Black Diamond, Washington Population 2020

4,519

Black Diamond is a city located in Washington. With a 2020 population of 4,519, it is the 126th largest city in Washington and the 5044th largest city in the United States. Black Diamond is currently growing at a rate of 0.47% annually and its population has increased by 8.87% since the most recent census, which recorded a population of 4,151 in 2010. Spanning over 7 miles, Black Diamond has a population density of 690 people per square mile.

The average household income in Black Diamond is $108,802 with a poverty rate of 7.87%. The median rental costs in recent years comes to $822 per month, and the median house value is $399,800. The median age in Black Diamond is 41.1 years, 41.4 years for males, and 40.6 years for females. For every 100 females there are 95.7 males.

Black Diamond Demographics

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

  • White: 92.22%
  • Asian: 2.95%
  • Two or more races: 1.89%
  • Other race: 1.62%
  • Native American: 0.81%
  • Black or African American: 0.50%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Black Diamond, Washington is 4,519, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 4,477.The last official US Census in 2010 recorded the population at 4,151.

Black Diamond, Washington Population 2020

Population by Race

Race Population Percentage
White4,08992.22%
Asian1312.95%
Two or More Races841.89%
Some Other Race721.62%
American Indian and Alaska Native360.81%
Black or African American220.50%

Black Diamond Population Pyramid 2020

Black Diamond Median Age

41.1


Total

41.4


Male

40.6


Female

Black Diamond Adults

There are 3,451 adults, (644 of whom are seniors) in Black Diamond.

Black Diamond Age Dependency

58

Age Dependency Ratio

22.9

Old Age Dependency Ratio

35

Child Dependency Ratio

Black Diamond Sex Ratio

Female

2,266

51.11%

Male

2,168

48.89%

Black Diamond Households and Families

Black Diamond Renter vs Owner Occupied by Household Type

Black Diamond Household Types

Type Owner Renter
Married95.6%4.4%
All85%15%
Female77.6%22.4%
Male67.3%32.7%
Non Family65%35%

85.0%

Rate of Home Ownership

Type Count Average Size Owned
All1,7092.5985
Married1,0363.1495.6
Non Family4321.1765
Female1922.7377.6
Male493.167.3

3

Average Family Size

2.59

Average Household Size

5.6%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Black Diamond Education

Education Attained Count Percentage
Less Than 9th Grade922.89%
9th to 12th Grade872.73%
High School Graduate75423.66%
Some College76423.97%
Associates Degree35311.08%
Bachelors Degree72222.65%
Graduate Degree41513.02%

Black Diamond Educational Attainment by Race

Name Total High School Bachelors
White2,8022,7101,017
Hispanic23214537
Asian838359
Other Race6012
Multiple Races515124
Black1212
Native American77

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 71.08%.

Name Average Male Female
Overall$60,899$75,293$47,943
Less Than High School$36,314$36,891$
High School Grad$51,397$56,250$44,426
Some College$53,194$73,500$42,650
Bachelors Degree$72,875$112,750$51,683
Graduate Degree$87,308$117,031$65,000

$60,899

Average Earnings

$75,293

Average Male

$47,943

Average Female

Black Diamond Language

Black Diamond Language by Age

Black Diamond Language

91.12% of Black Diamond residents speak only English, while 8.88% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.78% of the population.

Black Diamond Poverty

Black Diamond Poverty by Race

Name Total In Poverty Poverty Rate
White3,8662646.83%
Hispanic295289.49%
Other722838.89%
Native362569.44%
Asian1312015.27%
Black221254.55%

7.87%

Overall Poverty Rate

9.18%

Male Poverty Rate

6.62%

Female Poverty Rate

Poverty in Black Diamond

The race most likely to be in poverty in Black Diamond is Native, with 69.44% below the poverty level.

The race least likely to be in poverty in Black Diamond is White, with 6.83% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.72%. Among those working part-time, it was 13.32%, and for those that did not work, the poverty rate was 13.38%.

Name Poverty
Less Than High School15.64%
High School11.27%
Bachelors or Greater7.65%
Some College2.78%
Name Poverty
Female Unemployed50.00%
Male Employed6.33%
Female Employed3.40%
Male Unemployed0.00%

Black Diamond Income

Black Diamond Income by Household Type

Name Median Mean
Households$94,650$108,802
Families$110,903$125,481
Married Families$121,818-
Non Families$28,750$47,189

Black Diamond Marital Status

Black Diamond Marital Status

Marriage Rates

60.2%

Overall Marriage Rate

60.5%

Male Marriage Rate

59.9%

Female Marriage Rate

Black Diamond Married by Age and Sex

Black Diamond 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.

Black Diamond Marital Status by Race

Black Diamond Veterans

210

Number of Veterans

210

Male Veterans

Female Veterans

War Veterans
Vietnam85
Second Gulf War39
First Gulf War36
Korea15
World War II
Age Group Veterans
65 to 7466
55 to 6449
35 to 5435
18 to 3432
75+28
Name Veterans % of Total
White1715.30%
Hispanic2711.64%
Other1220.00%
Black12100.00%
2 or More812.31%
Asian78.43%

$Black Diamond Veterans by Education

5.71%

Veteran Poverty Rate

41.43%

Veteran Disability Rate

Black Diamond Employment Status

65.5%

Labor Force Participation

63.3%

Employment Rate

3.4%

Unemployment Rate

Black Diamond Place of Birth

Origin of Non-Citizens

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

Origin of Naturalized Citizens

54.13%

Born in Washington

91.00%

Native Born

9.00%

Foreign Born

2.39%

Non Citizen

Place of Birth

91.00% of Black Diamond residents were born in the United States, with 54.13% having been born in Washington. 2.39% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
20204,519210.47%
20194,498210.47%
20184,47780.18%
20174,469210.47%
20164,448290.66%
20154,419491.12%
20144,370451.04%
20134,325420.98%
20124,283651.54%
20114,218521.25%
20104,1661960.48%
20003,9700.00%