Agnes Township is a township in Grand Forks County, North Dakota, United States. It has 72 people and 83 occupied houses, all rural. It has a population density of slightly over two people per square mile.

Historical population

Census	Pop.	Note	%±
1890	284		—
1900	385		35.6%
1910	363		−5.7%
1920	432		19.0%
1930	278		−35.6%
1940	285		2.5%
1950	200		−29.8%
1960	173		−13.5%
1970	144		−16.8%
1980	121		−16.0%
1990	94		−22.3%
2000	83		−11.7%
2010	72		−13.3%
U.S. Decennial Census