Seattle's Comprehensive Plan included the goal of accommodating 50, to 60, additional households, an increase of 19 to 23 percent, between and We based that goal on the need to accommodate a growing population with the assumption that Seattle's average household size would continue its historical decline and drop to 2. Graph 1 shows the decline in household size from 2. The census found that the average household size for the city had in fact declined only slightly over the decade from 2.
The larger than expected household size recorded in the census meant that fewer housing units were needed to accommodate population growth. Housing growth matches population growth. The number of housing units in Seattle increased about 9 percent 21, units during the s to reach , units, according to Census Seattle's population also grew 9 percent over the decade.
In , the state estimated Seattle had approximately , housing units; the city's growth from to was nearly 4. Seattle's Comprehensive Plan did not assume that the growth in population or housing units would be distributed evenly over the 20 years. The forecasts in the plan showed that both household and population growth would be relatively slow in the mids. The growth rates were then forecast to gradually increase until The census indicated that the number of households in Seattle grew slightly more by than anticipated in our comprehensive plan.
However, because the average household size did not decline as much as was expected, Seattle had about 15, more people by than our comprehensive plan had forecasted.
Most Seattleites live in families. The majority of Seattleites 58 percent live in family households as defined by the U. Census Bureau see Graph 1. Family households are those where the head of the household is related to one or more others in the home by blood, adoption, or marriage.
Family households grew at a slower rate than other types of households. Graph 2 shows the shares of Seattle households that were families with and without children , unrelated people who lived together, and people who lived alone in Families made up the largest group at 44 percent of Seattle's households. While the number of families in Seattle grew during the decade, their share of total households is declining see Graph 3.
Other types of households have grown much faster: those comprised of unrelated persons grew by one-third and single-person households by 12 percent, while family households grew less than one percent over the decade. One-person households contributed the most growth to the number of Seattle households. The number of one-person households increased by over 11, between and , accounting for 52 percent of Seattle's new households over the decade.
Households of unrelated individuals contributed 46 percent of the growth in Seattle households. Families contributed 2 percent of Seattle's household growth between and Fewer of Seattle households are families than in King County, Washington state, or the nation.
Families were a lower percent of Seattle households than they were in King County, Washington state, and the United States see Table 1. Forty-four percent of Seattle's households were a family compared to 59 percent of King County households overall and 68 percent of King County households minus Seattle.
In Washington state and the United States, 66 percent and 68 percent of households were families, respectively. Seattle households are less likely to include children than are those in the county, state, and nation. Twenty percent of Seattle households included someone under 18 years of age.
The corresponding numbers in King County was 30 percent 37 percent excluding Seattle households , 35 percent in Washington state, and 36 percent in the United States.
Of the 12 cities shown in Table 2, only San Francisco had a lower proportion with children. Census Bureau, , Table DP Profile of General Demographic Characteristics: Seattle's average family size was steady.
The average family size for Seattle increased by 1 percent from 2. Families in King County were larger than families in Seattle; they averaged 3.
If Seattle families were excluded from King County, the average-size family in the county had 3. The average family size in Washington state was 3. Seattle stood apart from other cities in household composition. About twice as many Seattle households were comprised of unrelated individuals than was the case in the other Washington cities with population above , Bellevue, Spokane, Tacoma, and Vancouver see Table 2. Also, Seattle households were more likely than those in King County, Washington state, or the United States to be made of unrelated people see Table 1.
Fifteen percent of Boston households and 17 percent of San Francisco households were of this type. The other U. Family households were more prevalent in Washington's other cities with a population over , Bellevue, Spokane, Tacoma, and Vancouver, Washington all had a higher share of family households than Seattle, according to Census Family households were also more common in the other cities shown on Table 2, with the exception of San Francisco where, like Seattle, 44 percent of households are families.
Other Washington cities had a higher percentage of households with youth. One in five Seattle households included someone under age 18 compared to 29 percent in Bellevue, 32 percent in Spokane, 34 percent in Tacoma, and 36 percent in Vancouver, Washington.
Among the other cities shown on Table 2 only San Francisco had a lower percent of households 19 percent with youth under age 18 than Seattle. Seattle's average household size was relatively small.
Seattle's average household size for renter-occupied homes was also smaller than are those for King County, Washington State, the U. Living alone in Seattle almost as likely as living in a family. Seattle was unusual for its high proportion of one-person households. This type of household was more common in Seattle than it was in the county, state, or in the nation. Two of every five Seattle households is home to just one person — 41 percent, up slightly from 40 percent in In King County, 31 percent of households were comprised of one person 25 percent if Seattle households are excluded and 26 percent of households in both Washington state and the United States overall were one-person homes.
Living alone was more popular in Seattle than other Washington cities and selected United States cities of similar size. Two of five Seattle households were comprised of just one person. The percent of one-person households in the other four Washington cities with populations over , ranged from 28 percent in Bellevue and Vancouver to 34 percent in Tacoma. None of the other United States cities shown in the table below had as high a percent of one-person households as Seattle's 41 percent. Nearly one-quarter of Seattle's one-person households was home to seniors.
People age 65 or over comprised 23 percent of Seattle's one-person households. In King County overall, 25 percent of one-person households were home to seniors 26 percent if Seattle is excluded. Seniors made up 31 percent of one-person households in Washington state and 36 percent of one-person households in the United States. In Bellevue, Spokane, Tacoma, and Vancouver, Washington, the proportions of one-person households that were people age 65 or older were higher, ranging from 28 percent to 34 percent.
Of the other 12 United States cities shown in table 4, only three had a lower percent of one-person households occupied by seniors than Seattle. In Austin, just 14 percent of one-person households were seniors; however, Charlotte, North Carolina and Minneapolis-Saint Paul were similar to Seattle with 21 and 22 percent respectively. Seniors in Seattle were more likely to live on their own. In Seattle people age 65 or older were more likely to live alone than those residing in the rest of King County, Washington state, and the United States.
In Seattle, just over one-third of the people age 65 or over lived on their own. In , seniors in Seattle were equally likely to live alone as they were in 35 percent. In King County, 29 percent of those 65 or older lived alone; in King County apart from Seattle, 26 percent lived alone. In Washington state and the United States 28 percent in this age group lived alone. Three of the cities compared here had slightly higher proportions of seniors living alone than Seattle: Boston, Denver, and Minneapolis-Saint Paul.
All were within two percentage points of Seattle's 35 percent. Seattleites were more likely to live in their own homes than rent.
In Seattle, 54 percent of those who lived in housing units that is, not in group quarters lived in homes that either they or someone in their household owned. The other 46 percent of this population lived in a home that is rented. Homeowners and renters occupied nearly equal proportions of housing units. Fifty-two percent of occupied housing units were renter-occupied and homeowners lived in the remaining 48 percent.
Because the average household size for owner-occupied housing units was 2. Homeownership declined slightly from 49 percent of households in to 48 percent in The average-size household in had 2.
While the average size of rental households remained stable since at 1. Seattle's homeownership rate was low for Washington but less unusual among other United States cities. While owners lived in close to half of all occupied housing units in Seattle, 60 percent of occupied housing units were owner-occupied in King County 66 percent when Seattle is excluded as shown in the table below. In Washington state overall, 65 percent of occupied housing units were owner-occupied.
Homeownership rates in the other four Washington cities shown here, Bellevue, Spokane, Tacoma, and Vancouver, were higher than Seattle, ranging from 53 percent to 62 percent. Seattle's home-ownership rate was higher than three of the other United States cities shown below — Austin, Boston, and San Francisco. Seattle's rate was just 3 percentage points higher than Austin's but 16 percentage points higher than Boston's rate and 13 percentage points higher than San Francisco's.
The homeownership rates for the other cities ranged from 1 to 10 percentage points higher than Seattle's rate see table below. Nationwide, 66 percent of occupied housing units were owner-occupied.
Low vacancy rate confirmed by census. Census determined that there were , housing units in Seattle in ; 96 percent were occupied. Subtracting about 12, units that are for seasonal, recreational, or occasional use, the homeowner vacancy rate was 1.
Data is available from the U. Census Bureau at multiple geographic summary levels down to the block level. Puget Sound Region Population, Race, and Housing , including counties, cities, towns, and census tracts 66 pages. City of Seattle and 12 Sub-Areas.
Census Tracts in the City of Seattle. Reports and tables on detailed demographic data collected from the long-form sample sent to a sample of people and housing units nationwide. These data are weighted to represent the total population. Data are also included on the same topics covered on the short form of the census including age, sex, race and ethnicity. Census Bureau at multiple geographic summary levels down to the block group level.
To report census data for these neighborhood areas, the City uses different combinations of census tracts, block groups and blocks to best approximate the various neighborhoods and sub-areas of the City. Read about commonly-used Census Bureau geography including blocks, block groups, tracts, and places.
The data in this section contains census blocks, census block groups, census tracts, census places, census counties, and the state boundary from the Census Bureau. The data available on this page was downloaded from the Census Redistricting Data P. All census geographies reflect boundaries as of January 1, Additional GIS files and support products are available on the census redistricting data page.
Geography is a fundamental aspect of the census, providing the framework for the once-a-decade count of population and housing. Read about some of the key geography changes in the Kem C. Gardner Policy Institute's census geography blog and fact sheet. Comments, questions, compliments, or concerns can be directed to the staff from UGRC at ugrc utah. The Census Bureau creates different sized geographic areas to organize this demographic information, the smallest unit of area being a "census block" and the biggest being counties.
The data in this section contains census blocks, census block groups, census tracts, and counties. This dataset contains demographic information collected by the Census Bureau in for the census block, census block group, census tract, and county levels. Demographic population includes population counts, household counts, ethnicity counts, etc.
There are no constraints or warranties with regard to the use of this dataset. Summary File 3 and 4 focus on social, economic and housing characteristics compiled from a sample of approximately 19 million housing units about 1 in 6 households that received the Census long-form questionnaire.
Topics include income, education, occupation, ancestry, disability, foreign birth, commuting, household financial arrangements, year housing structure built and many other population and housing subjects. This dataset was created by UGRC using the original census blocks. The blocks were cut when necessary to only cover residential areas.
This was done using aerial imagery and is an approximation. Census Bureau Census data. Incorporated municipality populations were determined by the U. The first release from the Census Bureau was detailed population data by race and Hispanic origin for redistricting purposes.
The third major release, SF3, contains detailed social, economic, and housing data estimated from the results of the long Census form, which approximately one in six persons received. Directions on how to access Census data from the Census website via American FactFinder2 for county and tract level data for one of the four counties in the Capital Region are provided below. These same general directions can be applied to access data for other geographies such as minor civil divisions.
Below is a list of table IDs and names that supply the most frequently-requested from the Decennial Census and American Community Survey data.
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