Relocations Butler County is one of the fastest growing areas in the Northeastern United States. When you run a business - whether it's new or growing-- there are few decisions as critical as choosing a location. Fortunately, when you're considering a move to Butler County, Pennsylvania, the answer to all of the critical questions isn't just "yes". It's "yes, we have . . . and we do." 120 million potential customers live within one day's shipping from Butler County. Whether you're looking for a location near interstate highways, I-79 or I-90, you'll find a Keystone Opportunity Zone or certified Select Site in Butler County that gives you critical transportation advantages. That makes Butler County - North or South, East or West - a great home base to get your products where they need to be. Below you will find a regional overview of Butler County: Downloadable Information Guide