By the end of the historic period, the Kalapuyan people no longer existed as a distinct cultural-racial entity. A census conducted in 1870 reported only 47 Yamels and 36 Luckiamutes on the reservation in 1910 the Yamels numbered five, the Luckiamutes, eight. For this purpose the Grand Ronde Indian Reservation was opened on June 30, 1857, covering 60,000 acres in northwest Polk and southwest Yamhill counties. On January 4, 1855, a treaty between the various bands of Kalapuyans and Oregon Superintendent of Indian Affairs Joel Palmer was effected, calling for the various bands to remove to a reservation to be established by the government. It is part of the Salem Metropolitan Statistical Area. As of the census of 2010, there were 1,661 people in 658 households residing in Grand Ronde. The name of the community is a variation of the French Grande Ronde or 'Grand Round' which could be about the large round-up of Native American peoples in the area who were settled on what was known as the Grand Ronde Indian Reservation, or possibly referencing the shape of the valley in which the community is located. Historically noted as a village in Polk County, the sphere of influence and community is in both Polk and Yamhill counties. Grand Ronde is a census-designated place (CDP) and unincorporated community in Polk and Yamhill counties, Oregon, United States.