Marakkanam Police Station serves as the primary law enforcement authority for the coastal town of Marakkanam and its surrounding rural and coastal villages within the Viluppuram district. Operating under the jurisdiction of the Kottakuppam / Tindivanam Police Subdivision, the station plays a crucial role in maintaining regional security, managing traffic along the busy East Coast Road (ECR), resolving local civil and land disputes, and overseeing coastal law enforcement.

The station features essential administrative facilities to assist the public, including counters for filing First Information Reports (FIRs), public grievance redressal desks, character and background verification services, and emergency police dispatch. Led by an Inspector of Police (Station House Officer) along with Sub-Inspectors and constabulary staff, the station actively monitors public safety across nearby salt pan sectors, fishing hamlets, and tourist transport routes connecting Puducherry and Chennai.