High School on SI Southwest Region Rankings — Sept. 16, 2025

St. John Bosco takes over top spot; Mater Dei falls to No. 6

Centennial's victory over Mater Dei sent the Monarchs tumbling in the national and Southwest Region rankings. | Tarek Fattal

We recently released our High School on SI Power 25 national high school football rankings.

Now, we break it down by region.

Here’s a look at our Top 10 teams in the Southwest Region (Arizona, California, Hawaii, Nevada, New Mexico).

High School on SI Southwest Region Rankings — Sept. 16, 2025

1. St. John Bosco (Bellflower, Calif.) (4-0) (No. 1 nationally)

2. Bishop Gorman (Las Vegas) (4-0) (No. 2 nationally)

3. Mission Viejo (Calif.) (4-0) (No. 10 nationally)

4. Santa Margarita (Rancho Santa Margarita, Calif.) (3-1) (No. 11 nationally)

5. Centennial (Corona, Calif.) (3-1) (No. 12 nationally)

6. Mater Dei (Santa Ana, Calif.) (3-1) (No. 18 nationally)

7. Sierra Canyon (Chatsworth, Calif.) (4-0) (No. 20 nationally)

8. Basha (Chandler, Ariz.) (3-0) (No. 23 nationally)

9. De La Salle (Concord, Calif.) (3-0)

10. Saint Louis (Honolulu) (3-0)

Under Consideration

Brophy Prep (Phoenix)

Folsom (Calif.)

Hamilton (Chandler, Ariz.)

Kahuku (Hawaii)

Las Cruces (N.M.)

Liberty (Peoria, Ariz.)

Liberty (Henderson, Nev.)

Los Alamitos (Calif.)

Orange Lutheran (Calif.)