Dean Milk Company v. City of Madison

PETITIONER: Dean Milk Company
RESPONDENT: City of Madison
LOCATION:

DOCKET NO.: 258
DECIDED BY: Vinson Court (1949-1953)
LOWER COURT:

ARGUED: Dec 07, 1950
DECIDED: Jan 15, 1951

Facts of the case

A Madison, Wisconsin ordinance prohibited the sale of milk within city limits unless it came from a local farm or was pasteurized at an approved plant within five miles of the center of Madison. When the Dean Milk Company, located in Illinois, was denied a permit to sell milk, it filed suit against the city.

Question

Did the Madison ordinance unconstitutionally interfere with interstate commerce?