Clark SD, Home of Potato Days, featuring World Famous Mashed Potato Wrestling!



Farmers of the community take much pride in the quality and production of a variety of crops. Wheat, oats, sunflowers, flax, barley, millet, corn, and soybeans are widely grown, and for years this county was known as the "Potato Capital of South Dakota". Most farmers feed and raise cattle, and there are a number of sheep and hog operations, as well as horse breeders. There are several commercial livestock feeding operations in the area.

Soybean Field in June

Early Summer Corn Field

Wheat Field Ready to Harvest


Clark County Agriculture

Climate | Physiography, Relief, and Drainage | Infrastructure | Natural Resources

Clark County is in the northeastern part of South Dakota. It has a total land area of 619,578 acres. About 65 percent of the acreage in Clark County is used as cropland, 8 percent as pasture and hayland, 21 percent as rangeland and 6 percent for other uses. Wheat, corn, soybeans, oats, barley and alfalfa are the main crops. Farming is diversified. Livestock and livestock products are the main sources of income, but income from cash crops is also important. Farming is the principal enterprise in Clark County. About 66 percent of farm income is derived from the sale of livestock and livestock products. The rest is derived mainly from the sale of small grain and corn. Some of the crops are used as feed for livestock.

In 1987 there were 688 farm in the county. In general, the trend has been toward fewer and larger farms. For more information on farming in South Dakota, the following websites may be of interest:
Farm Service Agency 
www.fsa.usda.govSD/  Local office in Clark at 400 1st Ave E,  Clark  SD  57225 (605)532-3639
South Dakota Rural Development
South Dakota Department of Agriculture
South Dakota Ag in The Classroon
Agriculture Marketing Service
South Dakota State University
South Dakota Natural Resources Conservation Services

CLIMATE: Clark County is cold in winter and is quite hot with occasional cool spells in summer. Precipitation during the winter frequently occurs as snowstorms, and during the warms months is chiefly showers, often heavy, when warm moist air moves in from the south. Total annual rainfall is normally adequate for corn, soybeans and small grain.

In winter, the average temperature is 15 degrees F and the average daily minimum temperature is 5 degrees. In summer, the average temperature is 70 degrees and the average maximum temperature is 82 degrees.

The total annual precipitation is about 21 inches. Of this, about 16 inches, or almost 80 percent, usually falls in April through September. The growing season for most crops falls within this period. The average seasonal snowfall is 32 inches. On the average, 46 days of the year have at least 1 inch of snow on the ground.

The average relative humidity in mid-afternoon is about 60 percent. Humidity is higher at night, and the average dawn is about 80 percent. The sun shines 70 percent of the time possible in the summer and 55 percent in winter. The prevailing wind is from the south-southeast in the summer and from the northwest in winter. Average wind speed is highest, 14 miles per hour in spring.

Tornadoes and severe thunderstorms strike occasionally. These storms are local and of short duration and result in very severe damage in small, localized areas. Hailstorms occur during the warmer of the part of the year in irregular patterns and in relatively small areas.

Physiography, Relief, and Drainage: More than half of Clark County is on the Coteau des Prairies (Flint, 1955). This part of the county is gently rolling to undulating. Basins are numerous in this area, and external drainage is nearly nonexistent. The western edge of the Coteau des Prairies trends nearly north-south a few miles west of central Clark County.

The western one-third of the county is in the James Basin Physiographic area. Drainage in this area is generally westward to the James River. The area is characterized by small basins, some of which are barely perceptible. It is nearly level, except near drainageways. The drainageways are trenched near their headwaters along the western edge of the Coteau des Prairies.

Most streamflow occurs in the spring and after heavy rains.

Infrastructure: Vienna and Willow Lake are the only communities currently served by the railroad. South Dakota highways 20, 25, and 28 and US Highway 212 are the main highways. Most rural areas are served by a network of secondary roads that is adequate for travel. A small airport is located at Clark.

Natural Resources: Soil is the most important natural resource in Clark County. It provides a growing medium for crops and the grasses grazed by livestock. Other natural resources are water, sand and gravel and wildlife.

The principal source of water for domestic livestock is shallow wells. The water from shallow wells is in glacial till or outwash material. About 70 percent of the county is underlain by glacial aquifers. Depth to the aquifers ranges from 1 to 585 feet. The yields and the quality of water from the wells vary greatly. In general the glacial aquifers are suitable for human and livestock use. In some cases, however, treatment may be needed for domestic use because of excess iron or manganese and because of hardness. The sodium hazard is low, but high or very high salinity may require careful management if the water is used for irrigation, even if drainage is adequate. The bedrock aquifer that underlies the county yields soft water unsuitable for irrigation because of excess sodium.

Significant deposits of sand and gravel extend roughly from north to south through the center of the county. Gravel is also in the northeast and northwest corners of the county and, to a lesser extent, in a few other areas.

White-tailed deer and upland game birds, such as ring-necked pheasants, are the major wildlife resources in the county. The numerous potholes and wetlands provide good wildlife production areas. A small herd of antelope inhabits the Crocker Hills area. Coyote and fox are the main predators in the county. Bass, bluegill, crappies, and perch provide fishing opportunities in stock-water impoundments. Walleye, northern pike, and perch inhabit Round Lake and Bailey's Lake.

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