City · King County, Washington

Sammamish, Washington

Sammamish is a city in King County, Washington, part of the Seattle-Tacoma-Bellevue, WA metro area. It has 66,463 residents. Sammamish, Washington has a quality-of-life score of 91 out of 100 (very high), ranking #1,414 of 15,651 US cities and towns. Within Washington it ranks #10 of 395 cities and towns. It ranks best on adult smoking (low), physical inactivity (low) and adult obesity (low). It ranks worst on property crime rate (high), drug overdose deaths (high) and home price to income ratio (high).

91Very high

Quality-of-life score: #1,414 of 15,651 cities and towns
Washington: #10 of 395 in WA
Population: 66,463 (2020-2024)
Land area: 20 mi²
Density: 3,253.6 /mi²
FIPS code: 5361115

Percentile-based score (100 is the best in the country) from 75 of 80 indicators, with the default “Explorer” weights.

Open in the map

Scores by category

Each category averages its indicators' percentile scores among US cities and towns.

Safety35#10,091/15,637
Economy98#327/15,631
Housing54#6,923/14,977
Health92#1,265/15,609
Healthcare96#678/15,650
Environment20#12,327/15,453
Education91#1,338/15,649
Infrastructure97#436/15,650
Community90#1,587/15,651
Leisure & amenities91#1,386/15,651

Strengths · Weaknesses

Indicators where Sammamish, Washington ranks highest and lowest among US cities and towns (score = percentile, 100 = best). Values marked “King County value” are the county’s: the source publishes no figure for this city or town, and the county holding most of its residents stands in.

Strengths

Adult smoking · low4.9%
100/100Washington 12.2%United States 16.1%2023University of Wisconsin Population Health InstituteModel-based estimate
Physical inactivity · low10.8%
100/100Washington 19.0%United States 26.5%2023University of Wisconsin Population Health InstituteModel-based estimate
Adult obesity · low18.3%
100/100Washington 35.0%United States 38.2%2023University of Wisconsin Population Health InstituteModel-based estimate
Food insecurity · low5.1%
100/100Washington 10.5%United States 15.6%2022Centers for Disease Control and PreventionModel-based estimate
Average weekly wage · high$2,632
99/100Washington $1,917United States $1,5142025U.S. Bureau of Labor StatisticsKing County value
Poor or fair health · low9.1%
99/100Washington 17.4%United States 19.9%2023University of Wisconsin Population Health InstituteModel-based estimate

Weaknesses

Property crime rate · high2,714 /100k
3/100Washington 1,975 /100kUnited States 1,535 /100k2025Federal Bureau of InvestigationKing County value
Drug overdose deaths · high32.0 /100k
7/100Washington 32.7 /100kUnited States 18.4 /100kMar 2025–Feb 2026Centers for Disease Control and PreventionProvisional dataKing County value
Home price to income ratio · high5.9×
11/100Washington 5.8×United States 4.1×2020-2024U.S. Census Bureau Census table B25077
Fine particulate matter (PM2.5) · high8.9 µg/m³
14/100Washington 8.4 µg/m³United States 8.0 µg/m³2022Centers for Disease Control and Prevention · U.S. Environmental Protection AgencyKing County value
Students per teacher · high17.8×
15/100Washington 17.9×United States 15.2×2024National Center for Education StatisticsKing County value
Average commute time · high29.3 min
16/100Washington 26.6 minUnited States 26.4 min2020-2024U.S. Census Bureau Census table B08013

Trends

The largest changes over about five years, next to the country's over the same periods.

Rent-burdened householdsWorsening
28.9% (2015-2019) → 43.6% (2020-2024)
+15 pts5 yearsCensus table B25070US 49.6% → 51.1%
Median household incomeImproving
$174,003 (2015-2019) → $239,690 (2020-2024)
+38%5 yearsCensus table B19013US $65,712 → $81,604
Public transit commutersWorsening
8.5% (2015-2019) → 2.6% (2020-2024)
−5.9 pts5 yearsCensus table B08301US 5.0% → 3.2%
Home price to income ratioWorsening
4.8× (2015-2019) → 5.9× (2020-2024)
+23%5 yearsCensus table B25077US 3.5× → 4.1×
New homes permittedImproving
0.8 /1k (2021) → 0.9 /1k (Sep 2025–Aug 2026)
+22%5 yearsUS 5.2 /1k → 4.2 /1k
Rent as share of incomeWorsening
23.4% (2015-2019) → 27.8% (2020-2024)
+4.4 pts5 yearsCensus table B25071US 29.8% → 30.6%

What changed in five years

How each measure moved between two periods about five years apart, read against whether more or less is better, the published margin of error and the same change in other places.

Over about five years, Sammamish, Washington improved on 3 of 15 measures with a comparison and declined on 8. 3 moved within the margin of error and 1 barely changed.

Earlier (2015-2019)
Latest (2020-2024)
Lower standingHigher standing

Position is the place's standing among cities and towns: further right is better, whichever way the measure counts.

Improved3

Commute−4.3 min33.6 min → 29.3 min
Household income+38%$174,003 → $239,690
Broadband+0.9 points98.2% → 99.1%

Declined8

Rent burden+15 points28.9% → 43.6%
Price / income+1.1×4.8× → 5.9×
Inequality+0.0350.371 → 0.406
Rent / income+4.4 points23.4% → 27.8%
Transit use−5.9 points8.5% → 2.6%

All 15 measures

Change of every measure of Sammamish, Washington between two periods about five years apart
Measure	Before	After	Change	Reading	Favourable vs peers
Average commute time	33.6 min2015-2019	29.3 min2020-2024	−4.3 min	Improved	87%
Bachelor's degree or higher	75.2%2015-2019	77.1%2020-2024	+1.9 points	Within the margin of error	42%
Broadband subscriptions	98.2%2015-2019	99.1%2020-2024	+0.9 points	Improved	11%
Child poverty rate	3.0%2015-2019	4.9%2020-2024	+1.9 points	Declined	30%
Effective property tax rate	0.86%2015-2019	0.74%2020-2024	−0.1 points	Little change	41%
High school diploma or higher	97.4%2015-2019	97.5%2020-2024	+0.1 points	Within the margin of error	34%
Home price to income ratio	4.8×2015-2019	5.9×2020-2024	+1.1×	Declined	19%
Income inequality (Gini index)	0.3712015-2019	0.4062020-2024	+0.035	Declined	23%
Median household income	$174,0032015-2019	$239,6902020-2024	+38%	Improved	70%
Poverty rate	2.4%2015-2019	4.3%2020-2024	+1.9 points	Declined	27%
Public transit commuters	8.5%2015-2019	2.6%2020-2024	−5.9 points	Declined	5%
Rent as share of income	23.4%2015-2019	27.8%2020-2024	+4.4 points	Declined	25%
Rent-burdened households	28.9%2015-2019	43.6%2020-2024	+15 points	Declined	15%
Unemployment rate	2.8%2015-2019	3.1%2020-2024	+0.4 points	Within the margin of error	41%
Uninsured residents (under 65)	1.3%2015-2019	2.4%2020-2024	+1.1 points	Declined	33%

“Against peers” compares the change with the same change in the 14640 cities and towns that have the same two periods. It describes how common a change is, not why it happened.

Sources: American Community Survey 5-Year Estimates. Values are the latest and the one five years earlier of the same publisher dataset; datasets that changed publisher in between are never compared.

Survey estimates (American Community Survey) compare the two most recent 5-year windows that do not share years, so the margin of error of the difference holds. The 2015-2019 window predates the pandemic and 2020-2024 includes it.
A change counts only when it is larger than 1.645 times the square root of the two standard errors squared, summed (a 90% margin). Measures published without a margin must change by at least 5% to count.
“Against peers” compares the change with the same change in the 15651 cities and towns that have the same two periods. It describes how common a change is, not why it happened.
Standing is a percentile among the same places: 0 is the lowest value on the measure (or the worst when lower is better), 100 the best.

Cities and towns like Sammamish, Washington five years ago that improved

The places whose measures looked most like those of Sammamish, Washington in the earlier period, ranked by how many measures improved beyond the margin of error, minus how many declined. A comparison of published data, not a forecast and not advice.

For comparison, Sammamish, Washington itself moved −6.6 points in standing on average over the same 10 measures (standings of all places average about zero).

How the ranking works

Similarity is the root-mean-square difference of standings in the earlier period over the measures most places have. Places are ranked by measures that improved beyond the margin of error minus those that declined (a count that estimation noise in small places cannot inflate), then by the mean change of standing over the measures a place has in both periods. Only places with more improvements than declines and a rise in standing are listed. Standings are relative, so a place can improve in absolute terms and still lose standing.

Who lives here

Age, race and education of residents, from the American Community Survey. Shares are of all residents (age), residents of every origin (race) or adults 25 and over (education).

Age and sex

66,463 residents (±44)

Men
Women

80 and over†
70–79
60–69

Income

How household income is spread, not just the middle: each bar is the share of households in that income range.

Household income

22,144 households (±430)

Sammamish, Washington
Washington share

Under $25k4.7%†1,038
$25k–50k3.3%737
$50k–75k4.6%1,014

Homes

Who owns and who rents, what homes cost, and what the housing stock looks like.

Owners and renters

22,144 households (±430)

Sammamish, Washington
Washington share

Own83%18,280
Rent17%3,864

Biggest shift since 2015–2019: Own (−3.1 points).

Table view

Getting to work

How workers travel to their job and how long it takes them.

How people get to work

32,602 workers (±821)

Sammamish, Washington
Washington share

Drive alone50%16,456
Carpool4.7%1,546
Public transit2.6%837

Jobs and pay

What the largest occupations here pay, from the Bureau of Labor Statistics' Occupational Employment and Wage Statistics survey.

The Bureau of Labor Statistics publishes pay by metro area, not by county or city. The metro area page lists its largest occupations and lets you look up any job.

Pay in the Seattle-Tacoma-Bellevue, WA

Local businesses

Employer businesses and sole proprietors by industry, per resident and against the state and the nation. Counts of businesses next to counts of people, not a measure of demand.

The Census Bureau publishes business counts by county, not by city, so these are the figures of King County, the county holding most of Sammamish's residents.

King County has 70,376 employer establishments, 308 for every 10,000 residents (1.24× the US rate of 248; 1.20× Washington's), with 1,305,947 paid employees at an average annual pay of $110,043. The Census Bureau also counts 202,770 nonemployer businesses, mostly sole proprietors.

Establishments: 70,376; 202,770 nonemployers
Per 10,000 residents: 308; US 248 · Washington 258
Paid employees: 1,305,947
Average annual pay: $110,043; US $68,342

Employer establishments, employees, average pay and nonemployers of King County by industry, with the density per resident against the nation

Ambulatory health care services	5,715	25	1.20×About typical	68,816	$77,202	10,245
Restaurants and other eating places	5,403	23.7	1.29×More than typical	84,390	$34,554	762
Lessors of real estate	5,152	22.6	1.83×More than typical	27,321	$83,981	21,973
Specialty trade contractors	3,739	16.4	1.06×About typical	46,610	$89,054	6,017
Construction of buildings	2,825	12.4	1.64×More than typical	23,074	$97,452	3,804
Management, scientific and technical consulting	2,644	11.6	1.73×More than typical	29,439	$141,081	13,433
Full-service restaurants	2,618	11.5	1.49×More than typical	44,749	$39,294	313
Offices of other health practitioners	2,317	10.1	1.67×More than typical	10,665	$51,767	6,189
Real estate agents and brokers	2,276	10	2.05×More than typical	7,330	$99,042	5,709
Computer systems design and related services	2,117	9.3	2.14×More than typical	41,208	$141,132	4,743
Limited-service restaurants	1,771	7.8	0.97×About typical	27,274	$29,501	293
Services to buildings and dwellings	1,700	7.4	1.10×About typical	14,246	$49,924	6,666

Rank places for an industry Open King County

County Business Patterns (2023); Nonemployer Statistics (2024)

Per-resident figures divide by the population estimate of 2023: 2,283,086 residents here, 336,755,052 in the United States. County Business Patterns counts establishments in 2023; the Nonemployer Statistics count businesses in 2024.
“More than typical” is a density at least 1.25 times the nation's per resident, “fewer” at most 0.8 times, with at least 10 establishments. It compares counts of businesses with counts of people: it says nothing about demand, incomes, size, quality or profit, and visitors and commuters are not residents.
The Census Bureau adds noise to employment and payroll to protect confidentiality, and withholds some figures: an industry with few establishments can show employees or pay as unavailable.
Industries overlap: a narrower industry (full-service restaurants) is part of a broader one (restaurants), so the rows do not add up.
Industries follow the North American Industry Classification System; the two surveys use different editions (NAICS 2017 and 2022), which this page matches industry by industry.

Federal contracts performed here

In FY2026, an estimated $98.1K of federal contract obligations were for work performed in Sammamish, Washington: $1.48 per resident (US $1,994).

Obligations: $98.1K; −77% vs FY2025
Per resident: $1.48; US $1,994
Sole-source: 0.0%; US 30%
Single offer: 2.9%; US 8.8%

A signal is a reason to look closer, not evidence of wrongdoing: most sole-source awards are lawful and justified.

Top buying agencies

Top recipients

HALEY & ALDRICH, INC$95.3K97%
BLUE EAGLE SECURITY SOLUTIONS LLC$2,8622.9%

Spending by fiscal year

173.3KFY2017
167.6KFY2018
304.5KFY2019
42.3MFY2020
1.8MFY2021
2.2MFY2022
2.4MFY2023
1.4MFY2024

Top industries (NAICS)

Architectural, engineering, and related services · 5413$95.3K97%
Investigation and security services · 5616$2,8622.9%

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 3, 2026, loaded Oct 3, 2026.

How this is estimated

Agencies report each contract action's place of performance as a county and a ZIP code. A ZIP code's money is split among the cities it covers by the share of its land inside each (Census 2020 ZIP code tabulation areas); the part outside city limits stays with the county.

The place of performance is what the contracting agency reports, often the contractor's office rather than where the work happens.
Shares are of land, not of people or businesses: a ZIP code that is mostly rural land but has its offices in town gives the town less than it should.
ZIP codes that are not mapped areas (post office boxes, the unique ZIP codes of large federal sites and companies) stay with their county, unless one city covers nearly all of it.
Counts of actions and awards include those only partly in Sammamish, Washington, so they do not add up across cities.

Sammamish, Washington's figures are part of those of King County, WA ($11.1B in FY2026), never added to them: 0.0% of that total.

Grants and other federal assistance are counted by county here, not split among cities: Sammamish is mostly in King County.

See federal money in King County

Representation in Congress

Members serving today, with their record in the current Congress (party-unity votes cast with their caucus, roll calls missed). Not a grade.

Sammamish, Washington is split between congressional districts: each representative is shown with the share of its residents in their district (current boundaries).

House

County

A city can lie in several counties. Some indicators are published for counties only: the page marks them.

King County83100% of residents

Metro area

The metro or micro area the city belongs to.

Seattle-Tacoma-Bellevue, WA82

Other cities and towns in King County

Largest first.

Similar cities and towns

Closest indicator profiles across the country (no model: score distances).

Data and sources

Latest published value of each indicator; periods differ by source. Values flagged by their publisher are marked.

PLACES: Local Data for Better HealthCenters for Disease Control and Prevention · release 2025
Local Area Unemployment StatisticsU.S. Bureau of Labor Statistics · release 2025
American Community Survey 5-Year EstimatesU.S. Census Bureau · release 2017-2024
Building Permits SurveyU.S. Census Bureau · release 2026-08
Population Estimates ProgramU.S. Census Bureau · release 2025
Small Area Health Insurance EstimatesU.S. Census Bureau · release 2024
Small Area Income and Poverty EstimatesU.S. Census Bureau · release 2024
County Health Rankings & RoadmapsUniversity of Wisconsin Population Health Institute · release 2022-2025+2026-03-supplement

JSON · /api/v1/places/5361115

Scores by category

Strengths · Weaknesses

Strengths

Weaknesses

Trends