As of the fourth quarter of 2024, the median home value in Griggs County was $135,835. [16]
2020 census
As of the 2020 census, the county had a population of 2,306. Of the residents, 20.8% were under the age of 18 and 30.2% were 65 years of age or older; the median age was 49.2 years. For every 100 females there were 101.9 males, and for every 100 females age 18 and over there were 104.8 males. [17]
The racial makeup of the county was 95.6% White, 0.3% Black or African American, 0.5% American Indian and Alaska Native, 0.3% Asian, 0.3% from some other race, and 2.9% from two or more races. Hispanic or Latino residents of any race comprised 1.0% of the population. [18]
There were 1,015 households in the county, of which 22.0% had children under the age of 18 living with them and 20.1% had a female householder with no spouse or partner present. About 36.6% of all households were made up of individuals and 19.1% had someone living alone who was 65 years of age or older. [17]
There were 1,378 housing units, of which 26.3% were vacant. Among occupied housing units, 77.6% were owner-occupied and 22.4% were renter-occupied. The homeowner vacancy rate was 2.2% and the rental vacancy rate was 16.3%. [17]
2010 census
As of the census of 2010, there were 2,420 people, 1,131 households, and 694 families in the county. The population density was 3.4 inhabitants per square mile (1.3/km2). There were 1,461 housing units at an average density of 2.1 per square mile (0.81/km2). The racial makeup of the county was 98.8% white, 0.3% American Indian, 0.3% black or African American, 0.2% Asian, 0.2% from other races, and 0.2% from two or more races. Those of Hispanic or Latino origin made up 0.4% of the population.
In terms of ancestry, 60.8% were Norwegian, 36.7% were German, 5.9% were English, 5.6% were Swedish, and 1.2% were American.
There were 1,131 households, 20.8% had children under the age of 18 living with them, 53.9% were married couples living together, 4.2% had a female householder with no husband present, 38.6% were non-families, and 36.3% of all households were made up of individuals. The average household size was 2.10 and the average family size was 2.70. The median age was 51.9 years.
The median income for a household in the county was $40,085 and the median income for a family was $51,570. Males had a median income of $33,169 versus $27,038 for females. The per capita income for the county was $24,122. About 9.5% of families and 11.4% of the population were below the poverty line, including 11.4% of those under age 18 and 17.5% of those age 65 or over.
United States
North Dakota 
