What if the biological parent lives in another state — can I still adopt in Missouri?

Yes. A biological parent living in another state does not change the basic path: you petition the Circuit Court in Missouri, and Missouri has no minimum residency period before you can file (RSMo § 453.010). The out-of-state parent mainly affects how that parent gets notice and gives consent, which are the details to plan for.

What stays the same for you:

• Court: Stepparent adoptions are filed in the Circuit Court. Your county's clerk can confirm local filing steps.
• Residency: Missouri sets no minimum waiting period for residency (RSMo § 453.010).
• Home study: Missouri's stepparent process waives the home study (RSMo § 453.070).
• Timeline: A stepparent adoption typically takes about 3-6 months.

What the other parent's location can affect:

• Parental consent: Missouri's adoption statute includes parental consent provisions for a child under 18 (RSMo § 453.030). If the other parent is willing, the practical question is how to get a signed consent to the court from another state. The Circuit Court clerk can tell you what form of signing and verification your county expects.
• Notice to the parent: If the other parent has not agreed, or you don't know where they are, the rules for notifying them and what the court will require depend on your facts. Ask the clerk, or consult an attorney about your specific situation.
• Abandonment: Missouri's statute includes a 6-month abandonment period (RSMo § 453.040). Whether it applies depends on your circumstances, and that is a question for an attorney or the clerk. Living far away is not the same thing as abandonment.

If your child is 14 or older: Missouri also provides for the child's own consent at that age (RSMo § 453.030).

Cost comparison: Court filing fees run about $200-$500, and the typical total cost when you file on your own is under $1,000. Attorney-handled adoptions commonly run $3,000-$5,000+.