Sammamish, Washington Population 2020

67,969

Sammamish is a city located in Washington. With a 2020 population of 67,969, it is the 19th largest city in Washington and the 550th largest city in the United States. Sammamish is currently growing at a rate of 1.67% annually and its population has increased by 48.47% since the most recent census, which recorded a population of 45,780 in 2010. Spanning over 24 miles, Sammamish has a population density of 3,327 people per square mile.

The average household income in Sammamish is $198,149 with a poverty rate of 2.20%. The median rental costs in recent years comes to $2,270 per month, and the median house value is $749,000. The median age in Sammamish is 38.5 years, 39.2 years for males, and 37.7 years for females. For every 100 females there are 96.2 males.

Sammamish Demographics

According to the most recent ACS, the racial composition of Sammamish was:

  • White: 64.12%
  • Asian: 29.57%
  • Two or more races: 4.54%
  • Black or African American: 1.11%
  • Other race: 0.45%
  • Native American: 0.12%
  • Native Hawaiian or Pacific Islander: 0.08%
The current population of Sammamish, Washington is 67,969, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 65,733.The last official US Census in 2010 recorded the population at 45,780.

Sammamish, Washington Population 2020

Population by Race

Race Population Percentage
White41,07164.12%
Asian18,94229.57%
Two or More Races2,9054.54%
Black or African American7091.11%
Some Other Race2900.45%
American Indian and Alaska Native790.12%
Native Hawaiian and Other Pacific Islander530.08%

Sammamish Population Pyramid 2020

Sammamish Median Age

38.5


Total

39.2


Male

37.7


Female

Sammamish Adults

There are 44,788 adults, (4,840 of whom are seniors) in Sammamish.

Sammamish Age Dependency

60.3

Age Dependency Ratio

12.1

Old Age Dependency Ratio

48.2

Child Dependency Ratio

Sammamish Sex Ratio

Female

32,641

50.96%

Male

31,408

49.04%

Sammamish Households and Families

Sammamish Renter vs Owner Occupied by Household Type

Sammamish Household Types

Type Owner Renter
Married88.9%11.1%
All85.8%14.2%
Female83.1%16.9%
Non Family73.8%26.2%
Male57.2%42.8%

85.8%

Rate of Home Ownership

Type Count Average Size Owned
All21,2183.0185.8
Married16,8573.3188.9
Non Family2,5571.2473.8
Female1,1332.7383.1
Male6712.7757.2

3.23

Average Family Size

3.01

Average Household Size

2.1%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Sammamish Education

Education Attained Count Percentage
Less Than 9th Grade2530.61%
9th to 12th Grade7071.70%
High School Graduate2,6436.36%
Some College4,41910.64%
Associates Degree2,4155.81%
Bachelors Degree17,05441.06%
Graduate Degree14,04733.82%

Sammamish Educational Attainment by Race

Name Total High School Bachelors
White26,32125,93218,691
Asian12,42011,91510,536
Hispanic1,4251,385852
Multiple Races884873639
Black481455341
Other Race211210160
Native American584723
Islander363621

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 84.83%.

Name Average Male Female
Overall$104,313$135,927$61,748
Less Than High School$38,750$54,500$
High School Grad$47,750$58,684$22,231
Some College$49,665$83,376$38,485
Bachelors Degree$102,914$130,402$66,931
Graduate Degree$135,164$154,949$81,921

$104,313

Average Earnings

$135,927

Average Male

$61,748

Average Female

Sammamish Language

Sammamish Language by Age

Sammamish Language

67.98% of Sammamish residents speak only English, while 32.02% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 17.00% of the population.

Sammamish Poverty

Sammamish Poverty by Race

Name Total In Poverty Poverty Rate
White39,0057031.80%
Asian18,9054312.28%
Multiple2,9052348.06%
Hispanic2,7291415.17%
Black709162.26%
Other290124.14%
Native5811.72%

2.20%

Overall Poverty Rate

1.71%

Male Poverty Rate

2.68%

Female Poverty Rate

Poverty in Sammamish

The race most likely to be in poverty in Sammamish is Multiple, with 8.06% below the poverty level.

The race least likely to be in poverty in Sammamish is Native, with 1.72% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.25%. Among those working part-time, it was 2.69%, and for those that did not work, the poverty rate was 5.19%.

Name Poverty
Less Than High School7.19%
High School3.75%
Some College2.52%
Bachelors or Greater1.57%
Name Poverty
Female Unemployed3.82%
Male Unemployed2.72%
Female Employed1.31%
Male Employed0.57%

Sammamish Income

Sammamish Income by Household Type

Name Median Mean
Households$165,318$198,149
Families$176,811$209,187
Married Families$185,882-
Non Families$87,760$106,104

Sammamish Marital Status

Sammamish Marital Status

Marriage Rates

73.3%

Overall Marriage Rate

73.9%

Male Marriage Rate

72.7%

Female Marriage Rate

Sammamish Married by Age and Sex

Sammamish Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Sammamish Marital Status by Race

Sammamish Veterans

1,669

Number of Veterans

1,520

Male Veterans

149

Female Veterans

War Veterans
Vietnam567
First Gulf War497
Second Gulf War243
Korea150
World War II84
Age Group Veterans
35 to 54529
65 to 74432
75+384
55 to 64255
18 to 3469
Name Veterans % of Total
White1,4254.78%
2 or More786.98%
Black7815.95%
Asian670.51%
Hispanic281.69%
Hawaiian1336.11%
Other83.79%

$Sammamish Veterans by Education

1.50%

Veteran Poverty Rate

17.32%

Veteran Disability Rate

Sammamish Employment Status

69.2%

Labor Force Participation

66.9%

Employment Rate

3.1%

Unemployment Rate

Sammamish Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

33.22%

Born in Washington

71.64%

Native Born

28.36%

Foreign Born

16.23%

Non Citizen

Place of Birth

71.64% of Sammamish residents were born in the United States, with 33.22% having been born in Washington. 16.23% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
202067,9691,1181.67%
201966,8511,1181.70%
201865,7337241.11%
201765,0091,1181.75%
201663,8915530.87%
201563,3381,0861.74%
201462,2521,1891.95%
201361,0631,0391.73%
201260,0241,2672.16%
201158,7571,1051.92%
201057,65223,5485.39%
200034,1040.00%