Wisconsin Code § 66.0217

Annexation initiated by electors and property owners
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(1) DEFINITIONS. In this section, unless the context
clearly requires otherwise:
(a) “Assessed value” means the value for general tax purposes
as shown on the tax roll for the year next preceding the filing of
any petition for annexation.
(b) “Department” means the department of administration.
(c) “Legal description” means a complete description of land
to be annexed without internal references to any other document,
and shall be described in one of the following ways:
1. By metes and bounds commencing at a monument at the
section or quarter section corner or at the end of a boundary line
of a recorded private claim or federal reservation in which the annexed land is located and in one of the following ways:
a. By government lot.
b. By recorded private claim.
c. By quarter section, section, township and range.
2. If the land is located in a recorded and filed subdivision or
in an area subject to a certified survey map, by reference as described in s. 236.28 or s. 236.34 (3).
(d) “Owner” means the holder of record of an estate in possession in fee simple, or for life, in land or real property, or a vendee
of record under a land contract for the sale of an estate in possession in fee simple or for life but does not include the vendor under
a land contract. A tenant in common or joint tenant is an owner
to the extent of his or her interest.
(e) “Petition” includes the original petition and any counterpart of the original petition.
(f) “Real property” means land and the improvements to the
land.
(g) “Scale map” means a map that accurately reflects the legal
description of the property to be annexed and the boundary of the
annexing city or village, and that includes a graphic scale on the
face of the map.
(2) DIRECT ANNEXATION BY UNANIMOUS APPROVAL. Except
as provided in this subsection and sub. (14), and subject to ss.
66.0301 (6) (d) and 66.0307 (7), if a petition for direct annexation
signed by all of the electors residing in the territory and the owners of all of the real property in the territory is filed with the city
or village clerk, and with the town clerk of the town or towns in
which the territory is located, together with a scale map and a legal description of the property to be annexed, an annexation ordinance for the annexation of the territory may be enacted by a twothirds vote of the elected members of the governing body of the
city or village without compliance with the notice requirements
of sub. (4). In an annexation under this subsection, subject to sub.
(6), the person filing the petition with the city or village clerk and
the town clerk shall, within 5 days of the filing, mail a copy of the
scale map and a legal description of the territory to be annexed to
the department and the governing body shall review the advice of
the department, if any, before enacting the annexation ordinance.
No territory may be annexed by a city or village under this subsection unless the territory to be annexed is contiguous to the annexing city or village.
(3) OTHER METHODS OF ANNEXATION. Subject to ss. 66.0301
(6) (d) and 66.0307 (7), and except as provided in sub. (14), territory contiguous to a city or village may be annexed to the city or
village in the following ways:
(a) Direct annexation by one-half approval. A petition for direct annexation may be filed with the city or village clerk if it has
been signed by either of the following:
1. A number of qualified electors residing in the territory
subject to the proposed annexation equal to at least the majority
of votes cast for governor in the territory at the last gubernatorial
election, and either of the following:
a. The owners of one-half of the land in area within the
territory.
b. The owners of one-half of the real property in assessed
value within the territory.
2. If no electors reside in the territory subject to the proposed
annexation, by either of the following:
a. The owners of one-half of the land in area within the
territory.
b. The owners of one-half of the real property in assessed
value within the territory.
(b) Annexation by referendum. A petition for a referendum on
the question of annexation may be filed with the city or village
clerk signed by a number of qualified electors residing in the territory equal to at least 20 percent of the votes cast for governor in
the territory at the last gubernatorial election, and the owners of
at least 50 percent of the real property either in area or assessed
value. The petition shall conform to the requirements of s. 8.40.
(4) NOTICE OF PROPOSED ANNEXATION. (a) An annexation
under sub. (3) shall be initiated by publishing in the territory proposed for annexation a class 1 notice, under ch. 985, of intention
to circulate an annexation petition. The notice shall contain:
1. A statement of intention to circulate an annexation
petition.
2. A legal description of the territory proposed to be annexed
and a copy of a scale map.
3. The name of the city or village to which the annexation is
proposed.
4. The name of the town or towns from which the territory is
proposed to be detached.
5. The name and post-office address of the person causing
the notice to be published who shall be an elector or owner in the
area proposed to be annexed.
6. A statement that a copy of the scale map may be inspected
at the office of the town clerk for the territory proposed to be annexed and the office of the city or village clerk for the city or village to which the territory is proposed to be annexed.
(b) The person who has the notice published shall serve a
copy of the notice, within 5 days after its publication, upon the
clerk of each municipality affected, upon the clerk of each school
district affected and upon each owner of land in a town if that
land will be in a city or village after the annexation. Service may
be either by personal service or by certified mail with return receipt requested. If required under sub. (6) (a), a copy of the notice shall be mailed to the department as provided in that
paragraph.
(5) ANNEXATION PETITION. (a) An annexation petition under
this section shall state the purpose of the petition, contain a legal
description of the territory proposed to be annexed and have attached a scale map. The petition shall also specify the population
of the territory. In this paragraph, “population” means the population of the territory as shown by the last federal census, by any
subsequent population estimate certified as acceptable by the department or by an actual count certified as acceptable by the
department.
(b) No person who has signed a petition may withdraw his or
her name from the petition. No additional signatures may be
added after a petition is filed.

(c) The circulation of the petition shall commence not less
than 10 days nor more than 20 days after the date of publication
of the notice of intention to circulate. The annexation petition is
void unless filed within 6 months of the date of publication of the
notice.
(6) DEPARTMENT REVIEW OF ANNEXATIONS. (a) Annexations within populous counties. No annexation proceeding within
a county having a population of 50,000 or more is valid unless the
person publishing a notice of annexation under sub. (4) mails a
copy of the notice to the clerk of each municipality affected and
the department, together with any fee imposed under s. 16.53
(14), within 5 days of the publication. The department shall
within 20 days after receipt of the notice mail to the clerk of the
town within which the territory lies and to the clerk of the proposed annexing village or city a notice that states whether in its
opinion the annexation is in the public interest or is against the
public interest and that advises the clerks of the reasons the annexation is in or against the public interest as defined in par. (c).
The annexing municipality shall review the advice before final
action is taken.
(b) Alternative dispute resolution. The department shall
make available on its public website a list of persons who identify
themselves to the department as professionals qualified to facilitate alternative dispute resolution of annexation, boundary, and
land use disputes. Persons identifying themselves to the department as qualified professionals shall submit to the department a
brief description of their qualifications, including membership in
relevant professional associations and certifications in areas such
as planning and alternative dispute resolution. The department
may edit the descriptions for inclusion on the list using any criteria that, in the department’s determination, is appropriate. The
department may include with the list a disclaimer that the department is not responsible for the accuracy of the descriptions, and
that inclusion of a person on the list does not represent endorsement by the department. The department may include links from
the list to other websites, such as those of relevant professional
associations and county dispute resolution centers.
(c) Definition of public interest. For purposes of this subsection “public interest” is determined by the department after consideration of the following:
1. Whether the governmental services, including zoning, to
be supplied to the territory could clearly be better supplied by the
town or by some other village or city whose boundaries are contiguous to the territory proposed for annexation which files with
the circuit court a certified copy of a resolution adopted by a twothirds vote of the elected members of the governing body indicating a willingness to annex the territory upon receiving an otherwise valid petition for the annexation of the territory.
2. The shape of the proposed annexation and the homogeneity of the territory with the annexing village or city and any other
contiguous village or city.
(d) Direct annexation by unanimous approval. 1. Upon the
request of the town affected by the annexation, the department
shall review an annexation under sub. (2) to determine whether
the annexation violates any of the following, provided that the
town submits its request to the department within 30 days of the
enactment of the annexation ordinance:
a. The requirement under sub. (2) regarding the contiguity of
the territory to be annexed with the annexing city or village.
b. The requirement under sub. (14) (b).
2. Following its review, and within 20 days of receiving the
town’s request, the department shall send a copy of its findings to
any affected landowner, the town affected by the annexation, and
the annexing city or village. If the department does not complete
its review and send a copy of its findings within 20 days of receiving the town’s request, the effect on the town and the annexing
city or village shall be the same as if the department found no violation of the requirements specified in subd. 1. If the department finds that an annexation violates any requirement specified
in subd. 1., the town from which territory is annexed may, within
45 days of its receipt of the department’s findings, challenge the
annexation in circuit court.
3. If the town commences an action to challenge the annexation and the circuit court rules against the town, the town shall
pay the court costs and the city’s or village’s reasonable attorney
fees incurred in defending the annexation. If the town commences an action to challenge the annexation and the circuit court
rules in the town’s favor and upholds the town’s challenge, the
city or village shall pay the court costs and the town’s reasonable
attorney fees incurred in challenging the annexation.
(7) REFERENDUM. (a) Notice. 1. Within 60 days after the filing of the petition under sub. (3), the common council or village
board may accept or reject the petition and if rejected no further
action may be taken on the petition. Acceptance may consist of
adoption of an annexation ordinance. Failure to reject the petition obligates the city or village to pay the cost of any referendum
favorable to annexation.
2. If the petition is not rejected the clerk of the city or village
with whom the annexation petition is filed shall give written notice of the petition by personal service or registered mail with return receipt requested to the clerk of any town from which territory is proposed to be detached and shall give like notice to any
person who files a written request with the clerk. The notice shall
indicate whether the petition is for direct annexation or whether it
requests a referendum on the question of annexation.
3. If the notice indicates that the petition is for a referendum
on the question of annexation, the clerk of the city or village shall
file the notice as provided in s. 8.37. If the notice indicates that
the petition is for a referendum on the question of annexation, the
town clerk shall give notice as provided in par. (c) of a referendum of the electors residing in the area proposed for annexation
to be held not less than 70 days nor more than 100 days after the
date of personal service or mailing of the notice required under
this paragraph. If the notice indicates that the petition is for direct
annexation, no referendum shall be held unless within 30 days after the date of personal service or mailing of the notice required
under this paragraph, a petition conforming to the requirements
of s. 8.40 requesting a referendum is filed with the town clerk as
provided in s. 8.37, signed by at least 20 percent of the electors residing in the area proposed to be annexed. If a petition requesting
a referendum is filed, the clerk shall give notice as provided in
par. (c) of a referendum of the electors residing in the area proposed for annexation to be held not less than 70 days nor more
than 100 days after the receipt of the petition and shall mail a
copy of the notice to the clerk of the city or village to which the
annexation is proposed. The referendum shall be held at a convenient place within the town to be specified in the notice.
(b) Clerk to act. If more than one town is involved, the city or
village clerk shall determine as nearly as is practicable which
town contains the most electors in the area proposed to be annexed and shall indicate in the notice required under par. (a) that
determination. The clerk of the town so designated shall perform
the duties required under this subsection and the election shall be
conducted in the town as are other elections.
(c) Publication of notice. The notice shall be published in a
newspaper of general circulation in the area proposed to be annexed on the publication day next preceding the referendum election and one week prior to that publication.
(d) How conducted. The referendum shall be conducted by
the town election officials but the town board may reduce the

number of election officials for that election. The ballots shall
contain the words “For annexation” and “Against annexation”
and shall otherwise conform to the provisions of s. 5.64 (2). The
election shall be conducted as are other town elections in accordance with chs. 6 and 7 to the extent applicable.
(e) Canvass; statement to be filed. The election inspectors
shall make a statement of the holding of the election showing the
whole number of votes cast, and the number cast for and against
annexation, attach their affidavit to the statement and immediately file it in the office of the town clerk. They shall file a certified statement of the results in the office of the clerk of each other
municipality affected.
(f) Costs. If the referendum is against annexation, the costs of
the election shall be borne by the towns involved in the proportion that the number of electors of each town within the territory
proposed to be annexed, voting in the referendum, bears to the total number of electors in that territory, voting in the referendum.
(g) Effect. If the result of the referendum is against annexation, all previous proceedings are nullified. If the result of the
referendum is for annexation, failure of any town official to perform literally any duty required by this section does not invalidate
the annexation.
(8) ANNEXATION ORDINANCE. (a) An ordinance for the annexation of the territory described in the annexation petition under sub. (3) may be enacted by a two-thirds vote of the elected
members of the governing body not less than 20 days after the
publication of the notice of intention to circulate the petition and
not later than 120 days after the date of filing with the city or village clerk of the petition for annexation or of the referendum election if favorable to the annexation. If the annexation is subject to
sub. (6) the governing body shall first review the reasons given by
the department that the proposed annexation is against the public
interest. An ordinance under this subsection may temporarily
designate the classification of the annexed area for zoning purposes until the zoning ordinance is amended as prescribed in s.
62.23 (7) (d). Before introduction of an ordinance containing a
temporary classification, the proposed classification shall be referred to and recommended by the plan commission. The authority to make a temporary classification is not effective when the
county ordinance prevails during litigation as provided in s. 59.69
(7).
(b) The ordinance may annex the territory to an existing ward
or may create an additional ward.
(c) The annexation is effective upon enactment of the annexation ordinance. The board of school directors in a 1st class city is
not required to administer the schools in any territory annexed to
the city until July 1 following the annexation.
(9) FILING REQUIREMENTS; SURVEYS. (a) The clerk of a city
or village which has annexed territory shall file immediately with
the secretary of administration a certified copy of the ordinance,
certificate and plat, and shall send one copy to each company that
provides any utility service in the area that is annexed. The city
or village shall also file with the county clerk or board of election
commissioners the report required by s. 5.15 (4) (b). The clerk
shall record the ordinance with the register of deeds and file a
signed copy of the ordinance with the clerk of any affected school
district. Failure to file, record or send does not invalidate the annexation and the duty to file, record or send is a continuing one.
The ordinance that is filed, recorded or sent shall describe the annexed territory and the associated population. The information
filed with the secretary of administration shall be utilized in making recommendations for adjustments to entitlements under the
federal revenue sharing program and distribution of funds under
ch. 79. The clerk shall certify annually to the secretary of administration and record with the register of deeds a legal description
of the total boundaries of the municipality as those boundaries
existed on December 1, unless there has been no change in the 12
months preceding.
(b) Within 10 days of receipt of the ordinance, certificate and
plat, the secretary of administration shall forward 2 copies of the
ordinance, certificate and plat to the department of transportation, one copy to the department of administration, one copy to
the department of revenue, one copy to the department of public
instruction, one copy to the department, one copy to the department of natural resources, one copy to the department of agriculture, trade and consumer protection and 2 copies to the clerk of
the municipality from which the territory was annexed.
(c) Any city or village may direct a survey of its present
boundaries to be made, and when properly attested the survey and
plat may be filed in the office of the register of deeds in the
county in which the city or village is located. Upon filing, the
survey and plat are prima facie evidence of the facts set forth in
the survey and plat.
(10) QUALIFICATIONS OF ELECTORS AND OWNERS; ELECTOR
DETERMINATION. (a) Under this section, qualifications as to
electors and owners shall be determined as of the date of filing a
petition, except that all qualified electors residing in the territory
proposed for annexation on the day of a referendum election may
vote in the election. Residence and ownership shall be bona fide
and not acquired for the purpose of defeating or invalidating the
annexation proceedings.
(b) For purposes of this section, if a number of electors cannot
be determined on the basis of reported election statistics, the
number shall be determined in accordance with s. 60.74 (6).
(11) ACTION TO CONTEST ANNEXATION. (a) An action on
any grounds, whether procedural or jurisdictional, to contest the
validity of an annexation shall be commenced within the time after adoption of the annexation ordinance provided by s. 893.73
(2). During the action, the application of, and jurisdiction over,
any county zoning in the area annexed is as provided under s.
59.69 (7).
(b) An action contesting an annexation shall be given preference in the circuit court. The court and the parties are encouraged to consider the application of s. 802.12 to an action contesting an annexation.
(c) Except as provided in sub. (6) (d) 2. , no action on any
grounds, whether procedural or jurisdictional, to contest the validity of an annexation under sub. (2), may be brought by any
town.
(12) VALIDITY OF PLATS. If an annexation is declared invalid
but before the declaration and subsequent to the annexation a plat
is submitted and is approved as required in s. 236.10 (1) (a), the
plat is validly approved despite the invalidity of the annexation.
(13) EFFECTIVE DATE OF ANNEXATIONS. Because the creation of congressional, legislative, supervisory and aldermanic
districts of equal population is a matter of statewide concern, any
annexation action that affects a tract of land that is the subject of
an ordinance enacted or resolution adopted by any city during the
period from January 1, 1990, to April 1, 1991, or any later date,
expressing an intent to not exercise the city’s authority to annex
territory before April 1, 1991, or the specified later date, taken by
a municipality during the period beginning on April 1 of the year
commencing after each federal decennial census of population
and ending on June 30 of the year commencing after that census,
is effective on July 1 of the year commencing after that census or
at such later date as may be specified in the annexation ordinance.
This subsection first applies to annexations effective after March
31, 1991.
(14) LIMITATIONS ON ANNEXATION AUTHORITY. (a) 1. Except as provided in subd. 2., no territory may be annexed by a city

or village under this section unless the city or village agrees to
pay annually to the town, for 5 years, an amount equal to the
amount of property taxes that the town levied on the annexed territory, as shown by the tax roll under s. 70.65, in the year in which
the annexation is final.
2. No payments under subd. 1. must be made if the city or
village, and the town, enter into a boundary agreement under s.
66.0225, 66.0301, or 66.0307.
(b) 1. No territory may be annexed by a city or village under
this section if no part of the city or village is located in the same
county as the territory that is subject to the proposed annexation
unless one of the following applies:
a. The town board adopts a resolution approving the proposed annexation.
b. The annexation is by unanimous approval under sub. (2).
2. Any subsequent annexation by the city or village in the
county of the territory annexed under subd. 1. shall either be approved by the town board or be annexed by unanimous approval
under sub. (2).
(15) LAW APPLICABLE. Section 66.0203 (8) (c) applies to annexations under this section.

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