Jamison City is located at 41°18'21" North, 76°21'39" West (41.306111, -76.361111).
According to the United States Census Bureau, the city has a total area of 0.24 mi2 (0.63 km2). 0.24 mi2 (0.63 km2) of it is land and none of the area is covered by water.
Jamison City is located in the Eastern Standard Time (EST) timezone, GMT-05:00. It observes Daylight Saving Time (DST).