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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Round Lake Beach. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Round Lake Beach, Illinois is approximatly 25859.
Racial profile for Round Lake Beach:
| White : | 19227 |
| Black : | 792 |
| Native American : | 161 |
| Asian : | 534 |
| Pacific Islander : | 11 |
| Other : | 4387 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Round Lake Beach, Illinois :
| 18 - 19 : | 364 |
| 20 : | 197 |
| 21 : | 184 |
| 22 - 24 : | 530 |
| 25 - 29 : | 1094 |
| 30 - 34 : | 1410 |
| 35 - 39 : | 1313 |
| 40 - 44 : | 1029 |
| 45 - 49 : | 728 |
| 50 - 54 : | 560 |
| 55 - 59 : | 346 |
| 60 - 61 : | 121 |
| 62 - 64 : | 141 |
| 65 - 66 : | 65 |
| 67 - 69 : | 83 |
| 70 - 74 : | 120 |
| 75 - 79 : | 90 |
| 80 - 84 : | 36 |
| 85+ : | 32 |
Population by age for females in Round Lake Beach, Illinois :
| 18 - 19 : | 330 |
| 20 : | 171 |
| 21 : | 151 |
| 22 - 24 : | 508 |
| 25 - 29 : | 1133 |
| 30 - 34 : | 1254 |
| 35 - 39 : | 1262 |
| 40 - 44 : | 915 |
| 45 - 49 : | 714 |
| 50 - 54 : | 556 |
| 55 - 59 : | 372 |
| 60 - 61 : | 111 |
| 62 - 64 : | 129 |
| 65 - 66 : | 76 |
| 67 - 69 : | 125 |
| 70 - 74 : | 177 |
| 75 - 79 : | 155 |
| 80 - 84 : | 104 |
| 85+ : | 128 |
The total amount of households in Round Lake Beach, Illinois is 7349. With 25719 people of the population in these households. The average household size is 3.50.
23076 people in Round Lake Beach, Illinois are part of a family. The average family size in Round Lake Beach is 3.83 people.
There are 6632 married families in Round Lake Beach, Illinois.
Number of married families by number of members in the family :
| 0 - 2 : | 1275 | 3 - 4 : | 900 | 5 : | 431 | 6 - 11 : | 2278 | 12 - 17 : | 1748 |