The Zon, also called The Zen in early fanfics and websites, is Lawndale's alterna-rock/grunge venue/bar where Mystik Spiral had regular gigs.
Overview[]
Found on Dega Street, it is considered a hangout for the young adult demographic. High-school students are sometimes found there. Jane Lane and Daria Morgendorffer attend only to provide support (moral and roadie) for the band Mystik Spiral, of which Jane's older brother, Trent Lane, is the lead singer and lead guitarist. Tom Sloane went at least once for the sheer fun of it. Brittany Taylor also appeared there once with her hair dyed black as she had been hanging out with an apparent grunge enthusiast trying to get back at Kevin, though she quickly regretted it.
The club is incredibly filthy, especially the toilets. Despite much of the clientele being underage, it appears to serve alcohol.

The Zon first appeared in the opening scenes from Ill. Daria and Jane saw Mystik Spiral play there, and Daria developed a mysterious rash in the bathroom after hearing that Jane was going to invite Trent to hang out after the show. While in the bathroom, she ran into Brittany and convinced her to cover for her with Jane while she snuck out so no one would notice the rash.
It resurfaced in Pierce Me where Trent debuted his song for Jane's birthday.

In Jane's Addition, Jane meets Tom at The Zon while Mystik Spiral is playing live music.
It is also part of the Dega Street level of the Daria's Inferno game.

The source of the confusion over the place's proper name is unclear (possibly due to a murky image from an episode in the series), but the Virtual Lawndale webpage in MTV's Daria website and Daria's Inferno show the name as "The Zon" (look for location #10 on the map). In Daria's Inferno, Daria pronounces the name as "Zōn" (like "Zone").