Snohomish County, WA demographics:
population, income, and more

Total population
844,430
1.2% year-over-year change
Median household income
$111,246/yr
3.0% year-over-year change
Housing units
331,530
1.1% year-over-year change

Snohomish County population

How many people live in Snohomish County

Snohomish County is home to 844,430 residents, according to the most recent Census data. Gender-wise, 50.4% of Snohomish County locals are male, and 49.6% are female.

Total population
844,430
1.2% year-over-year change
Gender ratio
Male
50.4%
425,784
Female
49.6%
418,646
Value Percent YoY change
Male 425,784 50.4% 1.2%
Female 418,646 49.6% 1.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Snohomish County is 39, with the population distributed as follows: about 18.4% are children under 15, then 11% are in the 15 to 24 age group. Adults between 25 and 44 make up 30.5% of the population, while another 25.3% fall into the 45 to 64 bracket. Finally, around 14.8% are 65 or older.

Median age
38.6
Age breakdown
Under 15
18.4%
15 to 24
11%
25 to 44
30.5%
45 to 64
25.3%
Over 65
14.8%
Value Percent YoY change
Under 15 155,150 18.4% -0.1%
15 to 24 92,842 11% 0.5%
25 to 44 257,693 30.5% 2.5%
45 to 64 213,982 25.3% -0.7%
Over 65 124,763 14.8% 3.8%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Snohomish County, 79% of the population are US-born citizens, while 11.5% have gained naturalized citizenship. At the same time, 9.5% of residents are non-citizens. As for race, 64.2% of locals are Caucasian, 3.7% are African American and 13.6% have Asian roots. Another 1% are Indigenous American, 0.6% are Pacific Islanders, while 5.2% identify as another race. There’s also a share of 11.7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
79%
Non-U.S.-born citizens
11.5%
Non-citizens
9.5%
Value Percent YoY change
U.S.-born citizens 667,432 79% 0.3%
Non-U.S.-born citizens 96,890 11.5% 3.3%
Non-citizens 80,108 9.5% 6.1%
Racial breakdown
White
64.2%
Black or African American
3.7%
American Indian and Alaska Native
1%
Asian
13.6%
Native Hawaiian and other Pacific Islander
0.6%
Two or more races
11.7%
Other
5.2%
Value Percent
White 541,948 64.2%
Black or African American 31,141 3.7%
American Indian and Alaska Native 8,838 1%
Asian 114,960 13.6%
Native Hawaiian and other Pacific Islander 4,640 0.6%
Two or more races 98,994 11.7%
Other 43,909 5.2%

Households in Snohomish County

A peek inside Snohomish County households

Snohomish County has 316,212 households, with an average of 3 members in each. Of these, 67.7% are families, while the remaining 32.3% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
316,212
1.4% year-over-year change
Average people per household
3
Non-family households
102,025
Family households
214,187
Value Percent YoY change
Non-family households 102,025 32.3% 3.7%
Family households 214,187 67.7% 0.3%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Snohomish County

The housing landscape of Snohomish County

Snohomish County's housing consists of 331,530 units, with 63.9% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 5% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 4.6% of the housing landscape.

Housing units
331,530
1.1% year-over-year change
Housing types
Value Percent
1 unit, detached 211,825 63.9%
1 unit, attached 16,409 5%
2 units 7,869 2.4%
3 or 4 units 11,015 3.3%
5 to 9 units 15,026 4.5%
10 to 19 units 19,379 5.8%
20 to 49 units 14,365 4.3%
50 or more units 19,837 6%
Mobile home 15,145 4.6%
Boat, RV, van, etc. 660 0.2%
Homes built since 2020
8,764
48.6% year-over-year change

The age of buildings in Snohomish County

In Snohomish County, the median construction year is 1990. About 4.9% of homes were built before the 1940s, with another 1.9% going up by 1949. Most development happened in the second half of the 20th century. Then, 17.6% of homes were added from 2000 to 2009, 12.2% between 2010 and 2019, and 2.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 16,100 4.9% -0.5%
Built between 1940 and 1949 6,177 1.9% -2.9%
Built between 1950 and 1959 16,464 5% -5.1%
Built between 1960 and 1969 32,465 9.8% -1.7%
Built between 1970 and 1979 43,572 13.1% -3.4%
Built between 1980 and 1989 49,736 15% 0.7%
Built between 1990 and 1999 59,660 18% -0.5%
Built between 2000 and 2009 58,309 17.6% 2.9%
Built between 2010 and 2019 40,283 12.2% 6.1%
Built in 2020 or later 8,764 2.6% 48.6%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Snohomish County occupancy rates

Out of the 316,212 occupied housing units in Snohomish County, 68.2% are owner-occupied, while 31.8% are lived in by tenants. Meanwhile, 4.6% of all homes on the local market sit vacant.

Occupied housing units
316,212
1.4% year-over-year change
Occupancy breakdown
Renter occupied
100,610
Owner occupied
215,602
Value Percent YoY
change
Renter occupied 100,610 31.8% 2.1%
Owner occupied 215,602 68.2% 1.1%
Unoccupied housing units
4.6%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Snohomish County housing costs

Housing costs in Snohomish County come to a median of $2,111 per month, while tenants specifically pay a median gross rent of $1,949.

Median housing costs per month
$2,111/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Snohomish County
$1,949/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Snohomish County

Snohomish County education at a glance

About 29.2% of the population in Snohomish County went to high school, while 22.1% pursued college studies. Another 10.3% earned an associate degree and 23.6% hold a bachelor’s. Meanwhile, 12.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 16,445 2.5% 0.9%
High school diploma 192,314 29.2% 1.3%
College diploma 145,074 22.1% -2.7%
Associate degree 67,991 10.3% -1.1%
Bachelor's degree 155,135 23.6% 4.0%
Graduate degree 80,615 12.3% 7.8%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Snohomish County

How much people earn in Snohomish County

The average annual household income in Snohomish County was $142,821 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +5% change from the previous year. At the same time, the median income stood at $111,246, reflecting a +3% shift over the same period.

Average household income in Snohomish County
$142,821/year
5.0% year-over-year change
Median household income in Snohomish County
$111,246/year
3.0% year-over-year change

Snohomish County income by age

In Snohomish County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $126,069. Those with someone between 45 and 64 in charge, often well established professionally, earn $132,723 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $70,679, while those led by someone over 65, many of whom may be retired, have about $69,352 in earnings. Overall, 92% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $70,679 -1.1%
25 - 44 $126,069 4.7%
45 - 64 $132,723 4.0%
Over 65 $69,352 2.9%
Above poverty level
759,817
Below poverty level
66,521
Value Percent YoY
change
Above poverty level 759,817 92% 1.1%
Below poverty level 66,521 8% 3.4%

Employment in Snohomish County

Workforce and job types in Snohomish County

The job market in Snohomish County is powered by 433,891 working residents, spread across a range of industries and roles. 79.1% of the working population are employed in professional or administrative positions, while 20.9% are in hands-on or service-based jobs. Also, 9.2% run their own businesses, 70% are employed by private companies, and 13.1% work in the public sector.

Workforce demographics

Working population
433,891
1.6% year-over-year change
White collar
343,158
Blue collar
90,733
Value Percent YoY change
White collar 343,158 79.1% 2.4%
Blue collar 90,733 20.9% -1.4%
Employer type
Self employees
9.2%
Private companies
70%
Governmental workers
13.1%
Not for profit companies
7.6%
Value Percent YoY change
Self employees 39,898 9.2% 0.0%
Private companies 303,920 70% 1.7%
Governmental workers 56,901 13.1% 1.7%
Not for profit companies 33,172 7.6% 1.5%
Unemployment rate
4.5%
4.5% year-over-year change

Available workforce

The unemployment rate in Snohomish County stands at 4.5%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Snohomish County

How people get around in Snohomish County

In Snohomish County, the average commute time is 31 minutes. Commuting methods vary: 74.1% of residents travel by personal vehicle and 1.6% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
31 min
-1.3% year-over-year change
Means of transportation
Value Percent YoY change
Car 315,948 74.1% -0.9%
Taxicab 357 0.1% 3.5%
Bus or trolleybus 10,693 2.5% -9.3%
Subway or elevated 334 0.1% N/A
Railroad 312 0.1% -42.9%
Ferryboat 139 0% -9.7%
Motorcycle 658 0.2% -12.4%
Bicycle 1,258 0.3% 6.6%
Walk 6,825 1.6% -2.8%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Snohomish County by zipcode?

Zipcode Population Number of households Median income Average income
98012 77,041 27,903 $146,144 $177,969
98020 19,551 9,017 $130,319 $207,158
98021 35,631 12,378 $183,786 $223,920
98026 38,976 15,500 $133,638 $163,705
98036 42,370 16,575 $88,958 $121,332
98037 29,723 11,259 $107,281 $130,618
98043 23,101 9,843 $107,687 $135,568
98072 24,446 9,487 $175,805 $219,561
98077 14,109 4,743 $184,306 $267,286
98087 41,796 16,575 $106,693 $126,046

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FAQs about Snohomish County demographics 

What is the total population of Snohomish County?

Snohomish County has a total population of 844,430 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.2% compared to a year ago.

What is the gender ratio in Snohomish County?

The gender ratio in Snohomish County is as follows:
  • 50.4% males (425,784 residents)
  • 49.6% females (418,646 residents)

What is the median age in Snohomish County?

The median age in Snohomish County is 38.6.

What is the age distribution of the population in Snohomish County?

The age distribution in Snohomish County is as follows:
  • Under 15: 18.4% (155,150 residents)
  • Ages 15-24: 11% (92,842 residents)
  • Ages 25-44: 30.5% (257,693 residents)
  • Ages 45-64: 25.3% (213,982 residents)
  • Over 65: 14.8% (124,763 residents)

What is the racial and ethnic makeup of Snohomish County?

The racial and ethnic makeup of Snohomish County is as follows:
  • White: 64.2% (541,948 residents)
  • Black or African American: 3.7% (31,141 residents)
  • American Indian and Alaska Native: 1% (8,838 residents)
  • Asian: 13.6% (114,960 residents)
  • Native Hawaiian and Other Pacific Islander: 0.6% (4,640 residents)
  • Two or More Races: 11.7% (98,994 residents)
  • Other: 5.2% (43,909 residents)

What percentage of the population in Snohomish County are U.S.-born citizens?

U.S.-born citizens represent 79% of the population in Snohomish County.

How many housing units are there in Snohomish County?

There are 331,530 housing units in Snohomish County, reflecting a +1.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Snohomish County and what is the average household size?

Snohomish County has a total of 316,212 households, with an average of 3 people in each.

What is the median household income in Snohomish County?

Snohomish County has a median household income of $111,246, representing a +3.0% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Snohomish County?

The employment rate is 95.5% in Snohomish County, with a workforce of 433,891 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 79.1% (343,158 residents)
  • Blue-collar workers: 20.9% (90,733 residents)

Places of employment:
  • Self-employed: 9.2% (39,898 residents)
  • Private companies: 70% (303,920 residents)
  • Governmental workers: 13.1% (56,901 residents)
  • Not-for-profit companies: 7.6% (33,172 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025