Rosburg is a Census-designated place (CDP) in Wahkiakum County, Washington, United States. Rosburg is located on the Grays River near Washington State Route 4, northwest of Cathlamet. Rosburg has a post office with ZIP code 98643.ZIP Code Lookup The CDP includes the communities of Eden and Oneida. As of the 2020 census, Rosburg had a population of 340.

Christian Rosburg, the town's first postmaster, named Rosburg for himself. Demographics

Rosburg first appeared as a census designated place in the 2010 U.S. census.

Racial and ethnic composition +Rosburg CDP, Washington – Racial and ethnic compositionRace / Ethnicity (NH = Non-Hispanic)Pop 2010Pop 2020% 2010% 2020White alone (NH)29829494.01%86.47%Black or African American alone (NH)030.00%0.88%Native American or Alaska Native alone (NH)350.95%1.47%Asian alone (NH)561.58%1.76%Native Hawaiian or Pacific Islander alone (NH)000.00%0.00%Other race alone (NH)000.00%0.00%Mixed race or Multiracial (NH)3180.95%5.29%Hispanic or Latino (any race)8142.52%4.12%Total317340 100.00%100.00%

2020 census As of the 2020 census, there were 340 people, 184 housing units, and 132 families in Rosburg. Rosburg had 298 White people, 3 African Americans, 5 Native Americans, 6 Asians, 8 people who were from some other race, and 20 people from two or more races. 14 people were Hispanic or Latino.

The ancestry of Rosburg was 15.5% English, 14.2% Italian, 13.1% German, 10% Irish, 6.6% Sub-Saharan African, 1.6% French, 1.3% Scottish, and 0.8% Norwegian.

The median age in Rosburg was 34.8 years old. 15% of the population were older than 65, with 12.3% 65 to 74, 2.6% 75 to 84, and 0.0% older than 85.

The median income was $87,500 in Rosburg. 7.9% of the population were in poverty, with 7.4% of people 18 to 64 years being in poverty, and 29.8% of people 65 or older being in poverty.

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