary School ranks
Among elementary schools| Measure | This school | In Iowa | In Benton County |
|---|---|---|---|
| State test proficiency ranked highest first | 83.9% | #64 of 564 | N/A |
| Math proficiency ranked highest first | 81.3% | #193 of 564 ▼ 187 | N/A |
| Reading proficiency ranked highest first | 75.0% | #243 of 564 ▼ 175 | N/A |
| Enrollment ranked largest first | 176 | #585 of 705 | #6 of 6 |
| Free and reduced lunch ranked highest share first | 42.0% | #333 of 666 | #4 of 6 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
176
0 (0%) vs 2020
Student : Teacher
14.8:1
was 12.6:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 176 | 11.9 | 14.8:1 | 42% (74) |
| 2023-24 | 173 | 11.9 | 14.6:1 | 35% (61) |
| 2022-23 | 207 | 13.7 | 15.2:1 | 24% (49) |
| 2020-21 | 176 | 14 | 12.6:1 | 32% (56) |
| 2017-18 | 176 | 12.2 | 14.4:1 | 23% (41) |
| 2015-16 | 215 | 12 | 17.9:1 | 27% (59) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Keystone Elementary School.
Since 2017-18: students unchanged (176 to 176); teachers down 3% (12.2 to 11.9).
About Keystone Elementary School
Students in Keystone, Iowa, attend Keystone Elementary School, a small elementary school. The school covers pre-K through 3 and reported 176 students in 2024-25. That puts enrollment 46% below the 325-student average for elementary schools in Iowa.
Benton Comm School District runs Keystone Elementary School along with 4 other schools, enrolling 1,614 students in total.
At Keystone Elementary School, 86% of students are White. Smaller groups are 6% Hispanic, 4% Black, and 3% multiracial. For comparison, the population of Benton County is roughly 95% White. The diversity index for Keystone Elementary School is 26%. For US public schools as a whole it is 70%.
Staffing at Keystone Elementary School comes to 11.9 full-time-equivalent teachers, or 14.8:1. By comparison, the average for elementary schools in Iowa is 13.7:1. Keystone Elementary School counts 42% of students as eligible for free or reduced-price lunch.
Among Iowa public elementary schools, Keystone Elementary School outscored 95%, which works out to an A+ on the allk12 Grade.
Keystone Elementary School ranks in the top 10% of Iowa schools after adjusting test results for student poverty. Actual: 83.9%. Predicted: 70.9%. Difference: 13.0 points.
The school is in Benton County, where the median household earns about $86,962 a year, a bachelor's degree or higher is held by about 26% of adults, and the share of residents below the poverty line is 4%. Keystone Elementary School shares Benton County with 11 other public schools.
The closest school to Keystone Elementary School is Benton Community Senior High School, located about 5.8 miles away. The count of other public schools within ten miles is 4. Among its closest neighbors with test data, Keystone Elementary School is 1st of 7 on proficiency.
Under the NCES locale system, Keystone Elementary School is Rural: Distant.
Enrollment in 2024-25 was 176, close to the 176 recorded in 2020-21. Students per teacher increased from 12.6 in 2020-21 to 14.8 in 2024-25.
On allk12, people connected to Keystone Elementary School can post about athletics, class schedules, and weather closures. Current and former families are welcome to add their experience.
Benton County at a glance
View full county profilePopulation
25,724
Census ACS
Median income
$86,962
Household, ACS
Bachelor's+
26%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
12
3,919 students
Quick facts
Related schools
Other schools in Benton Comm School District
- Benton Community Senior High SchoolHigh · 473 students
- Atkins Elementary SchoolElementary · 394 students
- Norway Elementary SchoolMiddle · 336 students
- Benton Community Middle SchoolMiddle · 235 students
Other Keystone Elementary schools
4 other US public schools in 4 states are named Keystone Elementary. Keystone Elementary School is the 5th largest of the 5.
- Keystone Elementary SchoolCroydon, PA · 988 students
- Keystone Elementary SchoolLagrange, OH · 655 students
- Keystone ElementaryMemphis, TN · 446 students
- Keystone Elementary SchoolKnox, PA · 412 students
Nearby schools
- Benton Community Senior High School5.8 mi · 473
- Benton Community Middle School5.8 mi · 235
- Belle Plaine Jr/Sr High School8.6 mi · 205
- Longfellow Elementary School8.7 mi · 267
- Dysart-Geneseo Elementary School12.9 mi · 219
- Union Middle School12.9 mi · 194
Frequently asked questions
About Keystone Elementary SchoolWhat is the total enrollment at Keystone Elementary School?
Keystone Elementary School enrolls approximately 176 students in grades PK-03.
What grades does Keystone Elementary School serve?
Keystone Elementary School serves grades PK-03.
How many teachers does Keystone Elementary School have?
Keystone Elementary School employs 12 FTE teachers, for a student-to-teacher ratio of 14.8:1.
What is the racial breakdown of students at Keystone Elementary School?
At Keystone Elementary School, the student body is approximately 86% White, 6% Hispanic, 4% Black, 3% Two or more.
Is Keystone Elementary School public or private?
Keystone Elementary School is a public K-12 school, overseen by Benton Comm School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.