Johnson Lake   Be the first to submit input for Johnson Lake. If you have info on Johnson Lake, Sedgwick County, Colorado please submit it here to improve this web site.          These outdoors activities are available near Johnson Lake.   Hotels Near Johnson Lake: Budget Host Platte Valley Inn, Julesburg, 7 miles away Days Inn Sidney, Sidney, 42 miles away Holiday Inn SIDNEY (I-80 & HWY 385), Sidney, 43 miles away Americinn - Sidney, Ne, Sidney, 43 miles away Hampton Inn Sidney, NE, Sidney, 43 miles away