Yamhill is a city in Yamhill County, Oregon, United States. Located in the northern part of the county, it is situated at the intersection of Oregon Route 47 and Oregon Route 240. The population was 794 at the 2000 census. The 2008 estimate is 855 residents. Originally named North Yamhill, it was incorporated under that name by the Oregon Legislative Assembly on February 20, 1891.
According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.0 km²), all of it land.
As of the census of 2000, there were 794 people, 256 households, and 207 families residing in the city. The population density was 1,974.3 people per square mile (766.4/km²). There were 267 housing units at an average density of 663.9 per square mile (257.7/km²). The racial makeup of the city was 96.47% White, 0.25% Native American, 1.39% Asian, 0.38% from other races, and 1.51% from two or more races. Hispanic or Latino of any race were 4.79% of the population.