The top reported proficiency rate is 75% in Math. The lowest is 51% in Science.
Original Research by School Decision on Sunnyside Elementary School
Sunnyside Elementary School serves students from prekindergarten through fifth grade in Olathe, a large suburban city in Johnson County, Kansas. It is part of the Olathe school district, one of the larger districts in the state with dozens of elementary, middle, and high schools spread across the city. The school sits on the southern side of Olathe, in an area of residential subdivisions and commercial corridors typical of the region.
The school enrolls a modest number of students, with a student body that is predominantly white, alongside smaller shares of Black, Asian, Hispanic, and multiracial students. A relatively low share of students qualifies for free or reduced-price meals, indicating less economic diversity than many schools in the county. The grade-by-grade enrollment is fairly balanced through kindergarten to fifth grade, with a small prekindergarten program. This composition shapes the peer environment as one where most students come from middle- to upper-middle-income households, and the school reflects the broader demographics of southern Olathe.
Academically, Sunnyside posted strong results on the Kansas state assessments in the most recent testing year. In both English language arts and math, proficiency rates across grades three through five were solidly above most benchmarks, with math results particularly consistent. Third graders and fifth graders both showed high proficiency in math, while fourth-grade math was slightly lower but still strong. In ELA, the pattern was similar: all three tested grades performed well, with fifth graders again leading. The school’s overall proficiency index, which averages results across all tested subjects and grades, placed it in the top quarter when compared with other districts in Johnson County. That is a notably high position, even accounting for the fact that the comparison uses district-level data. One area where performance was weaker was science, assessed only in fifth grade, where roughly half of students scored at the proficient level or above. Parents may want to ask the school about science instruction and whether any recent changes have been made to address that difference. The state also adjusted its cut scores for these assessments, which means the results cannot be directly compared to prior years, so a trend is not available.
The school’s district, Olathe, has been managing both growth and contraction in recent years. Voters approved a bond issue that funds a new elementary school and facility upgrades without increasing the tax levy, which signals continued investment in infrastructure. At the same time, the school board voted to close three other elementary schools after the 2024-25 school year due to budget constraints and a decline in overall district enrollment. Sunnyside was not among the schools closed, but attendance boundaries will be redrawn, so families in some parts of Olathe may see changes in which elementary school their children attend. The district context matters for parents choosing a home: the area they buy into could shift assignment in the future.
Housing in the zip code area around the school is relatively expensive, with home values well above national and state medians. Rents are also above average. Olathe itself is a fast-growing city, the fourth-most populous in Kansas, with major employers such as Garmin, Honeywell, and Farmers Insurance. The built environment is auto-oriented, though the city maintains a network of trails and parks. Families moving to the area should expect a suburban lifestyle with a long commute to downtown Kansas City possible via Interstate 35.
For a family considering this elementary school, the picture is one of strong academic performance in the core subjects of reading and math, a relatively low-poverty student body, and a setting in a growing, affluent suburb. The science score is a soft spot worth investigating further. The district’s recent school closures and boundary changes mean that any decision tied to a specific address should be checked against current and future attendance maps. The school itself appears to be a well-regarded neighborhood option within a large district that is adapting to shifting enrollment.
See more original research from School Decision →