For the purposes of taxation, all property is hereby classified into the following classes:
Agricultural property includes any land classified as agricultural land pursuant to § 10-6-112 and any improvements on the agricultural land used exclusively for agricultural purposes. However, agricultural property does not include any normally occupied dwelling or automobile garage or portion of a building used for that purpose by the occupant of such dwelling. Owner-occupied single-family dwellings include all property classified pursuant to § 10-13-39.
Nonagricultural property includes all other property not otherwise classified.
The director, in listing and assessing all property to which this section applies, shall designate opposite each description the class to which the property belongs.
SDCL 10-6-110