Mark DeLay School

Located at 6801 Wilmette Ave, in Darien, Illinois, Mark DeLay School is a medium-sized elementary-level community that educates 453 students (grades pre-K through 2), one of the schools within Darien SD 61.

Within Darien SD 61, which oversees 3 schools and 1,237 students, Mark DeLay School is one campus in the system.

For racial and ethnic makeup, Mark DeLay School lists that 56% of the student body identifies as White. The remainder reads as 19% Hispanic, 12% Black, 7% multiracial, 6% Asian. That is considerably less White than the county at large, where the share is closer to 65%.

On the resource side, Mark DeLay School logs 37 full-time-equivalent teachers, putting the student-to-teacher ratio at about 12.3:1. That figure is tighter than the state norm's 13.9:1 average. Around 34% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment.

In the area at large, community-level numbers for DuPage County indicate median household earnings sit near $112,096, roughly 52% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 5%. Across DuPage County's 277 public schools (combined enrollment of about 138,557 students), Mark DeLay School is one campus in the mix.

Westview Hills Middle School is the nearest neighboring public school, about 0.5 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Mark DeLay School.

The campus sits in a residential setting.

Five-year trend. Over the past 7-year window, the student count ticked down 15%: 533 students in 2018 compared to 453 in 2025. The Hispanic share of enrollment shrank from 23% to 19% over that span.

On allk12, posts here usually surface around fundraisers, lost-and-found posts, and report-card season. Anyone with firsthand experience at this school can post or comment.