Population Figures for Cities and Villages
(Data from the U.S. Census Bureau website)
| CITY / VILLAGE |
2010 |
2020 |
+/- |
| Algonquin |
30,046 |
29,700 |
-1.2% |
| Barrington Hills |
4,209 |
4,114 |
-2.3% |
| Bull Valley |
1,077 |
1,128 |
4.7% |
| Cary |
18,271 |
17,826 |
-2.4% |
| Crystal Lake |
40,743 |
40,269 |
-1.2% |
| Fox Lake |
10,579 |
10,978 |
3.8% |
| Fox River Grove |
10,227 |
10,612 |
3.8% |
| Greenwood |
255 |
324 |
27.1% |
| Harvard |
9,447 |
9,469 |
0.2% |
| Hebron |
1,216 |
1,368 |
12.5% |
| Holiday Hills |
610 |
618 |
1.3% |
| Huntley |
24,291 |
27,740 |
14.2% |
| Island Lake |
8,080 |
8,051 |
-0.4% |
| Johnsburg |
6,337 |
6,355 |
0.3% |
| Lake in the Hills |
28,965 |
28,982 |
0.1% |
| Lakemoor |
6,017 |
6,182 |
2.7% |
| Lakewood |
3,811 |
4,283 |
12.4% |
| Marengo |
7,648 |
7,568 |
-1.0% |
| McCullom Lake |
1,049 |
988 |
-5.8% |
| McHenry |
26,992 |
27,135 |
0.5% |
| Oakwood Hills |
2,083 |
2,076 |
-0.3% |
| Port Barrington |
1,517 |
1,584 |
4.4% |
| Prairie Grove |
1,904 |
1,963 |
3.1% |
| Richmond |
1,874 |
2,089 |
11.5% |
| Ringwood |
836 |
844 |
1.0% |
| Spring Grove |
5,778 |
5,487 |
-5.0% |
| Trout Valley |
537 |
515 |
-4.1% |
| Union |
580 |
551 |
-5.0% |
| Wonder Lake |
4,026 |
3,973 |
-1.3% |
| Woodstock |
24,770 |
25,630 |
3.5% |
Township Population
| TOWNSHIP |
2010 |
2020 |
+/- |
| Alden |
1,402 |
1,275 |
-9.1% |
| Algonquin |
88,389 |
87,633 |
-0.9% |
| Burton |
5,003 |
4,820 |
-3.7% |
| Chemung |
9,134 |
9,095 |
-0.4% |
| Coral |
3,552 |
3,638 |
2.4% |
| Dorr |
20,911 |
21,572 |
3.2% |
| Dunham |
2,844 |
2,823 |
-0.7% |
| Grafton |
53,137 |
56,446 |
6.2% |
| Greenwood |
13,990 |
14,184 |
1.4% |
| Hartland |
2,031 |
1,861 |
-8.4% |
| Hebron |
2,356 |
2,327 |
-1.2% |
| Marengo |
7,564 |
7,202 |
-4.8% |
| McHenry |
47,653 |
46,268 |
-2.9% |
| Nunda |
38,245 |
38,344 |
0.3% |
| Richmond |
6,683 |
6,813 |
1.9% |
| Riley |
2,922 |
3,035 |
3.9% |
| Seneca |
2,944 |
2,893 |
-1.7% |
| TOTAL |
308,760 |
310,229 |
0.5% |
