Beacon Hill, Cowlitz County, Washington
Beacon Hill is an unincorporated community and census-designated place (CDP) in Cowlitz County, Washington, United States. As of the 2020 census, it had a population of 2,211. During the 2010 census, Beacon Hill was part of the West Side Highway CDP. The CDP is in the western part of the county and is bordered to the south and west by Longview Heights, to the northeast by Lexington, and to the east by the Cowlitz River. State Route 411 runs through the east side of the community, following the Cowlitz. It leads south  to Longview and north  to Castle Rock. Demographics
As of the 2020 census, there were 2,211 people, 796 housing units, and 585 families in the CDP. The ancestry of the CDP was 14.8% English, 13.6% Irish, 6.5% Dutch, 6.1% German, 4.5% West Indian, and 2.5% Norwegian. The median age was 31.1 years old. 17.1% of the population was 65 or older, with 8.4% between 65 and 74, 7.6% between 75 and 84, and 1.1% were 85 or older. 29.1% of the population were under 18, with 7.5% under 5 years, 20.4% between the ages of 5 to 14, and 1.1% between the ages of 15 to 17. The median household income was $89,464, with families having $96,847, and married couples having $112,067. 13.7% of the population were in poverty. References 

Populated places in Cowlitz County, Washington
Census-designated places in Cowlitz County, Washington
Census-designated places in Washington (state)