The City of Black Diamond had a population of 4,629 as of July 1, 2018.
The primary coordinate point for Black Diamond is located at latitude 47.3147 and longitude -122.0177 in King County. The formal boundaries for the City of Black Diamond (see map below) encompass a land area of 6.55 sq. miles and a water area of 0.64 sq. miles. King County is in the Pacific time zone (GMT -8). The elevation is 653 feet.
The City of Black Diamond (GNIS ID: 2409855) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Black Diamond is located within Enumclaw Plateau Division of King County.
|Population in Households||4,629|
|Population in Familes||4,000|
|Population in Group Qrtrs||0|
|Median Household Income||$108,516|
|Average Household Income||$139,204|
|Per Capita Income||$49,996|
|Total Housing Units||1,838 (100%)|
|Owner Occupied HU||1,450 (78.9%)|
|Renter Occupied HU||235 (12.8%)|
|Vacant Housing Units||153 ( 8.3%)|
|Median Home Value||$459,704|
|Average Home Value||$540,283|
|Average Household Size||2.75|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.78%|
|Per Capita Income||2.43%|
The table below compares Black Diamond to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
|Total Population||# 198||69th|
|Population Density||# 367||42nd|
|Diversity Index||# 466||26th|
|Median Household Income||# 38||94th|
|Per Capita Income||# 54||92nd|
Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.