Allendale West, a neighborhood in Arvada, Colorado, is characterized by low diversity with a strong white majority. As of 2022, the white population comprises 83% of the neighborhood. The median income in 2022 was $78,143. The population of Allendale West has remained stable over the past decade at approximately 2,000 residents.

Over the past decade, Allendale West has consistently been categorized as low diversity, with the white population representing over 80% of residents. Minor demographic shifts have occurred. The Hispanic population decreased from 13% in 2014 to 10% in 2022. The Black population increased from 0% in 2013 to 1% in 2022. The Asian population increased from 0% to 2% over the same period.

The median income in Allendale West has fluctuated over the past decade. It reached a peak of $84,826 in 2015 before declining to $76,986 in 2020. There was a slight increase to $80,416 in 2021, followed by a decrease to $78,143 in 2022. This overall downward trend in median income may correlate with the subtle increases in racial diversity.