PRIVATE SCHOOL RANKINGS were determined by Niche.com, which uses factors including SAT/ACT scores, the quality of colleges that students consider, student-teacher ratios, student and parent reviews, and much more. Represented here are the top 25 high schools on Niche’s list, including grades on academics, diversity, sports, and clubs and activities. 

 Ranking School Neighborhood Address City Grades Enrollment Religious Affiliation Student Body Academics Diversity Clubs and Activities Sports Average SAT/ACT Student-Teacher Ratio 2020-21 Highest-Grade Tuition
1 St. John's School Upper Kirby/ River Oaks 2401 Claremont Ln Houston K to 12 1,258 n/a Coed A+ B A B+ 1470/33 7:1 $31,350
2 The Kinkaid School Piney Point Village 201 Kinkaid School Dr Houston PK to 12 1,423 n/a Coed A+ B+ A+ A- 1410/32 10:1 $30,530
3 The Awty International School Spring Branch East 7455 Awty School Ln Houston PK to 12 1,731 n/a Coed A+ A+ A B 1360/30 8:1 $28,525
4 The John Cooper School The Woodlands 1 John Cooper Dr The Woodlands PK to 12 1,284 n/a Coed A+ A A+ B 1380/31 8:1 $28,790
5 St. Agnes Academy Shapstown 9000 Bellaire Blvd Houston 9 to 12 921 Catholic Female A+ A A+ A+ 1320/30 9:1 $21,280
6 The Village School Briarforest 13051 Whittington Dr Houston PK to 12 1,773 n/a Coed A+ A+ A- B- 1340/30 9:1 $29,375
7 Strake Jesuit College Preparatory School Sharpstown 8900 Bellaire Blvd Houston 9 to 12 1238 Catholic Male A+ A A+ A 1340/31 10:1 $22,700
8 The Emery/Weiner School Willowbend 9825 Stella Link Rd Houston 6 to 12 525 Jewish Coed A+ B- A+ B+ 1320/31 8:1 $28,075
9 Episcopal High School Bellaire 4650 Bissonnet Bellaire 9 to 12 747 Episcopal Coed A+ B+ A+ A- 1270/29 8:1 $31,050
10 St. Thomas High School Rice Military 4500 Memorial Dr Houston 9 to 12 590 Catholic Male A+ A A+ A- 1270/28 11:1 $19,270
11 Second Baptist School Tanglewood 6410 Woodway Dr Houston PK to 12 1010 Baptist Coed A+ n/a A A 1280/29 9:1 $23,640
12 Saint Thomas' Episcopal School Meyerland 4900 Jackwood St Houston K to 12 666 Episcopal Coed A+ A A- B 1250/29 6:1 $21,060
13 Duchesne Academy of the Sacred Heart Hunter's Creek Village 10202 Memorial Dr Houston PK to 12 703 Catholic Female A+ A- A- B- 1250/29 8:1 $27,000
14 The Post Oak School Bellaire 4600 Bissonnet Bellaire PK to 12 514 n/a Coed A+ A+ B+ C+ 1290/29 9:1 $29,792
15 British International School of Houston Energy Corridor 2203 N Westgreen Blvd Katy PK to 12 1120 n/a Coed A+ B+ N C 1310/30 5:1 $29,700
16 St. John XXIII College Preparatory Katy 1800 W Grand Parkway N Katy 9 to 12 444 Catholic Coed A+ A A- B+ 1260/29 7:1 $17,990
17 The Woodlands Christian Academy The Woodlands 5800 Academy Way The Woodlands PK to 12 654 Christian Coed A+ B+ A+ A 1230/27 7:1 $27,500
18 Houston Christian High School Northwest Houston 2700 W Sam Houston Pkwy N Houston 9 to 12 470 Christian Coed A+ B+ A B 1240/28 10:1 $26,400
19 School of the Woods Hillshire Village 1321 Wirt Rd Houston PK to 12 288 n/a Coed A+ B B+ B- 1250/28 7:1 $22,455
20 Incarnate Word Academy Downtown 609 Crawford St Houston 9 to 12 354 Catholic Female A+ A A+ B 1160/26 8:1 $15,650
21 The Woodlands Preparatory School The Woodlands 27440 Kuykendahl Rd Tomball K to 12 221 n/a Coed A+ A B C+ 1250/27 6:1 $21,690
22 Providence Classical School Northwest Houston 18100 Stuebner Airline Rd Spring PK to 12 405 n/a Coed A A B+ B- 1230/27 9:1 $14,280
23 Cypress Christian School Willowbrook 11123 Cypress North Houston Rd Houston K to 12 650 Christian Coed A A- A A 1250/29 11:1 $17,650
24 Logos Preparatory Academy Sugar Land 13303 Southwest Fwy Sugar Land K to 12 497 Christian Coed A A- B B- 1250/28 4:1 $8,420
25 Northland Christian School North Chase Park 4363 Sylvanfield Dr Houston PK to 12 528 Christian Coed A A A+ A- 1210/28 8:1 $16,700