South Dakota Child Custody: A Parent's Guide

In short: South Dakota doesn't set out a fixed statutory checklist of best-interest factors for most custody cases, courts weigh a well-established set of judge-developed considerations, with additional statutory factors kicking in when a parent requests joint physical custody. Relocating generally requires 45 days' written notice by certified mail, and the other parent has 30 days to object before the move is authorized.

This is an educational overview written for parents, not lawyers. It isn't legal advice. For anything beyond general understanding, talk to a licensed South Dakota family law attorney.

What South Dakota generally provides

Under SDCL § 25-4-45, South Dakota courts award custody guided by what serves the child's temporal, mental, and moral welfare. Unlike many states, the statute itself doesn't enumerate a specific list of best-interest factors for most cases, though the South Dakota Supreme Court has established guiding principles trial courts consistently apply.

Important terminology

• Temporal, mental, and moral welfare: South Dakota's statutory phrasing for the child's overall best interest.
• Friendly-parent factor: a parent's willingness to encourage frequent contact between the child and the other parent, a factor courts weigh in practice even without a codified list.
• Joint physical custody request: the specific circumstance that triggers additional statutory factors under SDCL § 25-4A-24.

How custody works in South Dakota

Judge-developed principles, not a fixed checklist

In practice, South Dakota judges examine each parent's mental and physical health and fitness, capacity to meet the child's physical and emotional needs, willingness to encourage frequent contact with the other parent, ability to serve as a role model for responsible adulthood, history of care and which parent has served as the primary caregiver, the quality of the relationship between the child and each parent, and the child's adjustment to home, school, and community. If the child is old enough to form an intelligent preference, the court may consider that too.

Additional factors for joint physical custody

Where either parent specifically requests joint physical custody, SDCL § 25-4A-24 requires courts to weigh additional statutory factors, including whether each parent is a suitable physical custodian, on top of the general best-interest analysis.

Parenting schedules

Once custody is set, families commonly build the actual schedule around patterns like 2-2-3 or week on, week off. See what is a parenting plan for what a strong plan generally covers, how to choose a custody schedule for a general framework, and the custody schedule generator to build the actual calendar.

Moving with your child (relocation)

Where an existing custody order or enforceable agreement doesn't already govern relocation, a parent who intends to change their principal residence must provide reasonable written notice by certified mail or admission of service, at least 45 days before relocation, or a shorter period if reasonable under the specific facts. The notice must state where you're relocating, why the move is in the child's best interest, and a proposed visitation plan. If the other parent objects, they must request a hearing within 30 days; if no objection is filed, the relocation can proceed after 30 days without a hearing. Notice isn't required if the move brings the child closer to the other parent, stays within the child's current school district, there's a valid restraining order protecting you or the child from the other parent, or the other parent has a recent domestic-violence-related conviction against you or the child. See moving to another state with shared custody for how relocation standards tend to work more broadly across states.

Common questions

How is child support calculated? South Dakota uses the income shares model under SDCL § 25-7-6.2: both parents' net monthly incomes are combined and matched to the statutory obligation schedule (covering combined incomes up to $30,000/month), with each parent responsible for their proportional share, a $871/month self-support reserve protecting lower-income obligors, and health insurance and childcare added as separate costs.

Can a custody order be changed later? Yes, generally on a showing of a substantial change in circumstances and that a modification serves the child's best interest.

What if my co-parent won't follow the custody order? You can file a motion for contempt with the court. Courts can order makeup time and, in serious or repeated cases, hold a parent in contempt.

Practical considerations

Because South Dakota doesn't lean on one fixed statutory factor list for most custody decisions, documenting your caregiving history and involvement concretely, rather than assuming a specific factor will automatically control, tends to matter more, and is worth discussing directly with a South Dakota family law attorney. Whatever the order specifies, the operational part that follows it, keeping both households aligned on the same schedule, logging change requests instead of relying on memory, and keeping a record if an enforcement issue arises, is a separate, ongoing piece worth planning for.

Official South Dakota resources

• SDCL § 25-4-45 (Child Custody Provisions; Modification; Preference of Child)
• South Dakota Unified Judicial System: Relocate With Minor Child

Related OnePage resources

• Custody schedule generator
• What is a parenting plan
• How to choose a custody schedule
• Moving to another state with shared custody

Related South Dakota pages

• South Dakota hub