In 2023, Markham, WA had a population of 173 people with a median age of 66 and a median household income of $88,487. Between 2022 and 2023 the population of Markham, WA grew from 132 to 173, a 31.1% increase and its median household income grew from $64,792 to $88,487, a 36.6% increase.
The 5 largest ethnic groups in Markham, WA are White (Non-Hispanic) (71.1%), Two+ (Non-Hispanic) (28.9%), White (Hispanic) (0%), Black or African American (Non-Hispanic) (0%), and Black or African American (Hispanic) (0%).
None of the households in Markham, WA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Markham, WA are U.S. citizens.
In 2023, the median property value in Markham, WA was $439,500, and the homeownership rate was 100%.