ILCS » Chapter 750 · Act 46
Illinois Compiled Statutes

750 ILCS 46/603 (2026)

Subject matter and personal jurisdiction

✓ current as of May 2026
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(750 ILCS 46/603)
    Sec. 603. Subject matter and personal jurisdiction.
    (a) The circuit courts of this State shall have jurisdiction of an action brought under this Act. In a civil action not brought under this Act, the provisions of this Act shall apply if parentage is at issue. The court may join any action under this Act with any other civil action in which this Act is applicable.
    (b) An individual may not be adjudicated to be a parent unless the court has personal jurisdiction over the individual.
    (c) A court of this State having jurisdiction to adjudicate parentage may exercise personal jurisdiction over a nonresident individual, or the guardian or conservator of the individual, if the conditions prescribed in Section 201 of the Uniform Interstate Family Support Act exist, including, but not limited to: if the individual engaged in sexual intercourse in this State and the child may have been conceived by that act of intercourse; the individual consented to assisted reproduction that occurred in this State that resulted in the conception of the child; if the individual consented to a medical procedure that occurred in this State related to assisted reproduction that resulted in the conception of the child; if the child was born or is anticipated to be born in this State; an individual consented to a mental health consultation that occurred in this State pursuant to the Gestational Surrogacy Act, or there is any other basis consistent with the constitutions of this State and the United States for the exercise of personal jurisdiction.
    (d) Lack of jurisdiction over one individual does not preclude the court from making an adjudication of parentage binding on another individual over whom the court has personal jurisdiction.
(Source: P.A. 104-448, eff. 12-12-25.)

    
Notes of Decisions
Cited in 4 cases (2 in the last 5 years), 2017–2025 · leading case: In re Est. of Jagodowski, 2017 IL App (2d) 160723 (Ill. App. Ct. 2017).
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In re Est. of Jagodowski, 2017 IL App (2d) 160723 (Ill. App. Ct. 2017). · cites it 2× “” 750 ILCS 46/603 (West Supp. 2015). ¶ 41 We are not persuaded by Boguslaw’s foreign case law.”
In re Est. of Jagodowski, 2017 IL App (2d) 160723 (Ill. App. Ct. 2017). “” 750 ILCS 46/603 (West Supp. 2015). She continues that Boguslaw’s standing is limited by section 205(a), which enumerates those individuals who may challenge the presumption of - 21 - 2017 IL App (2d) 160723 parentage.”
Dep't of Healthcare & Fam. Servs. v. Richard L.H., 2025 IL App (4th) 250402-U (Ill. App. Ct. 2025). “Section 603(a) of the Illinois Parentage Act of 2015 (Parentage Act) (750 ILCS 46/603(a) (West 2022)) clearly states that “[t]he circuit courts of this State shall have jurisdiction of an action brought under this Act.”
In re Illinois Dep't of Healthcare & Fam. Servs. ex rel Billups, 2025 IL App (1st) 241353-U (Ill. App. Ct. 2025). “Additionally, he argues that the circuit court improperly disregarded evidence which demonstrated that the Sangamon Street Address was not his “usual place of abode” at the time of service.”
— 750 ILCS 46/603(a) — 1 case
Dep't of Healthcare & Fam. Servs. v. Richard L.H., 2025 IL App (4th) 250402-U (Ill. App. Ct. 2025). “Section 603(a) of the Illinois Parentage Act of 2015 (Parentage Act) (750 ILCS 46/603(a) (West 2022)) clearly states that “[t]he circuit courts of this State shall have jurisdiction of an action brought under this Act.”
— 750 ILCS 46/603(b) — 1 case
In re Illinois Dep't of Healthcare & Fam. Servs. ex rel Billups, 2025 IL App (1st) 241353-U (Ill. App. Ct. 2025). “Additionally, he argues that the circuit court improperly disregarded evidence which demonstrated that the Sangamon Street Address was not his “usual place of abode” at the time of service.”
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