Population 252 · Census ACS 2020–24
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Median age by neighborhoodHistory and comparison ↓︎
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Population and households in Cornwall
Household size in Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 2.45 | 2.72 | 2.68 |
| 2010–14 | 2.92 | 2.78 | 2.73 |
| 2015–19 | 1.95 | 2.76 | 2.71 |
| 2020–24 | 2.41 | 2.79 | 2.65 |
| Change | −0.03 | +0.07 | −0.03 |
Households in Cornwall run small, averaging 2.41 people against 2.65 nationally, which usually means more singles and couples and fewer children.
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 Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 48.6 | 35.5 | 37.7 |
| 2010–14 | 38.2 | 36.6 | 38.6 |
| 2015–19 | 53.9 | 37.6 | 39.6 |
| 2020–24 | 51.9 | 38.2 | 40.1 |
| Change | +3.3 | +2.7 | +2.3 |
With a median age of 51.9, Cornwall is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Since 2006–10, the median age has climbed from 48.6, but in a place this small, survey estimates can swing a lot from one release to the next.
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 Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 5.1% | 10.0% | 12.3% |
| 2010–14 | 8.1% | 10.2% | 12.3% |
| 2015–19 | 2.8% | 9.3% | 11.6% |
| 2020–24 | 3.2% | 9.3% | 11.6% |
| Change | −2.0 pts | −0.7 pts | −0.6 pts |
Single-parent households are relatively rare in Cornwall: 3.2% of households, against 11.6% 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 Cornwall
Renters in Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 18.4% | 29.0% | 33.3% |
| 2010–14 | 17.4% | 30.8% | 35.6% |
| 2015–19 | 21.4% | 30.0% | 36.0% |
| 2020–24 | 6.8% | 27.9% | 34.8% |
| Change | −11.5 pts | −1.1 pts | +1.5 pts |
Only 6.8% of households in Cornwall rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About four in ten owners (41.1%) have paid off their mortgages, about the same as 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 Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 9.7% | 10.4% | 11.4% |
| 2010–14 | 5.5% | 11.0% | 11.4% |
| 2015–19 | 5.4% | 10.5% | 11.1% |
| 2020–24 | 9.6% | 9.3% | 9.6% |
| Change | −0.1 pts | −1.1 pts | −1.8 pts |
Just as many homes sit empty in Cornwall as nationally: 9.6%.
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 Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 1975 | 1982 | 1974 |
| 2010–14 | 1978 | 1984 | 1975 |
| 2015–19 | 1972 | 1986 | 1977 |
| 2020–24 | 1972 | 1989 | 1980 |
| Change | −3 | +7 | +6 |
Housing in Cornwall leans older: the median home dates to 1972, against 1980 nationally.
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 Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | $813 | $766 | $965 |
| 2010–14 | $870 | $820 | $1,040 |
| 2015–19 | $743 | $941 | $1,213 |
| 2020–24 | $938 | $1,407 | $1,571 |
| Change | +$125 | +$641 | +$606 |
A typical rental in Cornwall costs $938 a month with utilities, well below the national median of $1,571. Rent takes 26.0% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent.
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 Cornwall
Bachelor's degrees in Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 30.7% | 25.0% | 28.4% |
| 2010–14 | 22.9% | 25.9% | 29.6% |
| 2015–19 | 29.3% | 27.8% | 32.1% |
| 2020–24 | 45.9% | 31.7% | 35.6% |
| Change | +15.1 pts | +6.6 pts | +7.2 pts |
Cornwall is highly educated: more than four in ten adults 25 and older (45.9%) hold at least a bachelor's degree, far above the national share of 35.6%.
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 Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 92.7% | 88.7% | 84.9% |
| 2010–14 | 94.1% | 89.3% | 86.1% |
| 2015–19 | 97.7% | 90.8% | 87.7% |
| 2020–24 | 98.0% | 92.1% | 89.3% |
| Change | +5.2 pts | +3.4 pts | +4.3 pts |
Finishing high school is nearly universal in Cornwall: 98.0% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.
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 Cornwall
| Period | Cornwall | Idaho | U.S. |
|---|---|---|---|
| 2006–10 | 6.1% | 7.0% | 8.1% |
| 2010–14 | 4.6% | 8.1% | 9.4% |
| 2015–19 | 2.4% | 4.4% | 5.6% |
| 2020–24 | 1.5% | 3.8% | 5.4% |
| Change | −4.6 pts | −3.2 pts | −2.7 pts |
The job market in Cornwall has been strong: just 1.5% of the labor force was out of work and looking, well below the national rate of 5.4%. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current 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).
Cornwall 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Cornwall | 2.41 | 51.9 | 3.2% | 6.8% | 9.6% | 1972 | $938 | 45.9% | 98.0% | 1.5% |
| Troy | 2.48 | 50.1 | 2.5% | 10.7% | 6.8% | 1975 | $993 | 37.6% | 98.0% | 2.7% |
| Moscow | 2.31 | 32.1 | 9.4% | 53.5% | 9.8% | 1982 | $979 | 49.0% | 96.1% | 7.4% |
| Kendrick | 2.36 | 51.5 | 2.7% | 18.3% | 11.5% | 1979 | $929 | 24.2% | 94.4% | 2.5% |
| Juliaetta | 2.09 | 49.2 | 8.1% | 31.0% | 10.2% | 1970 | $675 | 21.7% | 94.3% | 2.5% |
| Genesee | 2.60 | 37.5 | 7.8% | 13.7% | 5.0% | 1972 | $1,146 | 42.2% | 97.1% | 2.6% |
| Leland | 3.18 | 42.5 | 4.5% | 5.5% | 26.2% | 1988 | $979 | 18.1% | 96.3% | 0.3% |
| Deary | 2.25 | 46.3 | 2.1% | 10.8% | 9.3% | 1977 | $1,167 | 28.7% | 94.7% | 0.6% |
| Viola | 2.70 | 50.4 | 3.2% | 1.6% | 7.7% | 1996 | $701 | 41.9% | 99.3% | 1.9% |
| Princeton | 2.65 | 47.8 | 3.3% | 3.3% | 18.6% | 1982 | $694 | 27.0% | 97.2% | 7.6% |
| Linden | 2.24 | 50.2 | 3.6% | 9.6% | 12.5% | 1979 | $968 | 24.8% | 94.5% | 2.1% |
All figures 2020–24.
Cities with similar populations: Briscoe, TX · Walker, KS · Walker, AR · Wabbaseka, AR · Upper Gloucester, ME · Teasdale, UT · Talleyrand, IA · Calcis, AL · Burrs Mills, NY · Burney, IN
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 Cornwall. 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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