| Region | Level | Instrument | Region Chair | Name | School |
| 3 | SR | Flute | 01 | Olivia Carr | Nation Ford High School |
| 3 | SR | Flute | 02 | Katherine Proulx | Fort Mill High School |
| 3 | SR | Flute | 03 | Natalia Kraft | Nation Ford High School |
| 3 | SR | Flute | 04 | Emma Grupp | Fort Mill High School |
| 3 | SR | Flute | 05 | Jenna Lincomfelt | Catawba Ridge High School |
| 3 | SR | Flute | 06 | Wylsonne Brown | Ridge View High School |
| 3 | SR | Flute | 07 | Matthew Maco | Ridge View High School |
| 3 | SR | Flute | 08 | Camille Bailey | York Preparatory Academy |
| 3 | SR | Flute | 09 | Danielle Raynor | Cardinal Newman School |
| 3 | SR | Flute | 10 | Gabrielle Harvey | Northwestern High School |
| 3 | SR | Flute | 11 | Brianna Kuehn | Piedmont Music Academy |
| 3 | SR | Flute | 12 | Breanna Green | Fort Mill High School |
| 3 | SR | Flute | A01 | Carla Finkel | Spring Valley High School |
| 3 | SR | Flute | A02 | Meridan DeHaan | Fort Mill High School |
| 3 | SR | Flute | A03 | Naomi Diaz | Rock Hill High School |
| 3 | SR | Flute | A04 | Myles Bell | A.C. Flora High School |
| 3 | SR | Flute | A05 | Johanna Baier | York Preparatory Academy |
| 3 | SR | Flute | A06 | Taliyah Richardson | Dreher High School |
| 3 | SR | Oboe | 01 | Nora Robinson | Fort Mill High School |
| 3 | SR | Oboe | 02 | Reagan Arxer | Fort Mill High School |
| 3 | SR | Oboe | 03 | Mykah Burroughs | Catawba Ridge High School |
| 3 | SR | Bassoon | 01 | Daniel Sippel | Fort Mill High School |
| 3 | SR | Bassoon | 02 | Kendall White | Fort Mill High School |
| 3 | SR | Bassoon | 03 | Gabrielle Proulx | Fort Mill High School |
| 3 | SR | Bassoon | 04 | Jalaya Fullard | Lower Richland High School |
| 3 | SR | Bassoon | A01 | Elizabeth Nobles | Dreher High School |
| 3 | SR | Bassoon | A02 | Phillip Aleshire | Catawba Ridge High School |
| 3 | SR | Clarinet | 01 | Cassie Cole | Catawba Ridge High School |
| 3 | SR | Clarinet | 02 | Leah Weeks | Catawba Ridge High School |
| 3 | SR | Clarinet | 24 | Lyn Yu | Spring Valley High School |
| 3 | SR | Clarinet | 03 | Isabelle Roddy | Midlands Home School Band |
| 3 | SR | Clarinet | 04 | Peter Vessey | Ben Lippen High School |
| 3 | SR | Clarinet | 05 | Kaylen Pritchard | Catawba Ridge High School |
| 3 | SR | Clarinet | 06 | Abhinav Krishniah | Catawba Ridge High School |
| 3 | SR | Clarinet | 07 | Dana Witherspoon | Blythewood High School |
| 3 | SR | Clarinet | 08 | Ben Hofmeister | Fort Mill High School |
| 3 | SR | Clarinet | 09 | Elise Papke | Nation Ford High School |
| 3 | SR | Clarinet | 10 | Aryana Hughey | Blythewood High School |
| 3 | SR | Clarinet | 11 | Patton Courie | Dreher High School |
| 3 | SR | Clarinet | 12 | Kristen Mack | Blythewood High School |
| 3 | SR | Clarinet | 13 | Shyam Ganesh Babu | Spring Valley High School |
| 3 | SR | Clarinet | 14 | Caitlyn O’Connor | Fort Mill High School |
| 3 | SR | Clarinet | 15 | Alexis Campbell | Fort Mill High School |
| 3 | SR | Clarinet | 16 | Harlen Rembert | Nation Ford High School |
| 3 | SR | Clarinet | 17 | Hannah Tilley | Blythewood High School |
| 3 | SR | Clarinet | 18 | Jacob Wood | Fort Mill High School |
| 3 | SR | Clarinet | 19 | Sebastian Castaneda-Rivera | South Pointe High School |
| 3 | SR | Clarinet | 20 | Yukari Visoso | Rock Hill High School |
| 3 | SR | Clarinet | 21 | Kearyn Washington | Ridge View High School |
| 3 | SR | Clarinet | 22 | Christopher Herman | Northwestern High School |
| 3 | SR | Clarinet | 23 | Leah Schwartz | Nation Ford High School |
| 3 | SR | Bass Clarinet | 01 | Alijah Norris | Ridge View High School |
| 3 | SR | Bass Clarinet | 02 | Milan Lewis-Harris | Northwestern High School |
| 3 | SR | Bass Clarinet | 03 | Madison Keziah | Nation Ford High School |
| 3 | SR | Bass Clarinet | 04 | Alyson Downard | York Preparatory Academy |
| 3 | SR | Bass Clarinet | A01 | Baden Stickley | Fort Mill High School |
| 3 | SR | Bass Clarinet | A02 | Jacob Stutts | Rock Hill High School |
| 3 | SR | Contra Clarinet | 01 | Sarah Rackley | Fort Mill High School |
| 3 | SR | Alto Sax | 01 | Sara Holden | Nation Ford High School |
| 3 | SR | Alto Sax | 02 | Tyler Suthers | South Pointe High School |
| 3 | SR | Alto Sax | 03 | Dale Watson | S.C. Governor’s School for the Arts and Humanities – Region 3 |
| 3 | SR | Alto Sax | 04 | Madelyn Shiakallis | Nation Ford High School |
| 3 | SR | Alto Sax | 05 | John Crain | Fort Mill High School |
| 3 | SR | Alto Sax | 06 | Aaron Warren | Andrew Jackson High School |
| 3 | SR | Alto Sax | A01 | Jariz Ortiz | Spring Valley High School |
| 3 | SR | Alto Sax | A02 | Dominic Voci | Fort Mill High School |
| 3 | SR | Alto Sax | A03 | Daniel Atuncar | Fort Mill High School |
| 3 | SR | Tenor Sax | 01 | Askia Rahman | Blythewood High School |
| 3 | SR | Tenor Sax | 02 | Jared West | Indian Land High School |
| 3 | SR | Tenor Sax | A01 | Timarjiell Jones | Blythewood High School |
| 3 | SR | Bari Sax | 01 | Brakkon Bench | Indian Land High School |
| 3 | SR | Bari Sax | A01 | Richard Hamilton, II | Blythewood High School |
| 3 | SR | Trumpet | 01 | Brayden Russell | Blythewood High School |
| 3 | SR | Trumpet | 02 | Josiah Macchi | Catawba Ridge High School |
| 3 | SR | Trumpet | 03 | Billy Welch | Rock Hill High School |
| 3 | SR | Trumpet | 04 | Anderson Lampley | Northwestern High School |
| 3 | SR | Trumpet | 05 | Jason Arevalo | Ridge View High School |
| 3 | SR | Trumpet | 06 | Garrett Studer | Nation Ford High School |
| 3 | SR | Trumpet | 07 | Margo Jackson | Lewisville High School |
| 3 | SR | Trumpet | 08 | Ryan Leadbitter | Spring Valley High School |
| 3 | SR | Trumpet | 09 | Evan Heisler | Catawba Ridge High School |
| 3 | SR | Trumpet | 10 | Caleb Blanton | Ridge View High School |
| 3 | SR | Trumpet | 11 | Zachary Snelgrove | Lugoff-Elgin High School |
| 3 | SR | Trumpet | 12 | Jordan Folligan | Spring Valley High School |
| 3 | SR | Trumpet | 13 | James Catoe | Lugoff-Elgin High School |
| 3 | SR | Trumpet | 14 | Ashton Crochet | Rock Hill High School |
| 3 | SR | Trumpet | 15 | Emily Taylor | Catawba Ridge High School |
| 3 | SR | Trumpet | 16 | Aaron Dil | Nation Ford High School |
| 3 | SR | Trumpet | A01 | Nolan Baker | Indian Land High School |
| 3 | SR | Trumpet | A02 | Adam Goodwin | Fort Mill High School |
| 3 | SR | Trumpet | A03 | Cooper Hartzog | South Pointe High School |
| 3 | SR | Trumpet | A04 | Mikayla Black | Fort Mill High School |
| 3 | SR | Trumpet | A05 | Colin Baker | South Pointe High School |
| 3 | SR | Trumpet | A06 | Roberto Rivera | Ridge View High School |
| 3 | SR | Trumpet | A07 | Bradley Rogers | Ridge View High School |
| 3 | SR | Horn | 01 | Christopher Gidney | Blythewood High School |
| 3 | SR | Horn | 02 | Betsy Ryerson | Piedmont Music Academy |
| 3 | SR | Horn | 03 | Lauren Grier | Dreher High School |
| 3 | SR | Horn | 04 | Aleks Wichmann | Fort Mill High School |
| 3 | SR | Horn | 05 | Sarah-Kate Moughan | Fort Mill High School |
| 3 | SR | Horn | 06 | Benjamin Hurley | Catawba Ridge High School |
| 3 | SR | Horn | 07 | Rocco DiNino | Rock Hill High School |
| 3 | SR | Horn | 08 | Andrew Scribner | Indian Land High School |
| 3 | SR | Horn | A01 | Ethan Mink | Fort Mill High School |
| 3 | SR | Horn | A02 | Owen Greene | Fort Mill High School |
| 3 | SR | Horn | A03 | Avery Spinks | Andrew Jackson High School |
| 3 | SR | Horn | A04 | Eliott Rurey | Spring Valley High School |
| 3 | SR | Trombone | 01 | Jacob Atkisson | Catawba Ridge High School |
| 3 | SR | Trombone | 02 | Georgia Kern | Fort Mill High School |
| 3 | SR | Trombone | 03 | Dylan McNaughton | Andrew Jackson High School |
| 3 | SR | Trombone | 04 | Thomas Blake | Cardinal Newman School |
| 3 | SR | Trombone | 05 | Ashley Hubbard | Ridge View High School |
| 3 | SR | Trombone | 06 | Jack Heitman | Blythewood High School |
| 3 | SR | Trombone | 07 | Hayden Pendergrass | Ridge View High School |
| 3 | SR | Trombone | 08 | Erick Fischer | Nation Ford High School |
| 3 | SR | Trombone | 09 | Josh Brabham | Rock Hill High School |
| 3 | SR | Trombone | A01 | Carson Broome | Indian Land High School |
| 3 | SR | Trombone | A02 | Sam Ogburn | Indian Land High School |
| 3 | SR | Euphonium | 01 | Brandon Evers | Blythewood High School |
| 3 | SR | Euphonium | 02 | Liam Ogden | Catawba Ridge High School |
| 3 | SR | Euphonium | 03 | Alex Matthews | Lugoff-Elgin High School |
| 3 | SR | Euphonium | 04 | Andrew Wheaton | Catawba Ridge High School |
| 3 | SR | Euphonium | A01 | Ryan Orr | Blythewood High School |
| 3 | SR | Euphonium | A02 | John Kouame | Fort Mill High School |
| 3 | SR | Tuba | 01 | Theo Rogers | Catawba Ridge High School |
| 3 | SR | Tuba | 02 | Michael Gaither | Blythewood High School |
| 3 | SR | Tuba | 03 | Andrew Assaad | Nation Ford High School |
| 3 | SR | Tuba | 04 | Jackson Shaw | Northwestern High School |
| 3 | SR | Tuba | 05 | Jacob Anderson | Nation Ford High School |
| 3 | SR | Tuba | 06 | Evan Sippel | Fort Mill High School |
| 3 | SR | Tuba | 07 | Damon Ferrari | Catawba Ridge High School |
| 3 | SR | Tuba | 08 | Elijah Beck | Fort Mill High School |
| 3 | SR | Tuba | A01 | Jasir Miller | Camden High School |
| 3 | SR | Tuba | A02 | Rondalyn Waters | Ridge View High School |
| 3 | SR | Tuba | A03 | Gabe van Sickle | Fort Mill High School |
| 3 | SR | Tuba | A04 | Bryce Breeden | Westwood High School |
| 3 | SR | Bass Trombone | 01 | Harvey Brown | Ridge View High School |
| 3 | SR | Percussion | 01 | Marshall Seezen | Cardinal Newman School |
| 3 | SR | Percussion | 02 | Daniel Lacoste | Dreher High School |
| 3 | SR | Percussion | 03 | Aidan Jefferson | Blythewood High School |
| 3 | SR | Percussion | 04 | Jack Estrada | Andrew Jackson High School |
| 3 | SR | Percussion | 05 | Braden Steen | Andrew Jackson High School |
| 3 | SR | Percussion | 06 | Alexander Mills | Spring Valley High School |
| 3 | SR | Percussion | 07 | Landon McBride | Nation Ford High School |
| 3 | SR | Percussion | A01 | Daniel Schlauch | Northwestern High School |
| 3 | SR | Percussion | A02 | Elijah Bell | Catawba Ridge High School |
| 3 | SR | Percussion | A03 | Bobby Bond | Blythewood High School |
| 3 | SR | Percussion | A04 | Donovan Williams | Rock Hill High School |
| 3 | SR | Timpani | 01 | Darby Waund | Dreher High School |
| 3 | SR | Timpani | A01 | James Morris | Catawba Ridge High School |