Average Private High School endowment in Illinois (2026-27)

Show school map — Illinois (endowment range: $2–$68, avg $22)

Endowment Range: $1.7M $68M Avg. Endowment: $22M

Average Private High School endowment in Illinois (2026-27)

Showing 9 schools

#1Francis W. Parker School

Gr: PK-12 | 907 students

Sports: 11

330 W Webster Ave

Chicago, IL 60614

(773) 797-5107

(6)

$68endowment

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#2Lake Forest Academy

Gr: 9-12 | 452 students

Avg. class size: 12 students

Sports: 15 | Extracurriculars: 25

1500 W Kennedy Rd

Lake Forest, IL 60045

(847) 615-3257

$62endowment

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#3North Shore Country Day School

Gr: PK-12 | 520 students

Avg. class size: 12 students

Sports: 12 | Extracurriculars: 4

310 Green Bay Rd

Winnetka, IL 60093

(847) 446-0674

$35endowment

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#4Benet Academy

Gr: 9-12 | 1,265 students

Avg. class size: 24 students

Catholic

2200 Maple Ave

Lisle, IL 60532

(630) 719-2782

$20endowment

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Map of Unity Christian Elementary School

#5Unity Christian Elementary School

Gr: K-12 | 150 students

Avg. class size: 12 students

Christian

1000 11th Ave

Fulton, IL 61252

(815) 589-3912

$4endowment

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Josephinum Academy Of The Sacred Heart Photo

#6 Josephinum Academy Of The Sacred Heart

Gr: 9-12 | 132 students

Avg. class size: 12 students

Sports: 7 | Extracurriculars: 20

All-girls (Catholic)

1501 North Oakley Boulevard

Chicago, IL 60622

(773) 276-1261

$3endowment

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#7(��7–T8) St. Viator High School

Gr: 9-12 | 808 students

Avg. class size: 25 students

Catholic

1213 E Oakton St

Arlington Heights, IL 60004

(847) 392-4050

$2endowment

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#7(��7–T8)Westminster Christian School

Gr: PK-12 | 314 students

Avg. class size: 20 students

Sports: 6 | Extracurriculars: 9

Presbyterian

2700 W Highland Avenue

Elgin, IL 60124

(847) 695-0310

(6)

$2endowment

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#9Rockford Lutheran School

Gr: PK-12 | 748 students

Avg. class size: 18 students

Sports: 14 | Extracurriculars: 10

Lutheran Church Missouri Synod

3411 N Alpine Rd

Rockford, IL 61114

(815) 877-9551

(2)

$2endowment

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Frequently Asked Questions

What are the private high schools with the highest endowment in Illinois?

The top ranked private high schools in Illinois include Francis W. Parker School, Lake Forest Academy and North Shore Country Day School.

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