65 ILCS 5/ Illinois Municipal Code.

(65 ILCS 5/7-3-6.2)

Sec. 7-3-6.2. Split lots. Notwithstanding any other provision of this Code, the owner or owners of record of a split residential lot may disconnect a portion of the lot which (i) is a residentially zoned and platted lot currently lying partially within the corporate limits of and governed by 2 or more municipalities or lying within the unincorporated area of a county and also within the corporate limits of one or more municipalities, and contains less than 20 acres; (ii) is located on the border of the municipality; and (iii) if disconnected, will not result in the isolation of any part of the municipality from the remainder of the municipality. The owner or owners seeking to disconnect a portion of a split lot from a municipality must petition the court in the manner provided in Section 7-3-6 of this Code. In determining whether a lot shall be disconnected under this Section, the court may consider the following: (i) if disconnected, the growth prospects and planning and zoning ordinances, if any, of the municipality will not be unreasonably disrupted; (ii) if disconnected, no substantial disruption will result to existing municipal service facilities, such as, but not limited to, sewer systems, street lighting, water mains, garbage collection, and fire protection; and (iii) if disconnected, the municipality will not be unduly harmed through loss of tax revenue in the future.

An area of land, or any part thereof, disconnected under the provisions of this Section from a municipality which was incorporated at least 2 years prior to the date of the filing of the petition for disconnection shall not be subdivided into lots or blocks within one year from the date of disconnection. A plat of any such proposed subdivision shall not be accepted for recording within such one-year period, unless the land comprising such proposed subdivision shall have been thereafter annexed into a municipality.

(Source: P.A. 93-1007, eff. 1-1-05.)

(65 ILCS 5/7-3-7) (from Ch. 24, par. 7-3-7)

Sec. 7-3-7. The disconnection of any such area of land shall not exempt it from taxation for the purpose of paying any indebtedness contracted by the corporate authorities of the municipality, prior to the filing of the petition for disconnection. On the contrary, the territory shall be assessed and taxed to pay such indebtedness until this indebtedness is completely paid, the same as though the territory had not been disconnected. Except for this purpose, no county clerk shall include disconnected territory within the limits of the municipality from which the territory has been disconnected.

(Source: Laws 1961, p. 576.)

(65 ILCS 5/7-3-8) (from Ch. 24, par. 7-3-8)

Sec. 7-3-8. Whenever the boundaries of any municipality, containing part or all of any special charter school district, are changed, the clerk of such municipality shall, within 5 days after such boundary change becomes final, notify the school board of any school district which may be affected thereby and the county superintendent of schools specifying the details of such boundary change, including its effective date. Such notices shall be sent by certified mail.

(Source: Laws 1961, p. 576.)

(65 ILCS 5/Art. 7 Div. 4 heading) DIVISION 4. TERRITORIAL JURISDICTION

(65 ILCS 5/7-4-1) (from Ch. 24, par. 7-4-1)

Sec. 7-4-1. The corporate authorities in all municipalities have jurisdiction in and over all places within one-half mile of the corporate limits for the purpose of enforcing health and quarantine ordinances and regulations.

(Source: Laws 1961, p. 576.)

(65 ILCS 5/7-4-2) (from Ch. 24, par. 7-4-2)

Sec. 7-4-2. All property which (1) is owned by a municipality, and (2) lies outside the corporate limits of the municipality, and (3) does not lie within the corporate limits of any municipality, shall be subject to the ordinances, control, and jurisdiction of the municipality in all respects the same as the property owned by the municipality which lies within the corporate limits thereof.

(Source: Laws 1961, p. 576.)

(65 ILCS 5/7-4-3) (from Ch. 24, par. 7-4-3)

Sec. 7-4-3. Whenever, as a result of the annexation of the whole of a municipality to another municipality with a population of more than 200,000, unincorporated territory, not a part of either of these municipalities, has been wholly surrounded by the enlarged municipality, the jurisdiction of the enlarged municipality shall extend over the unincorporated territory so surrounded to the same extent as if that territory had been annexed at the same time as the municipality whose annexation caused the territory to be so surrounded.

(Source: Laws 1961, p. 576.)

(65 ILCS 5/7-4-4) (from Ch. 24, par. 7-4-4)

Sec. 7-4-4. The corporate authorities in all municipalities have jurisdiction over all waters within or bordering upon the municipality, to the extent of 3 miles beyond the corporate limits, but not beyond the limits of the State. Nothing in this Section shall be construed to authorize a municipality to exercise zoning power or otherwise restrict the use of private property outside of the corporate limits of the municipality.

(Source: P.A. 95-852, eff. 8-18-08.)

(65 ILCS 5/7-4-5) (from Ch. 24, par. 7-4-5)

Sec. 7-4-5. Each municipality which is situated in 2 or more counties, has jurisdiction over the entire territory embraced within its corporate limits for all municipal purposes.

(Source: Laws 1961, p. 576.)