Adult.

Del. Code tit. 13, § 1701
in effect
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Any person of the age of 21 years, being a citizen of this or any other state of the United States, and who has lived for 2 successive years in this State, and, for the purpose of determining domicile in any county of the State, has lived for 1 year in such county, and who has, during that time, maintained oneself and one’s family, shall be held to have acquired a legal domicile therein.
Source: DE Code (Official Site)URL: https://delcode.delaware.gov/title13/c017/index.htmlFetched: 10/4/2026

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