Dillingham Census Area is a census area located in the state of Alaska, United States. As of the 2000 census, the population was 4,922. It is part of the unorganized borough and therefore has no borough seat. Its largest community by far is the city of Dillingham, on a small arm of Bristol Bay on the Bering Sea.

There were 1,529 households out of which 45.30% had children under the age of 18 living with them, 51.10% were married couples living together, 15.00% had a female householder with no husband present, and 27.70% were non-families. 23.30% of all households were made up of individuals and 3.60% had someone living alone who was 65 years of age or older. The average household size was 3.20 and the average family size was 3.84.
In the census area the population was spread out with 38.10% under the age of 18, 7.70% from 18 to 24, 28.90% from 25 to 44, 19.50% from 45 to 64, and 5.70% who were 65 years of age or older. The median age was 29 years. For every 100 females there were 109.00 males. For every 100 females age 18 and over, there were 108.80 males. The per capita income is estimated at 23,500 U.S. dollars per year.