Wisconsin cities starting with O ← Back to Wisconsin churches ★ Popular A B C D E F G H I J K L M N O P R S T U V W Oak Creek, WI 17 Oconomowoc, WI 28 Oconto, WI 10 Oconto Falls, WI 5 Omro, WI 7 Onalaska, WI 20 Oneida, WI 6 Ontario, WI 6 Oostburg, WI 5 Oregon, WI 10 Osceola, WI 10 Oshkosh, WI 73 Osseo, WI 9 Oxford, WI 5