Zenkaikon returned to the heart of Lancaster to celebrate its 20th birthday this year. Operated fully by volunteers and deeply driven by its community, it takes over the downtown area every year, and this year is bigger than ever. The Zenkai culture feels as much tied to the area as its anime and sci-fi roots. The cosplay showing is eclectic and exuberant, and for many people, it’s the start of the convention year.
The Zenkai DNA
Zenkaikon was born out of the merger of two Philadelphia area cons, Zentrancon and Kosaikon. Both were held at Philly area universities (Villanova University and the University of Pennsylvania, respectively), with the former as a sci-fi event, and the latter centered around anime, and the DNA of both is deep in Zenkai’s roots. It’s the rare con where you’re just as likely to see the Doctor as a Straw Hat pirate.
In 2013, it had outgrown its handful of venues, and moved to the Lancaster County Convention Center. It’s called Lancaster home since, where it’s become a staple. It feels like a part of the city, and is far from the con held in the middle of a parking lot. The venue is surrounded by historic brick buildings and alleyways that get taken over by cosplayers and photographers all weekend.
The city feels vibrant, with the venue right across the street from a downtown strip of diverse restaurants. People come and go from the venue, making it a far departure from feeling stuck and having to make do with con food. The images from the weekend are unique, and the surrounding area eliminates the need to stuff everyone into the venue. The relationship between event and location feels symbiotic, and Zenkaikon is regularly featured in “Discover Lancaster” campaigns.
It’s Over 9,000
Zenkaikon has been steadily growing since moving to Lancaster, but has hit a new level in recent years. At the time, its attendance clocked in at right around 3,000. The growth over the years has been evident, having more than doubled in 2025 at over 7,000 attendees. Its attendance this year jumped to over 9,000 people. The rapid growth was certainly noticeable. The lines have grown longer than ever, and panel rooms have filled up faster than ever.
Ultimately, this is the best type of problem to have. At its core, the culture is still driven by the community first and foremost; from the beginning, its motto has been “by fans, for fans.” The experience will be led by the culture as it pushes towards its five digit era.
