Census records do not record the "specific" location of a person's birth. Only the country or state is recorded.
WISC. Vital Records -
If you go to our website at http://www.dhs.wisconsin.gov/vitalrecords/
, and look on the left hand margin, you will see "Genealogy Services". If you click on that link, it will show you "What are the earliest filed Wisconsin vital records?". If you click on that, it will provide you with an alphabetical listing of each county and the earliest filed record. Please keep in mind that it is estimated that less than 50% of the records were submitted for permanent filing before 1907.