
INDEPENDENT SCHOOL LEAGUE: A PREMIER ATHLETICS CONFERENCE FOR BOSTON-AREA PRIVATE SCHOOLS
The Independent School League is an interscholastic athletic conference founded in 1948 whose membership is made up of a number of leading New England prep schools, mainly in the Boston area. ISL members (as the league is more commonly known) comprise some of the nation’s most famous and prestigious schools who collaborate and compete academically and athletically. The league operates strict rules regarding athletic scholarships and academic performance whilst also prohibiting the participation of postgraduate students. As such, it has often been referred to as the Ivy League of high schools (a reference enjoyed by a select few other school sports leagues – mostly within NEPSAC).
ABOUT
The league is one of the various leagues that operate under the New England Preparatory School Athletics Council. It has sixteen members: Belmont Hill; Brooks; BB&N; Governors; Groton; Lawrence; Middlesex; Milton; Nobles; Rivers; Roxbury Latin; St. George’s; St. Mark’s; St. Sebastian’s; Tabor; and Thayer. St. Paul’s was formerly a member and still maintains rivalries and a close association with many of the schools.
The schools compete in a number of sanctioned sports including: athletics (track & field); baseball; basketball; crew (rowing); cross country; diving; football (association / soccer); football (gridiron); golf; hockey (field); hockey (ice); lacrosse; sailing; skiing; softball; squash; swimming; tennis; volleyball; and wrestling. However many of the schools compete in additional sports or may compete against other schools in the same sports outside of the league structure. As the schools do not allow postgraduate participation in varsity sports, many of the schools do not offer a postgraduate year programme unlike other top-tier prep schools in the USA.
A list of member schools can be found below.
MEMBERS AND ASSOCIATES
CHOOSE LIST VIEW FOR A SIMPLE LIST OF ALL LISTED SCHOOLS. ALTERNATIVELY, YOU CAN SELECT SCHOOLS USING THE MAP BELOW.
BELMONT HILL SCHOOL
350 PROSPECT STREET, BELMONT, MASSACHUSETTS 02478, UNITED STATES
MIDDLE AND HIGH SCHOOL
BOARDING SCHOOL
BOYS SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
ABOUT
BROOKS SCHOOL
1160 GREAT POND ROAD, NORTH ANDOVER, MASSACHUSETTS 01845, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
ABOUT
ESTABLISHED 1926
FEE-PAYING
BOARDING & DAY
CO-EDUCATIONAL
AGES 14 – 18 (GRADES 9 – 12)
EPISCOPAL
BUCKINGHAM BROWNE & NICHOLS
BB&N
80 GERRY’S LANDING, CAMBRIDGE, MASSACHUSETTS 02138, UNITED STATES
PRE-SCHOOL, ELEMENTARY, MIDDLE AND HIGH SCHOOL
ALL-THROUGH SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
ABOUT
THE GOVERNOR’S ACADEMY
GOVERNOR DUMMER’S ACADEMY / GOVERNOR’S
1 ELM STREET, BYFIELD, MASSACHUSETTS 01922, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL

ABOUT
ESTABLISHED 1763
FEE-PAYING
BOARDING & DAY
CO-EDUCATIONAL
AGES 14 – 18 (GRADES 9 – 12)
GROTON
GROTON SCHOOL
282 FARMERS ROW, GROTON, MASSACHUSETTS 01450, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
FAITH SCHOOL
INDEPENDENT SCHOOL
ABOUT
ESTABLISHED 1884
FEE-PAYING
BOARDING & DAY
CO-EDUCATIONAL
AGES 13- 18 (GRADES 8 – 12)
EPISCOPAL
LAWRENCE ACADEMY
LA / LAWRENCE ACADEMY AT GROTON
26 POWDERHOUSE ROAD, GROTON, MASSACHUSETTS 01450, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
INTERNATIONAL SCHOOL

ABOUT
MIDDLESEX
MX
1400 LOWELL ROAD, CONCORD, MASSACHUSETTS 01742, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
ABOUT
MILTON ACADEMY
170 CENTRE STREET, MILTON, MASSACHUSETTS 02186, UNITED STATES
PRE-SCHOOL, ELEMENTARY, MIDDLE AND HIGH SCHOOL
ALL-THROUGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
ABOUT
NOBLE AND GREENOUGH SCHOOL
NOBLES
10 CAMPUS DRIVE, DEDHAM, MASSACHUSETTS 02026, UNITED STATES
MIDDLE AND HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
ABOUT
RIVERS
THE RIVERS SCHOOL
333 WINTER STREET, WESTON, MASSACHUSETTS 02493, UNITED STATES
MIDDLE AND HIGH SCHOOL
COLLEGE-PREPARATORY SCHOOL
COUNTRY DAY SCHOOL
INDEPENDENT SCHOOL
MUSIC CONSERVATORY
PERFORMING ARTS SCHOOL (MUSIC)
ABOUT
THE ROXBURY LATIN SCHOOL
RL
101 SAINT THERESA AVENUE, WEST ROXBURY, MASSACHUSETTS 02132, UNITED STATES
MIDDLE AND HIGH SCHOOL
BOYS SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
ABOUT
ST. GEORGE’S SCHOOL
372 PURGATORY ROAD, MIDDLETOWN, RHODE ISLAND 02842, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
FAITH SCHOOL
INDEPENDENT SCHOOL
ABOUT
ESTABLISHED 1896
FEE-PAYING
BOARDING & DAY
CO-EDUCATIONAL
AGES 14 – 18 (GRADES 9 – 12)
EPISCOPAL
ST. MARK’S SCHOOL
25 MARLBORO ROAD, SOUTHBOROUGH, MASSACHUSETTS 01722, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
FAITH SCHOOL
INDEPENDENT SCHOOL
ABOUT
ESTABLISHED 1865
FEE-PAYING
BOARDING
CO-EDUCATIONAL
AGES 14 – 18 (GRADES 9 – 12)
EPISCOPAL
ST. SEBASTIAN’S SCHOOL
SEB’S / ST. SEB’S
1191 GREENDALE AVENUE, NEEDHAM, MASSACHUSETTS 02492, UNITED STATES
MIDDLE AND HIGH SCHOOL
BOYS SCHOOL
COLLEGE-PREPARATORY SCHOOL
FAITH SCHOOL
INDEPENDENT SCHOOL
ABOUT
TABOR ACADEMY
THE SCHOOL BY THE SEA / TABOR
232 FRONT STREET, MARION, MASSACHUSETTS 02738, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
SCIENCE ACADEMY (MARINE SCIENCE)
ABOUT
THAYER ACADEMY
745 WASHINGTON STREET, BRAINTREE, MASSACHUSETTS 02184, UNITED STATES
MIDDLE AND HIGH SCHOOL
COLLEGE-PREPARATORY SCHOOL
INDEPENDENT SCHOOL
ABOUT
FORMER OR LAPSED MEMBERS AND ASSOCIATES
ST. PAUL’S SCHOOL
SPS
325 PLEASANT STREET, CONCORD, NEW HAMPSHIRE 03301, UNITED STATES
HIGH SCHOOL
BOARDING SCHOOL
COLLEGE-PREPARATORY SCHOOL
FAITH SCHOOL
INDEPENDENT SCHOOL
ABOUT
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