If you're curious about Latrelle's age on 'On My Block', I think of her as part of that messy, brilliant high-school cohort — so roughly mid-teens. The show follows a tight group of teenagers starting high school and then moving up a grade, so most of the principal kids land around 15 to 17 over the series. Latrelle sits squarely in that range by context: she acts, speaks, and lives like someone navigating high-school problems, not an adult world.
The writers never pin down an exact birthdate for Latrelle on-screen, but her interactions, the school timeline, and episode cues (homecoming, prom-ish stuff later on) place her alongside Monse, Jamal, Cesar, and Ruby. For a quick mental image, I picture her around 15 in the early episodes and closer to 16–17 by the later seasons. I always liked how that ambiguity lets viewers slot their own memories of teen years into her character — makes her feel instantly familiar.