Microplastics (Mps) are a form of marine pollution; therefore, their presence must be identified in ecosystems such as beaches, environmental assets of economic value that offer different services to the population. The present work identifies and classifies microplastics in 12 urban, suburban, rural and natural beaches located in the states of Colima and Jalisco, Mexico. A total of 94 sediment samples were collected, analyzed and classified at the high tide line, identifying by flotation and visual inspection a total of 12,001 plastic particles that were classified by shape, color and size. The results reveal that the presences of microplastics on natural or rural beaches that are poorly developed or inaccessible have levels comparable to urban and suburban beaches. This shows that the movement of

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