S.D. Codified Laws § 22-42-7
The distribution, or possession with intent to distribute, of less than one-half ounce of marijuana without consideration is a Class 1 misdemeanor; otherwise, the distribution, or possession with intent to distribute, of one ounce or less of marijuana is a Class 6 felony. The distribution, or possession with intent to distribute, of more than one ounce but less than one-half pound of marijuana is a Class 5 felony. The distribution, or possession with intent to distribute, of one-half pound but less than one pound of marijuana is a Class 4 felony. The distribution, or possession with intent to distribute, of one pound or more of marijuana is a Class 3 felony. The distribution, or possession with intent to distribute, of less than one-half ounce of marijuana to a minor without consideration is a Class 6 felony; otherwise, the distribution, or possession with intent to distribute, of one ounce or less of marijuana to a minor is a Class 5 felony. The distribution, or possession with intent to distribute, of more than one ounce but less than one-half pound of marijuana to a minor is a Class 4 felony. The distribution, or possession with intent to distribute, of one-half pound but less than one pound of marijuana to a minor is a Class 3 felony. The distribution, or possession with intent to distribute, of one pound or more of marijuana to a minor is a Class 2 felony. A first conviction of a felony under this section shall be punished by a mandatory sentence in a state correctional facility or county jail of at least thirty days, which sentence may not be suspended. A second or subsequent conviction of a felony under this section shall be punished by a mandatory sentence of at least one year. Conviction of a Class 1 misdemeanor under this section shall be punished by a mandatory sentence in county jail of not less than fifteen days, which sentence may not be suspended. A civil penalty, not to exceed ten thousand dollars, may be imposed, in addition to any criminal penalty, upon a conviction of a felony violation of this section.
SDCL 22-42-7