Wisconsin Constitution
Article IV - Legislative
Section 23 - Town and county government.

[As amended Nov. 1962, April 1969, and April 1972] The legislature shall establish but one system of town government, which shall be as nearly uniform as practicable; but the legislature may provide for the election at large once in every 4 years of a chief executive officer in any county with such powers of an administrative character as they may from time to time prescribe in accordance with this section and shall establish one or more systems of county government. [1959 J.R. 68, 1961 J.R. 64, vote Nov. 1962; 1967 J.R. 49, 1969 J.R. 2, vote April 1969; 1969 J.R. 32, 1971 J.R. 13, vote April 1972]

Abolishing the office of town assessor in those counties adopting a countywide assessor system does not amount to the creation of a different system of town government. Thompson v. Kenosha County, 64 Wis. 2d 673, 221 N.W.2d 845.

Only enactments that unnecessarily interfere with the system's uniformity in a material respect are invalidated by this section. Classifications based upon population have generally been upheld. State ex rel. Wolf v. Town of Lisbon, 75 Wis. 2d 152, 248 N.W.2d 450.