Population 22,828 · Census ACS 2020–24
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Population and households in Round Lake
Household size in Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.90 | 2.79 | 2.69 | 2.68 |
| 2010–14 | 3.03 | 2.82 | 2.71 | 2.73 |
| 2015–19 | 2.93 | 2.75 | 2.66 | 2.71 |
| 2020–24 | 2.95 | 2.66 | 2.58 | 2.65 |
| Change | +0.05 | −0.12 | −0.11 | −0.03 |
Households in Round Lake are large by national standards, averaging 2.95 people against 2.65 for the U.S. That usually means more families with children at home. Household size has crept up from 2.90 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 Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 31.8 | 36.8 | 37.6 | 37.7 |
| 2010–14 | 33.2 | 37.8 | 38.5 | 38.6 |
| 2015–19 | 36.0 | 38.9 | 39.6 | 39.6 |
| 2020–24 | 37.0 | 39.7 | 40.2 | 40.1 |
| Change | +5.1 | +3.0 | +2.6 | +2.3 |
The median resident of Round Lake is 37.0 years old, a few years younger than the national median of 40.1. The median age has climbed from 31.8 in 2006–10, mirroring the country. The youngest areas are in the north, the oldest in the south.
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 Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.4% | 12.0% | 11.7% | 12.3% |
| 2010–14 | 10.2% | 12.0% | 11.7% | 12.3% |
| 2015–19 | 9.8% | 11.2% | 11.1% | 11.6% |
| 2020–24 | 9.9% | 11.5% | 11.3% | 11.6% |
| Change | +0.5 pts | −0.5 pts | −0.4 pts | −0.6 pts |
Single parents head about one in ten households in Round Lake (9.9%), a little below the national share of 11.6%. The single-parent share has barely moved since 2006–10, while 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 Round Lake
Renters in Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 17.1% | 32.1% | 30.8% | 33.3% |
| 2010–14 | 20.3% | 34.8% | 33.1% | 35.6% |
| 2015–19 | 20.6% | 35.5% | 33.9% | 36.0% |
| 2020–24 | 20.7% | 34.5% | 32.9% | 34.8% |
| Change | +3.7 pts | +2.3 pts | +2.1 pts | +1.5 pts |
Round Lake is largely a place of homeowners: only 20.7% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 27.8% have no mortgage at all, well below the national share of 39.8%. The renter share has risen 3.7 points since 2006–10, mirroring the country.
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 Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.8% | 9.8% | 10.0% | 11.4% |
| 2010–14 | 5.2% | 9.8% | 10.1% | 11.4% |
| 2015–19 | 5.3% | 8.9% | 9.8% | 11.1% |
| 2020–24 | 4.6% | 7.2% | 8.1% | 9.6% |
| Change | −2.2 pts | −2.6 pts | −1.9 pts | −1.8 pts |
Only 4.6% of homes in Round Lake are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Since 2006–10, vacancy has fallen 2.2 points, in line with the national trend.
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 Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 1998 | 1966 | 1966 | 1974 |
| 2010–14 | 1999 | 1967 | 1967 | 1975 |
| 2015–19 | 1998 | 1967 | 1968 | 1977 |
| 2020–24 | 1999 | 1970 | 1970 | 1980 |
| Change | +1 | +4 | +4 | +6 |
Much of the housing in Round Lake is relatively new: half of its homes were built after 1999, compared with 1980 for the U.S. as a whole. Newer construction is concentrated in the west, while the northeast has the oldest housing. Of the 388 Illinois cities with 5,000+ people, only eight have newer 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 Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,193 | $1,060 | $953 | $965 |
| 2010–14 | $1,281 | $1,142 | $1,028 | $1,040 |
| 2015–19 | $1,386 | $1,306 | $1,165 | $1,213 |
| 2020–24 | $1,616 | $1,602 | $1,428 | $1,571 |
| Change | +$422 | +$542 | +$475 | +$606 |
A typical rental in Round Lake costs $1,616 a month with utilities, close to the national median of $1,571. Rents are up $422 a month from 2006–10, a 35% rise, a slower climb than the nation's. The typical renter here spends 33.9% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Rents run highest in the west and lowest in the northeast.
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 Round Lake
Bachelor's degrees in Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 32.3% | 33.9% | 31.2% | 28.4% |
| 2010–14 | 35.9% | 35.2% | 32.4% | 29.6% |
| 2015–19 | 33.4% | 37.9% | 34.7% | 32.1% |
| 2020–24 | 38.5% | 40.9% | 37.7% | 35.6% |
| Change | +6.2 pts | +7.0 pts | +6.5 pts | +7.2 pts |
College degrees are about as common in Round Lake as nationally: 38.5% of adults 25 and older have a bachelor's or higher, against 35.6%. Since 2006–10, the share with a degree has risen 6.2 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 Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 85.6% | 85.6% | 86.3% | 84.9% |
| 2010–14 | 85.5% | 86.7% | 87.5% | 86.1% |
| 2015–19 | 90.1% | 88.4% | 89.1% | 87.7% |
| 2020–24 | 87.7% | 89.5% | 90.3% | 89.3% |
| Change | +2.0 pts | +3.9 pts | +4.0 pts | +4.3 pts |
About one in eight adults in Round Lake never finished high school, a bit more than nationally: 87.7% have a diploma or equivalent, against 89.3% across the U.S. The share with a diploma has risen 2.0 points since 2006–10, mirroring the country. Round Lake has a lower share of high school graduates than at least four in five Illinois cities.
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 Round Lake
| Period | Round Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.3% | 9.1% | 8.7% | 8.1% |
| 2010–14 | 7.5% | 10.8% | 10.2% | 9.4% |
| 2015–19 | 5.0% | 6.3% | 6.1% | 5.6% |
| 2020–24 | 6.1% | 6.3% | 6.0% | 5.4% |
| Change | −1.1 pts | −2.8 pts | −2.7 pts | −2.7 pts |
Unemployment runs a little high in Round Lake: 6.1% of the labor force was out of work and looking, against 5.4% nationally. Unemployment is down 1.1 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).
Round Lake 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Round Lake | 2.95 | 37.0 | 9.9% | 20.7% | 4.6% | 1999 | $1,616 | 38.5% | 87.7% | 6.1% |
| Round Lake Park | 2.72 | 42.9 | 11.8% | 15.3% | 7.6% | 1986 | $1,336 | 24.7% | 83.4% | 4.2% |
| Hainesville | 3.14 | 41.3 | 11.5% | 10.3% | 3.0% | 1997 | $1,463 | 31.0% | 79.5% | 8.9% |
| Round Lake Beach | 3.27 | 33.4 | 18.6% | 18.4% | 5.5% | 1983 | $1,696 | 16.0% | 74.5% | 7.1% |
| Round Lake Heights | 2.99 | 34.3 | 12.7% | 19.1% | 2.0% | 1990 | $1,480 | 34.5% | 84.9% | 3.5% |
| Volo | 2.85 | 35.7 | 9.5% | 19.0% | 3.7% | 2005 | $2,020 | 54.6% | 96.6% | 2.4% |
| Ingleside | 2.61 | 39.8 | 5.5% | 17.4% | 7.6% | 1978 | $1,272 | 26.7% | 87.0% | 5.8% |
| Grayslake | 2.61 | 37.1 | 8.7% | 21.0% | 3.8% | 1988 | $1,686 | 55.0% | 96.6% | 5.0% |
| Venetian Village | 2.75 | 39.5 | 13.1% | 23.3% | 4.1% | 1989 | $1,908 | 39.0% | 92.1% | 5.0% |
| Lakemoor | 2.68 | 37.4 | 6.7% | 27.4% | 3.4% | 1990 | $1,654 | 37.2% | 94.0% | 3.0% |
| Lake Villa | 2.82 | 41.1 | 11.0% | 18.9% | 3.5% | 1988 | $1,706 | 42.2% | 95.5% | 5.9% |
All figures 2020–24.
Cities with similar populations: Acton, MA · Wetumpka, AL · Bellefonte, PA · Beeville, TX · Bayville, NJ · Batesville, AR · Aston, PA · Arnold, MD · Anderson, CA · Amherst, OH
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 Round Lake. 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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