Mill Creek School, Geneva IL - Test Scores & Data

Original Research by School Decision on Mill Creek School

Mill Creek School serves kindergarten through fifth grade in Geneva, Illinois, as part of Geneva CUSD 304. The school sits on a campus setting removed from downtown, with just over three hundred students divided roughly evenly across its grade bands. In terms of academic performance, the school shows mixed results that warrant careful attention, particularly in math.

Reading performance is stronger than math. In English language arts, students in grade three scored proficiently at rates solidly above midpoint, with grade four performing similarly well. By grade five, proficiency rates dipped but remained meaningful. Science results for fifth grade were also solid. Math, however, presents a different picture. In third grade, about two-thirds of students met proficiency standards, but proficiency declined as grades advanced: by fourth grade it fell to roughly half, and by fifth grade to around two-fifths. This downward slope across consecutive grades suggests that foundational gaps may widen as mathematical concepts build on earlier skills. A parent considering Mill Creek might want to look into further detail with the school about how it supports students who fall below proficiency, what intervention resources exist, and how the curriculum addresses the grade-to-grade performance pattern, especially before transitioning to middle school.

The school's proficiency index, which averages performance across tested subjects and grades, places it above the midpoint among districts in Kane County, indicating that while math is a soft spot, the school's overall standing in the county is respectable.

Demographically, Mill Creek is predominantly white, with smaller shares of Hispanic students, Asian students, and other groups represented. Exact enrollment numbers by free-or-reduced-price lunch status, special education, or English learner status were not available in the school's data. The school draws from a Geneva community that is mixed-income and mixed-use, anchored by a historic downtown with Metra access to Chicago but also a substantial residential footprint. Housing costs in the area are above national benchmarks, and recent development is focused on infill rather than greenfield expansion, including townhome and mixed-use projects. Growth is modest; the community's population has flattened after expansion in the 1980s and 1990s.

A major shift on the horizon may reshape Mill Creek's enrollment and resources. The district board approved a developer donation agreement in 2025 for a large residential annexation in Campton Hills that will bring hundreds of new homes into the district over the next fifteen to twenty years, with per-residence payments to offset school costs. This addresses a long-standing concern about unfunded student growth. For families already here or considering the school, this signals both growth pressures and committed infrastructure funding. Class sizes and enrollment composition may shift as the project develops.

State testing data notes that proficiency cut scores changed for 2024-25, so year-to-year comparisons are not directly comparable.

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Academic performance

How students perform on state tests, by grade, set against the district.

Math

Grade 364%

School 64% · District 63% · ▲ 1 pts above district

▲ 18 pts above state median · ▲ 12 pts above county median

Grade 448%

School 48% · District 59% · ▼ 10 pts below district

▲ 12 pts above state median · ▲ 2 pts above county median

Grade 539%

School 39% · District 52% · ▼ 12 pts below district

▲ 9 pts above state median · ▲ 6 pts above county median

English language arts

Grade 375%

School 75% · District 61% · ▲ 14 pts above district

▲ 31 pts above state median · ▲ 30 pts above county median

Grade 472%

School 72% · District 73% · ▼ 1 pts below district

▲ 24 pts above state median · ▲ 24 pts above county median

Grade 567%

School 67% · District 75% · ▼ 8 pts below district

▲ 15 pts above state median · ▲ 12 pts above county median

Science

Grade 568%

School 68% · District 65% · ▲ 3 pts above district

▲ 31 pts above state median · ▲ 28 pts above county median

This schoolGeneva CUSD 304, same grade

Graduation rate (ACGR) reflects the federally published Adjusted Cohort Graduation Rate for the most recent year available. We refresh this data annually at the close of each academic year in June. The federal source publishes a banded rate (for example, "90-94%") instead of an exact number for cohorts small enough to risk identifying individual students. The state distribution chart, where shown, plots every school in the state with a published rate or band; schools whose rate is federally suppressed are excluded. Where the federal source publishes a band rather than an exact rate, the school is placed within its band using a stable, ID-derived offset, so its position is consistent across visits.