Vader is a city in Lewis County, Washington, United States. The population was 629 at the 2020 census.

The community was platted under the name Kraft and became known as Little Falls after the waterfalls of the same name on Olequa Creek. The name was changed to Sopenah by the Northern Pacific Railway after it refused to recognize the moniker because there was already a Little Falls, Minnesota. The townspeople were unsatisfied with the new name and petitioned the Washington State Legislature to change it to Toronto but several communities with that title already existed in the United States, not solving the concern over naming confusion. A dispute then arose which was resolved by a compromise agreement to name the town after a German resident, and Civil War veteran, named Martin Vader. The town name was changed to Vader by the legislature on March 25, 1913. Vader later moved to California or Florida where a myth began that he did not care for the recognition; later reporting stated that he was proud of the honor.

Twice in the 21st century motions have been made to change the community's moniker back to its original name, Little Falls, due to a variety of concerns such as the name of Vader did not encapsulate the meaning of the town, or that the title of Little Falls would be more inviting from a tourism and visitor standpoint. The issue was added to the ballot in 2005 and 2015 to determine voter approval; both attempts failed. In the 2015 vote, 131 residents voted against the change and 73 in favor.

As Little Falls, the town was incorporated on January 12, 1906. During its peak between 1890 and 1920, Vader hosted over 40 businesses, contained two churches, and had a hospital. Businesses included a bowling alley, an opera house, several saloons, and the Vader Moving Picture Theater.

The population may have reached as high as 5,000 residents during the time period. Various disasters and loss of employment led to a decline to the town. In 1914, a clay company burned down and the major sawmill in Vader was sold. A new, but smaller clay production plant began in 1920 but another fire decimated the facility in 1925.

According to the United States Census Bureau, the city has a total area of 0.93 square miles (2.41 km), all of it land.

Historical population

Census	Pop.	Note	%±
1910	631		—
1920	500		−20.8%
1930	465		−7.0%
1940	479		3.0%
1950	426		−11.1%
1960	380		−10.8%
1970	387		1.8%
1980	406		4.9%
1990	414		2.0%
2000	590		42.5%
2010	621		5.3%
2020	629		1.3%
U.S. Decennial Census 2020 Census

As of the 2010 census, there were 621 people, 228 households, and 157 families living in the city. The population density was 667.7 inhabitants per square mile (257.8/km). There were 258 housing units at an average density of 277.4 per square mile (107.1/km). The racial makeup of the city was 87.9% White, 2.3% Native American, 1.0% Asian, 0.2% Pacific Islander, 1.0% from other races, and 7.7% from two or more races. Hispanic or Latino of any race were 4.5% of the population.

There were 228 households, of which 32.9% had children under the age of 18 living with them, 52.2% were married couples living together, 10.1% had a female householder with no husband present, 6.6% had a male householder with no wife present, and 31.1% were non-families. 24.6% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.72 and the average family size was 3.18.

The median age in the city was 41.4 years. 24.2% of residents were under the age of 18; 8.8% were between the ages of 18 and 24; 21.8% were from 25 to 44; 29.2% were from 45 to 64; and 16.1% were 65 years of age or older. The gender makeup of the city was 52.8% male and 47.2% female.

As of the 2000 census, there were 590 people, 208 households, and 151 families living in the city. The population density was 654.4 people per square mile (253.1/km). There were 230 housing units at an average density of 255.1 per square mile (98.7/km). The racial makeup of the city was 93.56% White, 0.34% Native American, 1.86% from other races, and 4.24% from two or more races. Hispanic or Latino of any race were 6.61% of the population. 16.2% were of German, 12.5% American, 10.7% Irish, 9.5% English and 5.3% Swedish ancestry.

There were 208 households, out of which 38.5% had children under the age of 18 living with them, 55.3% were married couples living together, 10.6% had a female householder with no husband present, and 27.4% were non-families. 23.6% of all households were made up of individuals, and 9.1% had someone living alone who was 65 years of age or older. The average household size was 2.84 and the average family size was 3.36.

In the city, the age distribution of the population shows 32.9% under the age of 18, 5.9% from 18 to 24, 26.8% from 25 to 44, 22.2% from 45 to 64, and 12.2% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 97.3 males. For every 100 females age 18 and over, there were 99.0 males.

The median income for a household in the city was $30,750, and the median income for a family was $32,188. Males had a median income of $35,139 versus $16,875 for females. The per capita income for the city was $15,481. About 21.9% of families and 23.7% of the population were below the poverty line, including 28.4% of those under age 18 and 3.1% of those age 65 or over.

Vader has hosted an annual event known as the May Day Festival since 1952 which is held on the first Saturday of May. The celebration includes a maypole dance and a parade. It began through the actions of Lena DeAger, a leader of a local Girl Scout troop, and the first years included scouts parading on decorated bicycles and wagons. Over the years, the festival has incorporated car shows, a cake walk, and the coronation of a May Day Queen, who used to be elected based on the most amount of money collected through donation jars.

The city is home to the Gothic-style Grace Evangelical Church of Vader, a National Register of Historic Places recognized building that is in current use under the United Methodist Church.

A second building within Vader is also listed with the NRHP, the Ben Olsen House. The mansion was built in 1903 to serve the Olsen family who owned the Stillwater Lumber Co. and Mill; it was the first home in the community to have electricity.

Vader is home to McMurphy Park, a 13-acre (5.3 ha) parcel donated by a former resident in 2001. Located north of the main hub of the town, it is bordered by Olequa Creek and the Little Falls of Vader, and a portion of the park is outside the city limits. The grounds were built up to be a park by community efforts, finishing most of the early efforts in 2007. Plans for the site include an amphitheater, ball fields, playgrounds, and camping and picnic amenities. As part of the donation, a large black walnut tree was to be left standing.

J.K. Werden Memorial Park became an official park in Vader in 2005 and is situated near the downtown core. Originally 175 ft × 120 ft (53 m × 37 m) in size, a land purchase approved in late 2015, and paid for by a $10,000 grant, doubled the park area. The parcel received upgrades in 2009 for bathroom and kitchen facilities, a basketball court was built in 2015, and new playground equipment in 2021, similar to Penny Playground in Chehalis. The park is also home to Vader's Old City Jail.

Presidential Elections Results

Year	Republican	Democratic	Third parties
2020	58.52% 175	37.46% 112	4.02% 12

The 2020 election included 8 votes for candidates of the Libertarian Party.

The city council for Vader is composed of five at-large, non-partisan members who, along with the mayor, are elected to serve four-year terms.

The first school in Little Falls-Vader was a schoolhouse constructed near the falls. The one-room school building existed before the build of a second school in 1892. A two-story schoolhouse, for up to eighth grade, was built in 1930.

The grade school in Vader, built in the 1950s, closed in 2007 after a local levy and bond measure failed. The measures were meant to fund maintenance and operations at the school and improve the safety of the campus. Students were transported to a temporary school in Toledo. The Vader school district was absorbed under the oversight of the Castle Rock district but students are allowed to choose to attend schools in more nearby locations.

• Robert Cantwell, novelist and critic
• Herbert Heyes, silent film actor