Mayo is home to 8,694 people in Maryland. Since 2000 the city has more than doubled, up 5,541 people. 91% of homes are owner-occupied. The median household earns $155,300, about 89% above the national median. Households here earn about 50% more than in Maryland as a whole. Few US cities rank higher on income.
At a glance
Wealthier
median household income $155,300, above the US median
US median: $82,259
Mid-age
median age 40.4
US median: 38.9
More educated
44% hold a bachelor's degree
US average: 36%
Less affordable
home values up 67%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Mayo
What changed most since 1990
Population2,495 → 8,694(+248%)US over the same years: +35%
White share93.9% → 90.8%(−3.1 pts)US over the same years: −17.8 pts
Adults with a bachelor's degree19.5% → 44.0%(+24.5 pts)US over the same years: +15.3 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)25.4%(121)
US avg: 26.4%
Gulf War (1990s)49.8%(237)
US avg: 24.3%
Vietnam era12.4%(59)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 476 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
Mayo, decade by decade
Mayo 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
1990
2,495
$116,231
$350,170
19.5%
14.5
2000
3,153
$129,172
$361,234
25.5%
11.7
2010
8,298
$124,175
$627,217
35.0%
19.0
2020
8,832
$149,614
$554,508
38.3%
31.0
2024
8,694
$155,300
$604,900
44.0%
21.6
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.
