Sammamish, Washington

Not to be confused with West Lake Sammamish, Bellevue, Washington.

This article is about the city. For other uses, see Sammamish (disambiguation).

City in Washington, United States

Sammamish

City

Big Rock Park North in Sammamish

Seal

Location of Sammamish in Washington

Coordinates: 47°36′32″N 122°2′32″W﻿ / ﻿47.60889°N 122.04222°W﻿ / 47.60889; -122.04222
Country| United States
State| Washington
County| King
Incorporated| August 31, 1999
Government

• Type| Council–manager[1]
• Mayor| Kali Clark[2]
Area

[3]

• Total| 24.03 sq mi (62.25 km2)
• Land| 20.42 sq mi (52.90 km2)
• Water| 3.61 sq mi (9.35 km2)
Elevation

| 540 ft (165 m)
Population

(2020)[4]

• Total| 67,455
• Estimate

(2022)[5]

| 65,845
• Rank| US: 582nd
WA: 19th
• Density| 2,800/sq mi (1,100/km2)
Time zone| UTC-8 (Pacific (PST))
• Summer (DST)| UTC-7 (PDT)
ZIP codes|

98074-98075, 98029

Area code| 425
FIPS code| 53-61115
GNIS feature ID| 1508071[6]
Website| sammamish.us

Sammamish (/səˈmæmɪʃ/ sə-MAM-ish) is a city in King County, Washington, United States. The population was 67,455 at the 2020 census.[4] Located on a plateau, the city is bordered by Lake Sammamish to the west and the Snoqualmie Valley to the east. Sammamish is situated 20 miles east of Seattle, is a member of the Eastside, and is a part of the Seattle metropolitan area. Sammamish is an affluent community and has been ranked as one of the wealthiest cities in Washington.[7]

## Etymology[edit]

Sammamish is a Snoqualmie name formed from the words "squax" (Sammamish Lake) and "abs", a suffix used to describe people of a specific area. The name is roughly translated to "people of Lake Sammamish" in the Snoqualmie language.[8]

## History[edit]

Lake Sammamish and the adjacent plateau has been Duwamish, Suquamish, Snoqualmie, Sammamish, and Snohomish territory since the last Pleistocene glaciation, before contact with European people.[8] They lived in longhouse villages in seven places on and near the coast of Sammamish Lake. Two of them were in present-day Sammamish.[9]

The Sammamish Plateau was part of unincorporated King County for most of its recorded history. The first settlers arrived in the 1870s[8] and established a trio of resorts by the 1930s. The plateau remained a mostly rural area until suburban homes, shopping centers, and schools were built in the 1970s and 1980s. However, from approximately 1900 through the Great Depression, there was a tiny hamlet in Inglewood community (at today's Weber Point) of ~50 people who called the area "Sammamish", and later, in the 1960s, there was a suburban community and school at what is now Sunny Hills.[8] A vote in 1991 to join neighboring Issaquah failed, as did a vote on incorporation the following year. A renewed movement to become a city, born of frustration with development policies set by the county government, met with voter approval in 1998. Sammamish was officially incorporated on August 31, 1999.[10] The city annexed Klahanie on January 1, 2016.[11]

## Geography[edit]

According to the United States Census Bureau, the city has a total area of 18.47 square miles (47.84 km2), of which 18.22 square miles (47.19 km2) are land and 0.25 square miles (0.65 km2) are water.[12]

The city is situated on the shores and hilly terrain east of Lake Sammamish. It is bordered to the south by Issaquah, to the northwest by Redmond, and to the west across Lake Sammamish by Bellevue. Beaver Lake and Pine Lake are the two biggest lakes in Sammamish. Yellow Lake is a major lake in Klahanie.

Sammamish is in and near the Issaquah Alps, a westward extension of the Cascade foothills.[13]

Sammamish in late April, from the south.

### Climate[edit]

The city has a mild marine west coast or oceanic climate (closely bordering on a Csb), or a typical warm-summer mediterranean climate.

Summers are warm and dry, and winters are cold with low temperatures near freezing and some snow. Extremes range from −8 °F (−22 °C) in February 1950, to 113 °F (45 °C) in June 2021. The average high in the hottest month, August, is 78 °F (26 °C), and the average low in the coldest month, January, is 29 °F (−2 °C).[14] The most common form of below-freezing weather occurs during a high-pressure system, where cold, clear nights and sunny but chilly days ensue.

Climate data for Sammamish, Washington (1993–2023)

Month  | Jan  | Feb  | Mar  | Apr  | May  | Jun  | Jul  | Aug  | Sep  | Oct  | Nov  | Dec  | Year
Record high °F (°C)  | 67
(19)  | 75
(24)  | 79
(26)  | 90
(32)  | 97
(36)  | 113
(45)  | 104
(40)  | 102
(39)  | 98
(37)  | 95
(35)  | 75
(24)  | 67
(19)  | 113
(45)
Mean maximum °F (°C)  | 56
(13)  | 60
(16)  | 68
(20)  | 78
(26)  | 85
(29)  | 88
(31)  | 91
(33)  | 90
(32)  | 88
(31)  | 79
(26)  | 65
(18)  | 54
(12)  | 91
(33)
Mean daily maximum °F (°C)  | 42
(6)  | 45
(7)  | 54
(12)  | 58
(14)  | 65
(18)  | 70
(21)  | 77
(25)  | 78
(26)  | 71
(22)  | 60
(16)  | 51
(11)  | 42
(6)  | 59
(15)
Daily mean °F (°C)  | 35
(2)  | 38
(3)  | 45
(7)  | 49
(9)  | 56
(13)  | 61
(16)  | 66
(19)  | 66
(19)  | 60
(16)  | 51
(11)  | 44
(7)  | 36
(2)  | 51
(10)
Mean daily minimum °F (°C)  | 29
(−2)  | 32
(0)  | 37
(3)  | 40
(4)  | 46
(8)  | 51
(11)  | 54
(12)  | 53
(12)  | 48
(9)  | 43
(6)  | 38
(3)  | 30
(−1)  | 42
(5)
Mean minimum °F (°C)  | 20
(−7)  | 23
(−5)  | 30
(−1)  | 35
(2)  | 40
(4)  | 45
(7)  | 50
(10)  | 50
(10)  | 42
(6)  | 36
(2)  | 29
(−2)  | 20
(−7)  | 20
(−7)
Record low °F (°C)  | −6
(−21)  | −8
(−22)  | 8
(−13)  | 24
(−4)  | 26
(−3)  | 31
(−1)  | 36
(2)  | 35
(2)  | 30
(−1)  | 23
(−5)  | 2
(−17)  | −4
(−20)  | −8
(−22)
Average precipitation inches (mm)  | 8.85
(225)  | 5.61
(142)  | 6.26
(159)  | 4.81
(122)  | 4.01
(102)  | 2.94
(75)  | 1.37
(35)  | 1.29
(33)  | 2.85
(72)  | 5.69
(145)  | 10.12
(257)  | 8.45
(215)  | 62.25
(1,582)
Average snowfall inches (cm)  | 3.3
(8.4)  | 3.7
(9.4)  | 1.2
(3.0)  | 0
(0)  | 0
(0)  | 0
(0)  | 0
(0)  | 0
(0)  | 0
(0)  | 0
(0)  | 1.6
(4.1)  | 3.3
(8.4)  | 13.1
(33)
Average rainy days  | 19.7  | 15.7  | 19.1  | 16.8  | 14.6  | 11.4  | 6.7  | 5.7  | 9.3  | 15.1  | 20.4  | 19.1  | 173.6
Average snowy days  | 6  | 4  | 2  | 1  | 0  | 0  | 0  | 0  | 0  | 0  | 2  | 6  | 21
Average relative humidity (%)  | 85  | 85  | 83  | 80  | 75  | 74  | 70  | 71  | 75  | 79  | 84  | 85  | 79
Average dew point °F (°C)  | 35.3
(1.8)  | 31.7
(−0.2)  | 32.8
(0.4)  | 38.7
(3.7)  | 46.5
(8.1)  | 47.7
(8.7)  | 50.6
(10.3)  | 53.5
(11.9)  | 49.8
(9.9)  | 46.1
(7.8)  | 45.9
(7.7)  | 33.8
(1.0)  | 42.7
(5.9)
Mean monthly sunshine hours | 79  | 111  | 192  | 230  | 296  | 303  | 357  | 329  | 251  | 182  | 110  | 88  | 2,528
Mean daily sunshine hours | 4.2  | 4.4  | 6.1  | 7.9  | 9  | 9.3  | 10.5  | 10.7  | 9.2  | 5.5  | 4.5  | 4.2  | 7.1
Mean daily daylight hours | 8.9  | 10.3  | 11.9  | 13.6  | 15.1  | 16.0  | 15.6  | 14.3  | 12.6  | 10.9  | 9.3  | 8.5  | 12.3
Percent possible sunshine | 28.7  | 38.5  | 52.0  | 56.4  | 63.2  | 63.1  | 73.8  | 74.2  | 66.4  | 53.9  | 39.4  | 33.4  | 53.6
Average ultraviolet index | 0  | 1  | 2  | 4  | 5  | 6  | 7  | 6  | 5  | 2  | 0  | 0  | 3
Source: [14]

### Climate change[edit]

Sammamish is predicted to warm by 3-12 F (2-7 C) before 2100 regardless of future emissions, and around 2.5 F during the next few decades due to climate change. Warming by any significant amount will cause Sammamish to have reduced snowfall, hotter and drier summers, and more warm-season extreme weather events.[15]

Sammamish's climate change action plan includes, but is not limited to, tree replacement, voluntary planting, protecting threatened species, protecting native fish such as Chinook salmon and the streams, lakes and ponds they live in, floodplain management, wetland protection, emission reduction, light/noise pollution reduction, toxin (pesticide) control, and many other measures.[15]

### Surrounding cities[edit]

Places adjacent to Sammamish, Washington

| Redmond | Union Hill-Novelty Hill | Carnation

|
|

|  |
Bellevue |

Sammamish

| Snoqualmie Valley
|  |
Lakemont | Issaquah | Fall City

## Demographics[edit]

Historical population Census| Pop.| Note| %±

|
|
|

2000| 34,104| | —
2010| 45,780| | 34.2%
2020| 67,455| | 47.3%
2022 (est.)| 65,845| [5]| −2.4%
U.S. Decennial Census[16]
2020 Census[4]

According to the 2021 American Community Survey estimate, the median income for a household in the city is $195,648, and the median income for a family is $195,648. The per capita income for the city was $79,050.[17] The U.S. Census Bureau estimated that the median household income in Sammamish was $183,038 in 2018, placing it first among U.S. cities with a population greater than 65,000.[7]

Forbes ranked Sammamish 1st in its 2012 list of the "Friendliest Towns in the United States".[18] Sammamish is also ranked as the 5th safest city in the U.S.[19] In 2007, CNN Money ranked Sammamish as the 11th Best Place to Live in the United States,[20] and subsequently ranked it as #12 in 2009[21] and #15 in 2011.[22] Sammamish was also ranked the 9th Best Place to Live by Money.com in 2018.[23]

### 2020 census[edit]

As of the census of 2020, there were 65,455 people and 12,918 families living in the city. The population density was 3,302.9 inhabitants per square mile (1,275.3/km2). The racial makeup of the city was 58.0% White, 1.6% African American, 0.5% Native American, 33.3% Asian, 0.1% Pacific Islander, 0.6% from other races, and 5.9% from two or more races. Hispanic or Latino of any race were 3.5% of the population.

There were 21,930 households The average household size was 3.03.

29.6% of residents were under the age of 18 and 7.8% were 65 years of age or older. The gender makeup of the city was 51.8% female.

### 2010 census[edit]

As of the census of 2010, there were 45,780 people and 15,154 households. The population density was 2,512.6 inhabitants per square mile (970.1/km2). There were 15,736 housing units at an average density of 863.7 per square mile (333.5/km2). The racial makeup of the city was 74.7% White, 1.0% African American, 0.3% Native American, 19.3% Asian, 0.1% Pacific Islander, 0.9% from other races, and 3.7% from two or more races. Hispanic or Latino of any race were 3.9% of the population.

There were 15,154 households, of which 52.9% had children under the age of 18 living with them, 76.9% were married couples living together, 5.6% had a female householder with no husband present, 2.7% had a male householder with no wife present, and 14.8% were non-families. 11.4% of all households were made up of individuals, and 2.1% had someone living alone who was 65 years of age or older. The average household size was 3.01 and the average family size was 3.28.

The median age in the city was 37.7 years. 32.2% of residents were under the age of 18; 4.9% were between the ages of 18 and 24; 27.9% were from 25 to 44; 29.4% were from 45 to 64; and 5.7% were 65 years of age or older. The gender makeup of the city was 50.1% male and 49.9% female.

### 2000 census[edit]

As of the census of 2000, there were 34,104 people, 11,131 households, and 9,650 families living in the city. The population density was 1,888.9 people per square mile (729.5/km2). There were 11,599 housing units at an average density of 642.4/sq mi (248.1/km2). The racial makeup of the city was 87.82% White, 0.85% African American, 0.29% Native American, 7.89% Asian, 0.09% Pacific Islander, 0.60% from other races, and 2.46% from two or more races. Hispanic or Latino of any race were 2.50% of the population.

There were 11,131 households, out of which 53.3% had children under the age of 18 living with them, 79.5% were married couples living together, 5.3% had a female householder with no husband present, and 13.3% were non-families. 9.4% of all households were made up of individuals, and 1.5% had someone living alone who was 65 years of age or older. The average household size was 3.06 and the average family size was 3.29.

In the city the population was spread out, with 33.4% under the age of 18, 4.8% from 18 to 24, 33.2% from 25 to 44, 24.6% from 45 to 64, and 4.0% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 101.7 males. For every 100 females age 18 and over, there were 98.5 males.

The median income for a household in the city was $101,592, and the median income for a family was $104,356. Males had a median income of $76,688 versus $47,164 for females. The per capita income for the city was $42,971. About 2.0% of the population and 1.6% of families were below the poverty line, including 1.7% of those under age 18 and 3.2% of those age 65 or over.

## Parks[edit]

Sammamish has ten parks (Beaver Lake Park, Big Rock Park North, Big Rock Park, East Sammamish Park, Ebright Creek Park, Evans Creek Preserve, NE Sammamish Park, Pine Lake Park, Sammamish Commons, Sammamish Landing). Soaring Eagle Regional Park and Duthie Hill Park abut the city and are on the plateau. East Lake Sammamish Trail runs along the eastern side of Lake Sammamish and connects to a regional trail system, like the Sammamish River Trail to the north, and the Issaquah-Preston Trail to the south.

East Sammamish Park in the northwest of the city came with it in 1999.

## Government[edit]

The Sammamish City Council is elected by the community. Of the seven council members, two members are elected as Mayor and Deputy Mayor. Council meetings are held at City Hall, part of the Sammamish Commons, which is also the site of Sammamish Library, a branch of the King County Library System.

Sammamish does not have its own post office; the closest one is in Redmond.[24] Eastside Fire and Rescue is contracted to provide fire services. Sammamish contracts with the King County Sheriff's Office for police services. Deputies assigned to Sammamish wear city uniforms and drive patrol cars marked with the city logo.

## Education[edit]

Sammamish's public school system is served by two school districts.

North Sammamish is served by Lake Washington School District,[25] and has two high schools (Eastlake, Tesla STEM), two middle schools (Inglewood, Renaissance School of Art and Reasoning), and five elementary schools (Elizabeth Blackwell, Rachel Carson, Christa McAuliffe, Margaret Mead, Samantha Smith).[26]

South Sammamish is served by Issaquah School District,[25] and has two high schools (Issaquah, Skyline), three middle schools (Beaver Lake, Pacific Cascade, Pine Lake), and seven elementary schools (Cascade Ridge, Cedar Trails, Challenger, Creekside, Discovery, Endeavour, Sunny Hills).

A very small portion to the east is in the Snoqualmie Valley School District.[25]

Eastside Catholic School is a private school in the city.

Central Washington University is a public university that opened a Sammamish location on September 20, 2017.[27]

## Transportation[edit]

Sammamish is served by three major north–south roads: East Lake Sammamish Parkway, 228th Avenue, and 244th Avenue. They connect to State Route 202 to the north, providing access to Redmond, and Interstate 90 to the south in Issaquah. A regional freeway, Interstate 605, has been proposed several times since the 1960s to run through Sammamish, but has not been built.[28]

Bus service is provided by King County Metro routes 218, 269, and Sound Transit Express route 554 to Redmond, Issaquah, and Downtown Seattle. South Sammamish Park and Ride is the city's transit center with 265 parking stalls. Metro began running dial-a-ride buses to the Sammamish Plateau in 1993,[29] and it later extended commuter services in the early 2000s.[30]

The King County government began construction of an 11-mile (18 km) bike trail on the east side of Lake Sammamish in 1998, replacing a disused railway.[31]

## Notable people[edit]

* Hunter Bryant, professional American football player
* Blake Hawksworth, professional baseball player
* Kim Schrier, U.S. congresswoman
* Matisse Thybulle, professional basketball player
* Surf Mesa, musician

## References[edit]

1. ^ "City Manager". City of Sammamish. Retrieved March 29, 2022.
2. ^ "City Council". City of Sammamish. Retrieved March 29, 2022.
3. ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved July 24, 2022.
4. ^ a b c "Explore Census Data". United States Census Bureau. Retrieved November 23, 2023.
5. ^ a b "City and Town Population Totals: 2020-2022". United States Census Bureau. November 23, 2023. Retrieved November 23, 2023.
6. ^ "Sammamish". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
7. ^ a b Balk, Gene (October 7, 2019). "Think Seattle's rich? This Eastside city tops census list of richest U.S. cities". The Seattle Times. Retrieved October 26, 2019.
8. ^ a b c d Dougherty, Phil (December 23, 2013). "Sammamish — Thumbnail History". HistoryLink. Retrieved October 30, 2023.
9. ^ "Lake Sammamish: Restoring Culture and Life back to an Urban Landscape". snoqualmie.maps.arcgis.com. Retrieved October 31, 2023.
10. ^ "Sammamish incorporates on August 31, 1999". HistoryLink. Retrieved June 22, 2011.
11. ^ "Officially Sammamish: Klahanie annexation brings city's population to more than 60,000". Issaquah Reporter. Retrieved July 7, 2016.
12. ^ "US Gazetteer files 2010". United States Census Bureau. Archived from the original on July 2, 2012. Retrieved December 19, 2012.
13. ^ "Cougar/Squak Corridor". KingCounty.gov. October 28, 2023.
14. ^ a b "Monthly Averages for Sammamish, WA (98075)". Weather.com. Retrieved November 16, 2011.
15. ^ a b "Critical Areas Ordinance Update – City of Sammamish" (PDF). October 20, 2023.
16. ^ United States Census Bureau. "Census of Population and Housing". Retrieved June 4, 2016.
17. ^ "U.S. Census Bureau QuickFacts: Sammamish city, Washington". www.census.gov. Retrieved January 25, 2022.
18. ^ "America's Friendliest Towns, 2012". Forbes.com. Retrieved December 23, 2012.
19. ^ "Top 100 Safest Cities in America, 2017 | National Council For Home Safety and Security". www.alarms.org. Retrieved August 5, 2017.
20. ^ "CNN Money: Best Places to Live 2007".
21. ^ "CNN Money: Best Places to Live 2009".
22. ^ "CNN Money: Best Places to Live 2011".
23. ^ Lim, Christine (September 10, 2018). "Best Places to Live 2018". Money.com. Archived from the original on August 19, 2020.
24. ^ "PO Locator | USPS". tools.usps.com. Retrieved October 29, 2023.
25. ^ a b c U.S. Census Bureau Geography Division (December 21, 2020). 2020 Census – School District Reference Map: King County, WA (PDF) (Map). 1:80,000. U.S. Census Bureau. p. 2. Retrieved August 3, 2022.
26. ^ "Elementary Schools - Lake Washington School District". lwsd.org. Retrieved March 5, 2020.
27. ^ "Welcome to Central Washington Sammamish". cwu.edu. Retrieved August 29, 2018.
28. ^ Singer, Natalie (July 15, 2004). "State study revives idea of new Western Washington highway". The Seattle Times. Archived from the original on December 23, 2017. Retrieved January 21, 2018.
29. ^ Guadette, Karen (February 11, 2005). "Little bus makes a big difference". The Seattle Times. Retrieved January 21, 2018.
30. ^ Foster, George (October 21, 2001). "Getting There: Now you see the lane..." Seattle Post-Intelligencer. Retrieved January 21, 2018.
31. ^ "Safety, accessibility enhanced as 1.2-mile-long East Lake Sammamish Trail segment reopens" (Press release). King County Department of Natural Resources and Parks. January 17, 2018. Retrieved January 21, 2018.

## External links[edit]

Wikimedia Commons has media related to Sammamish, Washington.

* City of Sammamish official website

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* Pend Oreille
* Pierce
* San Juan
* Skagit
* Skamania
* Snohomish
* Spokane
* Stevens
* Thurston
* Wahkiakum
* Walla Walla
* Whatcom
* Whitman
* Yakima

* Pacific Northwest portal
* United States portal

Authority control databases

International|

* VIAF

National|

* United States

Geographic|

* MusicBrainz area

*[Pop.]: Population
*[%±]: Percent change
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