Private School Review - Established 2003
Ann & Nate Levine Academy Photo
Ann & Nate Levine Academy

Best Texas Private Schools Belonging to Independent Schools Association of the South West (ISAS) (2025-26)

For the 2025-26 school year, there are 48 private schools belonging to Independent Schools Association of the South West (ISAS) serving 28,084 students in Texas. You can also find more schools membership associations in Texas.
The top ranked private schools belonging to Independent Schools Association of the South West (ISAS) in Texas include Saint Mary's Hall, The John Cooper School, and Keystone School.
The average tuition cost is $27,639, which is higher than the Texas private school average tuition cost of $14,045.
54% of private schools belonging to Independent Schools Association of the South West (ISAS) in Texas are religiously affiliated (most commonly Episcopal and Catholic).

Top Ranked Private Schools Belonging to Independent Schools Association of the South West (ISAS) in Texas (2025-26)

School
Location
Quick Facts
Austin International School
Austin International School Photo
Special Program Emphasis
(1)
4001 Adelphi ln
Austin, TX 78727
(512) 331-7806
Gr: PK-8 | 286 students Avg. class size: 18 students Sports: 3 | Extracurrculars: 12 Tuition listed
Girls' School Of Austin
Girls' School Of Austin Photo
All-girls
2007 Mccall Rd
Austin, TX 78703
(512) 478-7827
Gr: K-8 | 154 students Avg. class size: 18 students Tuition listed
Fort Worth Academy
Fort Worth Academy Photo
Special Program Emphasis
(11)
7301 Dutch Branch Rd
Fort Worth, TX 76132
(817) 370-1191
Gr: K-8 | 200 students Avg. class size: 15 students Sports: 9 | Extracurrculars: 5 Tuition & acceptance rate listed
Allen Academy
Allen Academy Photo
(3)
3201 Boonville Rd
Bryan, TX 77802
(979) 776-0731
Gr: PK-12 | 327 students Avg. class size: 12 students Sports: 11 | Extracurrculars: 13 Tuition & acceptance rate listed
Ann & Nate Levine Academy
Ann & Nate Levine Academy Photo
(Jewish)
(1)
18011 Hillcrest Rd
Dallas, TX 75252
(972) 248-3032
Gr: NS-8 | 481 students Avg. class size: 14 students Sports: 7 | Extracurrculars: 9 Tuition & acceptance rate listed
Annunciation Orthodox School
Annunciation Orthodox School Photo
(Greek Orthodox)
(5)
3600 Yoakum Blvd
Houston, TX 77006
(713) 470-5600
Gr: NS-8 | 699 students Avg. class size: 18 students Sports: 14 | Extracurrculars: 15 Tuition & acceptance rate listed
Austin Waldorf School
Austin Waldorf School Photo - Grade Two Classroom
Special Program Emphasis
8700 South View Road
Austin, TX 78737
(512) 288-5942
Gr: PK-12 | 421 students Avg. class size: 28 students Sports: 8 | Extracurrculars: 3 Tuition listed
Cistercian Preparatory School
Cistercian Preparatory School Photo
All-boys | Special Program Emphasis (Catholic)
3660 Cistercian Road
Irving, TX 75039
(469) 499-5400
Gr: 5-12 | 357 students Avg. class size: 22 students Sports: 9 | Extracurrculars: 7 Tuition listed
Duchesne Academy Of The Sacred Heart
Duchesne Academy Of The Sacred Heart Photo - Duchesne Academy of the Sacred Heart is Houston's only all-girls' Catholic school offering Pre-K3 through 12th-grade education.
All-girls (Catholic)
(5)
10202 Memorial Dr
Houston, TX 77024
(713) 468-8211
Gr: PK-12 | 813 students Sports: 13 | Extracurrculars: 8 Tuition & acceptance rate listed
The Emery/Weiner School
The Emery/Weiner School Photo - A number of students participate in arts programs at Emery/Weiner. Extracurricular opportunities in the arts include theater, dance, choir, band, and studio art offerings.
(Jewish)
(1)
9825 Stella Link Rd
Houston, TX 77025
(832) 204-5900
Gr: 6-12 | 604 students Avg. class size: 15 students Sports: 15 | Extracurrculars: 13 Tuition listed
Episcopal High School
Episcopal High School Photo
(Episcopal)
4650 Bissonnet St
Bellaire, TX 77401
(713) 512-3400
Gr: 9-12 | 846 students Avg. class size: 14 students Sports: 16 | Extracurrculars: 29 Tuition listed
The Episcopal School Of Dallas
The Episcopal School Of Dallas Photo - Lower School students enjoy parks, playgrounds, and nature trails around our 80+ acre campus in the heart of North Dallas.
(Episcopal)
4100 Merrell Rd
Dallas, TX 75229
(214) 358-4368
Gr: NS-12 Avg. class size: 16 students Sports: 21 | Extracurrculars: 52 Tuition listed
Fort Worth Country Day
Fort Worth Country Day Photo - Fort Worth Country Day (FWCD) is a JK-12 private, independent, coeducational, nondenominational college-preparatory school located on approximately 100 acres in Fort Worth, Texas. The mission of Fort Worth Country Day School is to foster the intellectual, physical, emotional, and ethical development of capable students through an academically rigorous college preparatory program that integrates the arts and athletics.
(3)
4200 Country Day Lane
Fort Worth, TX 76109
(817) 302-3209
Gr: K-12 | 1,097 student Avg. class size: 16 students Sports: 16 | Extracurrculars: 26 Tuition listed
Good Shepherd Episcopal School
Good Shepherd Episcopal School Photo
(Episcopal)
11110 Midway Rd
Dallas, TX 75229
(214) 357-1610
Gr: PK-8 | 536 students Avg. class size: 15 students Tuition & acceptance rate listed
Greenhill School
Greenhill School Photo
4141 Spring Valley Road
Addison, TX 75001
(972) 628-5400
Gr: PK-12 | 1,322 student Avg. class size: 18 students Sports: 15 Tuition & acceptance rate listed
Headwaters School
Headwaters School Photo - Headwaters Students are Peacemakers, Advocates, Creators, and Thinkers ranging from 18 months to high school seniors.
Montessori School
(3)
807 Rio Grande
Austin, TX 78701
(512) 480-8142
Gr: PK-12 | 525 students Avg. class size: 20 students Sports: 4 | Extracurrculars: 10 Tuition listed
The Hockaday School
The Hockaday School Photo
All-girls
11600 Welch Road
Dallas, TX 75229
(214) 360-6526
Gr: PK-12 | 1,110 student Avg. class size: 16 students Sports: 17 Tuition & acceptance rate listed
Houston Christian High School
Houston Christian High School Photo - The "Passport to Lead" program's vision is to inspire young people to lead by uniting faith, intellect and gifts to reach their greatest promise. We teach our students to take the lead to influence people to achieve a common goal and, through this process, honor God. In addition, leadership topics are integrated in the curriculum of every course taught at HC.
(Christian)
(1)
2700 W Sam Houston Parkway N
Houston, TX 77043
(713) 580-6000
Gr: 9-12 | 540 students Avg. class size: 17 students Sports: 17 | Extracurrculars: 12 Tuition & acceptance rate listed
Jack Segal Academy (formerly BYDS)
Jack Segal Academy (formerly BYDS) Photo - Segal Students playing on the new Rhona & Bruce Caress Playground and Sports Center
(Jewish)
4525 Beechnut St
Houston, TX 77096
(713) 666-1884
Gr: NS-5 | 362 students Avg. class size: 14 students Sports: 1 | Extracurrculars: 5 Tuition listed
The John Cooper School
The John Cooper School Photo - The Rock Math & Science Center
(11)
One John Cooper Drive
Spring, TX 77381
(281) 367-0900
Gr: PK-12 | 1,312 student Avg. class size: 18 students Sports: 14 | Extracurrculars: 21 Tuition & acceptance rate listed
Keystone School
Keystone School Photo - Keystone School Upper School Students
(6)
119 E Craig Place
San Antonio, TX 78212
(210) 735-4022
Gr: NS-12 | 491 students Avg. class size: 16 students Sports: 5 | Extracurrculars: 21 Tuition listed
Lakehill Preparatory School
Lakehill Preparatory School Photo
(3)
2720 Hillside Drive
Dallas, TX 75214
(214) 826-2931
Gr: K-12 | 390 students Avg. class size: 14 students Sports: 12 | Extracurrculars: 29 Tuition listed
The Montessori School Of San Antonio
The Montessori School Of San Antonio Photo
Montessori School
(1)
17722 Rogers Ranch Parkway
San Antonio, TX 78258
(210) 492-3553
Gr: PK-8 | 297 students Avg. class size: 24 students Tuition listed
The Oakridge School
The Oakridge School Photo - In the past five years, 100% of Oakridge's graduates have been accepted to four-year colleges.
(10)
5900 West Pioneer Parkway
Arlington, TX 76013
(817) 451-4994
Gr: PK-12 | 682 students Avg. class size: 15 students Sports: 15 | Extracurrculars: 47 Tuition & acceptance rate listed
Parish Episcopal School
Parish Episcopal School Photo - The new Gymnasium at Parish Sigma campus.
(Episcopal)
(4)
4101 Sigma Road
Dallas, TX 75244
(972) 239-8011
Gr: PK-12 | 1,124 student Avg. class size: 16 students Sports: 16 Tuition & acceptance rate listed
The Post Oak School
The Post Oak School Photo - Middle School (D.C. trip)
Montessori School
(2)
4600 Bissonnet St
Bellaire, TX 77401
(713) 661-6688
Gr: NS-12 | 484 students Avg. class size: 28 students Sports: 7 | Extracurrculars: 16 Tuition & acceptance rate listed
Presbyterian School
Presbyterian School Photo - Middle School students participate in the School's BYOiPad program. Each student has his/her own iPad to complete class work and assignments. Other digital resources for learning include laptops, Smart Boards, and Apple TV.
(Presbyterian)
(1)
40 Oakdale Street
Houston, TX 77006
(713) 520-0284
Gr: PK-8 | 643 students Avg. class size: 16 students Sports: 12 | Extracurrculars: 6 Tuition & acceptance rate listed
The Regis School Of The Sacred Heart
The Regis School Of The Sacred Heart Photo
All-boys (Catholic)
(7)
7330 Westview Dr
Houston, TX 77055
(713) 682-8383
Gr: PK-8 | 251 students Avg. class size: 16 students Sports: 8 Tuition & acceptance rate listed
River Oaks Baptist School
River Oaks Baptist School Photo
(Christian)
(1)
2300 Willowick Rd
Houston, TX 77027
(713) 623-6938
Gr: NS-8 | 930 students Avg. class size: 18 students Sports: 11 | Extracurrculars: 25 Tuition & acceptance rate listed
St. Andrew's Episcopal School (Southwest Parkway Campus)
St. Andrew's Episcopal School (Southwest Parkway Campus) Photo
(Episcopal)
5901 Southwest Pkwy
Austin, TX 78735
(512) 299-9700
Gr: 9-12 | 985 students Avg. class size: 16 students Sports: 17 | Extracurrculars: 54 Tuition listed
St. Clement's Parish School
(Christian)
600 Montana Avenue
El Paso, TX 79902
(915) 533-4248
Gr: NS-8 Avg. class size: 15 students Sports: 6 | Extracurrculars: 5 Tuition & acceptance rate listed
St. Francis Episcopal School
St. Francis Episcopal School Photo - St. Francis Episcopal School Piney Point Village Campus
(Episcopal)
335 Piney Point Road
Houston, TX 77024
(713) 458-6159
Gr: PK-12 | 875 students Avg. class size: 15 students Sports: 15 Tuition & acceptance rate listed
St. Lukes Episcopal School
St. Lukes Episcopal School Photo
(Episcopal)
(4)
15 St. Lukes Lane
San Antonio, TX 78209
(210) 826-0664
Gr: PK-8 | 238 students Avg. class size: 25 students Sports: 9 Tuition & acceptance rate listed
St. Mark's School Of Texas
St. Mark's School Of Texas Photo - St. Mark's School of Texas campus
All-boys (Episcopal)
(1)
10600 Preston Road
Dallas, TX 75230
(214) 346-8700
Gr: 1-12 | 924 students Avg. class size: 15 students Sports: 16 Tuition & acceptance rate listed
Saint Mary's Hall
Saint Mary's Hall Photo - Saint Mary's Hall
9401 Starcrest Dr
San Antonio, TX 78217
(210) 483-9100
Gr: PK-12 | 884 students Avg. class size: 15 students Sports: 21 | Extracurrculars: 23 Tuition listed
Show 13 more private schools in Texas (out of 48 total schools)
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