CORE4

CORE4 operates as a minimally staffed primary school in Greenfield, Wisconsin, overseen by Whitnall School District. Current enrollment sits at 87 students spanning grade pre-K. Compared to the state average of about 323 students per school, that is 73% below typical.

Whitnall School District comprises 5 schools with combined enrollment of 2,364 students; CORE4 is among them.

For racial and ethnic makeup, CORE4 lists that 72% of the student body identifies as White. The remainder breaks down as 14% Hispanic, 7% multiracial, 6% Asian. The wider county runs roughly 51% White, putting the school's mix meaningfully more White than the area baseline.

In terms of school funding signals, CORE4 reports 4 full-time-equivalent teachers, putting the student-to-teacher ratio at about 21.8:1. That figure is higher than the state norm's 14.7:1 average. About 25% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. That share is noticeably below Milwaukee County's rate of about 64%.

In the area at large, community-level numbers for Milwaukee County indicate median household earnings sit near $64,435, roughly 35% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 13%. Across Milwaukee County's 284 public schools (combined enrollment of about 122,496 students), CORE4 is one campus in the mix.

Nearest neighbor: Edgerton Elementary, around 0.0 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius.

CORE4 operates from a bedroom-community location. CORE4 is a charter school, which puts it inside the public-school system but outside the standard district-managed model.

Looking at the recent track record. Over the past 7-year window, the student count declined 23%: 113 students in 2018 compared to 87 in 2025. The Hispanic share of enrollment grew from 6% to 14% over that span. Class-load math has tightened: from 37.7:1 in 2018 to 21.8:1 in 2025.

Within the allk12 community for this school, the page collects discussion, questions, and updates around enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.