Population 7,768 · Census ACS 2020–24
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Population and households in Castle Rock
Household size in Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 2.56 | 2.56 | 2.68 |
| 2010–14 | 2.50 | 2.62 | 2.73 |
| 2015–19 | 2.68 | 2.62 | 2.71 |
| 2020–24 | 2.57 | 2.61 | 2.65 |
| Change | +0.00 | +0.05 | −0.03 |
The average household in Castle Rock has 2.57 people, a bit under the U.S. average of 2.65. Washington as a whole looks much the same. The biggest households, usually families with children, are concentrated in the southeast.
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 Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 45.0 | 38.0 | 37.7 |
| 2010–14 | 45.7 | 38.7 | 38.6 |
| 2015–19 | 44.8 | 39.3 | 39.6 |
| 2020–24 | 47.2 | 39.6 | 40.1 |
| Change | +2.2 | +1.6 | +2.3 |
With a median age of 47.2, Castle Rock is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 45.0 in 2006–10, in line with the national trend. Residents skew youngest in the south and oldest in the west.
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 Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 9.1% | 10.9% | 12.3% |
| 2010–14 | 7.8% | 10.6% | 12.3% |
| 2015–19 | 8.7% | 10.1% | 11.6% |
| 2020–24 | 4.8% | 10.1% | 11.6% |
| Change | −4.4 pts | −0.8 pts | −0.6 pts |
Single-parent households are relatively rare in Castle Rock: 4.8% of households, against 11.6% nationally. Since 2006–10, the single-parent share has fallen 4.4 points, a much bigger shift than nationally. Of the 219 Washington cities with 5,000+ people, only 21 have a lower share of single-parent households.
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 Castle Rock
Renters in Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 17.8% | 35.2% | 33.3% |
| 2010–14 | 19.0% | 37.3% | 35.6% |
| 2015–19 | 20.5% | 37.0% | 36.0% |
| 2020–24 | 15.1% | 36.2% | 34.8% |
| Change | −2.7 pts | +1.0 pts | +1.5 pts |
Castle Rock is largely a place of homeowners: only 15.1% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 36.5% have no mortgage at all, below the national share of 39.8%. Since 2006–10, the renter share has fallen 2.7 points, even as the national share rose.
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 Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 12.0% | 9.2% | 11.4% |
| 2010–14 | 8.2% | 9.2% | 11.4% |
| 2015–19 | 7.6% | 8.2% | 11.1% |
| 2020–24 | 5.6% | 7.6% | 9.6% |
| Change | −6.4 pts | −1.6 pts | −1.8 pts |
Fewer homes sit empty in Castle Rock than nationally: 5.6%, against 9.6% for the U.S. Vacancy is down 6.4 points from 2006–10, a much bigger shift than nationally.
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 Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 1975 | 1977 | 1974 |
| 2010–14 | 1978 | 1979 | 1975 |
| 2015–19 | 1978 | 1980 | 1977 |
| 2020–24 | 1981 | 1984 | 1980 |
| Change | +6 | +6 | +6 |
The typical home in Castle Rock was built around 1981, about the same vintage as the country's housing overall (1980). The median year built has moved up from 1975 in 2006–10, a sign of steady new building. The newest homes are mostly in the northeast, the oldest in the center.
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 Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | $725 | $1,018 | $965 |
| 2010–14 | $809 | $1,127 | $1,040 |
| 2015–19 | $903 | $1,390 | $1,213 |
| 2020–24 | $1,234 | $1,875 | $1,571 |
| Change | +$508 | +$858 | +$606 |
The median renter in Castle Rock pays $1,234 a month for rent and utilities, well below the national median of $1,571. Rents are up $508 a month from 2006–10, a 70% jump, faster than rents rose nationally. Rent takes 23.2% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. The priciest rents are in the northeast; the most affordable are 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 Castle Rock
Bachelor's degrees in Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 12.3% | 31.0% | 28.4% |
| 2010–14 | 16.0% | 32.1% | 29.6% |
| 2015–19 | 15.9% | 35.5% | 32.1% |
| 2020–24 | 16.8% | 38.8% | 35.6% |
| Change | +4.5 pts | +7.8 pts | +7.2 pts |
College degrees are relatively uncommon in Castle Rock: 16.8% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree is up 4.5 points from 2006–10, mirroring the country. Of the 219 Washington cities with 5,000+ people, only 12 have a lower 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 Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 86.0% | 89.5% | 84.9% |
| 2010–14 | 88.2% | 90.0% | 86.1% |
| 2015–19 | 90.6% | 91.0% | 87.7% |
| 2020–24 | 92.4% | 91.9% | 89.3% |
| Change | +6.4 pts | +2.4 pts | +4.3 pts |
About nine in ten adults in Castle Rock have finished high school (92.4%), a bit above the national rate of 89.3%. That is in line with the rest of Washington. The share with a diploma is up 6.4 points from 2006–10, as it has nationally.
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 Castle Rock
| Period | Castle Rock | Washington | U.S. |
|---|---|---|---|
| 2006–10 | 9.8% | 7.6% | 8.1% |
| 2010–14 | 9.2% | 8.9% | 9.4% |
| 2015–19 | 5.1% | 5.1% | 5.6% |
| 2020–24 | 4.6% | 5.1% | 5.4% |
| Change | −5.2 pts | −2.5 pts | −2.7 pts |
Jobs have been a little easier to find in Castle Rock than nationally: unemployment was 4.6%, against 5.4%. Unemployment is down 5.2 points from 2006–10, as it has 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).
Castle Rock 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Castle Rock | 2.57 | 47.2 | 4.8% | 15.1% | 5.6% | 1981 | $1,234 | 16.8% | 92.4% | 4.6% |
| Silverlake | 2.80 | 48.8 | 9.1% | 11.0% | 9.3% | 1991 | $1,474 | 21.8% | 95.3% | 5.5% |
| Ostrander | 2.35 | 47.2 | 6.0% | 10.9% | 12.9% | 1983 | $1,420 | 18.3% | 94.7% | 1.2% |
| Eufaula Heights | 2.28 | 48.3 | 4.7% | 9.4% | 6.6% | 1990 | $1,578 | 16.7% | 98.6% | 9.1% |
| Vader | 3.08 | 41.1 | 11.6% | 10.0% | 7.6% | 1989 | $1,303 | 28.6% | 94.9% | 3.8% |
| Ryderwood | 2.37 | 51.5 | 1.7% | 12.3% | 3.3% | 1983 | $1,037 | 17.0% | 91.3% | 0.4% |
| Kelso | 2.68 | 41.8 | 12.4% | 32.3% | 5.0% | 1973 | $1,466 | 15.2% | 89.8% | 7.9% |
| Longview | 2.48 | 40.6 | 13.3% | 39.7% | 6.8% | 1968 | $1,450 | 16.0% | 89.3% | 6.3% |
| Sightly | 2.54 | 44.9 | 12.1% | 15.1% | 9.6% | 1985 | $968 | 26.2% | 91.8% | 2.7% |
| Toutle | 2.57 | 45.0 | 13.1% | 13.3% | 9.5% | 1987 | $859 | 27.9% | 93.7% | 3.0% |
| Toledo | 2.58 | 49.0 | 5.4% | 13.4% | 9.0% | 1986 | $856 | 22.6% | 93.0% | 5.5% |
All figures 2020–24.
Cities with similar populations: Terryville, CT · Atlantic Highlands, NJ · Willows, CA · August, CA · Aurora, IN · Ayden, NC · Williamsburg, OH · Barnwell, SC · Basehor, KS · Wiggins, MS
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 Castle Rock. 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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