The following table summarizes the Chicon 8 membership international demographics as of August 28, 2021.
| Country | Adult Attending* | Age Attending** | Supporting | Total |
| Australia | 4 | 12 | 16 | |
| Austria | 2 | 2 | ||
| Belgium | 1 | 1 | ||
| Bermuda | 1 | 1 | ||
| Brazil | 2 | 2 | ||
| Canada | 25 | 19 | 44 | |
| China | 1 | 1 | ||
| Denmark | 1 | 1 | ||
| Finland | 15 | 15 | ||
| France | 2 | 2 | ||
| Germany | 9 | 13 | 22 | |
| Ireland | 8 | 10 | 18 | |
| Israel | 1 | 1 | 2 | |
| Japan | 3 | 2 | 5 | |
| Luxembourg | 1 | 1 | ||
| Netherlands | 3 | 2 | 5 | |
| New Zealand | 1 | 3 | 4 | |
| Norway | 3 | 3 | ||
| Poland | 1 | 1 | ||
| Saudi Arabia | 14 | 14 | ||
| The Shire | 4 | 4 | ||
| Spain | 1 | 1 | ||
| Sweden | 5 | 5 | 10 | |
| Switzerland | 2 | 2 | ||
| Thailand | 1 | 1 | ||
| United Kingdom | 29 | 3 | 43 | 75 |
| United States | 955 | 33 | 240 | 1,228 |
| Total | 1,048 | 36 | 394 | 1,478 |
** Includes Young Adults, Teen, and Child Attending members.
The US state demographics for the 1,228 US members are shown on the following map and table. We are delighted to already have members from 45 different states (plus Washington, D.C.) – and if you’re in (North or South) Dakota, Montana, Utah, or West Virginia, we’d love to hear from you!
| Alabama (5) | Illinois (241) | Montana (0) | Rhode Island (3) |
| Alaska (2) | Indiana (24) | Nebraska (12) | South Carolina (7) |
| Arizona (14) | Iowa (10) | Nevada (9) | South Dakota (0) |
| Arkansas (2) | Kansas (13) | New Hampshire (10) | Tennessee (7) |
| California (162) | Kentucky (4) | New Jersey (21) | Texas (47) |
| Colorado (25) | Louisiana (5) | New Mexico (12) | Utah (0) |
| Connecticut (7) | Maine (2) | New York (40) | Vermont (1) |
| Delaware (5) | Maryland (36) | North Carolina (16) | Virginia (35) |
| D.C. (5) | Massachusetts (55) | North Dakota (0) | Washington (56) |
| Florida (23) | Michigan (51) | Ohio (34) | West Virginia (0) |
| Georgia (5) | Minnesota (70) | Oklahoma (11) | Wisconsin (52) |
| Hawaii (7) | Mississippi (1) | Oregon (24) | Wyoming (2) |
| Idaho (1) | Missouri (21) | Pennsylvania (27) |