That's not actually a 'city'. That point is about 540-ft north of Piney Branch Rd
and 440-ft east of Arliss St, in Silver Spring, MD.
Since you're fishing for "Washington DC", I'll mention that the point is about 1.8 miles
outside the boundary of DC, and 7.9 miles from the Washington Monument.
That point is about 530-ft north of Piney Branch Rd, and about 1,150-ft east of Flower Ave, in Silver Spring, Montgomery County, Maryland. If you were going for Washington DC, your coordinates place you about 1.77 miles from the nearest point on the boundary of DC.
Denver
Odessa, Missouri
There's nothing special about Washington, DC, so nobody would ever phrase a question this way. But, DC is at (approximately) 39N 77W, so 80 degrees south and 107 degrees west of DC would be 41S, 194W. Oops, the maximum longitude is 180, so "194W" would be 14 degrees west of 180E, which would be 166E. So, 41S, 166E. These coordinates are in the Tasman Sea, about 280 miles northwest of Canterbury, New Zealand.
39N 82W is just west of Hartford City, West Virgina.
The coordinates 39N 77W point to the city of Washington, D.C., which is the capital of the United States.
gettysburg
The coordinates 12S 77W point to the city of Lima, the capital of Peru. Lima is a vibrant and historic city located on the Pacific coast of South America.
The coordinates 39N 104W correspond to Denver, the capital city of Colorado in the United States.
Jamaca
Peru i think
The coordinates 39N 105W are for Denver, Colorado in the United States.
Washington D.C.
That point is about 530-ft north of Piney Branch Rd, and about 1,150-ft east of Flower Ave, in Silver Spring, Montgomery County, Maryland. If you were going for Washington DC, your coordinates place you about 1.77 miles from the nearest point on the boundary of DC.
Denver
The coordinates 12°N 77°W point to Lima, the capital city of Peru.
The city located at 12°S latitude and 77°W longitude is Lima, the capital city of Peru.