Sammamish, WA Profile: Facts, Map & Data

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Sammamish, Washington - Basic Facts

The City of Sammamish had a population of 51,056 as of July 1, 2016. Sammamish ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.

The primary coordinate point for Sammamish is located at latitude 47.6036 and longitude -122.0429 in King County. The formal boundaries for the City of Sammamish (see map below) encompass a land area of 18.41 sq. miles and a water area of 3.58 sq. miles. King County is in the Pacific time zone (GMT -8). The elevation is 59 feet.

The City of Sammamish (GNIS ID: 2411772) 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 Sammamish is located within Issaquah Plateau Division of King County.

Beneath the boundary map are tables with Sammamish 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

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.

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City of Sammamish, WA Boundary Map



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Boundary Maps: Issaquah Plateau Division | King County | Washington Counties

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

POPULATION

Total Population 51,056
Population in Households 50,938
Population in Familes 46,959
Population in Group Qrtrs 118
Population Density1 2,774
Diversity Index2 49
 

HOUSEHOLDS

Total Households 16,584
Average Household Size 3.07
Family Households 13,969
Average Family Size 3

HOUSING

Total Housing Units 17,151 (100%)
Owner Occupied HU 14,420 (84.1%)
Renter Occupied HU 2,164 (12.6%)
Vacant Housing Units 567 ( 3.3%)
Median Home Value $653,503
Average Home Value $695,791
 

INCOME

Median Household Income $147,913
Average Household Income $180,411
Per Capita Income $59,345
  (Compound Annual Growth Rates)

GROWTH RATES

2010-2015 2015-2020
Population 1.6% 1.69%
Households 1.32% 1.54%
Families 1.11% 1.53%
Median Household Income   0.78%
Per Capita Income   1.04%
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.

Sammamish, WA - Peer Comparisons by Rank and Percentile

The table below compares Sammamish 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 # 23 96th
Population Density1 # 104 84th
Diversity Index2 # 191 70th
Median Household Income # 6 99th
Per Capita Income # 10 99th

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