The following clubs celebrated their centennial during the 2020-2021 Rotary year.
| Club Charter Date | Club ID | Club Name | State/Province | Club Country Name | District ID | Zone ID | |
| 01-May-1921 | 160 | Prince Rupert | British Columbia | Canada | 5040 | 28 | |
| 01-May-1921 | 1383 | Yorkton | Saskatchewan | Canada | 5550 | 28 | |
| 01-May-1921 | 2920 | Charlotte | Michigan | United States | 6360 | 28 | |
| 01-May-1921 | 4567 | Brockville | Ontario | Canada | 7040 | 28 | |
| 01-May-1921 | 4711 | St. Catharines | Ontario | Canada | 7090 | 28 | |
| 01-May-1921 | 4822 | Wellsville | New York | United States | 7120 | 32 | |
| 01-May-1921 | 5035 | Port Chester-Rye Brook | New York | United States | 7230 | 32 | |
| 01-May-1921 | 5039 | Staten Island | New York | United States | 7230 | 32 | |
| 01-May-1921 | 5334 | Carlisle | Pennsylvania | United States | 7390 | 32 | |
| 01-May-1921 | 5440 | Norristown | Pennsylvania | United States | 7430 | 32 | |
| 01-May-1921 | 5504 | West Chester | Pennsylvania | United States | 7450 | 32 | |
| 01-May-1921 | 6460 | Nashua | New Hampshire | United States | 7870 | 32 | |
| 01-May-1921 | 6612 | Everett | Massachusetts | United States | 7930 | 32 | |
| 01-Apr-1921 | 3021 | Adrian | Michigan | United States | 6400 | 28 | |
| 01-Apr-1921 | 4558 | Peterborough | Ontario | Canada | 7010 | 28 | |
| 01-Apr-1921 | 4576 | Kingston | Ontario | Canada | 7040 | 28 | |
| 01-Apr-1921 | 4873 | Endicott | New York | United States | 7170 | 32 | |
| 01-Apr-1921 | 4963 | Hudson | New York | United States | 7210 | 32 | |
| 01-Apr-1921 | 5349 | Lebanon | Pennsylvania | United States | 7390 | 32 | |
| 01-Apr-1921 | 5598 | Ridgefield Park-Bogota | New Jersey | United States | 7490 | 32 | |
| 01-Apr-1921 | 6502 | New Britain-Berlin | Connecticut | United States | 7890 | 32 | |
| 01-Apr-1921 | 6521 | Willimantic | Connecticut | United States | 7890 | 32 | |
| 01-Apr-1921 | 6605 | Beverly | Massachusetts | United States | 7930 | 32 | |
| 01-Apr-1921 | 6729 | Greenwich | Connecticut | United States | 7980 | 32 | |
| 01-Apr-1921 | 6734 | Meriden | Connecticut | United States | 7980 | 32 | |
| 01-Mar-1921 | 1344 | Brandon | Manitoba | Canada | 5550 | 28 | |
| 01-Mar-1921 | 4706 | Niagara Falls | Ontario | Canada | 7090 | 28 | |
| 01-Mar-1921 | 5381 | Hazleton | Pennsylvania | United States | 7410 | 32 | |
| 01-Mar-1921 | 5660 | Red Bank | New Jersey | United States | 7505 | 32 | |
| 01-Mar-1921 | 6683 | Taunton | Massachusetts | United States | 7950 | 32 | |
| 01-Feb-1921 | 227 | Wenatchee | Washington | United States | 5060 | 28 | |
| 01-Feb-1921 | 4769 | Corning | New York | United States | 7120 | 32 | |
| 01-Feb-1921 | 5646 | Long Branch | New Jersey | United States | 7505 | 32 | |
| 01-Dec-1920 | 2932 | Hillsdale | Michigan | United States | 6360 | 28 | |
| 01-Dec-1920 | 4893 | Owego | New York | United States | 7170 | 32 | |
| 01-Dec-1920 | 5076 | Queens Borough | New York | United States | 7255 | 32 | |
| 01-Dec-1920 | 5982 | Vineland | New Jersey | United States | 7505 | 32 | |
| 01-Dec-1920 | 6656 | Fall River | Massachusetts | United States | 7950 | 32 | |
| 01-Nov-1920 | 5341 | Gettysburg | Pennsylvania | United States | 7390 | 32 | |
| 01-Sep-1920 | 2781 | Cadillac | Michigan | United States | 6290 | 28 | |
| 01-Aug-1920 | 5651 | New Brunswick, N. Brunswick, Highland Park & Milltown | New Jersey | United States | 7475 | 32 |