Gaithersburg is a city of 69,825 people in Maryland. The foreign-born share is 44%. This is an unusually credentialed place: 52% of adults have a four-year degree. That puts it in the top 5% of US cities for household income. 51% of homes are owner-occupied. There are 6,765 people per square mile.
At a glance
Wealthier
median household income $112,467, above the US median
US median: $82,259
Mid-age
median age 37.8
US median: 38.9
More educated
52% hold a bachelor's degree
US average: 36%
Less affordable
home values up 76%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Gaithersburg
What changed most since 1990
White share67.8% → 29.7%(−38.1 pts)US over the same years: −17.8 pts
Hispanic share9.0% → 30.5%(+21.6 pts)US over the same years: +9.9 pts
Population39,542 → 69,825(+77%)US over the same years: +35%
Gaithersburg's population equals 6.6% of Montgomery County's. Its number of veterans equals 4.3% of the county's. Its number of foreign-born residents equals 8.6% of the county's.
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)46.3%(680)
US avg: 26.4%
Gulf War (1990s)26.5%(389)
US avg: 24.3%
Vietnam era26.3%(387)
US avg: 33.1%
Korean War4.1%(61)
US avg: 4.5%
World War II0.9%(13)
US avg: 1%
Share of the 1,470 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
Gaithersburg, decade by decade
Gaithersburg 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
39,542
$104,749
$353,050
39.6%
63.2
2000
52,613
$109,079
$282,174
46.5%
85.0
2010
59,933
$113,267
$561,186
52.8%
91.1
2020
69,657
$111,320
$501,178
53.5%
94.5
2024
69,825
$112,467
$496,500
52.5%
94.2
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.
