Population 6,894 · Census ACS 2020–24
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Population and households in Interlake
Household size in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 2.41 | 2.38 | 2.52 | 2.56 | 2.68 |
| 2010–14 | 2.54 | 2.50 | 2.59 | 2.62 | 2.73 |
| 2015–19 | 2.39 | 2.53 | 2.62 | 2.62 | 2.71 |
| 2020–24 | 2.12 | 2.52 | 2.60 | 2.61 | 2.65 |
| Change | −0.29 | +0.14 | +0.09 | +0.05 | −0.03 |
Households in Interlake are small: just 2.12 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Household size has dropped from 2.41 in 2006–10, a much bigger shift than nationally. Interlake has the smallest households of any Bellevue neighborhood.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 44.8 | 39.6 | 37.5 | 38.0 | 37.7 |
| 2010–14 | 40.5 | 39.4 | 38.1 | 38.7 | 38.6 |
| 2015–19 | 37.1 | 39.3 | 38.5 | 39.3 | 39.6 |
| 2020–24 | 38.6 | 39.7 | 38.8 | 39.6 | 40.1 |
| Change | −6.2 | +0.1 | +1.3 | +1.6 | +2.3 |
At 38.6, the median age in Interlake is close to the national median of 40.1, so its age mix looks much like the country's. Since 2006–10, the median age has dropped from 44.8, even as the national median rose. Residents skew youngest in the southeast and oldest in the northeast.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 6.5% | 6.4% | 10.3% | 10.9% | 12.3% |
| 2010–14 | 3.7% | 6.9% | 10.0% | 10.6% | 12.3% |
| 2015–19 | 5.3% | 6.0% | 9.2% | 10.1% | 11.6% |
| 2020–24 | 4.9% | 6.1% | 9.1% | 10.1% | 11.6% |
| Change | −1.5 pts | −0.3 pts | −1.2 pts | −0.8 pts | −0.6 pts |
Single-parent households are relatively rare in Interlake: 4.9% of households, against 11.6% nationally. The single-parent share has fallen 1.5 points since 2006–10, as it has nationally.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Interlake
Renters in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 40.0% | 41.2% | 37.7% | 35.2% | 33.3% |
| 2010–14 | 39.7% | 43.8% | 40.0% | 37.3% | 35.6% |
| 2015–19 | 53.0% | 46.1% | 39.9% | 37.0% | 36.0% |
| 2020–24 | 69.5% | 48.4% | 40.0% | 36.2% | 34.8% |
| Change | +29.5 pts | +7.2 pts | +2.3 pts | +1.0 pts | +1.5 pts |
Most households in Interlake rent: 69.5% of occupied homes are rented, far above the national share of 34.8%. Expect more apartments, and more turnover, than in owner-heavy areas. The renter share is up 29.5 points from 2006–10, a much bigger shift than nationally. Only one other Bellevue neighborhood has a higher share of renters.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 4.9% | 7.5% | 7.9% | 9.2% | 11.4% |
| 2010–14 | 7.7% | 8.0% | 7.8% | 9.2% | 11.4% |
| 2015–19 | 5.8% | 7.5% | 6.8% | 8.2% | 11.1% |
| 2020–24 | 8.2% | 6.7% | 6.6% | 7.6% | 9.6% |
| Change | +3.3 pts | −0.7 pts | −1.3 pts | −1.6 pts | −1.8 pts |
Vacancy in Interlake is close to the national rate: 8.2% of homes are empty, against 9.6%. Vacancy is up 3.3 points from 2006–10, even as the national rate fell.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 1977 | 1977 | 1977 | 1977 | 1974 |
| 2010–14 | 1977 | 1977 | 1978 | 1979 | 1975 |
| 2015–19 | 1989 | 1979 | 1980 | 1980 | 1977 |
| 2020–24 | 1997 | 1982 | 1983 | 1984 | 1980 |
| Change | +20 | +5 | +7 | +6 | +6 |
Interlake has newer housing than the country as a whole: the median home was built in 1997, versus 1980 nationally. The median year built has moved up from 1977 in 2006–10, a sign of steady new building. The newest homes are mostly in the south, the oldest in the north. No other Bellevue neighborhood has newer homes.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | $1,549 | $1,440 | $1,162 | $1,018 | $965 |
| 2010–14 | $1,618 | $1,590 | $1,284 | $1,127 | $1,040 |
| 2015–19 | $2,348 | $2,189 | $1,644 | $1,390 | $1,213 |
| 2020–24 | $2,818 | $2,794 | $2,193 | $1,875 | $1,571 |
| Change | +$1,269 | +$1,354 | +$1,031 | +$858 | +$606 |
A typical rental in Interlake costs $2,818 a month with utilities, well above the national median of $1,571. Rents are up $1,269 a month from 2006–10, an 82% jump, faster than rents rose nationally. Rent takes 27.2% of the typical renter's income, just under the 30% mark often used to define affordable rent. Rents run highest in the northeast and lowest in the west.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Interlake
Bachelor's degrees in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 60.2% | 60.2% | 36.7% | 31.0% | 28.4% |
| 2010–14 | 54.5% | 61.6% | 38.0% | 32.1% | 29.6% |
| 2015–19 | 66.1% | 68.5% | 42.3% | 35.5% | 32.1% |
| 2020–24 | 78.2% | 72.0% | 46.3% | 38.8% | 35.6% |
| Change | +18.0 pts | +11.8 pts | +9.6 pts | +7.8 pts | +7.2 pts |
College graduates are unusually common in Interlake: 78.2% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby. Since 2006–10, the share with a degree has risen 18.0 points, mirroring the country. No other Bellevue neighborhood has a higher share of college graduates.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 95.1% | 95.8% | 91.3% | 89.5% | 84.9% |
| 2010–14 | 93.2% | 95.5% | 91.6% | 90.0% | 86.1% |
| 2015–19 | 96.6% | 95.4% | 92.5% | 91.0% | 87.7% |
| 2020–24 | 95.3% | 95.5% | 93.1% | 91.9% | 89.3% |
| Change | +0.2 pts | −0.3 pts | +1.8 pts | +2.4 pts | +4.3 pts |
High school completion is high in Interlake: 95.3% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. That is in line with the rest of Bellevue.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Interlake
| Period | Interlake | Bellevue | Seattle area | Washington | U.S. |
|---|---|---|---|---|---|
| 2006–10 | 2.0% | 5.1% | 6.9% | 7.6% | 8.1% |
| 2010–14 | 6.9% | 6.8% | 8.3% | 8.9% | 9.4% |
| 2015–19 | 4.2% | 3.5% | 4.5% | 5.1% | 5.6% |
| 2020–24 | 5.0% | 4.2% | 5.0% | 5.1% | 5.4% |
| Change | +3.0 pts | −0.9 pts | −2.0 pts | −2.5 pts | −2.7 pts |
At 5.0%, unemployment in Interlake is close to the national rate of 5.4%. The rate is higher than in Bellevue overall (4.2%). Since 2006–10, unemployment has risen 3.0 points, even as the national rate fell.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Interlake compared with nearby neighborhoods
| Neighborhood | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Interlake | 2.12 | 38.6 | 4.9% | 69.5% | 8.2% | 1997 | $2,818 | 78.2% | 95.3% | 5.0% |
| Overlake | 2.22 | 34.0 | 6.2% | 71.8% | 8.2% | 1993 | $2,526 | 76.5% | 94.5% | 3.9% |
| Crossroads | 2.75 | 44.2 | 11.1% | 51.0% | 12.8% | 1978 | $2,283 | 52.0% | 85.5% | 5.2% |
| Idylwood | 2.82 | 44.2 | 3.3% | 12.5% | 4.9% | 1973 | $2,503 | 75.1% | 98.2% | 8.7% |
| Tam O'shanter | 2.99 | 45.7 | 2.9% | 15.9% | 6.6% | 1969 | $3,161 | 68.0% | 97.2% | 5.5% |
| Bridle Trails | 2.47 | 38.8 | 5.1% | 51.0% | 3.6% | 1978 | $2,509 | 74.9% | 98.0% | 3.2% |
| Lake Hills | 2.80 | 37.2 | 14.0% | 44.2% | 7.5% | 1969 | $2,599 | 63.0% | 92.6% | 3.6% |
| Southeast Redmond | 2.52 | 33.1 | 4.4% | 74.8% | 9.6% | 1993 | $2,575 | 78.7% | 97.2% | 5.4% |
| Grass Lawn | 2.58 | 38.0 | 5.5% | 36.5% | 6.2% | 1979 | $2,821 | 72.7% | 97.6% | 2.6% |
| Wilburton | 2.46 | 40.0 | 5.2% | 45.4% | 8.8% | 1980 | $2,553 | 67.4% | 94.4% | 5.8% |
| Downtown Redmond | 1.75 | 31.7 | 4.8% | 92.9% | 7.1% | 2008 | $2,273 | 75.0% | 98.3% | 5.2% |
All figures 2020–24.
Neighborhoods with similar populations: Buffalo Charles, Detroit, MI · Culebra Park, San Antonio, TX · Corbett, Tucson, AZ · Columbia Heights, San Antonio, TX · Brookland, Washington, DC · Briarcliffe, Glenolden, PA · Birchwood, Bellingham, WA · Bandini, Commerce, CA · Rocky Ridge, Aurora, CO · Salt Springs, Syracuse, NY
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Interlake. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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