Population 28 · Census ACS 2020–24
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Population and households in Waterloo
Household size in Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.33 | 2.41 | 2.51 | 2.68 |
| 2010–14 | 2.21 | 2.43 | 2.53 | 2.73 |
| 2015–19 | 2.31 | 2.42 | 2.50 | 2.71 |
| 2020–24 | 2.11 | 2.44 | 2.46 | 2.65 |
| Change | −0.22 | +0.03 | −0.05 | −0.03 |
Households in Waterloo are small: just 2.11 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 dropped from 2.33, but in a place this small, much of that may be survey noise rather than real change.
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 Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 46.9 | 39.8 | 40.3 | 37.7 |
| 2010–14 | 49.6 | 40.6 | 41.0 | 38.6 |
| 2015–19 | 41.4 | 40.9 | 41.8 | 39.6 |
| 2020–24 | 49.2 | 40.7 | 42.0 | 40.1 |
| Change | +2.3 | +0.8 | +1.7 | +2.3 |
With a median age of 49.2, Waterloo is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees.
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 Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.4% | 10.0% | 10.5% | 12.3% |
| 2010–14 | 4.4% | 10.7% | 10.6% | 12.3% |
| 2015–19 | 3.8% | 10.2% | 10.5% | 11.6% |
| 2020–24 | 3.5% | 10.2% | 10.7% | 11.6% |
| Change | −2.9 pts | +0.2 pts | +0.2 pts | −0.6 pts |
Single parents head only 3.5% of households in Waterloo, well below the national share of 11.6%.
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 Waterloo
Renters in Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 26.3% | 30.3% | 29.0% | 33.3% |
| 2010–14 | 28.8% | 31.6% | 30.5% | 35.6% |
| 2015–19 | 23.3% | 32.4% | 31.1% | 36.0% |
| 2020–24 | 27.1% | 32.0% | 30.7% | 34.8% |
| Change | +0.8 pts | +1.7 pts | +1.7 pts | +1.5 pts |
More than a quarter of households in Waterloo rent their homes (27.1%), below the national share of 34.8%; the rest own. Among homeowners, 72.4% have no mortgage at all, well above the national share of 39.8%.
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 Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 53.3% | 8.1% | 10.3% | 11.4% |
| 2010–14 | 49.7% | 8.6% | 10.5% | 11.4% |
| 2015–19 | 53.4% | 8.6% | 10.7% | 11.1% |
| 2020–24 | 42.1% | 6.5% | 9.1% | 9.6% |
| Change | −11.2 pts | −1.6 pts | −1.2 pts | −1.8 pts |
Vacancy is high in Waterloo: 42.1% 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.
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 Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 1968 | 1969 | 1963 | 1974 |
| 2010–14 | 1971 | 1970 | 1964 | 1975 |
| 2015–19 | 1973 | 1971 | 1965 | 1977 |
| 2020–24 | 1972 | 1974 | 1967 | 1980 |
| Change | +4 | +5 | +4 | +6 |
Housing in Waterloo leans older: the median home dates to 1972, against 1980 nationally. The Harrisburg area as a whole looks much the same.
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 Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,000 | $808 | $829 | $965 |
| 2010–14 | $546 | $909 | $923 | $1,040 |
| 2015–19 | $687 | $1,045 | $1,039 | $1,213 |
| 2020–24 | $866 | $1,304 | $1,323 | $1,571 |
| Change | −$134 | +$496 | +$494 | +$606 |
The median renter in Waterloo pays $866 a month for rent and utilities, well below the national median of $1,571. The typical renter here spends 18.7% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 Waterloo
Bachelor's degrees in Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.7% | 28.6% | 27.2% | 28.4% |
| 2010–14 | 8.2% | 29.4% | 28.7% | 29.6% |
| 2015–19 | 10.1% | 32.7% | 31.8% | 32.1% |
| 2020–24 | 13.5% | 35.9% | 35.6% | 35.6% |
| Change | +6.7 pts | +7.3 pts | +8.3 pts | +7.2 pts |
College degrees are relatively uncommon in Waterloo: 13.5% of adults 25 and older hold a bachelor's or higher, well below 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 Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 71.6% | 89.0% | 87.3% | 84.9% |
| 2010–14 | 75.1% | 89.8% | 88.8% | 86.1% |
| 2015–19 | 86.0% | 90.8% | 90.3% | 87.7% |
| 2020–24 | 85.1% | 91.8% | 91.8% | 89.3% |
| Change | +13.6 pts | +2.8 pts | +4.5 pts | +4.3 pts |
About one in seven adults in Waterloo never finished high school, more than nationally: 85.1% have a diploma or equivalent, against 89.3% across the U.S.
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 Waterloo
| Period | Waterloo | Harrisburg area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.6% | 5.6% | 7.5% | 8.1% |
| 2010–14 | 12.5% | 6.9% | 8.8% | 9.4% |
| 2015–19 | 3.9% | 4.2% | 5.5% | 5.6% |
| 2020–24 | 0.0% | 4.2% | 5.4% | 5.4% |
| Change | −7.6 pts | −1.4 pts | −2.1 pts | −2.7 pts |
The survey found almost no one in Waterloo out of work and looking, against 5.4% of the labor force 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).
Waterloo 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Waterloo | 2.11 | 49.2 | 3.5% | 27.1% | 42.1% | 1972 | $866 | 13.5% | 85.1% | 0.0% |
| Concord | 2.93 | 44.6 | 5.9% | 3.7% | 3.6% | 1975 | $863 | 10.6% | 89.7% | 2.1% |
| East Waterford | 2.24 | 48.8 | 3.9% | 24.6% | 36.2% | 1973 | $873 | 12.0% | 84.2% | 0.3% |
| Doylesburg | 2.43 | 50.5 | 4.1% | 7.1% | 7.2% | 1976 | $761 | 12.0% | 85.2% | 2.5% |
| Blairs Mills | 2.36 | 53.6 | 6.6% | 11.1% | 26.3% | 1977 | $654 | 16.1% | 90.4% | 1.8% |
| Nossville | 2.34 | 54.1 | 7.2% | 11.9% | 27.5% | 1978 | $655 | 17.8% | 91.8% | 1.0% |
| New Germantown | 2.89 | 35.4 | 8.9% | 24.9% | 38.9% | 1965 | $925 | 15.2% | 82.3% | 0.4% |
| Amberson | 1.93 | 56.3 | 2.4% | 9.3% | 10.7% | 1977 | $659 | 13.5% | 80.8% | 3.0% |
| Kistler | 2.78 | 43.1 | 4.9% | 14.2% | 18.0% | 1965 | $996 | 11.0% | 82.4% | 2.5% |
| Dry Run | 2.62 | 48.3 | 4.8% | 6.1% | 5.8% | 1976 | $799 | 11.5% | 86.9% | 2.4% |
| Aughwick | 2.46 | 53.8 | 3.5% | 14.0% | 17.9% | 1965 | $856 | 6.4% | 87.3% | 3.0% |
All figures 2020–24.
Cities with similar populations: Lamar, TX · Stonewall, CO · Stevens Village, AK · Stetsonville, NY · Stanwood, NY · St. Huberts, NY · South Wareham, MA · South Montesano, WA · South Bay, NY · Levert, AL
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 Waterloo. 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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