Ohio Rev. Code § 2311.42
In any civil case pending in the court of common pleas of any county in which the parties are entitled to a trial by jury, if it appears that the board of county commissioners of the county in which the action is pending is a party to the action, the court, upon the application of either party, shall certify that fact to the clerk of the court of common pleas in any adjoining county, together with the time fixed for the trial of the case and the number of jurors to be drawn, and shall order the clerk and commissioners of jurors of that county to draw from the annual jury list the number of names of persons certified to serve as jurors in the trial of such cases in that county. The sheriff or commissioners of jurors of the county from which the jury is drawn shall summon the jurors as provided in section 2313.10 of the Revised Code. The persons so drawn and summoned shall, in obedience to the summons, appear in the court of the county in which the action is pending to serve as jurors therein, being impaneled and subject to challenge the same as in other civil cases.
Each juror shall receive the greater of the compensation established for jurors in the adjoining county or three dollars for each day of service and mileage, and all costs, including the costs incident to the drawing, issuing, and service of the venire shall be paid from the county treasury in which the action is pending upon certificate by the clerk of that county as to the service and mileage of the jurors, and to the officers performing those services, upon the certificate of those officers.
R.C. § 2311.42