Population 8,768 · Census ACS 2020–24
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Population and households in Millis
Household size in Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.65 | 2.54 | 2.53 | 2.68 |
| 2010–14 | 2.70 | 2.59 | 2.57 | 2.73 |
| 2015–19 | 2.63 | 2.60 | 2.57 | 2.71 |
| 2020–24 | 2.69 | 2.55 | 2.52 | 2.65 |
| Change | +0.04 | +0.01 | −0.01 | −0.03 |
Households in Millis average 2.69 people, about the same as the country as a whole (2.65). The typical household here is bigger than in the wider Boston area, where it has 2.55 people. Household size has crept up from 2.65 in 2006–10, even as the national average fell.
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 Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.5 | 38.9 | 39.4 | 37.7 |
| 2010–14 | 43.3 | 39.7 | 40.1 | 38.6 |
| 2015–19 | 45.3 | 40.4 | 41.0 | 39.6 |
| 2020–24 | 45.5 | 40.8 | 41.4 | 40.1 |
| Change | +3.9 | +1.9 | +2.0 | +2.3 |
Millis skews older: half of its residents are older than 45.5, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. The median age has climbed from 41.5 in 2006–10, as it has 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 Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.7% | 10.4% | 11.0% | 12.3% |
| 2010–14 | 6.7% | 10.2% | 11.0% | 12.3% |
| 2015–19 | 5.7% | 9.6% | 10.3% | 11.6% |
| 2020–24 | 5.5% | 9.7% | 10.6% | 11.6% |
| Change | −3.2 pts | −0.7 pts | −0.4 pts | −0.6 pts |
Single-parent households are relatively rare in Millis: 5.5% of households, against 11.6% nationally. Since 2006–10, the single-parent share has fallen 3.2 points, a much bigger shift than nationally. Millis has a lower share of single-parent households than the great majority of Massachusetts 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 Millis
Renters in Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 20.0% | 36.8% | 36.0% | 33.3% |
| 2010–14 | 22.7% | 38.5% | 37.7% | 35.6% |
| 2015–19 | 17.8% | 38.3% | 37.6% | 36.0% |
| 2020–24 | 16.9% | 38.4% | 37.5% | 34.8% |
| Change | −3.1 pts | +1.6 pts | +1.5 pts | +1.5 pts |
Only 16.9% of households in Millis rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Just over a third of owners (35.5%) have paid off their mortgages, below the national share of 39.8%. Rentals cluster in the center; owners are most common in the northwest. Since 2006–10, the renter share has fallen 3.1 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 Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.9% | 8.1% | 9.5% | 11.4% |
| 2010–14 | 0.9% | 7.4% | 9.1% | 11.4% |
| 2015–19 | 7.1% | 7.3% | 8.9% | 11.1% |
| 2020–24 | 4.9% | 6.7% | 7.9% | 9.6% |
| Change | −0.0 pts | −1.4 pts | −1.6 pts | −1.8 pts |
Empty homes are scarce in Millis: just 4.9% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Millis has a lower vacancy rate than most Massachusetts cities.
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 Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 1970 | 1958 | 1958 | 1974 |
| 2010–14 | 1972 | 1959 | 1959 | 1975 |
| 2015–19 | 1973 | 1961 | 1961 | 1977 |
| 2020–24 | 1972 | 1964 | 1963 | 1980 |
| Change | +2 | +6 | +5 | +6 |
Housing in Millis leans older: the median home dates to 1972, against 1980 nationally. Still, homes here are newer than in the Boston area overall, where the median home dates to 1964. The newest homes are mostly in the northwest, 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 Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | $964 | $1,171 | $1,085 | $965 |
| 2010–14 | $1,252 | $1,251 | $1,157 | $1,040 |
| 2015–19 | $1,703 | $1,537 | $1,398 | $1,213 |
| 2020–24 | $1,589 | $2,051 | $1,860 | $1,571 |
| Change | +$625 | +$881 | +$775 | +$606 |
A typical rental in Millis costs $1,589 a month with utilities, close to the national median of $1,571. Rents here are lower than in the wider Boston area ($2,051). Rent has climbed $625 a month since 2006–10, up 65%, roughly in step with the nation. The typical renter here spends 40.5% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
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 Millis
Bachelor's degrees in Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 45.2% | 42.2% | 38.5% | 28.4% |
| 2010–14 | 46.6% | 44.1% | 40.1% | 29.6% |
| 2015–19 | 52.8% | 48.2% | 43.6% | 32.1% |
| 2020–24 | 55.9% | 51.9% | 47.2% | 35.6% |
| Change | +10.7 pts | +9.7 pts | +8.7 pts | +7.2 pts |
Millis is highly educated: nearly six in ten adults 25 and older (55.9%) hold at least a bachelor's degree, far above the national share of 35.6%. Since 2006–10, the share with a degree has risen 10.7 points, as it has nationally. College graduates are most concentrated in the southwest and least in the northeast.
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 Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 96.0% | 89.8% | 88.4% | 84.9% |
| 2010–14 | 95.8% | 90.6% | 89.3% | 86.1% |
| 2015–19 | 97.4% | 91.5% | 90.5% | 87.7% |
| 2020–24 | 96.0% | 91.8% | 91.0% | 89.3% |
| Change | −0.0 pts | +2.1 pts | +2.6 pts | +4.3 pts |
High school completion is high in Millis: 96.0% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma has barely moved since 2006–10, while the national rate rose.
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 Millis
| Period | Millis | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.3% | 7.0% | 7.5% | 8.1% |
| 2010–14 | 7.6% | 8.0% | 8.7% | 9.4% |
| 2015–19 | 2.5% | 4.6% | 5.0% | 5.6% |
| 2020–24 | 4.5% | 4.9% | 5.2% | 5.4% |
| Change | −4.8 pts | −2.1 pts | −2.3 pts | −2.7 pts |
Unemployment in Millis runs below the national rate: 4.5% of the labor force was out of work and looking, against 5.4% nationally. Unemployment is down 4.8 points from 2006–10, in line with the national trend. 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).
Millis 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Millis | 2.69 | 45.5 | 5.5% | 16.9% | 4.9% | 1972 | $1,589 | 55.9% | 96.0% | 4.5% |
| Harding | 2.54 | 57.0 | 1.2% | 7.4% | 11.0% | 1981 | $1,349 | 52.7% | 88.8% | 2.4% |
| Medfield | 2.79 | 44.3 | 4.8% | 14.0% | 4.0% | 1970 | $1,980 | 77.7% | 97.4% | 4.2% |
| Medway | 2.82 | 42.0 | 5.2% | 14.0% | 1.2% | 1975 | $1,573 | 62.8% | 96.0% | 3.8% |
| Norfolk | 2.94 | 43.0 | 3.3% | 5.1% | 3.5% | 1981 | $1,931 | 68.3% | 96.4% | 4.6% |
| Holliston | 2.70 | 45.5 | 3.1% | 12.5% | 5.4% | 1970 | $1,631 | 66.1% | 96.7% | 4.3% |
| Sherborn | 2.91 | 43.0 | 1.8% | 10.5% | 6.2% | 1969 | $2,474 | 82.3% | 99.6% | 4.6% |
| Franklin Town | 2.64 | 40.9 | 8.9% | 21.8% | 6.5% | 1978 | $1,888 | 58.4% | 97.8% | 5.2% |
| Walpole | 2.79 | 41.7 | 5.6% | 15.9% | 5.6% | 1979 | $1,820 | 67.4% | 98.2% | 5.3% |
| South Walpole | 3.31 | 37.1 | 2.2% | 16.0% | 2.5% | 1978 | $1,445 | 67.9% | 96.9% | 4.9% |
| Dover | 3.08 | 44.7 | 5.9% | 2.1% | 5.4% | 1972 | $3,065 | 84.9% | 97.2% | 7.0% |
All figures 2020–24.
Cities with similar populations: Rumford, RI · Richmond, MO · Ridgeway, VA · Robertsville, NJ · Rochester, PA · Rockdale, TX · Rockville, CT · Rockwood, VA · Roebuck, SC · Roosevelt, UT
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 Millis. 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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