Population 18,660 · Census ACS 2020–24
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Median age by neighborhoodHistory and comparison ↓︎
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Population and households in Mount Joy
Household size in Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 2.44 | 2.51 | 2.68 |
| 2010–14 | 2.45 | 2.53 | 2.73 |
| 2015–19 | 2.42 | 2.50 | 2.71 |
| 2020–24 | 2.36 | 2.46 | 2.65 |
| Change | −0.08 | −0.05 | −0.03 |
Households in Mount Joy are small: just 2.36 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Since 2006–10, household size has edged down from 2.44, mirroring the country.
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 Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 38.8 | 40.3 | 37.7 |
| 2010–14 | 40.4 | 41.0 | 38.6 |
| 2015–19 | 43.4 | 41.8 | 39.6 |
| 2020–24 | 44.4 | 42.0 | 40.1 |
| Change | +5.5 | +1.7 | +2.3 |
Mount Joy skews older: half of its residents are older than 44.4, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. Since 2006–10, the median age has climbed from 38.8, mirroring the country.
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 Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 7.7% | 10.5% | 12.3% |
| 2010–14 | 8.8% | 10.6% | 12.3% |
| 2015–19 | 7.4% | 10.5% | 11.6% |
| 2020–24 | 8.8% | 10.7% | 11.6% |
| Change | +1.1 pts | +0.2 pts | −0.6 pts |
Single parents head about one in twelve households in Mount Joy (8.8%), below the national share of 11.6%. The single-parent share is up 1.1 points from 2006–10, even as the national share fell.
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 Mount Joy
Renters in Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 29.7% | 29.0% | 33.3% |
| 2010–14 | 29.9% | 30.5% | 35.6% |
| 2015–19 | 30.1% | 31.1% | 36.0% |
| 2020–24 | 28.9% | 30.7% | 34.8% |
| Change | −0.8 pts | +1.7 pts | +1.5 pts |
Most households in Mount Joy own their homes; 28.9% rent, a little below the national share of 34.8%. Among homeowners, 37.2% have no mortgage at all, about the same as nationally. Rentals cluster in the northwest; owners are most common in the southeast. The renter share has edged down 0.8 points since 2006–10, 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 Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 6.7% | 10.3% | 11.4% |
| 2010–14 | 8.1% | 10.5% | 11.4% |
| 2015–19 | 4.5% | 10.7% | 11.1% |
| 2020–24 | 4.4% | 9.1% | 9.6% |
| Change | −2.3 pts | −1.2 pts | −1.8 pts |
Empty homes are scarce in Mount Joy: just 4.4% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Since 2006–10, vacancy has fallen 2.3 points, as it has 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 Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 1978 | 1963 | 1974 |
| 2010–14 | 1981 | 1964 | 1975 |
| 2015–19 | 1984 | 1965 | 1977 |
| 2020–24 | 1985 | 1967 | 1980 |
| Change | +7 | +4 | +6 |
Homes in Mount Joy are a bit newer than the national norm: the median home was built in 1985, versus 1980 across the U.S. The median year built has moved up from 1978 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 Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | $873 | $829 | $965 |
| 2010–14 | $973 | $923 | $1,040 |
| 2015–19 | $1,071 | $1,039 | $1,213 |
| 2020–24 | $1,330 | $1,323 | $1,571 |
| Change | +$457 | +$494 | +$606 |
Rent in Mount Joy runs $1,330 a month at the median, utilities included, below the U.S. median of $1,571. Rent has climbed $457 a month since 2006–10, up 52%, a slower climb than the nation's. The typical renter here spends 25.3% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the northeast and lowest 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 Mount Joy
Bachelor's degrees in Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 23.5% | 27.2% | 28.4% |
| 2010–14 | 25.9% | 28.7% | 29.6% |
| 2015–19 | 27.2% | 31.8% | 32.1% |
| 2020–24 | 36.3% | 35.6% | 35.6% |
| Change | +12.8 pts | +8.3 pts | +7.2 pts |
More than a third of adults 25 and older in Mount Joy (36.3%) hold at least a bachelor's degree, close to the national share of 35.6%. Since 2006–10, the share with a degree has risen 12.8 points, in line with the national trend. College graduates are most concentrated in the south and least in the north.
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 Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 91.6% | 87.3% | 84.9% |
| 2010–14 | 92.9% | 88.8% | 86.1% |
| 2015–19 | 93.5% | 90.3% | 87.7% |
| 2020–24 | 93.9% | 91.8% | 89.3% |
| Change | +2.3 pts | +4.5 pts | +4.3 pts |
High school completion in Mount Joy is above the national rate: 93.9% of adults have a diploma or equivalent, against 89.3%. Since 2006–10, the share with a diploma has risen 2.3 points, mirroring the country.
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 Mount Joy
| Period | Mount Joy | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 4.3% | 7.5% | 8.1% |
| 2010–14 | 6.7% | 8.8% | 9.4% |
| 2015–19 | 2.5% | 5.5% | 5.6% |
| 2020–24 | 2.9% | 5.4% | 5.4% |
| Change | −1.4 pts | −2.1 pts | −2.7 pts |
The job market in Mount Joy has been strong: just 2.9% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment has edged down 1.4 points since 2006–10, as it has nationally. 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).
Mount Joy 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Mount Joy | 2.36 | 44.4 | 8.8% | 28.9% | 4.4% | 1985 | $1,330 | 36.3% | 93.9% | 2.9% |
| Donegal Springs | 2.27 | 52.8 | 3.7% | 8.8% | 2.5% | 1988 | $1,274 | 37.2% | 93.4% | 4.1% |
| Rheems | 2.57 | 47.6 | 2.1% | 11.7% | 6.0% | 1971 | $1,941 | 35.8% | 94.5% | 2.4% |
| Salunga | 2.18 | 50.9 | 7.9% | 12.4% | 0.7% | 1982 | $985 | 35.7% | 90.0% | 1.2% |
| Milton Grove | 2.49 | 46.3 | 4.9% | 8.1% | 2.6% | 1986 | $1,295 | 23.6% | 88.0% | 4.4% |
| Marietta | 2.57 | 38.7 | 10.8% | 30.8% | 2.0% | 1978 | $1,436 | 29.7% | 93.7% | 4.6% |
| Columbia | 2.39 | 43.1 | 11.9% | 34.6% | 5.3% | 1966 | $1,131 | 24.9% | 87.1% | 2.7% |
| Landisville | 2.44 | 51.8 | 5.4% | 12.8% | 2.0% | 1978 | $1,133 | 43.6% | 93.0% | 3.5% |
| Elizabethtown | 2.36 | 45.5 | 7.0% | 33.5% | 4.9% | 1978 | $1,623 | 35.2% | 93.4% | 2.5% |
| Mountville | 2.48 | 43.7 | 7.5% | 27.0% | 4.3% | 1988 | $1,496 | 37.1% | 93.6% | 3.3% |
| Stacktown | 2.88 | 36.3 | 7.8% | 19.0% | 3.8% | 1977 | $1,798 | 26.1% | 94.3% | 0.5% |
All figures 2020–24.
Cities with similar populations: Lewisburg, TN · Rio Rico, AZ · Rex, GA · Pinewood, FL · Ludlow, MA · Long Beach, MS · London, OH · Lincoln, RI · Lewistown, PA · Ripon, CA
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 Mount Joy. 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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