South Dakota Bennett County Public Libraries

By | January 1, 2023

We are providing a comprehensive directory of public libraries in Bennett County, South Dakota. This list includes library formal name, street address, postal code, phone number and how many books are available. Check the following list to see all public libraries in South Dakota Bennett County.

Street Address: 101 Main Street, Martin, SD 57551
Phone Number: (605) 685-6556 Bennett 19,304 14,092

Street Address: 101 Main St / Po Box 190, Martin, SD 57551
Phone Number: (605) 685-6556 Bennett N/A N/A

Overview of Bennett County, South Dakota

Bennett County is a county located in the state of South Dakota. As of 2000, the population is 3,574. Its county seat is Martin.


Although created in 1909, Bennett County, previously part of the Pine Ridge Indian Reservation, remained a part of Fall River County until its organization in 1912, when its first board of county commissioners was elected on April 27. In November 1912, the town of Martin was chosen as the county seat.


According to the U.S. Census Bureau, the county has a total area of 3,084 km² (1,191 mi²). 3,070 km² (1,185 mi²) of it is land and 14 km² (5 mi²) of it is water. The total area is 0.45% water.


The county is divided into two areas of unorganized territory: East Bennett and West Bennett.

Adjacent Counties

  • Jackson County, South Dakota- north
  • Todd County, South Dakota- east
  • Cherry County, Nebraska- south
  • Shannon County, South Dakota- west


Bennett County
Population by year
1910 – 96
1920 – 1,924
1930 – 4,590
1940 – 3,983
1950 – 3,396
1960 – 3,053
1970 – 3,088
1980 – 3,044
1990 – 3,206
2000 – 3,574

As of the census of 2000, there are 3,574 people, 1,123 households, and 818 families residing in the county. The population density is 1/km² (3/mi²). There are 1,278 housing units at an average density of 0/km² (1/mi²). The racial makeup of the county is 40.91% White, 0.28% Black or African American, 52.07% Native American, 0.06% Asian, 0.14% Pacific Islander, 0.17% from other races, and 6.38% from two or more races. 2.01% of the population are Hispanic or Latino of any race.

There are 1,123 households out of which 39.70% have children under the age of 18 living with them, 48.60% are married couples living together, 17.50% have a female householder with no husband present, and 27.10% are non-families. 23.30% of all households are made up of individuals and 10.20% have someone living alone who is 65 years of age or older. The average household size is 3.14 and the average family size is 3.74.

In the county, the population is spread out with 36.30% under the age of 18, 9.20% from 18 to 24, 25.30% from 25 to 44, 18.00% from 45 to 64, and 11.10% who are 65 years of age or older. The median age is 29 years. For every 100 females there are 98.30 males. For every 100 females age 18 and over, there are 93.90 males.

Cities and towns

According to countryaah, Bennett County, South Dakota has the following cities and towns:

  • Allen
  • Martin

Map of Bennett County South Dakota