Lafayette is a city in Yamhill County, Oregon, United States on the Yamhill River and Oregon Route 99W. It was founded in 1846 and incorporated in 1878. The population was 3,742 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 0.90 square miles (2.33 km), all of it land.
It is located on State Highway 99W between McMinnville and Dundee.
As of the census of 2010, there were 3,742 people, 1,209 households, and 938 families residing in the city. The population density was 4,157.8 inhabitants per square mile (1,605.3/km). There were 1,315 housing units at an average density of 1,461.1 per square mile (564.1/km). The racial makeup of the city was 84.6% White, 0.3% African American, 0.9% Native American, 0.7% Asian, 9.8% from other races, and 3.6% from two or more races. Hispanic or Latino of any race were 22.0% of the population.
There were 1,209 households of which 47.5% had children under the age of 18 living with them, 60.2% were married couples living together, 11.0% had a female householder with no husband present, 6.4% had a male householder with no wife present, and 22.4% were non-families. 15.6% of all households were made up of individuals and 4.5% had someone living alone who was 65 years of age or older. The average household size was 3.10 and the average family size was 3.45.
The median age in the city was 33.2 years. 32.1% of residents were under the age of 18; 6.2% were between the ages of 18 and 24; 30.9% were from 25 to 44; 22.6% were from 45 to 64; and 8% were 65 years of age or older. The gender makeup of the city was 51.3% male and 48.7% female.
In the census of 2000, there were 2,586 people, 841 households, and 656 families residing in the city. The population density was 2,869.9 people per square mile (1,109.4/km²). There were 888 housing units at an average density of 985.5 per square mile (381.0/km²). The racial makeup of the city was 85.89% White, 0.43% African American, 1.62% Native American, 0.62% Asian, 0.23% Pacific Islander, 8.35% from other races, and 2.86% from two or more races. Hispanic or Latino of any race were 20.22% of the population.
There were 841 households out of which 44.0% had children under the age of 18 living with them, 62.3% were married couples living together, 11.3% had a female householder with no husband present, and 21.9% were non-families. 16.6% of all households were made up of individuals and 4.8% had someone living alone who was 65 years of age or older. The average household size was 3.07 and the average family size was 3.43.
In the city, the population was spread out with 32.7% under the age of 18, 8.8% from 18 to 24, 33.4% from 25 to 44, 17.3% from 45 to 64, and 7.8% who were 65 years of age or older. The median age was 31 years. For every 100 females, there were 101.7 males. For every 100 females age 18 and over, there were 101.2 males.
The median income for a household in the city was $38,611, and the median income for a family was $41,283. Males had a median income of $31,351 versus $22,466 for females. The per capita income for the city was $14,542. About 10.7% of families and 13.0% of the population were below the poverty line, including 17.1% of those under age 18 and 6.8% of those age 65 or over.