SDCL § 11-9-9: Areas conducive to disease or crime defined as blighted.

Any area, including slum area, in which the structures, buildings, or improvements, by reason of:

(1) Dilapidation, age, or obsolescence;

(2) Inadequate provisions for ventilation, light, air, sanitation, or open spaces;

(3) High density of population and overcrowding;

(4) The existence of conditions which endanger life or property by fire and other causes; or

(5) Any combination of such factors;

are conducive to ill health, transmission of disease, infant mortality, juvenile delinquency, or crime, and which is detrimental to the public health, safety, morals, or welfare, is a blighted area.