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is a census-designated place (CDP) in Matanuska-Susitna Borough, Alaska, United States. It is part of the Anchorage, Alaska Metropolitan Statistical Area and is known as the southern gateway to Denali State Park. According to the 2000 census the population was 423.
Trapper Creek is a populated community located in Matanuska-Susitna Borough at latitude 62.317 and longitude -150.231. The elevation is 351 feet. It is on mile 114.5 on Park's Highway, just south of Denali State Park. Trapper Creek is found at the intersection of Petersville Road and is spread out along the Parks Highway 15 miles north of Talkeetna Junction. Also, Trapper Creek extends down the Petersville Road, which leads to mining,prospecting, and recreation country in the foothills of the Alaska Range.
According to the United States Census Bureau, the CDP has a total area of 370.8 square miles (960.3 km²), of which, 364.9 square miles (945.1 km²) of it is land and 5.8 square miles (15.2 km²) of it (1.58%) is water.