Population 1,044 · Census ACS 2020–24
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Population and households in Third Lake
Household size in Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.05 | 2.79 | 2.69 | 2.68 |
| 2010–14 | 3.05 | 2.82 | 2.71 | 2.73 |
| 2015–19 | 2.78 | 2.75 | 2.66 | 2.71 |
| 2020–24 | 2.51 | 2.66 | 2.58 | 2.65 |
| Change | −0.54 | −0.12 | −0.11 | −0.03 |
Households in Third Lake run a little small, averaging 2.51 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has dropped from 3.05, 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 Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 37.9 | 36.8 | 37.6 | 37.7 |
| 2010–14 | 39.3 | 37.8 | 38.5 | 38.6 |
| 2015–19 | 39.1 | 38.9 | 39.6 | 39.6 |
| 2020–24 | 41.9 | 39.7 | 40.2 | 40.1 |
| Change | +4.0 | +3.0 | +2.6 | +2.3 |
Third Lake skews a little older than the country: its median age is 41.9, 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 Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.4% | 12.0% | 11.7% | 12.3% |
| 2010–14 | 3.3% | 12.0% | 11.7% | 12.3% |
| 2015–19 | 7.1% | 11.2% | 11.1% | 11.6% |
| 2020–24 | 7.0% | 11.5% | 11.3% | 11.6% |
| Change | +3.6 pts | −0.5 pts | −0.4 pts | −0.6 pts |
Single parents head only 7.0% of households in Third Lake, 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 Third Lake
Renters in Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.1% | 32.1% | 30.8% | 33.3% |
| 2010–14 | 5.0% | 34.8% | 33.1% | 35.6% |
| 2015–19 | 10.4% | 35.5% | 33.9% | 36.0% |
| 2020–24 | 2.5% | 34.5% | 32.9% | 34.8% |
| Change | −2.6 pts | +2.3 pts | +2.1 pts | +1.5 pts |
Only 2.5% of households in Third Lake rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About a third of owners (32.3%) have paid off their mortgages, below 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 Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.4% | 9.8% | 10.0% | 11.4% |
| 2010–14 | 4.1% | 9.8% | 10.1% | 11.4% |
| 2015–19 | 1.7% | 8.9% | 9.8% | 11.1% |
| 2020–24 | 2.9% | 7.2% | 8.1% | 9.6% |
| Change | −0.6 pts | −2.6 pts | −1.9 pts | −1.8 pts |
Empty homes are scarce in Third Lake: just 2.9% sit vacant, compared with 9.6% nationally, a sign of a tight housing market.
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 Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 1990 | 1966 | 1966 | 1974 |
| 2010–14 | 1991 | 1967 | 1967 | 1975 |
| 2015–19 | 1991 | 1967 | 1968 | 1977 |
| 2020–24 | 1991 | 1970 | 1970 | 1980 |
| Change | +1 | +4 | +4 | +6 |
Much of the housing in Third Lake is relatively new: half of its homes were built after 1991, compared with 1980 for the U.S. as a whole.
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 Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | $823 | $1,060 | $953 | $965 |
| 2010–14 | $1,616 | $1,142 | $1,028 | $1,040 |
| 2015–19 | $1,650 | $1,306 | $1,165 | $1,213 |
| 2020–24 | $2,029 | $1,602 | $1,428 | $1,571 |
| Change | +$1,206 | +$542 | +$475 | +$606 |
A typical rental in Third Lake costs $2,029 a month with utilities, well above the national median of $1,571. The typical renter here spends 23.3% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 Third Lake
Bachelor's degrees in Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 55.8% | 33.9% | 31.2% | 28.4% |
| 2010–14 | 58.8% | 35.2% | 32.4% | 29.6% |
| 2015–19 | 67.0% | 37.9% | 34.7% | 32.1% |
| 2020–24 | 64.8% | 40.9% | 37.7% | 35.6% |
| Change | +9.0 pts | +7.0 pts | +6.5 pts | +7.2 pts |
Third Lake is highly educated: about two-thirds of adults 25 and older (64.8%) hold at least a bachelor's degree, far above 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 Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 94.8% | 85.6% | 86.3% | 84.9% |
| 2010–14 | 93.4% | 86.7% | 87.5% | 86.1% |
| 2015–19 | 97.2% | 88.4% | 89.1% | 87.7% |
| 2020–24 | 98.0% | 89.5% | 90.3% | 89.3% |
| Change | +3.2 pts | +3.9 pts | +4.0 pts | +4.3 pts |
Finishing high school is nearly universal in Third Lake: 98.0% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.
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 Third Lake
| Period | Third Lake | Chicago area | Illinois | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.5% | 9.1% | 8.7% | 8.1% |
| 2010–14 | 4.4% | 10.8% | 10.2% | 9.4% |
| 2015–19 | 3.8% | 6.3% | 6.1% | 5.6% |
| 2020–24 | 9.8% | 6.3% | 6.0% | 5.4% |
| Change | +5.4 pts | −2.8 pts | −2.7 pts | −2.7 pts |
Finding work has been harder in Third Lake: 9.8% of the labor force was out of work and looking, well above the national rate of 5.4%. 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).
Third 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Third Lake | 2.51 | 41.9 | 7.0% | 2.5% | 2.9% | 1991 | $2,029 | 64.8% | 98.0% | 9.8% |
| Gages Lake | 2.60 | 42.1 | 7.8% | 19.2% | 5.7% | 1980 | $2,056 | 42.4% | 96.8% | 9.2% |
| Grayslake | 2.61 | 37.1 | 8.7% | 21.0% | 3.8% | 1988 | $1,686 | 55.0% | 96.6% | 5.0% |
| Gurnee | 2.63 | 41.4 | 7.3% | 22.1% | 3.1% | 1989 | $1,727 | 55.5% | 95.2% | 5.3% |
| Hainesville | 3.14 | 41.3 | 11.5% | 10.3% | 3.0% | 1997 | $1,463 | 31.0% | 79.5% | 8.9% |
| Venetian Village | 2.75 | 39.5 | 13.1% | 23.3% | 4.1% | 1989 | $1,908 | 39.0% | 92.1% | 5.0% |
| Old Mill Creek | 3.07 | 39.7 | 9.4% | 6.8% | 5.1% | 1992 | $1,768 | 68.8% | 99.0% | 4.7% |
| Lindenhurst | 2.86 | 38.0 | 8.5% | 14.5% | 3.7% | 1988 | $1,982 | 49.2% | 95.3% | 6.5% |
| Round Lake Park | 2.72 | 42.9 | 11.8% | 15.3% | 7.6% | 1986 | $1,336 | 24.7% | 83.4% | 4.2% |
| 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% |
All figures 2020–24.
Cities with similar populations: Flat Rock, IL · West Cape May, NJ · Garibaldi, OR · Garden Prairie, IL · West Rushville, OH · Weyerhaeuser, WI · Frost, TX · Freedom, ME · Freedom, IN · Fonda, IA
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 Third 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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