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Demographics of Whitman County
Affluence Level in Whitman County
A middle-class area roughly in line with national averages across income, home values, education, and employment.
People of Whitman County
Whitman County, Washington, is a predominantly white, college-educated, and politically conservative-leaning rural county anchored by the twin cities of Pullman and Colfax, with a population of 47,042 that is notably younger and more transient than the rest of the state due to Washington State University. The county’s character is defined by a deep agricultural heritage—wheat, barley, and lentils—overlaid with the intellectual and cultural influence of a major land-grant university. Residents describe a place where small-town values, low crime, and a strong work ethic coexist with a surprising degree of global connectivity, driven by WSU’s research mission and a growing international student population.
Settlement & growth (pre-1960)
Before American settlement, the region was the ancestral homeland of the Nimíipuu (Nez Perce) people, who used the Palouse River and its tributaries for fishing and seasonal camps. The first non-Native presence came with the Lewis and Clark Expedition in 1805, followed by fur traders and missionaries in the 1830s and 1840s. The 1855 Treaty of Walla Walla opened the area to white settlement, and the first permanent American settlers arrived in the 1860s and 1870s, drawn by the promise of cheap, fertile land under the Homestead Act and the Northern Pacific Railroad’s land grants.
The dominant early wave was of Northern European stock—primarily German, Scandinavian (Norwegian and Swedish), and English farmers who broke the Palouse’s deep volcanic soil to grow wheat. They founded the county’s enduring small towns: Colfax (the county seat, platted in 1873), Pullman (founded 1881 as “Three Forks” and renamed for railroad magnate George Pullman), Palouse (1880s), Tekoa (1888), and Garfield (1880s). The railroad’s arrival in the 1880s turned these hamlets into grain-shipping hubs, and by 1900 the county’s population had reached roughly 25,000—almost entirely white, native-born, and Protestant.
The single most transformative event was the 1890 establishment of the Washington Agricultural College and School of Science (now Washington State University) in Pullman. The college drew faculty and students from across the Midwest and Northeast, injecting a steady stream of educated, often more progressive outsiders into an otherwise insular farming community. The 1930s Dust Bowl and Great Depression brought a modest influx of Okies and Arkies—displaced farmers from the Southern Plains—who settled in Pullman and worked in the wheat fields or on the railroad. By 1950, the county’s population had grown to 32,469, with Pullman accounting for about a third of that total.
Modern era (post-1965)
The 1965 Hart-Cellar Act had a delayed but significant impact on Whitman County, primarily through Washington State University’s aggressive international recruitment. The most visible change has been the growth of East and Southeast Asian communities, who now make up 5.9% of the county’s population. These students and faculty—largely from China, South Korea, Vietnam, and Taiwan—concentrate heavily in Pullman, particularly in neighborhoods near campus like College Hill and the apartment complexes along Stadium Way. Many stay after graduation, working in WSU’s research labs or in Pullman’s growing tech sector, anchored by Schweitzer Engineering Laboratories (SEL), a major employer founded in 1982.
The Indian subcontinent community (1.5% of the population) arrived later, primarily in the 2000s and 2010s, driven by WSU’s engineering and computer science programs. They are concentrated in Pullman’s newer subdivisions, such as the Bishop Place and Sun Ridge neighborhoods, and in the town of Colfax, where a small but growing number of Indian-origin faculty and medical professionals have settled. The Hispanic population (8.0%) has grown steadily since the 1990s, driven by agricultural labor in the wheat and lentil fields. These families are most concentrated in Pullman and Colfax, with smaller clusters in Palouse and Tekoa. Many are second- and third-generation Washingtonians, working in farm management, food processing, and construction.
Domestic migration has been more modest. The county has not experienced the explosive Sun Belt growth seen in other parts of Washington. Instead, it has seen a slow, steady outflow of young adults after graduation—the “brain drain” common to college towns—offset by an influx of retirees and remote workers drawn by low housing costs and the scenic Palouse landscape. The Black population (1.6%) remains small and is concentrated in Pullman, primarily among WSU faculty, staff, and graduate students.
The future
Whitman County is becoming modestly more diverse, but the change is slow and geographically concentrated. The Hispanic and Asian shares are projected to grow gradually, driven by continued international student enrollment at WSU and by natural increase among settled immigrant families. The Indian subcontinent community is likely to remain small but stable, tied to WSU’s STEM programs. The white share (73.8%) will continue to decline slowly, but the county will remain overwhelmingly white and rural outside of Pullman.
The biggest demographic wildcard is remote work. The Palouse’s low cost of living, fast internet (thanks to WSU’s research network), and scenic beauty are attracting a trickle of coastal telecommuters, particularly to Colfax and Palouse. If this trend accelerates, it could modestly increase the county’s college-educated share (already 50.2%) and inject new political and cultural diversity. However, the county’s aging population—the median age is 28.9, but that is pulled down by students; the non-student population is significantly older—means that natural decrease (more deaths than births) will likely keep overall growth flat or negative over the next decade.
For someone moving in now, Whitman County offers a stable, safe, and deeply rooted community where agricultural traditions and university life coexist. The population is becoming slightly more diverse and slightly more connected to the global economy, but the fundamental character—white, rural, conservative, and wheat-farming—will persist for the foreseeable future. The best bet for a newcomer seeking community is to settle in Pullman for its amenities and diversity, or in Colfax for its quiet, family-oriented small-town life.
* Values derived from national, state, county, city and local statistics and may differ in a specific area. Last updated: 2026-10-25T16:17:29.000Z
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