Winnebago County Park Workshop 600 Butler Ave Winnebago, WI 54985 Phone : (920) 232-1944 Business Category Parks & Playgrounds Amusement & Recreation Winnebago County Of--parks-community Park, Workshop 600 Merritt Ave Oshkosh, WI 54901 Phone : (920) 232-1944 Business Category Government Offices-County Government Offices & Public Schools