Black Diamond city, Washington demographics
Population: 5,002
Median age: 39.0
Median household income: 118,140
Black Diamond is a city in King County, Washington, United States.
Demographics, population, home values, social and economic characteristics of Black Diamond city, WA.
Population
| 2021 | 5,002 |
| 2020 | 4,703 |
| 2019 | 4,476 |
| 2018 | 4,434 |
| 2017 | 4,378 |
| 2016 | 4,321 |
| 2015 | 4,291 |
| 2014 | 4,257 |
| 2013 | 4,201 |
| 2012 | 4,170 |
| 2011 | 4,121 |
| 2010 | 4,073 |
| 2009 | 4,014 |
Census data for Black Diamond city, Washington
Demographic and housing estimates in Black Diamond city, Washington
| Total population | 5,002 |
| Male | 2,681 |
| Female | 2,321 |
| Total population | 5,002 |
| Under 5 years | 339 |
| 5 to 9 years | 281 |
| 10 to 14 years | 432 |
| 15 to 19 years | 149 |
| 20 to 24 years | 224 |
| 25 to 34 years | 718 |
| 35 to 44 years | 787 |
| 45 to 54 years | 581 |
| 55 to 59 years | 483 |
| 60 to 64 years | 331 |
| 65 to 74 years | 410 |
| 75 to 84 years | 177 |
| 85 years and over | 90 |
| Median age (years) | 39.0 |
| Under 18 years | 1,164 |
| 16 years and over | 3,852 |
| 18 years and over | 3,838 |
| 21 years and over | 3,724 |
| 62 years and over | 867 |
| 65 years and over | 677 |
| Total population | 5,002 |
| One race | 4,653 |
| White | 4,068 |
| Black or African American | 48 |
| American Indian and Alaska Native | 5 |
| Asian | 347 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 185 |
| Two or more races | 349 |
| Citizen, VOTING AGE 18 and over population | 3,582 |
| Male Citizen, VOTING AGE 18 and over population | 1,864 |
| Female Citizen, VOTING AGE 18 and over population | 1,718 |
Social characteristics in Black Diamond city, Washington
| Total households | 1,914 |
| Family households (families) | 1,082 |
| Married-couple family | 103 |
| Male householder, no wife present, family | 386 |
| Female householder, no husband present, family | 211 |
| Nonfamily households | 343 |
| Average household size | 434 |
| Average family size | 2.61 |
Economic characteristics in Black Diamond city, Washington
| Total households | 1,914 |
| Less than $10,000 | 39 |
| $10,000 to $14,999 | 10 |
| $15,000 to $24,999 | 50 |
| $25,000 to $34,999 | 48 |
| $35,000 to $49,999 | 84 |
| $50,000 to $74,999 | 162 |
| $75,000 to $99,999 | 289 |
| $100,000 to $149,999 | 595 |
| $150,000 to $199,999 | 277 |
| $200,000 or more | 360 |
| Median household income (dollars) | 118,140 |
Housing characteristics in Black Diamond city, Washington
| Total housing units | 2,044 |
| Occupied housing units | 1,914 |
| Vacant housing units | 130 |
| Total housing units | 2,044 |
| 1-unit, detached | 1,870 |
| 1-unit, attached | 0 |
| 2 units | 0 |
| 3 or 4 units | 0 |
| 5 to 9 units | 0 |
| 10 to 19 units | 0 |
| 20 or more units | 0 |
| Mobile home | 145 |
| Boat, RV, van, etc. | 29 |
| Total housing units | 2,044 |
| Built 2014 or later | 115 |
| Built 2010 to 2013 | 207 |
| Built 2000 to 2009 | 218 |
| Built 1990 to 1999 | 620 |
| Built 1980 to 1989 | 146 |
| Built 1970 to 1979 | 184 |
| Built 1960 to 1969 | 154 |
| Built 1950 to 1959 | 173 |
| Built 1940 to 1949 | 0 |
| Built 1939 or earlier | 227 |
| Total housing units | 2,044 |
| 1 room | 13 |
| 2 rooms | 35 |
| 3 rooms | 77 |
| 4 rooms | 142 |
| 5 rooms | 343 |
| 6 rooms | 239 |
| 7 rooms | 262 |
| 8 rooms | 207 |
| 9 rooms or more | 726 |
| Median rooms | 7.2 |
| Total housing units | 2,044 |
| No bedroom | 42 |
| 1 bedroom | 38 |
| 2 bedrooms | 265 |
| 3 bedrooms | 770 |
| 4 bedrooms | 719 |
| 5 or more bedrooms | 210 |
| Occupied housing units | 1,914 |
| Owner-occupied | 1,617 |
| Renter-occupied | 297 |
| Average household size of owner-occupied unit | 2.66 |
| Average household size of renter-occupied unit | 2.38 |
| Occupied housing units | 1,914 |
| Moved in 2017 or later | 382 |
| Moved in 2015 to 2016 | 456 |
| Moved in 2010 to 2014 | 225 |
| Moved in 2000 to 2009 | 392 |
| Moved in 1990 to 1999 | 250 |
| Moved in 1989 and earlier | 209 |
| Owner-occupied units | 1,617 |
| Less than $50,000 | 0 |
| $50,000 to $99,999 | 16 |
| $100,000 to $149,999 | 16 |
| $150,000 to $199,999 | 0 |
| $200,000 to $299,999 | 98 |
| $300,000 to $499,999 | 509 |
| $500,000 to $999,999 | 778 |
| $1,000,000 or more | 200 |
| Median (dollars) | 609,200 |
| Owner-occupied units | 1,617 |
| Housing units with a mortgage | 1,216 |
| Housing units without a mortgage | 401 |
| Occupied units paying rent | 293 |
| Less than $500 | 66 |
| $500 to $999 | 73 |
| $1,000 to $1,499 | 32 |
| $1,500 to $1,999 | 40 |
| $2,000 to $2,499 | 63 |
| $2,500 to $2,999 | 19 |
| $3,000 or more | 0 |
| Median (dollars) | 1,059 |
| No rent paid | 4 |
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