SD DOH: 347 total new COVID-19 cases, 20 deaths statewide December 21, 2020 46 of Monday’s 347 total cases are considered as new probable cases. 20 South Dakota residents have died from coronavirus-related complications. The state death toll is now 1,381. 79 confirmed cases were reported in West River: 38 in Pennington County, 10 in Lawrence County, eight in Oglala Lakota County, six in Meade County, four in Perkins County, three in Dewey County, two each in Butte, Corson, Fall River and Haakon Counties and one each in Gregory and Ziebach Counties. Eight probable cases were reported West River: five in Dewey County and one each in Gregory, Stanley and Ziebach Counties.