Mountain Brook, Alabama Population 2021

20,145
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Mountain Brook is a city located in Alabama. With a 2020 population of 20,145, it is the 33rd largest city in Alabama and the 1839th largest city in the United States . Mountain Brook is currently declining at a rate of -0.38% annually and its population has decreased by -1.31% since the most recent census, which recorded a population of 20,413 in 2010. Mountain Brook reached it's highest population of 20,648 in 2014. Spanning over 13 miles, Mountain Brook has a population density of 1,571 people per square mile.

The average household income in Mountain Brook is $238,595 with a poverty rate of 3.04%. The median rental costs in recent years comes to $1,561 per month, and the median house value is $628,800. The median age in Mountain Brook is 40.4 years, 39.5 years for males, and 41.3 years for females.

Mountain Brook Demographics

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

  • White: 96.98%
  • Asian: 1.38%
  • Black or African American: 1.14%
  • Two or more races: 0.47%
  • Native American: 0.02%
  • Native Hawaiian or Pacific Islander: 0.00%
  • Other race: 0.00%
The current population of Mountain Brook, Alabama is 20,145 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 20,373.The last official US Census in 2010 recorded the population at 20,413.

Mountain Brook, Alabama Population 2021

Population by Race

Race Population Percentage
White19,81996.98%
Asian2831.38%
Black or African American2331.14%
Two or More Races960.47%
American Indian and Alaska Native50.02%
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Mountain Brook Population by Race

Mountain Brook Population Pyramid $2021

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Mountain Brook Median Age

40.4


Total

39.5


Male

41.3


Female

Mountain Brook Adults

There are 14,398 adults, (3,708 of whom are seniors) in Mountain Brook.

Mountain Brook Age Dependency

91.2

Age Dependency Ratio

34.7

Old Age Dependency Ratio

56.5

Child Dependency Ratio

Mountain Brook Sex Ratio

Female

10,708

52.40%

Male

9,728

47.60%

Mountain Brook Population by Age

Mountain Brook Renter vs Owner Occupied by Household Type

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Mountain Brook Household Types

Type Owner Renter
Male100%0%
Married93.5%6.5%
All86%14%
Female71.1%28.9%
Non Family65%35%

86.0%

Rate of Home Ownership

Mountain Brook Households and Families

Type Count Average Size Owned
All7,2842.886
Married5,2033.2793.5
Non Family1,5481.1665
Female4772.9271.1
Male562.8100

3.19

Average Family Size

2.8

Average Household Size

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Mountain Brook Households by Type

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Education Attained Count Percentage
Less Than 9th Grade190.14%
9th to 12th Grade420.31%
High School Graduate4493.36%
Some College1,1358.50%
Associates Degree3252.43%
Bachelors Degree6,38447.79%
Graduate Degree5,00537.47%
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Mountain Brook Educational Attainment by Sex (over 25)

Mountain Brook Educational Attainment by Race

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Race Total High School Bachelors
White12,83612,78411,015
Black213204131
Asian162162108
Hispanic105105103
2+ Races383832
Native American55

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

The highest rate of bachelors degrees is among hispanic people with a rate of 98.10%.

Mountain Brook Educational Attainment by Race

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Name Average Male Female
Overall$82,879$122,500$51,294
Less Than 9th Grade$$$
High School Graduate$$38,938$10,139
Some College$38,160$38,560$
Bachelors Degree$81,285$116,755$40,670
Graduate Degree$108,415$160,844$64,149

$82,879

Average Earnings

$122,500

Average Male

$51,294

Average Female

Mountain Brook Earnings by Educational Attainment

Mountain Brook Language by Age

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Mountain Brook Language

96.48% of Mountain Brook residents speak only English, while 3.52% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.19% of the population.

Mountain Brook Language

Mountain Brook Poverty by Race

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Name Total In Poverty Poverty Rate
White19,6016013.07%
Black230187.83%

3.04%

Overall Poverty Rate

2.11%

Male Poverty Rate

3.88%

Female Poverty Rate

Poverty in Mountain Brook

The race most likely to be in poverty in Mountain Brook is Black, with 7.83% below the poverty level.

The race least likely to be in poverty in Mountain Brook is White, with 3.07% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.15%. Among those working part-time, it was 2.79%, and for those that did not work, the poverty rate was 6.54%.

Mountain Brook Poverty

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Name Poverty
Less Than 9th Grade40.00%
Some College9.88%
High School9.15%
Bachelors or Greater1.12%

Mountain Brook Poverty Rate by Education

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Rate Poverty
Female Unemployed42.86%
Male Unemployed15.44%
Female Employed0.71%
Male Employed0.36%

Mountain Brook Poverty Rate by Employment Status and Sex

Mountain Brook Income by Household Type

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Name Median Mean
Households$152,355$238,595
Families$191,089$272,471
Married Families$205,347-
Non Families$83,164$105,078
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Income by Household Type

Mountain Brook Marital Status

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Marriage Rates

69.3%

Overall Marriage Rate

75.0%

Male Marriage Rate

64.4%

Female Marriage Rate

Mountain Brook Married by Age and Sex

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Mountain Brook Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Mountain Brook Marital Status by Race

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Mountain Brook Marital Status

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685

Number of Veterans

669

Male Veterans

16

Female Veterans

War Veterans
Vietnam261
World War II88
First Gulf War64
Korea53
Second Gulf War41

Mountain Brook Veterans by War

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Age Group Veterans
75+298
65 to 74222
35 to 54101
55 to 6448
18 to 3416

Mountain Brook Veterans by Age

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Name Veterans % of Total
White6804.87%
Native American5100.00%

Mountain Brook Veterans by Race

Mountain Brook Veterans by Education

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0.00%

Veteran Poverty Rate

33.28%

Veteran Disability Rate

Mountain Brook Veterans by Education

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60.5%

Labor Force Participation

59.5%

Employment Rate

1.7%

Unemployment Rate

Mountain Brook Employment by Age

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Mountain Brook Employment by Race

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Mountain Brook 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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64.10%

Born in Mountain Brook

97.48%

Native Born

2.52%

Foreign Born

0.96%

Non Citizen

1.56%

Naturalized

Place of Birth

97.48% of Mountain Brook residents were born in the United States, with 64.10% having been born in Alabama. 0.96% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Mountain Brook Place of Birth

Year Population Growth Annual Growth Rate
202120,145-76-0.38%
202020,221-76-0.37%
201920,297-76-0.37%
201820,373-57-0.28%
201720,430-87-0.42%
201620,517-90-0.44%
201520,607-41-0.20%
201420,6483491.72%
201320,299-57-0.28%
201220,356-72-0.35%
201120,428-13-0.06%
201020,441-163-0.08%
200020,6047940.39%
199019,810920.05%
198019,7182440.12%
197019,4746,7944.38%
196012,6804,3214.25%
19508,3590.00%

Mountain Brook Population by Year