Crystal Lake South High School Alumni

Class of '90 Homepage

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Crystal Lake South High School - Class of 1990 Alumni

Join thousands of alumni from Crystal Lake South High School and the Class of 1990. Reconnect with classmates, photos, yearbooks, upcoming reunions.

Varsity Football Schedule 2026-27

08/20 vs Prairie Ridge
08/27 vs Central
09/03 vs McHenry
09/10 vs Huntley
09/17 vs Crystal Lake Central
09/24 vs Dundee‑Crown
10/01 vs Hampshire
10/08 vs Cary‑Grove
10/15 vs Jacobs

'90 Reunion Info

CLS 20 Year Reunion

View Details →

Crystal Lake South '90 Apparel

 Browse our apparel store for a wide range of Gators gear, from t-shirts and hoodies, to caps and accessories.

Class Yearbook

View past yearbooks
Yearbook Page
Yearbook Page
Yearbook Page
Yearbook Page

Recently joined '90 Classmates

Jacqueline Macdonald

Jacqueline Macdonald
Class of 1990

Stephanie Campbell

Stephanie Campbell
Class of 1990

Piethein Leune

Piethein Leune
Class of 1990

Bobbi Lehan

Bobbi Lehan
Class of 1990

Erik Christenson

Erik Christenson
Class of 1990

Kristin Janus

Kristin Janus
Class of 1990

Staci Stift

Staci Stift
Class of 1990

Dan Esquivel

Dan Esquivel
Class of 1990

Oscar Castillo

Oscar Castillo
Class of 1990

Nearby Crystal Lake South Classmates

Class of 1988

73 classmates have joined

View Class of 1988 Alumni

Class of 1989

57 classmates have joined

View Class of 1989 Alumni

Class of 1991

69 classmates have joined

View Class of 1991 Alumni

Class of 1992

42 classmates have joined

View Class of 1992 Alumni