Lahore Grammar School (LGS) is a type of private academic institution.
It was established in the year 1979.
It provides education to boys and girls until A Levels. The LGS College for Women offers a degree programme in arts and sciences as well as a bachelors in computers. LGS has branches in Islamabad, Karachi, Quetta, Peshawar, Multan, Faisalabad, Sialkot, Gujranwala, Gujrat, and Wah Cantt.
As you have asked about the LGS Schools in defferent locations see below for the information
DHA and Lahore Cantt

Defence boys branch 483/4 Education City, Phase V, DHA
Defence girls branch 136-E, Phase I, DHA
Defence preschool 136-E, Phase I, DHA
Paragon City branch Paragon City, Burki Road, Lahore Cantt

Gulberg

31-FCC branch 31-FCC, Gulberg IV
1-A-1 Ghalib Market branch 1 Block A/1, Gulberg III
39 Main Gulberg branch 39, Main Gulberg
55 Main Gulberg branch 55, Main Gulberg
6E-III Gulberg branch 6-E/III, Gulberg III
94-B1 Gulberg branch 94 B/1, Gulberg III

Johar Town
Johar Town Junior Boys Branch 254-F/1, Johar Town
Johar Town Senior Boys Branch 364, E/1, Johar Town
Johar Town Girls Branch 247/248 D-11, Johar Town
Johar Town Pre-School 247/248 D-11, Johar Town

Model Town
14-K Model Town branch 14-K Model Town
18-K Model Town branch 18-K, Model Town
137-E Model Town branch 137-E, Model Town

DHA-EME sector
DHA EME Sector branch 136 H Block EME Sector, Multan Road

Shah Jamal
Shah Jamal branch 1-Shah Jamal

Township
Township branch C-Block College Road, Township

Wah Cantt
Wah Cantt branch The Mall