Based on the US Census Bureau 2010 data
| Rank | Surname | Count | Per 100K |
|---|---|---|---|
| 1 | Smith | 2,442,977 | 828.2 |
| 2 | Johnson | 1,932,812 | 655.2 |
| 3 | Williams | 1,625,252 | 551.0 |
| 4 | Brown | 1,437,026 | 487.2 |
| 5 | Jones | 1,425,470 | 483.2 |
| 6 | Garcia | 1,166,120 | 395.3 |
| 7 | Miller | 1,161,437 | 393.7 |
| 8 | Davis | 1,116,357 | 378.4 |
| 9 | Rodriguez | 1,094,924 | 371.2 |
| 10 | Martinez | 1,060,159 | 359.4 |
| 11 | Hernandez | 1,043,281 | 353.7 |
| 12 | Lopez | 874,523 | 296.5 |
| 13 | Gonzalez | 841,025 | 285.1 |
| 14 | Wilson | 801,882 | 271.8 |
| 15 | Anderson | 784,404 | 265.9 |
| 16 | Thomas | 756,142 | 256.3 |
| 17 | Taylor | 751,209 | 254.7 |
| 18 | Moore | 724,374 | 245.6 |
| 19 | Jackson | 708,099 | 240.1 |
| 20 | Martin | 702,625 | 238.2 |
| 21 | Lee | 693,023 | 234.9 |
| 22 | Perez | 681,645 | 231.1 |
| 23 | Thompson | 664,644 | 225.3 |
| 24 | White | 660,491 | 223.9 |
| 25 | Harris | 624,252 | 211.6 |
| 26 | Sanchez | 612,752 | 207.7 |
| 27 | Clark | 562,679 | 190.8 |
| 28 | Ramirez | 557,423 | 189.0 |
| 29 | Lewis | 531,781 | 180.3 |
| 30 | Robinson | 529,821 | 179.6 |
| 31 | Walker | 523,129 | 177.3 |
| 32 | Young | 484,447 | 164.2 |
| 33 | Allen | 482,607 | 163.6 |
| 34 | King | 465,422 | 157.8 |
| 35 | Wright | 458,980 | 155.6 |
| 36 | Scott | 439,530 | 149.0 |
| 37 | Torres | 437,813 | 148.4 |
| 38 | Nguyen | 437,645 | 148.4 |
| 39 | Hill | 434,827 | 147.4 |
| 40 | Flores | 433,969 | 147.1 |
| 41 | Green | 430,182 | 145.8 |
| 42 | Adams | 427,865 | 145.1 |
| 43 | Nelson | 424,958 | 144.1 |
| 44 | Baker | 419,586 | 142.2 |
| 45 | Hall | 407,076 | 138.0 |
| 46 | Rivera | 391,114 | 132.6 |
| 47 | Campbell | 386,157 | 130.9 |
| 48 | Mitchell | 384,486 | 130.3 |
| 49 | Carter | 376,966 | 127.8 |
| 50 | Roberts | 376,774 | 127.7 |
| 51 | Gomez | 365,655 | 124.0 |
| 52 | Phillips | 360,802 | 122.3 |
| 53 | Evans | 355,593 | 120.5 |
| 54 | Turner | 348,627 | 118.2 |
| 55 | Diaz | 347,636 | 117.8 |
| 56 | Parker | 336,221 | 114.0 |
| 57 | Cruz | 334,201 | 113.3 |
| 58 | Edwards | 332,423 | 112.7 |
| 59 | Collins | 329,770 | 111.8 |
| 60 | Reyes | 327,904 | 111.2 |
| 61 | Stewart | 324,957 | 110.2 |
| 62 | Morris | 318,884 | 108.1 |
| 63 | Morales | 311,777 | 105.7 |
| 64 | Murphy | 308,417 | 104.6 |
| 65 | Cook | 302,589 | 102.6 |
| 66 | Rogers | 302,261 | 102.5 |
| 67 | Gutierrez | 293,218 | 99.4 |
| 68 | Ortiz | 286,899 | 97.3 |
| 69 | Morgan | 286,280 | 97.0 |
| 70 | Cooper | 280,791 | 95.2 |
| 71 | Peterson | 278,297 | 94.3 |
| 72 | Bailey | 277,845 | 94.2 |
| 73 | Reed | 277,030 | 93.9 |
| 74 | Kelly | 267,394 | 90.7 |
| 75 | Howard | 264,826 | 89.8 |
| 76 | Ramos | 263,464 | 89.3 |
| 77 | Kim | 262,352 | 88.9 |
| 78 | Cox | 261,231 | 88.6 |
| 79 | Ward | 260,464 | 88.3 |
| 80 | Richardson | 259,798 | 88.1 |
| 81 | Watson | 252,579 | 85.6 |
| 82 | Brooks | 251,663 | 85.3 |
| 83 | Chavez | 250,898 | 85.1 |
| 84 | Wood | 250,715 | 85.0 |
| 85 | James | 249,379 | 84.5 |
| 86 | Bennett | 247,599 | 83.9 |
| 87 | Gray | 246,116 | 83.4 |
| 88 | Mendoza | 242,771 | 82.3 |
| 89 | Ruiz | 238,234 | 80.8 |
| 90 | Hughes | 236,271 | 80.1 |
| 91 | Price | 235,251 | 79.8 |
| 92 | Alvarez | 233,983 | 79.3 |
| 93 | Castillo | 230,420 | 78.1 |
| 94 | Sanders | 230,374 | 78.1 |
| 95 | Patel | 229,973 | 78.0 |
| 96 | Myers | 229,895 | 77.9 |
| 97 | Long | 229,374 | 77.8 |
| 98 | Ross | 229,368 | 77.8 |
| 99 | Foster | 227,764 | 77.2 |
| 100 | Jimenez | 227,118 | 77.0 |