In 2019, Arthur County, NE had a population of 427 people with a median age of 45.5 and a median household income of $42,813. Between 2018 and 2019 the population of Arthur County, NE grew from 418 to 427, a 2.15% increase and its median household income declined from $43,854 to $42,813, a −2.37% decrease.
The 5 largest ethnic groups in Arthur County, NE are White (Non-Hispanic) (95.8%), Two+ (Non-Hispanic) (3.04%), White (Hispanic) (0.468%), Other (Non-Hispanic) (0.468%), and American Indian & Alaska Native (Non-Hispanic) (0.234%). 0% of the households in Arthur County, NE speak a non-English language at home as their primary language, and 99.5% of the residents in Arthur County, NE are U.S. citizens.
In 2019, the median property value in Arthur County, NE was $111,300, and the homeownership rate was 66.5%. Most people in Arthur County, NE drove alone to work, and the average commute time was 18.4 minutes. The average car ownership in Arthur County, NE was 3 cars per household.