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SCHOOL COMMUNITY·OLATHE·NCES 201014001704

Mahaffie Elem

1300 N Nelson Rd, Olathe, KS 66061 · (913) 780-7530 · Johnson County
GRADES PK–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL449 STUDENTS
Enrollment
449
Elementary
DISTRICT 350 · STATE 313
Student : Teacher
14.4:1
31 FTE teachers
DISTRICT 13.2:1 · STATE 13.2:1
Free / Reduced Lunch
44%
196 students
DISTRICT 31% · STATE 51%
Community
5
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

GradeStudentsShare
Pre-K409%
Kindergarten7416%
Grade 17416%
Grade 26615%
Grade 38218%
Grade 45111%
Grade 56214%

This year's kindergarten class (74) is 19% larger than its 5th grade class (62).

Student demographics
61%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 57% · STATE 58% · US 70%
White
25657%
DISTRICT 62% · STATE 60% · US 43%
Hispanic
10122%
DISTRICT 20% · STATE 23% · US 30%
Black
337%
DISTRICT 8% · STATE 7% · US 15%
Asian
153%
DISTRICT 4% · STATE 3% · US 6%
Two+
429%
DISTRICT 5% · STATE 6% · US 5%
Native American
20%
DISTRICT 0% · STATE 1% · US 1%
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
Male
23352%
Female
21648%

Discussions

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Test scores

KAP 2024-25 . % Meeting + Exceeding
English Language Arts
51.8%
KS avg 44.5%
Math
49.2%
KS avg 38.8%

What this means: On the KAP, Kansas's statewide test, about 52 of every 100 students at this school read and write at grade level and about 49 of 100 do math at grade level. Across all Kansas schools, those numbers are about 45 and 39.

KAP results by year

School yearEnglish Language ArtsMath
2024-2551.8%49.2%
2023-2437.2%41.9%
% Meeting + Exceeding, all students and all tested grades. Kansas set new KAP cut scores in spring 2025, so results from 2023-24 and earlier are not comparable with later years.
Source: KAP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
44.0%
composite math + reading, all grades
Predicted
41.3%
based on KS schools with similar FRL share
Beats by
+2.7pp
above demographic expectation

What this means: About 44% of students here test proficient in math and reading, compared with the roughly 41% typical for Kansas schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Kansas's top nor bottom 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 Mahaffie Elem

Mahaffie Elem's state test result (44.0% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Mahaffie Elem this school44943.7%44.0%
Bluejacket-Flint
Shawnee
39545.1%51.8%
Sunflower Elementary
Lawrence
44443.0%49.9%
Roesland Elem
Roeland Park
35045.4%61.2%
Brookridge Elem
Overland Park
54847.3%44.3%
Clark Davidson Elem
Goddard
46240.5%50.5%
Matched among Kansas 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 Mahaffie Elem ranks

Among elementary schools
MeasureThis schoolIn KansasIn Johnson County
State test proficiency
ranked highest first
44.0%#312 of 625#89 of 111
Math proficiency
ranked highest first
49.2%#215 of 625#81 of 111
Reading proficiency
ranked highest first
51.8%#281 of 625#86 of 111
Enrollment
ranked largest first
449#115 of 714#33 of 112
Students per teacher
ranked fewest first
14.4:1#371 of 539#69 of 108
Diversity index
ranked most diverse first
60.9%#144 of 540#26 of 108
Free and reduced lunch
ranked highest share first
43.7%#440 of 658#32 of 111
Enrollment change since 2017-18
ranked fastest growth first
+10.0%#73 of 151#11 of 28
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 2024-25
Enrollment
449
+31 (+7%) vs 2020
-8% since 2000-01, when it was 487
Student : Teacher
14.4:1
was 13.9:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2544931.214.4:144% (196)
2023-2444130.814.3:146% (202)
2022-2342328.115.1:143% (182)
2020-214183013.9:133% (138)
2017-1840825.915.8:130% (123)
2015-16418N/AN/A34% (142)
2010-114302318.7:127% (118)
2000-014873314.8:17% (33)
Source: NCES Common Core of Data. Rows are the federal collections on file for Mahaffie Elem.

Since 2017-18: students up 10% (408 to 449); teachers up 20% (25.9 to 31.2).

About Mahaffie Elem

In Olathe, Kansas, Mahaffie Elem is a medium-sized elementary school. The school serves 449 students in pre-K through 5 in 2024-25. For comparison, elementary schools in Kansas average about 313 students.

Olathe has 52 schools and 28,194 students, and Mahaffie Elem is one of those schools.

White students are the majority at Mahaffie Elem, with 57% of enrollment. Other groups include 22% Hispanic, 9% multiracial, 7% Black, and 3% Asian. The county population is about 79% White. Pick two students at random and there is a 61% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

The school reports 31.2 full-time-equivalent teachers, which works out to about 14.4 students per teacher. That is 1.2 students per teacher above the 13.2:1 average for elementary schools in Kansas. Free or reduced-price lunch eligibility covers 44% of students. The average for public schools in Johnson County is 27%.

Schools in Kansas with a similar free or reduced-price lunch share are predicted to score about 41.3%. Mahaffie Elem scores 44.0%.

In the county around the school, Johnson County, the median household income is $109,208, 58% of adults hold a bachelor's degree or higher, and about 3% of people live in poverty. There are 168 public schools in Johnson County, enrolling about 93,598 students in all.

Of nearby public schools, Washington Elem is the closest, at about 0.5 miles. Mahaffie Elem has at least 8 other public schools within five miles. Nearby schools with test data average 38.9% proficiency; Mahaffie Elem posts 44.0%.

On the NCES locale scale, the school is Suburb: Large.

2024-25 enrollment was 449, a 7% increase from 418 in 2020-21.

Community posts for Mahaffie Elem can cover school safety, transportation, and start times. Questions from prospective families are welcome too.

Johnson County at a glance

View full county profile
Population
620,631
Census ACS
Median income
$109,208
Household, ACS
Bachelor's+
58%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
168
93,598 students

Quick facts

School name
Mahaffie Elem
District
Olathe
Address
1300 N Nelson Rd, Olathe, KS 66061
Phone
(913) 780-7530
County
Johnson County
Level
Elementary
Grade range
PK–05
Total enrollment
449
Teachers (FTE)
31
Student–teacher ratio
14.4:1
Free and reduced lunch
196 (44%)
Locale
21-Suburb: Large
NCES ID
201014001704
Charter school
No
Virtual school
No

Related schools

Other schools in Olathe
Other schools in Olathe
Nearby schools

Frequently asked questions

About Mahaffie Elem
How large is Mahaffie Elem?
Mahaffie Elem enrolls approximately 449 students in grades PK-05.
What age range does Mahaffie Elem serve?
Mahaffie Elem serves students from grade PK through grade 05.
What is the student-teacher ratio at Mahaffie Elem?
The student-to-teacher ratio at Mahaffie Elem is approximately 14.4:1 (31 FTE teachers).
How diverse is Mahaffie Elem?
Mahaffie Elem reports a student body of 57% White, 22% Hispanic, 7% Black, 3% Asian, 9% Two or more.
Who oversees Mahaffie Elem?
Mahaffie Elem is overseen by Olathe in Johnson County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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