The U.S. oyster market has experienced considerable fluctuations in sales and demand, influenced by factors like seasonal availability, price variability, and customer preferences. However, there is limited understanding of the specific market dynamics at the retail level, particularly in terms of how these factors influence oyster demand over time and across regions. Thus, this study examines the market sales and demand dynamics of oysters in the U.S., utilizing comprehensive retail-level scanner data from 2016 to 2021. This research estimated that the total sales value of oysters has been rising annually, peaking at roughly $293.75 million in 2020-21. We have identified seasonal changes in oyster sales, with peak sales occurring in November and December of a particular year. The analysis revealed that the sales of non-value-added oysters and whole oysters surpassed those of other categories and forms. Moreover, frozen and refrigerated products constituted the highest category for total oyster sales, succeeded by shelf-stable items and entrées. The sales exhibited variation across distinct geographical market locations, package sizes, and oyster types (e.g., oyster, Pacific oyster, Atlantic oyster, etc.). This study additionally measured the demand elasticities for oysters in the U.S. market. The own, cross, and expenditure elasticities of oysters varied according to different parameters. Finally, his research identified key determinants of oyster demand, including pricing trends, temporal effects, promotional effects, and regional consumption patterns. The findings elucidated consumer responsiveness to price fluctuations and the influence of the retail market, furnishing essential information for producers, retailers, and policymakers seeking to comprehend and improve the oyster market.