The Pierre Micropolitan Statistical Area, as defined by the United States Census Bureau, is an area consisting of two counties in South Dakota, anchored by the state capital city, Pierre.

[1] It is the smallest metropolitan or micropolitan statistical area in the U.S. to be centered on a state capital.

As of the census[2] of 2000, there were 19,253 people, 7,623 households, and 5,085 families residing within the μSA.

The racial makeup of the μSA was 89.51% White, 0.19% African American, 8.15% Native American, 0.38% Asian, 0.02% Pacific Islander, 0.29% from other races, and 1.46% from two or more races.

Males had a median income of $31,070 versus $21,777 for females.