Philadelphia, Pennsylvania, is separated from New Jersey by the Delaware River

iss074e0002935 (Dec. 20, 2025) --- Philadelphia, Pennsylvania—the United States’ first capital and the city where the Declaration of Independence was signed, with a population of about 1.74 million—sits along the Delaware River, with New Jersey on the opposite bank. This photograph was taken at approximately 3:28 a.m. local time from the International Space Station as it orbited 262 miles above the Atlantic coast.