Systems and methods are provided for a modular compressed natural gas (CNG) fueling station. The modular CNG fueling station modules include a control station skid, an interface module, and a compressor skid. The compressor skid includes a fueling station for fueling a compressed natural gas (CNG) vehicle. Each of the modules of the modular CNG fueling station are configured as fully wired “plug and play” station modules. The control station module, the interface module, and the compressor module are each pre-plumbed with electrical connections to allow the CFS station to be portable and easily installed above-ground at a utility site.