What is "nisland"

Population (2000): 204
Housing Units (2000): 100
Land area (2000): 0.254775 sq. miles (0.659864 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 0.254775 sq. miles (0.659864 sq. km)
FIPS code: 45180
Located within: South Dakota (SD), FIPS 46
Location: 44.673487 N, 103.552950 W
ZIP Codes (1990): 57762
Note: some ZIP codes may be omitted esp. for suburbs.
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