Gaithersburg, Maryland Population 2021

67,815
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Gaithersburg is a city located in Montgomery County Maryland. With a 2020 population of 67,815, it is the 4th largest city in Maryland (after Baltimore, Frederick, and Rockville) and the 550th largest city in the United States . Gaithersburg is currently declining at a rate of -0.13% annually but its population has increased by 13.15% since the most recent census, which recorded a population of 59,933 in 2010. Gaithersburg reached it's highest population of 68,070 in 2018. Spanning over 10 miles, Gaithersburg has a population density of 6,572 people per square mile.

The average household income in Gaithersburg is $118,318 with a poverty rate of 9.46%. The median rental costs in recent years comes to $1,740 per month, and the median house value is $392,200. The median age in Gaithersburg is 36.5 years, 34.7 years for males, and 38.2 years for females.

Gaithersburg Demographics

According to the most recent ACS, the racial composition of Gaithersburg was:

  • White: 48.76%
  • Asian: 18.87%
  • Black or African American: 17.83%
  • Other race: 9.32%
  • Two or more races: 4.84%
  • Native American: 0.37%
  • Native Hawaiian or Pacific Islander: 0.01%
The current population of Gaithersburg, Maryland is 67,815 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 68,070.The last official US Census in 2010 recorded the population at 59,933.

Gaithersburg, Maryland Population 2021

Population by Race

Race Population Percentage
White33,02848.76%
Asian12,78418.87%
Black or African American12,07917.83%
Some Other Race6,3149.32%
Two or More Races3,2804.84%
American Indian and Alaska Native2520.37%
Native Hawaiian and Other Pacific Islander50.01%
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Gaithersburg Population by Race

Gaithersburg Population Pyramid $2021

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Gaithersburg Median Age

36.5


Total

34.7


Male

38.2


Female

Gaithersburg Adults

There are 52,250 adults, (7,822 of whom are seniors) in Gaithersburg.

Gaithersburg Age Dependency

52.5

Age Dependency Ratio

17.6

Old Age Dependency Ratio

34.9

Child Dependency Ratio

Gaithersburg Sex Ratio

Female

34,772

51.33%

Male

32,970

48.67%

Gaithersburg Population by Age

Gaithersburg Renter vs Owner Occupied by Household Type

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Gaithersburg Household Types

Type Owner Renter
Married59.2%40.8%
Female51.9%48.1%
All51.2%48.8%
Non Family40.8%59.2%
Male38.1%61.9%

51.2%

Rate of Home Ownership

Gaithersburg Households and Families

Type Count Average Size Owned
All24,7992.7251.2
Married12,2473.4959.2
Non Family8,4171.3340.8
Female3,2373.2651.9
Male8983.2338.1

3.33

Average Family Size

2.72

Average Household Size

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Gaithersburg Households by Type

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Education Attained Count Percentage
Less Than 9th Grade3,2797.15%
9th to 12th Grade2,1604.71%
High School Graduate6,69614.59%
Some College6,33613.81%
Associates Degree2,6225.71%
Bachelors Degree12,42527.08%
Graduate Degree12,37026.96%
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Gaithersburg Educational Attainment by Sex (over 25)

Gaithersburg Educational Attainment by Race

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Race Total High School Bachelors
White17,67717,20412,098
Hispanic9,8806,3051,667
Asian9,6819,0186,837
Black7,3886,7333,411
Other Race3,8262,017515
2+ Races1,6961,531835
Native American16410627
Islander55

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 70.62%.

Gaithersburg Educational Attainment by Race

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Name Average Male Female
Overall$51,128$57,639$44,567
Less Than 9th Grade$25,170$31,423$17,100
High School Graduate$29,265$34,712$25,421
Some College$37,288$44,328$32,258
Bachelors Degree$67,470$76,362$62,750
Graduate Degree$92,083$102,425$85,079

$51,128

Average Earnings

$57,639

Average Male

$44,567

Average Female

Gaithersburg Earnings by Educational Attainment

Gaithersburg Language by Age

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Gaithersburg Language

51.18% of Gaithersburg residents speak only English, while 48.82% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 22.79% of the population.

Gaithersburg Language

Gaithersburg Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic16,8002,14312.76%
Black12,0011,56713.06%
White23,1301,2765.52%
Asian12,7761,0878.51%
Other6,2111,06817.20%
Multiple3,28041212.56%

9.46%

Overall Poverty Rate

8.90%

Male Poverty Rate

9.99%

Female Poverty Rate

Poverty in Gaithersburg

The race most likely to be in poverty in Gaithersburg is Other, with 17.20% below the poverty level.

The race least likely to be in poverty in Gaithersburg is White, with 5.52% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.28%. Among those working part-time, it was 11.74%, and for those that did not work, the poverty rate was 17.38%.

Gaithersburg Poverty

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Name Poverty
Less Than 9th Grade22.04%
High School9.94%
Some College8.71%
Bachelors or Greater3.74%

Gaithersburg Poverty Rate by Education

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Rate Poverty
Male Unemployed20.66%
Female Unemployed16.99%
Female Employed5.04%
Male Employed3.95%

Gaithersburg Poverty Rate by Employment Status and Sex

Gaithersburg Income by Household Type

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Name Median Mean
Households$89,763$118,318
Families$103,549$132,556
Married Families$115,993-
Non Families$68,058$85,929
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Income by Household Type

Gaithersburg Marital Status

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Marriage Rates

51.0%

Overall Marriage Rate

54.0%

Male Marriage Rate

48.3%

Female Marriage Rate

Gaithersburg Married by Age and Sex

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Gaithersburg Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Gaithersburg Marital Status by Race

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Gaithersburg Marital Status

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2,407

Number of Veterans

2,032

Male Veterans

375

Female Veterans

War Veterans
Second Gulf War783
First Gulf War638
Vietnam612
Korea144
World War II93

Gaithersburg Veterans by War

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Age Group Veterans
35 to 54777
75+466
65 to 74463
55 to 64371
18 to 34330

Gaithersburg Veterans by Age

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Name Veterans % of Total
White1,5395.92%
Black5406.20%
Hispanic2562.17%
Asian1541.46%
2+ Races803.98%
Other Race721.53%
Native American2212.15%

Gaithersburg Veterans by Race

Gaithersburg Veterans by Education

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4.64%

Veteran Poverty Rate

15.96%

Veteran Disability Rate

Gaithersburg Veterans by Education

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73.7%

Labor Force Participation

69.4%

Employment Rate

5.5%

Unemployment Rate

Gaithersburg Employment by Age

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Gaithersburg Employment by Race

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Gaithersburg Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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26.08%

Born in Gaithersburg

61.87%

Native Born

38.13%

Foreign Born

21.28%

Non Citizen

16.84%

Naturalized

Place of Birth

61.87% of Gaithersburg residents were born in the United States, with 26.08% having been born in Maryland. 21.28% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Gaithersburg Place of Birth

Year Population Growth Annual Growth Rate
202167,815-85-0.13%
202067,900-85-0.13%
201967,985-85-0.12%
201868,070830.12%
201767,9874000.59%
201667,5875060.75%
201567,0815630.85%
201466,5188451.29%
201365,6732,6364.18%
201263,0371,5972.60%
201161,4401,2552.09%
201060,1857,5721.35%
200052,61313,0712.90%
199039,54213,1184.11%
198026,42418,08012.22%
19708,3444,4978.05%
19603,8472,8476.97%
19401,0005001.75%
19005000.00%

Gaithersburg Population by Year