Establishing Paternity in Muskingum County

Reviewed by Stephanie Green · Managing Partner & Co-Founder · Last updated June 11, 2026

Muskingum County, Ohio · Zanesville

When a child's parents were never married, establishing paternity is the first step to any father's custody or parenting-time rights, and to a support order. In Muskingum County — unusually — these parentage and custody cases are handled by the Domestic Relations Court (not the Juvenile Court). Paternity can be established by acknowledgment, genetic testing, or a Complaint to Determine Parentage.

How do I establish paternity in Muskingum County, Ohio?

Three routes: sign a voluntary Acknowledgment of Paternity; request genetic testing (county fee $100 per individual tested); or file a Complaint to Determine Parentage (tab 25) in the Domestic Relations Court. To set custody, parenting time, and support in the same case, add a Complaint for Custody (tab 19) and/or Complaint for Child Support (tab 23) with the DR3 parenting affidavit and a Title IV-D Application. The complaint deposit is $175 (+$50 per party for Sheriff service); a fee waiver is available.

Ohio Custody by the Numbers

Best interest The single standard that governs every Ohio custody decision Source: Ohio Revised Code § 3109.04
No set age There is no age a child can choose a parent — the judge weighs a mature child's wishes Source: Ohio Revised Code § 3109.04(B)
Change in circumstances Required, plus a best-interest finding, before the residential parent can be changed Source: Ohio Revised Code § 3109.04(E)(1)
Shared parenting Either parent may ask the court for a joint parenting plan Source: Ohio Revised Code § 3109.04(G)

Compare Types of Custody in Ohio

Custody type	Who makes major decisions	Where the child lives	Best when
Shared parenting	Both parents jointly, under a written plan	Time is split per the plan (not always 50/50)	Parents can communicate and cooperate on decisions
Sole legal & residential	One parent	Primarily with that parent	One parent is unable or unwilling to co-parent
Split custody	Each parent for the child in their care	Siblings are divided between the two homes	Rare — only when it serves each child's best interest
Legal custody to a non-parent	The relative or caregiver granted custody	With the non-parent caregiver	Neither parent can safely care for the child

Where to File: Muskingum County Court of Common Pleas — Domestic Relations Division

22 N. 5th Street, 2nd Floor
Phone: (740) 455-7190
Hours: Monday–Friday, 8:00 a.m.–4:30 p.m. (Clerk's DR Division files documents 8:30 a.m.–4:30 p.m.)
Website: www.muskingumcountyoh.gov/Courts/Domestic-Relations/

A Muskingum County paternity case fits if…

The child's parents were never married to each other.
You need paternity established before a father can ask for custody or parenting time, or before support can be set.
Paternity is disputed, or you want a court order for custody, parenting time, or support.
Ohio is the child's home state under the UCCJEA — the child has lived in Ohio for the last six months.

Filing Fees

Acknowledgment: no court fee · Genetic testing: $100 per individual · Parentage/custody/support complaint: $175 deposit (+$50 per party for Sheriff service) · fee waiver available. Confirm current amounts with the Clerk at (740) 455-7898.

Forms & Filing Packets

Agreed paternity (acknowledgment or genetic testing) — No court filing fee for an acknowledgment · genetic testing $100 per person

When both parents agree, sign an Acknowledgment of Paternity, or request genetic testing ($100 per individual). To then set support, open a IV-D case and run the worksheet.

Application for Child Support Services (Title IV-D) (Muskingum County, tab 54) — Opens a IV-D case with CSEA so support is collected by wage withholding and enforced. File whenever support is involved.
Ohio Child Support Computation Worksheet (2024 Income Shares) — Run the official Ohio Child Support Calculator, print, and sign. Required any time the court sets or changes support.

Parentage case (disputed or court orders needed) — $175 complaint deposit (+$50 per party for Sheriff service)

File a Complaint to Determine Parentage (tab 25) in the Domestic Relations Court. Add a Complaint for Custody and/or Child Support to set custody, parenting time, and support in one case. The Court can order genetic testing.

Complaint to Determine Parentage (Muskingum County, tab 25) — Asks the Domestic Relations Court to establish paternity for a child born to unmarried parents (R.C. Ch. 3111).
Complaint for Custody (Muskingum County, tab 19) — Asks the court to allocate parental rights and name a residential parent and legal custodian (proof of paternity required).
Complaint for Child Support (Muskingum County, tab 23) — Asks the Domestic Relations Court to establish a child-support order; file the Title IV-D Application with it.
Parenting Proceeding Affidavit DR3 (UCCJEA · R.C. 3127.23) (Muskingum County, tab 50) — Lists where each child has lived for the last 5 years, confirming Ohio's UCCJEA jurisdiction. Required in any case with minor children.
Application for Child Support Services (Title IV-D) (Muskingum County, tab 54) — Opens a IV-D case with CSEA so support is collected by wage withholding and enforced. File whenever support is involved.
Ohio Child Support Computation Worksheet (2024 Income Shares) — Run the official Ohio Child Support Calculator, print, and sign. Required any time the court sets or changes support.

How to File Paternity in Muskingum County

Pick the route. If both parents agree, an Acknowledgment of Paternity is simplest. If paternity is disputed or you need custody or support orders, file a Complaint to Determine Parentage (tab 25).
Request genetic testing if needed. Genetic testing can confirm paternity ($100 per individual tested). The Court can order it in a contested parentage case.
Add custody and support. File a Complaint for Custody (tab 19) and/or Complaint for Child Support (tab 23) with the DR3 parenting affidavit and a Title IV-D Application to resolve everything in one case.
Complete the seminar and attend the hearing. Complete the Co-Parenting Seminar (register at (740) 455-7190), then attend the hearing where the Court applies the R.C. 3109.04(F) best-interest factors.

Muskingum County Practice Notes

Paternity unlocks a father's rights. Without established paternity, an unmarried father cannot enforce custody or parenting time, and the mother has sole custody by default. Establishing paternity is the first step to any father's parenting order.
One court, and the seminar applies. Because the Domestic Relations Court hears these cases, the Co-Parenting Seminar requirement (Local Rule 7.07) applies to a complaint for allocation of parental rights or parenting time, just as in a divorce.
One court hears everything — even unmarried-parent cases. Unlike most Ohio counties, Muskingum County routes ALL family-law matters to the Domestic Relations Court (Local Rule 10.01): divorce, dissolution, legal separation, annulment, parentage, custody, parenting time, support, non-parent custody, and DVCPO/stalking petitions. The Juvenile Court handles only delinquency and abuse/neglect/dependency; the Probate Court handles only adoptions.

Frequently Asked Questions

How do I establish paternity in Muskingum County?: Three ways: a voluntary Acknowledgment of Paternity, genetic testing (county fee $100 per individual tested), or a Complaint to Determine Parentage (tab 25) in the Domestic Relations Court. A signed acknowledgment has the force of a court order once final, and the DR Court can order genetic testing in a contested case.
Where do unmarried parents file for custody, parenting time, or child support?: Also in the Domestic Relations Court. Unlike many Ohio counties, Muskingum County's DR Court — not the Juvenile Court — hears parentage, custody, parenting time, and support for unmarried parents (Local Rule 10.01). The Juvenile Court handles only delinquency and abuse/neglect/dependency cases.
How much does it cost to file a family-law case in Muskingum County?: A divorce, legal separation, or annulment deposit is $225; a dissolution is $175 ($200 with children); a custody, parenting-time, or support complaint is $175; a post-judgment motion is $150. Add $50 per party for Sheriff service. There is no fee for a DVCPO petitioner. A Civil Fee Waiver Affidavit can waive the deposit. Confirm current amounts with the Clerk at (740) 455-7898.
What standard does the Muskingum County court use to decide custody?: The R.C. 3109.04(F)(1) best-interest factors — each parent's wishes, the child's wishes (when of sufficient age), the child's interaction with parents and siblings, adjustment to home/school/community, everyone's mental and physical health, which parent is more likely to honor parenting time, support compliance, criminal history, and any history of abuse.
What is a Title IV-D application and why do I need one?: A Title IV-D Application (tab 54) opens a case with the Child Support Enforcement Agency (CSEA). Once opened, CSEA collects support through automatic wage withholding, distributes it, and can enforce the order through license suspension, tax intercept, credit reporting, and contempt referrals. File it whenever a support order is issued.

Free Local Resources in Muskingum County

Muskingum County Clerk of Courts — Domestic Relations Division. Files all DR documents at 22 N. 5th Street, 2nd Floor, Zanesville — (740) 455-7898. An advance cost deposit is required before filing (Local Rule 1.07); a Civil Fee Waiver Affidavit can waive it. Forms are on the Court's Domestic Forms page (tabs 1–66).
Domestic Relations Help Desk (free legal clinic). Free help for income-eligible people with simple custody, divorce, and dissolution cases — 4th Monday monthly, 11:00 a.m.–1:00 p.m., at the DR Court, 22 N. 5th Street, 2nd Floor. Preregister with Legal Aid of Southeastern & Central Ohio (LASCO) at (614) 827-0504 (intake (866) 529-6446; seols.org).
Domestic Relations Court Mediation Department. The Court runs an in-house Mediation Department. It can order mediation, accepts voluntary post-decree requests without a motion, and offers mediation before a case is filed — call (740) 455-7190 (Local Rules 3.01–3.09).
Transitions (domestic-violence shelter & CPO advocacy). Provides shelter and free protection-order advocacy and can attend court with you — (740) 454-3213. There is no filing fee for a DVCPO petitioner (R.C. 3113.31(K)).
Co-Parenting Seminar registration. The required 2-hour Co-Parenting Seminar (Local Rule 7.07) is offered online; register by calling the Court at (740) 455-7190. The $10 seminar fee is among the Court's costs — confirm the current cost when registering.

Related to your paternity case

Child Support — Calculate, establish, or modify support under Ohio's guidelines.
Grandparents' Rights — Seek visitation or custody when it serves the child's best interest.
Post-Decree Modification — Update custody, support, or parenting orders after your case ends.

Related guides

In-depth, attorney-written guides on paternity and related Ohio family law topics.

Fathers' Rights in Ohio: Custody, Paternity, and Parenting Time — Ohio law does not favor mothers over fathers — but unmarried fathers must establish paternity before they have any rights. Here's how fathers protect their relationship with their children.
Ohio Child Custody Laws: What Every Parent Should Know — Ohio custody law turns on one principle: the best interest of the child. This guide explains sole custody, shared parenting, the statutory factors, and how courts decide.
Child Support Calculation in Ohio: How the Formula Works — Ohio calculates child support with the income shares model, combining both parents' incomes to set a shared obligation. Here's how the formula works and what changes the bottom line.

Keep exploring

Ohio Paternity guide — Statewide overview of paternity in Ohio.
Columbus family law — Local attorneys and courts serving the Columbus metro.
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