The hippocampus is integral for encoding and retrieving associative information and consists of anatomically distinct subfields that contribute differentially to mnemonic processing. To date, these processes have only been examined in the context of the hippocampus and the immediate surrounding areas; however, cortical regions provide critical support in successful encoding and retrieval. The current study employed a novel functional imaging sequence for examining whole brain activity using ultrahigh resolution, examining concurrent cortical and hippocampal subfield activity encoding and retrieval of an associative memory task in healthy young adults. Diffuse regions throughout cortex were involved in successful retrieval, suggesting both common cortical activity across mnemonic processes and separable activity by condition. Hippocampal activity at encoding was not related to retrieval accuracy, nor did hippocampal subfield activity differ as a function of retrieval condition. Future studies will employ multivariate methods to further probe the relationship between hippocampal subfields and cortex.