Black Diamond, Washington Population 2021

5,467
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Black Diamond is a city located in Washington. With a 2020 population of 5,467, it is the 120th largest city in Washington and the 4527th largest city in the United States. Black Diamond is currently growing at a rate of 6.69% annually and its population has increased by 31.70% since the most recent census, which recorded a population of 4,151 in 2010. Black Diamond reached it's highest population of 5,467 in 2021. Spanning over 7 miles, Black Diamond has a population density of 835 people per square mile.

The average household income in Black Diamond is $124,201 with a poverty rate of 4.94%. The median rental costs in recent years comes to $1,065 per month, and the median house value is $413,100. The median age in Black Diamond is 42 years, 41.5 years for males, and 42.2 years for females. For every 100 females there are 97.5 males.

Black Diamond Demographics

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

  • White: 92.56%
  • Asian: 3.42%
  • Two or more races: 2.10%
  • Other race: 1.09%
  • Black or African American: 0.63%
  • Native American: 0.20%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Black Diamond, Washington is 5,467, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 4,438.The last official US Census in 2010 recorded the population at 4,151.

Black Diamond, Washington Population 2021

Population by Race

Race Population Percentage
White4,14392.56%
Asian1533.42%
Two or More Races942.10%
Some Other Race491.09%
Black or African American280.63%
American Indian and Alaska Native90.20%
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Black Diamond Population by Race

Black Diamond Population Pyramid 2021

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Black Diamond Median Age

42


Total

41.5


Male

42.2


Female

Black Diamond Adults

There are 3,580 adults, (691 of whom are seniors) in Black Diamond.

Black Diamond Age Dependency

54.9

Age Dependency Ratio

23.9

Old Age Dependency Ratio

31

Child Dependency Ratio

Black Diamond Sex Ratio

Female

2,266

50.63%

Male

2,210

49.37%

Black Diamond Population by Age

Black Diamond Renter vs Owner Occupied by Household Type

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Black Diamond Household Types

Type Owner Renter
Married94.4%5.6%
All84.5%15.5%
Male80%20%
Female78.2%21.8%
Non Family64.8%35.2%

84.5%

Rate of Home Ownership

Black Diamond Households and Families

Type Count Average Size Owned
All1,7592.5484.5
Married1,0503.0894.4
Non Family4521.1564.8
Female1972.7278.2
Male603.0880

2.94

Average Family Size

2.54

Average Household Size

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Black Diamond Households by Type

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Education Attained Count Percentage
Less Than 9th Grade862.62%
9th to 12th Grade541.64%
High School Graduate60218.33%
Some College76123.17%
Associates Degree41212.54%
Bachelors Degree91527.85%
Graduate Degree45513.85%
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Black Diamond Educational Attainment by Sex (over 25)

Black Diamond Educational Attainment by Race

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Name Total High School Bachelors
White2,8662,8021,230
Hispanic24216639
Asian999972
Multiple Races636329
Other Race4913
Black1515

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

The highest rate of bachelors degrees is among asian people with a rate of 72.73%.

Black Diamond Educational Attainment by Race

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Name Average Male Female
Overall$62,212$79,976$50,844
Less Than High School$$$
High School Grad$60,530$54,792$
Some College$51,735$64,728$44,922
Bachelors Degree$85,833$117,381$52,857
Graduate Degree$91,473$118,417$68,889

$62,212

Average Earnings

$79,976

Average Male

$50,844

Average Female

Black Diamond Earnings by Educational Attainment

Black Diamond Language by Age

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Black Diamond Language

91.35% of Black Diamond residents speak only English, while 8.65% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.54% of the population.

Black Diamond Language

Black Diamond Poverty by Race

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Name Total In Poverty Poverty Rate
White3,8861443.71%
Hispanic3063611.76%
Other493673.47%
Asian1532616.99%
Black281553.57%

4.94%

Overall Poverty Rate

5.20%

Male Poverty Rate

4.68%

Female Poverty Rate

Poverty in Black Diamond

The race most likely to be in poverty in Black Diamond is Other, with 73.47% below the poverty level.

The race least likely to be in poverty in Black Diamond is White, with 3.71% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.53%. Among those working part-time, it was 11.04%, and for those that did not work, the poverty rate was 9.65%.

Black Diamond Poverty

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Name Poverty
Less Than High School25.71%
High School8.97%
Bachelors or Greater4.38%
Some College2.39%

Black Diamond Poverty Rate by Education

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Name Poverty
Female Unemployed58.82%
Male Employed4.95%
Female Employed3.63%
Male Unemployed0.00%

Black Diamond Poverty Rate by Employment Status and Sex

Black Diamond Income by Household Type

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Name Median Mean
Households$108,490$124,201
Families$126,250$143,181
Married Families$137,024-
Non Families$30,854$54,376
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Income by Household Type

Black Diamond Marital Status

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Marriage Rates

62.0%

Overall Marriage Rate

62.6%

Male Marriage Rate

61.4%

Female Marriage Rate

Black Diamond Married by Age and Sex

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Black Diamond 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.

Black Diamond Marital Status by Race

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Black Diamond Marital Status

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289

Number of Veterans

289

Male Veterans

Female Veterans

War Veterans
Vietnam137
Second Gulf War47
First Gulf War32
World War II12
Korea10

Black Diamond Veterans by War

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Age Group Veterans
65 to 74116
55 to 6464
18 to 3447
75+34
35 to 5428

Black Diamond Veterans by Age

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Name Veterans % of Total
White2447.31%
Hispanic2911.98%
Black15100.00%
Other1326.53%
2 or More1012.99%
Asian77.07%

Black Diamond Veterans by Race

Black Diamond Veterans by Education

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5.19%

Veteran Poverty Rate

43.94%

Veteran Disability Rate

Black Diamond Veterans by Education

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70.2%

Labor Force Participation

68.2%

Employment Rate

2.8%

Unemployment Rate

Black Diamond Employment by Age

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Black Diamond Employment by Race

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Black Diamond 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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46.22%

Born in Washington

90.50%

Native Born

9.50%

Foreign Born

1.94%

Non Citizen

7.55%

Naturalized

Place of Birth

90.50% of Black Diamond residents were born in the United States, with 46.22% having been born in Washington. 1.94% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Black Diamond Place of Birth

Year Population Growth Annual Growth Rate
20215,4673436.69%
20205,1243437.17%
20194,7813437.73%
20184,438-2-0.05%
20174,440190.43%
20164,421290.66%
20154,392471.08%
20144,345461.07%
20134,299380.89%
20124,261661.57%
20114,195481.16%
20104,1471770.44%
20003,9700.00%

Black Diamond Population by Year