Markham is a city of 166 people in Washington. At a median age of 72.2, this is an older place than the country as a whole. Four-year degrees are less common here than nationally, at 5% of adults. 100% of homes are owner-occupied. The population has risen by half since 2000, adding 71 people. That puts it in the top 10% of US cities for household income.
At a glance
Wealthier
median household income $90,956, above the US median
US median: $82,259
Older
median age 72.2
US median: 38.9
Less educated
5% hold a bachelor's degree
US average: 36%
Owner-heavy
100% owner-occupied
US average: 65%
Unique to this place
What stands out about Markham
What changed most since 2000
Median age47.9 → 72.2(+24.3 years)US over the same years: +3.7 years
Adults with a bachelor's degree21.6% → 4.8%(−16.7 pts)US over the same years: +11.3 pts
Poverty rate12.3% → 0.0%(−12.3 pts)US over the same years: 0.0 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)0%(0)
US avg: 26.4%
Gulf War (1990s)0%(0)
US avg: 24.3%
Vietnam era88.7%(47)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 53 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Markham, decade by decade
Markham population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
2000
95
$116,131
$89,261
21.6%
15.1
2010
111
$52,148
$233,768
19.6%
8.8
2020
119
–
–
0.0%
36.6
2024
166
$90,956
–
4.8%
47.2
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
