Seattle, WA Profile: Facts & Data

The City of Seattle is the largest city in Washington with a population of 770,255 as of July 1, 2024. Seattle ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.

The primary coordinate point for Seattle is located at latitude 47.6062 and longitude -122.3321 in King County. The formal boundaries for the City of Seattle encompass a land area of 83.84 sq. miles and a water area of 58.82 sq. miles. King County is in the Pacific time zone (GMT -8).

The City of Seattle 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 Seattle is located within Seattle Division of King County.

Seattle, WA Data & Demographics (As of July 1, 2024)

POPULATION
Total Population	770,255 (100%)
Population in Households	741,214 (96.2%)
Population in Families	430,860 (55.9%)
Population in Group Quarters¹	29,041 ( 3.8%)
Population Density	9,170
Diversity Index²	67


INCOME
Median Household Income	$124,202
Average Household Income	$180,556
% of Income for Mortgage⁴	52%
Per Capita Income	$84,905
Wealth Index⁵	134
Socioeconomic Status Index⁶	Moderate (54.7)

HOUSING
Total HU (Housing Units)	387,582 (100%)
Owner Occupied HU	156,021 (40.3%)
Renter Occupied HU	205,229 (53.0%)
Vacant Housing Units	26,332 ( 6.8%)
Median Home Value	$1,023,462
Average Home Value	$1,183,423
Housing Affordability Index³	48

HOUSEHOLDS
Total Households	361,250
Average Household Size	2.05
Family Households	148,164
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races 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.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Seattle, WA - Peer Comparisons by Rank and Percentile

The table below compares Seattle to the other 639 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2024 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.

GROWTH RATE / YEAR	2020-2024	2024-2029
Population	1.04%	1.05%
Households	1.05%	0.99%
Families		0.82%
Median Household Income		3.99%
Per Capita Income		2.94%
Owner Occupied HU		0.81%

Variable Description	Rank	Percentile
Total Population	# 1	100th
Population Density	# 1	100th
Median Household Income	# 112	83rd
Housing Affordability Index	# 112	18th
Per Capita Income	# 24	96th
Diversity Index	# 132	79th

Seattle, WA Profile: Facts & Data

Seattle, Washington - Basic Facts

Seattle, WA Data & Demographics (As of July 1, 2024)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Seattle, WA - Peer Comparisons by Rank and Percentile

Seattle, WA - Most Popular Things to Do

Use HTL Address Research for a Washington Address and get...

Quick & Easy Ways to...

Washington Census Data Comparison Tool

King County