At its economic peak, Jerome boasted a 300-seat movie theatre, a bank, a hotel, an auto dealership, several dry goods and grocery stores, several taverns, an electrical appliance store, a YMCA, and a bowling alley. A local tavern maintained a popular bocce court. The mine employed over 1000 men. Residents from that period claim Jerome's population stood at about 3,000 at its peak, although this information is yet to be documented. However, Jerome's population certainly was sufficient to justify the capital investment to tie the town into the interurban transit system. Electric streetcar service from Jerome to the nearby city of Johnstown was proposed as early as 1908. In 1921, the project was financed through a public bond offering, construction completed and service began. The streetcar tram left from the Jerome terminus every two hours for the 60 minute trip that ended on downtown Johnstown's Main Street. Property right-of-way was obtained to extend this tram service to the south to Boswell, Jenners, Somerset and Rockwood, although track construction never commenced. Service to Johnstown ended in 1933. Separately, a branch line of the Baltimore & Ohio Railroad served Jerome and its coal mine, connecting to the B&O trunk line at Hollsopple.