Sunset Beach is a coastal town in Brunswick County, North Carolina, United States, situated along the state's southern Atlantic coast near the border with South Carolina. The community occupies a barrier island and adjoining mainland areas along the Atlantic Ocean and the Intracoastal Waterway, creating a landscape defined by wide sandy beaches, tidal waterways, marshes and coastal vegetation. Its relatively small-scale character and extensive shoreline have made it a popular destination for visitors seeking a quieter coastal setting within the larger Brunswick Islands region.

The town's namesake beach stretches along the Atlantic side of the barrier island, with broad sands facing the open ocean. The shoreline changes throughout the day with the tides, weather and changing light, while the relatively unobstructed eastern horizon provides expansive views over the Atlantic. Sunset Beach is particularly well known for its sunsets, with the sun appearing to set over the western horizon across the nearby waterways and mainland rather than directly over the ocean. The combination of open beach, tidal channels and changing coastal skies creates a varied landscape throughout the day.

One of the community's most recognizable landmarks is the Sunset Beach Pier, which extends from the beachfront into the Atlantic Ocean. The pier provides a prominent vantage point over the shoreline and surrounding waters and is used for fishing, sightseeing and enjoying views of the coast. From the pier, visitors can look along the length of the beach, observe changing surf conditions and watch marine and bird activity around the shoreline. The structure also contributes to the traditional seaside character of the community and is an important visual feature of the beachfront.

Sunset Beach is surrounded by a network of coastal waterways and wetlands that form an important part of the area's natural environment. The nearby Intracoastal Waterway separates the barrier island from the mainland and supports boating, fishing and other recreational activities. Tidal creeks, salt marshes and estuarine habitats provide important environments for coastal wildlife, while the surrounding barrier islands help protect portions of the mainland from the direct effects of Atlantic weather and waves.

The area is also known for its relationship with Bird Island, a largely undeveloped barrier island located west of Sunset Beach. Bird Island Coastal Reserve protects an extensive stretch of natural beach, dunes and maritime habitat, preserving a section of the Brunswick County coastline in a relatively undeveloped state. The reserve provides habitat for shorebirds, sea turtles and other coastal wildlife and offers a contrast to the more developed residential and recreational areas of Sunset Beach.

Outdoor recreation is an important part of life in the community, with activities centered on the beach and surrounding waterways. Swimming, surf fishing, beachcombing, kayaking, boating, paddleboarding and wildlife observation are among the activities associated with the area. The coastal environment also provides opportunities to observe seabirds and other wildlife, while the broad beach and gently changing shoreline create a setting suited to walking and photography throughout the year.

The town has a strong seasonal rhythm, with warmer months bringing increased activity along the beach, pier and surrounding waterways. Residential areas, vacation properties and local businesses support visitors during the summer while the community remains a year-round coastal settlement. Weather and ocean conditions can vary considerably through the seasons, from warm, humid summers to cooler periods influenced by coastal storms and winter weather. Tropical systems and hurricanes are also an important consideration for communities along this section of the North Carolina coast.

Sunset Beach forms part of the wider Brunswick Islands coastal region, which includes a series of barrier-island communities, beaches, waterways and protected natural areas extending along southeastern North Carolina. Its combination of a broad Atlantic beach, historic seaside pier, marshland surroundings and nearby undeveloped coastal reserves gives the town a distinctive character within the state's southern coastline. The area offers a view of coastal North Carolina where residential beach life, maritime recreation and protected natural landscapes exist alongside one another.