As rates vary by child care setting, the amount of time a child is in care, age group, and geographic area, it is important that these factors be considered when defining market rates across Ohio. ODJFS has utilized a child care market rate survey (MRS), conducted approximately every two years, to establish the current market rates for child care programs across Ohio by provider type, child age group, and region. For the 2018 Ohio Child Care MRS, ODJFS worked with Strategic Research Group (SRG), an independent third-party vendor, to design and administer the MRS and to analyze the market rate data. The goal of the MRS is to characterize the unsubsidized (i.e., private pay) market rates for child care throughout the state. The sampling frame used for the 2018 MRS included ODJFS regulated child care centers, Type A family child care (FCC) homes, Type B FCC homes and approved day camps, as well as preschool and school age child care programs licensed by the Ohio Department of Education (ODE) that are not regulated by ODJFS, but with whom they have a provider agreement. For the 2018 survey, 7,142 unique provider locations were identified and included in the sample. The survey was conducted by SRG from mid-November to mid-January. (author abstract)