Last Updated: Apr-2025
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Census List

This chart shows the number of ARRT credentials held by Registered Technologists (R.T.s) in each state and region. If viewing on desktop, hover over the headers in each column to see full credential name (or view legend at bottom of page). The "Techs" column shows the total number of R.T.s who hold ARRT credentials and the "Certs" column shows the total number of credentials held by those R.T.s.

State/Country RAD NMT THR MRI SON MAM CT QM BD CI VI CV VS BS RA Certs Techs
Alabama 5,761 69 362 702 61 701 1,438 12 70 24 40 50 7 23 1 9,321 6,015
Alaska 686 16 32 128 17 119 236 7 21 3 4 2 0 0 0 1,271 731
Arizona 6,264 226 404 901 113 822 1,788 14 136 49 140 46 2 48 10 10,963 6,878
Arkansas 3,994 159 233 366 18 475 796 5 18 29 66 54 2 32 12 6,259 4,217
California 22,946 1,050 1,607 4,104 457 3,098 6,701 54 151 162 433 107 7 80 20 40,977 26,581
Colorado 5,628 156 339 936 24 879 1,885 11 167 23 204 47 4 101 19 10,423 5,913
Connecticut 3,760 132 273 601 10 826 963 21 69 12 50 38 2 30 18 6,805 4,133
Delaware 1,126 39 60 193 2 177 286 4 16 0 16 13 0 13 0 1,945 1,198
District of Columbia 119 2 20 23 0 13 18 0 1 0 3 2 0 0 0 201 137
Federated States of Micronesia 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
Florida 24,002 1,171 1,957 3,969 356 3,140 6,974 75 270 58 544 190 33 60 46 42,845 26,792
Georgia 11,112 338 802 1,535 47 1,418 2,638 33 91 16 165 59 5 43 11 18,313 11,793
Hawaii 992 30 68 150 3 188 252 2 8 14 34 11 0 8 0 1,760 1,037
Idaho 2,223 69 111 319 5 357 751 2 60 12 57 8 1 2 3 3,980 2,286
Illinois 13,365 378 968 1,821 43 1,973 3,037 18 127 58 136 56 3 79 8 22,070 14,267
Indiana 8,135 143 613 977 43 1,089 2,196 18 69 25 84 42 2 77 15 13,528 8,717
Iowa 4,038 132 214 457 3 805 1,057 12 60 19 52 34 2 13 8 6,906 4,163
Kansas 3,433 103 202 428 9 599 982 8 46 3 63 20 2 5 8 5,911 3,510
Kentucky 6,566 63 326 809 33 820 1,895 17 58 73 124 56 6 52 10 10,908 6,752
Louisiana 6,106 290 321 489 12 673 1,085 11 41 26 32 30 11 12 3 9,142 6,251
Maine 1,694 54 88 199 1 272 481 5 24 4 25 19 0 11 2 2,879 1,782
Maryland 5,432 204 409 910 3 942 1,394 25 50 22 101 82 1 9 8 9,592 5,977
Massachusetts 6,045 329 532 1,119 6 1,021 1,583 18 58 30 83 64 1 30 12 10,931 6,996
Michigan 9,661 314 885 1,446 17 1,565 2,572 18 147 30 227 54 13 71 7 17,027 10,963
Minnesota 6,180 61 505 957 9 1,163 1,649 20 168 23 129 32 2 41 1 10,940 6,523
Mississippi 4,353 170 214 312 18 459 783 4 43 6 51 29 5 8 10 6,465 4,434
Missouri 6,915 139 447 928 67 927 1,876 30 114 41 134 50 7 38 8 11,721 7,192
Montana 1,450 36 84 177 3 263 433 4 18 12 24 9 0 3 4 2,520 1,483
Nebraska 2,704 59 161 377 0 496 916 9 36 13 44 16 0 4 1 4,836 2,743
Nevada 2,469 136 168 407 6 316 754 5 16 25 67 9 1 1 0 4,380 2,734
New Hampshire 1,685 41 131 250 3 297 495 5 39 1 32 16 3 12 0 3,010 1,843
New Jersey 8,528 464 746 1,544 47 1,634 2,030 50 138 21 78 61 1 24 15 15,381 9,350
New Mexico 1,972 97 83 251 11 257 618 11 35 2 13 13 0 9 2 3,374 2,091
New York 16,235 760 1,308 2,665 57 2,800 4,391 53 239 73 222 69 10 59 36 28,977 18,259
North Carolina 11,979 420 879 1,668 65 1,768 3,223 48 213 52 239 125 12 79 16 20,786 12,755
North Dakota 1,028 12 69 114 4 195 266 5 10 9 35 12 0 5 4 1,768 1,045
Ohio 13,971 560 883 2,076 27 1,920 3,705 42 147 93 203 117 2 40 16 23,802 15,029
Oklahoma 4,213 128 314 472 36 556 1,176 10 47 20 38 28 1 26 11 7,076 4,566
Oregon 3,242 156 270 544 11 574 1,145 11 61 46 56 27 1 7 10 6,161 3,589
Palau 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
Pennsylvania 15,166 560 1,122 2,137 23 2,252 3,358 44 315 50 327 153 6 73 32 25,618 16,198
Rhode Island 1,099 62 45 233 0 241 307 2 6 2 18 7 0 0 2 2,024 1,220
South Carolina 6,123 230 324 790 67 849 1,600 13 56 10 95 56 11 50 11 10,285 6,520
South Dakota 1,298 23 91 131 3 275 424 5 42 0 27 11 0 15 1 2,346 1,326
Tennessee 8,750 274 569 987 30 1,091 2,109 18 172 20 133 59 5 57 9 14,283 9,129
Texas 26,334 965 1,620 3,517 628 3,226 8,240 72 206 89 316 134 33 149 34 45,563 28,888
Utah 3,272 161 215 549 4 442 827 2 23 6 67 10 0 6 5 5,589 3,425
Vermont 603 14 68 95 1 136 235 1 29 1 16 4 0 4 0 1,207 683
Virginia 8,123 186 663 1,070 87 1,200 1,935 32 129 33 247 94 3 60 18 13,880 8,729
Washington 6,012 125 486 942 15 917 1,902 17 102 34 142 48 0 36 10 10,788 6,487
West Virginia 2,909 98 141 310 5 363 575 15 29 41 47 24 1 6 2 4,566 2,962
Wisconsin 7,185 55 568 921 5 1,252 1,901 14 135 23 159 32 3 47 4 12,304 7,655
Wyoming 779 27 38 115 2 190 309 7 18 9 20 5 0 3 2 1,524 795
Subtotal 327,666 11,487 23,038 47,121 2,517 48,031 88,190 939 4,344 1,447 5,662 2,334 211 1,661 485 565,133 354,744
AE (Armed Forces Europe) 103 1 6 13 0 10 32 0 0 0 1 0 0 1 0 167 107
AP (Armed Forces Pacific) 61 2 0 6 1 8 18 0 0 0 1 0 0 0 0 97 63
Subtotal 164 3 6 19 1 18 50 0 0 0 2 0 0 1 0 264 170
American Samoa 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 3 2
Canada 437 7 162 106 0 18 36 0 1 1 5 0 0 1 0 774 671
Guam 32 0 2 6 2 3 15 0 0 0 2 0 0 0 0 62 37
Other 212 19 25 42 0 33 51 1 0 4 0 0 0 3 1 391 260
Puerto Rico 351 5 5 43 0 19 93 0 4 0 2 1 0 0 1 524 361
Virgin Islands 22 0 3 3 0 3 8 0 0 0 0 0 0 0 0 39 24
Subtotal 1,056 31 197 200 2 77 203 1 5 5 9 1 0 4 2 1,793 1,355
Total 328,886 11,521 23,241 47,340 2,520 48,126 88,443 940 4,349 1,452 5,673 2,335 211 1,666 487 567,190 356,269

Discipline Abbreviations

RAD — Radiography

NMT — Nuclear Medicine Technology

THR — Radiation Therapy

MRI — Magnetic Resonance Imaging

SON — Sonography

MAM — Mammography

CT — Computed Tomography

QM — Quality Management

BD — Bone Densitometry

CI — Cardiac Interventional Radiography

VI — Vascular Interventional Radiography

CV — Cardiovscular Interventional Radiography

VS — Vascular Sonography

BS — Breast Sonography