Race

City of Gaithersburg Census 2000 Census 2010 Census 2020
White 30,625
58.2%		 30,469
50.8%		 24,271
34.8%
Black / African American 7,680
14.6%		 9,752
16.3%		 11,533
16.6%
American Indian / Alaska Native 188
0.4%		 272
0.5%		 644
0.9%
Asian 7,241
13.8%		 10,145
16.9%		 13,305
19.1%
Native Hawaiian / Pacific Islander 33
0.1%		 34
0.1%		 83
0.1%
Other Race 4,535
8.6%		 6,404
10.7%		 11,906
17.1%
Multiple Races 2,311
4.4%		 2,857
4.8%		 7,915
11.4%
Total Population 52,613 59,933 69,657

Ethnicity

City of Gaithersburg Census 2000 Census 2010 Census 2020
Hispanic / Latine*
of any Race		 10,398
19.8%		 14,499
24.2%		 19,834
28.5%
White,
Not Hispanic / Latine		 25,818
49.1%		 23,961
40%		 21,970
31.5%
Black / African American,
Not Hispanic / Latine		 7,457
14.2%		 9,307
15.5%		 11,193
16.1%
American Indian / Alaska Native,
Not Hispanic / Latine		 131
0.2%		 129
0.2%		 108
0.2%
Asian,
Not Hispanic / Latine		 7,205
13.7%		 10,099
16.9%		 13,202
19.0%
Native Hawaiian / Pacific Islander,
Not Hispanic / Latine		 33
0.1%		 28
0%		 62
0.1%
Other Race,
Not Hispanic / Latine		 170
0.3%		 227
0.4%		 623
0.9%
Multiple Races, Not Hispanic / Latine 1,401
2.7%		 1,683
2.8%		 2,665
3.8%

Gender & Age

City of Gaithersburg Census 2000 Census 2010 Census 2020
Male 25,647
48.7%		 29,145
48.6%		 33,509
48.1%
Female 26,966
51.3%		 30,788
51.4%		 36,148
51.9%
Under 5 years 4,312
8.2%		 4,962
8.3%		 4,540
6.5%
5 to 17 years 8,852
16.8%		 9,529
15.9%		 11,728
16.8%
18 years old & older 39,449
75%		 45,442
75.8%		 53,389
76.6%
18 to 34 years 14,671
27.9%		 15,410
25.7%		 16,533
23.7%
35 to 64 years 20,438
38.8%		 24,349
40.6%		 27,731
39.8%
65 years & over 4,340
8.2%		 5,683
9.5%		 9,125
13.1%
Median Age 33.6 35.1 36.7
Source: Decennial Census

* Latine is an inclusive, non-Anglicized, gender-neutral term.