Registered Dietitian (RD) and Registered Dietitian Nutritionist (RDN)
As of March 14, 2022
| Alabama | 1,466 | Alaska | 234 | American Samoa | 1 |
| Arizona | 2,057 | Arkansas | 890 | Armed Forces Africa, Canada, Europe and Middle East | 67 |
| Armed Forces Americas (except Canada) | 6 | Armed Forces Pacific | 23 | California | 11,395 |
| Colorado | 2,676 | Connecticut | 1,526 | Delaware | 333 |
| District of Columbia | 231 | Florida | 5,678 | Georgia | 2,590 |
| Guam | 25 | Hawaii | 424 | Idaho | 719 |
| Illinois | 4,284 | Indiana | 2,136 | Iowa | 1,090 |
| Kansas | 1,013 | Kentucky | 1,388 | Louisiana | 1,422 |
| Maine | 486 | Maryland | 1,968 | Massachusetts | 3,058 |
| Michigan | 3,565 | Minnesota | 2,546 | Mississippi | 815 |
| Missouri | 2,087 | Montana | 454 | Nebraska | 776 |
| Nevada | 695 | New Hampshire | 630 | New Jersey | 3,360 |
| New Mexico | 468 | New York | 7,245 | North Carolina | 3,662 |
| North Dakota | 400 | Northern Mariana Islands | 4 | Ohio | 4,700 |
| Oklahoma | 1,163 | Oregon | 1,316 | Pennsylvania | 4,998 |
| Puerto Rico | 327 | Rhode Island | 449 | South Carolina | 1,373 |
| South Dakota | 324 | Tennessee | 2,298 | Texas | 7,662 |
| Utah | 1,199 | Vermont | 289 | Virgin Islands | 8 |
| Virginia | 2,563 | Washington | 2,748 | West Virginia | 392 |
| Wisconsin | 2,371 | Wyoming | 178 | Canada | 211 |
| Foreign | 611 |