Johnstown is a city in Licking County, Ohio, United States. The population was 5,182 at the 2020 census. It is located just south of Newark, the county seat. It is part of the Columbus, Ohio Metropolitan Statistical Area. The city was named for John Miller, its founder. Johnstown is a thriving community with a variety of businesses, restaurants, parks, and recreational areas. It is home to the annual Johnstown Music Festival and the Johnstown Tomato Festival. The city is also home to several historic sites, including the John Miller House. Johnstown is a great place to live, work, and play. It is a vibrant and inviting community with a wealth of resources and opportunities for its residents. The city is committed to providing its citizens with a high quality of life.