History of Hillgrove High School in Timeline

By Popular Timelines Editorial Team · Updated: March 24, 2026

Hillgrove High School is a public high school located in unincorporated Cobb County, Georgia, part of the Cobb County School District. Identified as the district's fifteenth high school, its teams are represented by the Hawk mascot.

1952: Land Purchased by the Hills

In 1952, Harry and Harriet Hargrove Hill purchased the land to raise cattle and Tennessee Walking Horses.

2006: Establishment of Hillgrove High School

In 2006, Hillgrove High School was established on 98 acres of land donated by Harry Hill and Harriet Hargrove Hill.

2006: Orchestra Program Growth

Since 2006, Hillgrove's orchestra program has grown to more than 150 students across three ensembles.

2006: Marching Band Active Since School Opening

The Hillgrove Marching Band has been active since the school opened in 2006.

2009: Establishment of NJROTC

In 2009, the Hillgrove High School Naval Junior Reserve Officers' Training Corps (NJROTC) was established.

2010: Commission of NJROTC

In 2010, the Hillgrove High School Naval Junior Reserve Officers' Training Corps (NJROTC) was commissioned.

2019: Marching Band Performs at D-Day Parade

In 2019, the Hillgrove Marching Band performed at the 75th Anniversary D-Day Parade in France.

2019: Orienteering Team National Champion

In 2019, the Hillgrove Orienteering Team won the national championship.

2022: Orienteering Team National Champion

In 2022, the Hillgrove Orienteering Team won the national championship.

2023: Jazz Orchestra Performances and Invitation to Midwest Clinic

In 2023, Hillgrove's Jazz Orchestra performed at the GMEA In-Service Conference and the Essentially Ellington Festival in Nashville, and earned an invitation to the 2023 Midwest Clinic.

2023: Marching Band Wins Grand Champions

In 2023, the Hillgrove Marching Band won Grand Champions at the Western Carolina University Tournament of Champions with their show Forew4rned.

2023: Orienteering Team National Champion

In 2023, the Hillgrove Orienteering Team won the national championship.

2024: Premiere of "As the World Runs Dry"

The Hillgrove Marching Band's 2024 show, As the World Runs Dry, inspired by *Mad Max* and *Dune*, is set to premiere at BOA UAB.

2025: Wind Symphony Performance at JanFest and Invitation to National Concert Band Festival

In 2025, the Hillgrove Wind Symphony performed at the University of Georgia’s JanFest and was invited to the 2025 Music for All National Concert Band Festival.