Population 14,062 · Census ACS 2020–24
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Population and households in Newcastle
Household size in Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.54 | 2.52 | 2.56 | 2.68 |
| 2010–14 | 2.56 | 2.59 | 2.62 | 2.73 |
| 2015–19 | 2.57 | 2.62 | 2.62 | 2.71 |
| 2020–24 | 2.46 | 2.60 | 2.61 | 2.65 |
| Change | −0.08 | +0.09 | +0.05 | −0.03 |
Households in Newcastle run small, averaging 2.46 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has edged down from 2.54, as it has nationally. Households are largest in the center and smallest in the north.
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 Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.3 | 37.5 | 38.0 | 37.7 |
| 2010–14 | 39.4 | 38.1 | 38.7 | 38.6 |
| 2015–19 | 39.5 | 38.5 | 39.3 | 39.6 |
| 2020–24 | 38.2 | 38.8 | 39.6 | 40.1 |
| Change | −0.1 | +1.3 | +1.6 | +2.3 |
The median resident of Newcastle is 38.2 years old, a few years younger than the national median of 40.1. The Seattle area as a whole looks much the same. The youngest areas are in the northeast, the oldest in the southwest.
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 Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.5% | 10.3% | 10.9% | 12.3% |
| 2010–14 | 5.1% | 10.0% | 10.6% | 12.3% |
| 2015–19 | 5.6% | 9.2% | 10.1% | 11.6% |
| 2020–24 | 5.1% | 9.1% | 10.1% | 11.6% |
| Change | −0.4 pts | −1.2 pts | −0.8 pts | −0.6 pts |
Single-parent households are relatively rare in Newcastle: 5.1% of households, against 11.6% nationally. Newcastle has a lower share of single-parent households than the great majority of Washington cities.
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 Newcastle
Renters in Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 23.2% | 37.7% | 35.2% | 33.3% |
| 2010–14 | 27.2% | 40.0% | 37.3% | 35.6% |
| 2015–19 | 23.6% | 39.9% | 37.0% | 36.0% |
| 2020–24 | 38.2% | 40.0% | 36.2% | 34.8% |
| Change | +15.0 pts | +2.3 pts | +1.0 pts | +1.5 pts |
Renting is a bit more common in Newcastle than nationally: 38.2% of households rent their homes, against 34.8% for the U.S. Among owners, 41.3% have paid off their mortgages, about the same as nationally. The renter share is up 15.0 points from 2006–10, a much bigger shift than nationally.
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 Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.9% | 7.9% | 9.2% | 11.4% |
| 2010–14 | 2.7% | 7.8% | 9.2% | 11.4% |
| 2015–19 | 4.5% | 6.8% | 8.2% | 11.1% |
| 2020–24 | 6.6% | 6.6% | 7.6% | 9.6% |
| Change | +1.7 pts | −1.3 pts | −1.6 pts | −1.8 pts |
Vacancy is on the low side in Newcastle: 6.6% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. That is in line with the rest of the Seattle area. Vacancy has risen 1.7 points since 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 Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 1993 | 1977 | 1977 | 1974 |
| 2010–14 | 1992 | 1978 | 1979 | 1975 |
| 2015–19 | 1993 | 1980 | 1980 | 1977 |
| 2020–24 | 2001 | 1983 | 1984 | 1980 |
| Change | +8 | +7 | +6 | +6 |
Much of the housing in Newcastle is relatively new: half of its homes were built after 2001, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1993 in 2006–10, a sign of steady new building. Newer construction is concentrated in the northeast, while the southwest has the oldest housing. Only ten of the 219 Washington cities with 5,000+ people have 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 Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,574 | $1,162 | $1,018 | $965 |
| 2010–14 | $1,575 | $1,284 | $1,127 | $1,040 |
| 2015–19 | $1,945 | $1,644 | $1,390 | $1,213 |
| 2020–24 | $2,677 | $2,193 | $1,875 | $1,571 |
| Change | +$1,103 | +$1,031 | +$858 | +$606 |
A typical rental in Newcastle costs $2,677 a month with utilities, well above the national median of $1,571. Rents are up $1,103 a month from 2006–10, a 70% jump, faster than rents rose nationally. Rent takes 27.0% of the typical renter's income, just under the 30% mark often used to define affordable rent. The priciest rents are in the southwest; the most affordable are in the southeast.
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 Newcastle
Bachelor's degrees in Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 63.4% | 36.7% | 31.0% | 28.4% |
| 2010–14 | 63.4% | 38.0% | 32.1% | 29.6% |
| 2015–19 | 69.1% | 42.3% | 35.5% | 32.1% |
| 2020–24 | 67.7% | 46.3% | 38.8% | 35.6% |
| Change | +4.3 pts | +9.6 pts | +7.8 pts | +7.2 pts |
College graduates are unusually common in Newcastle: 67.7% 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 4.3 points, mirroring the country. Of the 219 Washington cities with 5,000+ people, only ten have 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 Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 97.7% | 91.3% | 89.5% | 84.9% |
| 2010–14 | 98.5% | 91.6% | 90.0% | 86.1% |
| 2015–19 | 97.9% | 92.5% | 91.0% | 87.7% |
| 2020–24 | 97.8% | 93.1% | 91.9% | 89.3% |
| Change | +0.1 pts | +1.8 pts | +2.4 pts | +4.3 pts |
Finishing high school is nearly universal in Newcastle: 97.8% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Of the 219 Washington cities with 5,000+ people, only ten have a higher share of high school graduates.
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 Newcastle
| Period | Newcastle | Seattle area | Washington | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.2% | 6.9% | 7.6% | 8.1% |
| 2010–14 | 4.8% | 8.3% | 8.9% | 9.4% |
| 2015–19 | 3.7% | 4.5% | 5.1% | 5.6% |
| 2020–24 | 5.4% | 5.0% | 5.1% | 5.4% |
| Change | −0.8 pts | −2.0 pts | −2.5 pts | −2.7 pts |
At 5.4%, unemployment in Newcastle is the same as the national rate. Since 2006–10, unemployment has edged down 0.8 points, a smaller shift than nationally. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
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).
Newcastle compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Newcastle | 2.46 | 38.2 | 5.1% | 38.2% | 6.6% | 2001 | $2,677 | 67.7% | 97.8% | 5.4% |
| Mercer Island | 2.61 | 46.8 | 4.7% | 32.9% | 5.5% | 1972 | $3,033 | 81.9% | 98.4% | 2.9% |
| East Renton Highlands | 3.10 | 39.3 | 6.1% | 12.0% | 3.3% | 1988 | $2,818 | 51.2% | 93.7% | 5.3% |
| Renton | 2.65 | 38.3 | 11.2% | 45.9% | 6.3% | 1984 | $2,243 | 38.2% | 88.5% | 5.0% |
| Beaux Arts Village | 3.16 | 38.4 | 5.0% | 1.5% | 1.1% | 1988 | $3,501 | 93.4% | 100.0% | 6.9% |
| Bryn Mawr-Skyway | 2.81 | 40.7 | 14.2% | 42.7% | 8.1% | 1971 | $2,050 | 34.5% | 87.1% | 7.0% |
| Bellevue | 2.52 | 39.7 | 6.1% | 48.4% | 6.7% | 1982 | $2,794 | 72.0% | 95.5% | 4.2% |
| Fairwood | 2.62 | 41.0 | 8.3% | 24.6% | 5.9% | 1982 | $2,522 | 49.6% | 95.2% | 4.9% |
| Issaquah | 2.51 | 40.5 | 6.7% | 37.2% | 5.3% | 1997 | $2,722 | 70.6% | 97.8% | 3.9% |
| Tukwila | 2.66 | 34.9 | 12.8% | 59.3% | 6.7% | 1982 | $1,958 | 30.4% | 82.4% | 7.7% |
| Boulevard Park | 2.93 | 31.1 | 23.0% | 53.2% | 14.7% | 1973 | $1,952 | 21.6% | 77.2% | 5.4% |
All figures 2020–24.
Cities with similar populations: University Heights, OH · Columbia, MS · Conneaut, OH · Coopersburg, PA · Corona Del Mar, CA · Cortez, CO · Cottonwood, CA · Covington, TN · Tecumseh, MI · Troy, IL
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 Newcastle. 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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