Population 3,756 · Census ACS 2020–24
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Population and households in Knox County
Household size in Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 2.30 | 2.49 | 2.68 |
| 2010–14 | 2.37 | 2.52 | 2.73 |
| 2015–19 | 2.60 | 2.50 | 2.71 |
| 2020–24 | 2.89 | 2.49 | 2.65 |
| Change | +0.59 | −0.00 | −0.03 |
The typical household in Knox County holds 2.89 people, more than the U.S. average of 2.65. Since 2006–10, household size has climbed from 2.30, but in a place this small, much of that may be survey noise rather than real change. Only three of Missouri's 115 counties have larger households.
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 Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 43.7 | 38.4 | 37.7 |
| 2010–14 | 44.1 | 39.2 | 38.6 |
| 2015–19 | 43.4 | 40.0 | 39.6 |
| 2020–24 | 42.4 | 40.1 | 40.1 |
| Change | −1.3 | +1.7 | +2.3 |
Knox County skews a little older than the country: its median age is 42.4, against 40.1 nationally.
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 Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 7.3% | 11.3% | 12.3% |
| 2010–14 | 11.4% | 11.4% | 12.3% |
| 2015–19 | 8.2% | 10.9% | 11.6% |
| 2020–24 | 8.3% | 11.0% | 11.6% |
| Change | +0.9 pts | −0.3 pts | −0.6 pts |
Single-parent households are relatively rare in Knox County: 8.3% of households, against 11.6% nationally. Compared with other Missouri counties, Knox County has a lower share of single-parent households than most.
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 Knox County
Renters in Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 25.1% | 30.0% | 33.3% |
| 2010–14 | 25.3% | 32.1% | 35.6% |
| 2015–19 | 17.4% | 33.2% | 36.0% |
| 2020–24 | 14.9% | 31.9% | 34.8% |
| Change | −10.2 pts | +1.9 pts | +1.5 pts |
Only 14.9% of households in Knox County rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Nearly six in ten owners (57.8%) have paid off their mortgages, well above the national share of 39.8%. Only one other Missouri county has a lower 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 Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 26.9% | 11.6% | 11.4% |
| 2010–14 | 23.5% | 12.0% | 11.4% |
| 2015–19 | 34.1% | 12.2% | 11.1% |
| 2020–24 | 33.8% | 10.5% | 9.6% |
| Change | +6.9 pts | −1.1 pts | −1.8 pts |
Vacancy is high in Knox County: 33.8% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Only one other Missouri county has a higher vacancy rate.
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 Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 1958 | 1974 | 1974 |
| 2010–14 | 1963 | 1975 | 1975 |
| 2015–19 | 1961 | 1976 | 1977 |
| 2020–24 | 1965 | 1978 | 1980 |
| Change | +7 | +4 | +6 |
Knox County is a place of older homes: half were built before 1965, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Of Missouri's 115 counties, only eight have older 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 Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | $465 | $740 | $965 |
| 2010–14 | $510 | $816 | $1,040 |
| 2015–19 | $583 | $899 | $1,213 |
| 2020–24 | $666 | $1,122 | $1,571 |
| Change | +$200 | +$383 | +$606 |
The median renter in Knox County pays $666 a month for rent and utilities, well below the national median of $1,571. Rent takes 21.0% 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 Knox County
Bachelor's degrees in Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 13.6% | 26.0% | 28.4% |
| 2010–14 | 13.3% | 27.3% | 29.6% |
| 2015–19 | 16.6% | 29.6% | 32.1% |
| 2020–24 | 15.8% | 32.6% | 35.6% |
| Change | +2.2 pts | +6.6 pts | +7.2 pts |
Fewer adults in Knox County have a four-year degree than in the country as a whole: 15.8%, against 35.6% nationally. Knox County has a lower share of college graduates than most Missouri counties.
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 Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 86.6% | 86.8% | 84.9% |
| 2010–14 | 85.1% | 88.3% | 86.1% |
| 2015–19 | 86.4% | 90.0% | 87.7% |
| 2020–24 | 80.9% | 91.8% | 89.3% |
| Change | −5.7 pts | +5.1 pts | +4.3 pts |
Nearly one in five adults in Knox County never finished high school, well above the national share: only 80.9% have a diploma or equivalent, against 89.3% nationally. Of Missouri's 115 counties, only two have a lower 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 Knox County
| Period | Knox County | Missouri | U.S. |
|---|---|---|---|
| 2006–10 | 4.2% | 7.4% | 8.1% |
| 2010–14 | 6.5% | 8.4% | 9.4% |
| 2015–19 | 6.8% | 4.6% | 5.6% |
| 2020–24 | 1.1% | 4.1% | 5.4% |
| Change | −3.1 pts | −3.3 pts | −2.7 pts |
The job market in Knox County has been strong: just 1.1% of the labor force was out of work and looking, well below the national rate of 5.4%. Only one other Missouri county has lower unemployment. 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).
Knox County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Knox County | 2.89 | 42.4 | 8.3% | 14.9% | 33.8% | 1965 | $666 | 15.8% | 80.9% | 1.1% |
| Adair County | 2.89 | 35.1 | 8.2% | 39.0% | 19.8% | 1973 | $803 | 40.6% | 94.2% | 3.7% |
| Lewis County | 2.88 | 37.4 | 4.9% | 23.7% | 25.9% | 1970 | $673 | 17.7% | 87.7% | 7.3% |
| Sullivan County | 2.86 | 43.4 | 9.5% | 24.9% | 31.9% | 1968 | $650 | 15.5% | 88.8% | 2.1% |
| Grundy County | 2.48 | 40.9 | 7.0% | 30.3% | 19.7% | 1962 | $792 | 16.6% | 86.8% | 2.9% |
| Schuyler County | 2.16 | 47.8 | 10.2% | 20.6% | 18.8% | 1971 | $876 | 19.1% | 93.1% | 4.8% |
| Mason County | 2.22 | 44.8 | 9.7% | 18.2% | 13.5% | 1959 | $780 | 17.3% | 93.0% | 4.7% |
| Gentry County | 2.55 | 40.3 | 6.2% | 25.6% | 17.1% | 1971 | $658 | 21.4% | 89.0% | 2.3% |
| Logan County | 2.23 | 41.8 | 11.9% | 31.5% | 6.7% | 1963 | $825 | 21.3% | 93.0% | 4.0% |
| Holt County | 2.36 | 48.7 | 10.4% | 22.8% | 22.7% | 1961 | $655 | 19.1% | 92.7% | 2.2% |
| De Witt County | 2.33 | 44.1 | 8.8% | 21.5% | 9.5% | 1961 | $798 | 23.0% | 93.4% | 4.3% |
All figures 2020–24.
Counties with similar populations: Oliver County, ND · McLean County, KY · McLean County, ND · McMullen County, TX · McPherson County, NE · Meade County, KS · Meagher County, MT · Meigs County, TN · Mellette County, SD · Menard County, 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 Knox County. 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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