Sierra High School - Class of 1999 Alumni, Manteca CA
Join thousands of alumni from Sierra High School and the Class of 1999. Reconnect with classmates, photos, yearbooks, upcoming reunions.
Varsity Football Schedule 2026-27
08/27 vs Enochs
09/03 vs Lathrop
09/10 vs Modesto
09/16 vs Gregori
09/24 vs Oakdale
10/08 vs Mountain House
10/15 vs Manteca
10/22 vs Central Catholic
11/05 vs Patterson
09/03 vs Lathrop
09/10 vs Modesto
09/16 vs Gregori
09/24 vs Oakdale
10/08 vs Mountain House
10/15 vs Manteca
10/22 vs Central Catholic
11/05 vs Patterson
Upcoming Class of 1999 Reunions
Browse past reunion events and photos for your class here.Past Class of 1999 Reunions
Browse past reunion events and photos for your class here.Class Yearbook
View past yearbooks
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Class of 1997
11 classmates have joined
Class of 1998
18 classmates have joined
Class of 2000
15 classmates have joined
Class of 2001
22 classmates have joined