Grafton is a city located in Walsh County North Dakota. With a 2020 population of 4,149, it is the 14th largest city in North Dakota and the 5298th largest city in the United States . Grafton is currently declining at a rate of -0.10% annually and its population has decreased by -3.15% since the most recent census, which recorded a population of 4,284 in 2010. Grafton reached it's highest population of 5,946 in 1970. Spanning over 4 miles, Grafton has a population density of 1,256 people per square mile.
The average household income in Grafton is $76,592 with a poverty rate of 9.01%. The median rental costs in recent years comes to $676 per month, and the median house value is $84,700. The median age in Grafton is 40.5 years, 39.6 years for males, and 41.7 years for females.