The City of Black Diamond had a population of 4,609 as of July 1, 2017. Black Diamond ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.
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.
Beneath the boundary map are tables with Black Diamond population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.
|Daytime Population: Workers||604|
|Daytime Population: Residents||2,377|
|Total Daytime Population (TDP)||2,981|
|Ratio TDP/Total Population1||0.65|
|Population in Households||4,609|
|Population in Familes||3,948|
|Population in Group Qrtrs||0|
|Median Household Income||$104,507|
|Average Household Income||$133,533|
|Per Capita Income||$48,269|
|Total Housing Units||1,804 (100%)|
|Owner Occupied HU||1,451 (80.4%)|
|Renter Occupied HU||237 (13.1%)|
|Vacant Housing Units||116 ( 6.4%)|
|Median Home Value||$405,442|
|Average Home Value||$469,172|
|Average Household Size||2.73|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.34%|
|Per Capita Income||2.14%|
The table below compares Black Diamond to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2017 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||# 197||69th|
|Population Density||# 366||42nd|
|Diversity Index||# 472||25th|
|Median Household Income||# 36||94th|
|Per Capita Income||# 50||92nd|
Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.