Sudden Valley, WA Profile: Facts, Map & Data


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Sudden Valley, Washington - Basic Facts

The Sudden Valley Census Designated Place had a population of 6,250 as of July 1, 2016.

The primary coordinate point for Sudden Valley is located at latitude 48.7201 and longitude -122.3483 in Whatcom County. The formal boundaries for the Sudden Valley Census Designated Place (see map below) encompass a land area of 6.25 sq. miles and a water area of 1.86 sq. miles. Whatcom County is in the Pacific time zone (GMT -8). The elevation is 679 feet.

The Sudden Valley Census Designated Place (GNIS ID: 2410015) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Sudden Valley Census Designated Place is located within Bellingham Division of Whatcom County.

Beneath the boundary map are tables with Sudden Valley population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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Sudden Valley Census Designated Place, WA Boundary Map

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Boundary Maps: Bellingham Division | Whatcom County | Washington Counties

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Sudden Valley, WA Data & Demographics (As of July 1, 2016)


Total Population 6,250
Population in Households 6,249
Population in Familes 5,112
Population in Group Qrtrs 1
Population Density1 999
Diversity Index2 28


Total Households 2,474
Average Household Size 2.53
Family Households 1,774
Average Family Size 3


Total Housing Units 2,918 (100%)
Owner Occupied HU 2,034 (69.7%)
Renter Occupied HU 440 (15.1%)
Vacant Housing Units 444 (15.2%)
Median Home Value $291,410
Average Home Value $370,723


Median Household Income $74,800
Average Household Income $80,122
Per Capita Income $31,722
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.48% -0.03%
Households -0.55% -0.05%
Families -0.6% -0.09%
Median Household Income   1.44%
Per Capita Income   1.81%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Sudden Valley, WA - Peer Comparisons by Rank and Percentile

The table below compares Sudden Valley to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2016 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.

Variable Description Rank Percentile
Total Population # 171 73rd
Population Density1 # 296 53rd
Diversity Index2 # 391 38th
Median Household Income # 139 78th
Per Capita Income # 199 68th

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.