Fairfield Bay is a city in Cleburne and Van Buren counties in the northern part of the U.S. state of Arkansas. The population was 2,338 at the 2010 census. The population in its portion in Van Buren County, which accounts for the bulk of the city limits, made the city the most populous in Van Buren County as of the 2000 census, but with a slight decline in population, lost the distinction to Clinton as of 2010.
Fairfield Bay is located in eastern Van Buren County at 35°36′07″N 92°15′51″W / 35.602031°N 92.264164°W / 35.602031; -92.264164, extending eastward into Cleburne County. It is located on hills overlooking the northern shore of Greers Ferry Lake, a reservoir on the Little Red River, a tributary of the White River which flows to the Mississippi.
According to the United States Census Bureau, the city has a total area of 15.3 square miles (39.7 km), of which 15.3 square miles (39.5 km) is land and 0.04 square miles (0.1 km), or 0.36%, is water.
As of the census of 2000, there were 2,460 people, 1,231 households, and 833 families residing in the city. The population density was 162.1 people per square mile (62.6/km²). There were 1,976 housing units at an average density of 130.2 per square mile (50.3/km²). The racial makeup of the city was 98.41% White, 0.53% Black or African American, 0.16% Native American, 0.24% Asian, and 0.65% from two or more races. 0.53% of the population were Hispanic or Latino of any race.
There were 1,231 households out of which 8.9% had children under the age of 18 living with them, 62.0% were married couples living together, 4.3% had a female householder with no husband present, and 32.3% were non-families. 29.7% of all households were made up of individuals and 21.9% had someone living alone who was 65 years of age or older. The average household size was 1.91 and the average family size was 2.29.
In the city, the population was spread out with 9.3% under the age of 18, 2.6% from 18 to 24, 10.2% from 25 to 44, 25.3% from 45 to 64, and 52.6% who were 65 years of age or older. The median age was 66 years. For every 100 females, there were 82.4 males. For every 100 females age 18 and over, there were 82.0 males.
The median income for a household in the city was $35,089, and the median income for a family was $42,419. Males had a median income of $30,337 versus $21,625 for females. The per capita income for the city was $24,900. About 4.8% of families and 7.1% of the population were below the poverty line, including 20.1% of those under age 18 and 3.4% of those age 65 or over.