755 ILCS 5/2-1
2021 Illinois Compiled Statutes|Chapter 755 - ESTATES|755 ILCS 5/ - Probate Act of 1975.|Article II - Descent And Distribution

 (from Ch. 110 1/2, par. 2-1)Sec. 2-1. Rules of descent and distribution. The intestate real and  personal estate of a resident decedent and the intestate real estate in  this State of a nonresident decedent, after all just claims against his  estate are fully paid, descends and shall be distributed as follows:(a) If there is a surviving spouse and also a descendant of the  decedent: 1/2 of the entire estate to the surviving spouse and 1/2 to  the decedent's descendants per stirpes.(b) If there is no surviving spouse but a descendant of the  decedent:  the entire estate to the decedent's descendants per stirpes.(c) If there is a surviving spouse but no descendant of the  decedent:  the entire estate to the surviving spouse.(d) If there is no surviving spouse or descendant but a parent,  brother, sister or descendant of a brother or sister of the decedent:  the entire estate to the parents, brothers and sisters of the decedent  in equal parts, allowing to the surviving parent if one is dead a double  portion and to the descendants of a deceased brother or sister per  stirpes the portion which the deceased brother or sister would have  taken if living.(e) If there is no surviving spouse, descendant, parent, brother,  sister or descendant of a brother or sister of the decedent but a  grandparent or descendant of a grandparent of the decedent: (1) 1/2 of  the entire estate to the decedent's maternal grandparents in equal parts  or to the survivor of them, or if there is none surviving, to their  descendants per stirpes, and (2) 1/2 of the entire estate to the  decedent's paternal grandparents in equal parts or to the survivor of  them, or if there is none surviving, to their descendants per stirpes.  If there is no surviving paternal grandparent or descendant of a  paternal grandparent, but a maternal grandparent or descendant of a  maternal grandparent of the decedent:  the entire estate to the  decedent's maternal grandparents in equal parts or to the survivor of  them, or if there is none surviving, to their descendants per stirpes.  If there is no surviving maternal grandparent or descendant of a  maternal grandparent, but a paternal grandparent or descendant of a  paternal grandparent of the decedent:  the entire estate to the  decedent's paternal grandparents in equal parts or to the survivor of  them, or if there is none surviving, to their descendants per stirpes.(f) If there is no surviving spouse, descendant, parent, brother,  sister, descendant of a brother or sister or grandparent or descendant  of a grandparent of the decedent: (1) 1/2 of the entire estate to the  decedent's maternal great-grandparents in equal parts or to the survivor  of them, or if there is none surviving, to their descendants per  stirpes, and (2) 1/2 of the entire estate to the decedent's paternal  great-grandparents in equal parts or to the survivor of them, or if  there is none surviving, to their descendants per stirpes.  If there is  no surviving paternal great-grandparent or descendant of a paternal  great-grandparent, but a maternal great-grandparent or descendant of a  maternal great-grandparent of the decedent:  the entire estate to the  decedent's maternal great-grandparents in equal parts or to the survivor  of them, or if there is none surviving, to their descendants per  stirpes.  If there is no surviving maternal great-grandparent or  descendant of a maternal great-grandparent, but a paternal  great-grandparent or descendant of a paternal great-grandparent of the  decedent:  the entire estate to the decedent's paternal  great-grandparents in equal parts or to the survivor of them, or if  there is none surviving, to their descendants per stirpes.(g) If there is no surviving spouse, descendant, parent, brother,  sister, descendant of a brother or sister, grandparent, descendant of a  grandparent, great-grandparent or descendant of a great-grandparent of  the decedent: the entire estate in equal parts to the nearest kindred of  the decedent in equal degree (computing by the rules of the civil law)  and without representation.(h) If there is no surviving spouse and no known kindred of the  decedent:  the real estate escheats to the county in which it is  located; the personal estate physically located within this State and  the personal estate physically located or held outside this State which  is the subject of ancillary administration of an estate being  administered within this State escheats to the county of which the  decedent was a resident, or, if the decedent was not a resident of this  State, to the county in which it is located; all other personal property  of the decedent of every class and character, wherever situate, or the  proceeds thereof, shall escheat to this State and be delivered to the  State Treasurer  pursuant to the Revised Uniform Unclaimed Property Act.In no case is there any distinction between the kindred of the whole  and the half blood.  (Source: P.A. 100-22, eff. 1-1-18.)