City of Porcupine, South Dakota

Porcupine is located at 43°14'22" North, 102°19'50" West (43.239722, -102.330556).

According to the United States Census Bureau, the city has a total area of 9.49 mi² (24.59 km²). 9.49 mi² (24.59 km²) of it is land and none of the area is covered by water.

Porcupine is located in the Mountain Standard Time (MST) timezone, GMT-07:00. It observes Daylight Saving Time (DST).