Belfield is a city located in North Dakota. With a 2020 population of 957, it is the 55th largest city in North Dakota and the 10503rd largest city in the United States. Belfield is currently declining at a rate of -2.15% annually but its population has increased by 19.63% since the most recent census, which recorded a population of 800 in 2010. Belfield reached it's highest population of 1,048 in 2015. Spanning over 1 miles, Belfield has a population density of 901 people per square mile.
The average household income in Belfield is $63,662 with a poverty rate of 5.23%. The median rental costs in recent years comes to $929 per month, and the median house value is $141,900. The median age in Belfield is 33.7 years, 29.7 years for males, and 38.1 years for females. For every 100 females there are 131.6 males.