During the 19th century, Charlotte continued to expand both economically and culturally. In 1842, Union County was formed from Mecklenburg’s southeastern portion and part of Anson County, all of which had been part of North Carolina’s original Salisbury District, one of the state’s first judicial and military divisions.

Religious life flourished in the city, which had long been a center of Southern Presbyterianism. By the 1800s, Charlotte hosted a variety of churches, including Presbyterian, Baptist, Methodist, Episcopal, Lutheran, and Roman Catholic congregations. This religious diversity earned the city the enduring nickname, “The City of Churches.”

Gold remained a part of Charlotte’s identity, with some locals continuing to pan in streams and creeks. The Reed Gold Mine operated until 1912, and the Charlotte Mint, established during the first gold rush, remained active until 1861 when it was seized during the Civil War. Today, the former mint building serves as the Mint Museum of Art.

Charlotte’s first major economic boom came after the Civil War. The city became a key cotton processing center and a railroad hub, connecting the Southern Railway mainline from Atlanta to Washington, D.C. Local farmers brought cotton to Uptown Charlotte for shipment, and textile factories began to emerge, starting with the Charlotte Cotton Mill in 1881, which still stands at Graham and 5th Streets. By 1890, Charlotte’s population had grown to 11,557, signaling the city’s transformation into a regional economic and cultural center.