And the Lady Trojans have the talent to extend the streak as the state meet gets under way Friday morning at the Georgia Tech Aquatic Center.
Brookwood may be on their heels once again, however. In past years, Lassiter has used its depth in every event to keep the Lady Broncos at bay. But Brookwood also has a deep squad, plus more experienced divers, and is capable of being the spoiler.
"They're excited about what lies ahead," Lassiter coach Glenn Meeden said. "It's going to be a lot of fun. Everyone is healthy. I like our lineup and we will see what happens."
A new aspect to this year's championships will be the venue. After spending some time at the Westminster School, the championships are now at Georgia Tech, in the same natatorium that once hosted the swimming events in the 1996 Olympics.
"They're excited (about Georgia Tech)," Meeden said. "They know it's a fast pool. It's designed that way, and they're excited about that."
Lassiter's biggest challenge is whether or not its depth can outcompete that of Brookwood's.
The Lady Trojans have the state's best time in the 200-yard medley relay and 400 freestyle relay, and they're the fourth-fastest in the 200 freestyle relay. They also have four swimmers capable of making the finals in the 200 freestyle, three in the 100 backstroke and two in the 200 individual medley and 100 freestyle.
Brookwood, meanwhile, is capable of scoring high in all three relays and have multiple swimmers in five individual events.
Georgia-bound Lassiter swimmer Shannon O'Malley has potential to be a two-time individual state champion in the 200 IM and the 100 breaststroke. Texas A&M signee Sammie Bosma is the favorite to win the 100 freestyle and 100 backstroke.
Kim Carducci, a North Carolina signee, can be a threat in the sprint freestyles. Sarah Williford (distance freestyles), Jordan Drake (100 butterfly) and Kylie Dickman (200 IM) also have top-eight potential.
Walton got younger after graduating its talented senior class that steered the Lady Raiders to a second-place finish in last year's meet, and they may not have the strength to finish in the top five.
But all three of Walton's relay teams are strong enough to make Saturday's finals. Charlotte Holz can score points in the sprint freestyles, while Kira deBruyn could make the finals in the 200 IM. Halle Friedman could be back in the 100 butterfly and 500 freestyle and Aven Jackson has the 15th-lowest time in the 100 breaststroke.
Due West rivals Harrison and Kennesaw Mountain also have strong relays and swimmers with potential of making the finals.
Harrison's Madison Jacobi is a contender to win the distance freestyles, and teammate Mackenzie Payment has potential to score in the top eight in the 100 butterfly. Olivia Jacobi could also be a finalist in the 100 breaststroke.
Kennesaw Mountain is deep in the 200 freestyle, with Melissa Postol and Savannah Long sharing the ability to reach the finals. Morgan Stephenson is capable of a strong showing in the 200 IM and 100 breaststroke, and Alex Hart is gunning for a diving title after finishing fourth in last year's meet.
Hillgrove's Kelly Price is capable of scoring high in the distance freestyles and North Cobb's Julie Storch could be a finalist in the 100 backstroke.
In the Class AAAA-A meet, which will begin Friday evening, Pope will have the depth to make a top five appearance.
The Lady Greyhounds would need a big boost in the 200 medley and 200 freestyle relays, where they could be top eight contenders. Anna Neumeister is favored to win the 200 IM and 100 backstroke, and Larissa Joassaint is shooting for a high finish in the sprint freestyles.
With Kelly Morris out following knee surgery, Julia Weirbach is Pope's leading diver.
"We don't have our best diver in Kelly Morris, so that's a lot of points we will miss," Pope coach Chris Haon said. "But judging how the girls really stepped up at county, I think the girls have a legitimate shot at finishing in the top five."
Aja Malone will lead Allatoona in the 100 butterfly and 100 back, and Afton Nourzad will lead Walker in the 200 IM and 100 breaststroke.