St. Croix County Highway A is a direct connection from New Richmond, WI. to Hudson, WI. It starts at Wisconsin 64 and heads east with Wisconsin Business 64 then heads south. It reaches the western terminus of County road G. It heads west with County road E for about half a mile before it heads south and reaches the southern terminus of County Road I. It heads into the village of Burkhardt.It heads south and then takes the road west at where the northern terminus of County road U.