Last Names Starting with K
9,246 surnames found in U.S. Census data starting with K. Sorted by Census rank.
| Rank | Name | Est. Bearers | Per 100K | Rarity |
|---|---|---|---|---|
| #34 | King | 529,972 | 157.78 | Very Common |
| #74 | Kelly | 304,487 | 90.65 | Common |
| #77 | Kim | 298,743 | 88.94 | Common |
| #146 | Kennedy | 201,402 | 59.96 | Common |
| #198 | Kelley | 160,221 | 47.70 | Common |
| #209 | Knight | 155,687 | 46.35 | Common |
| #317 | Keller | 111,886 | 33.31 | Common |
| #392 | Klein | 92,774 | 27.62 | Uncommon |
| #427 | Khan | 86,728 | 25.82 | Uncommon |
| #526 | Kramer | 72,788 | 21.67 | Uncommon |
| #623 | Kirk | 61,939 | 18.44 | Uncommon |
| #633 | Kirby | 61,233 | 18.23 | Uncommon |
| #680 | Kane | 57,606 | 17.15 | Uncommon |
| #698 | Koch | 56,262 | 16.75 | Uncommon |
| #711 | Kaur | 55,523 | 16.53 | Uncommon |
| #718 | Keith | 55,221 | 16.44 | Uncommon |
| #753 | Kemp | 52,534 | 15.64 | Uncommon |
| #761 | Kline | 51,694 | 15.39 | Uncommon |
| #769 | Knox | 50,955 | 15.17 | Uncommon |
| #771 | Kerr | 50,921 | 15.16 | Uncommon |
| #778 | Kent | 50,485 | 15.03 | Uncommon |
| #825 | Knapp | 47,562 | 14.16 | Uncommon |
| #946 | Krueger | 41,852 | 12.46 | Uncommon |
| #1007 | Kaufman | 39,669 | 11.81 | Uncommon |
| #1009 | Krause | 39,535 | 11.77 | Uncommon |
| #1037 | Key | 38,157 | 11.36 | Uncommon |
| #1039 | Kaiser | 38,124 | 11.35 | Uncommon |
| #1060 | Kidd | 37,788 | 11.25 | Uncommon |
| #1084 | Kang | 36,680 | 10.92 | Uncommon |
| #1101 | Katz | 36,176 | 10.77 | Uncommon |
| #1102 | Kuhn | 36,176 | 10.77 | Uncommon |
| #1113 | Kinney | 35,941 | 10.70 | Uncommon |
| #1126 | Kendall | 35,538 | 10.58 | Uncommon |
| #1161 | Kirkland | 34,496 | 10.27 | Uncommon |
| #1196 | Kaplan | 33,690 | 10.03 | Uncommon |
| #1216 | Kessler | 33,085 | 9.85 | Uncommon |
| #1237 | Kern | 32,514 | 9.68 | Uncommon |
| #1239 | Knowles | 32,414 | 9.65 | Uncommon |
| #1259 | Kendrick | 31,776 | 9.46 | Uncommon |
| #1266 | Kenney | 31,608 | 9.41 | Uncommon |
| #1344 | Kirkpatrick | 29,894 | 8.90 | Uncommon |
| #1357 | Kumar | 29,592 | 8.81 | Uncommon |
| #1467 | Kay | 27,711 | 8.25 | Uncommon |
| #1476 | Kurtz | 27,577 | 8.21 | Uncommon |
| #1544 | Kimball | 26,536 | 7.90 | Uncommon |
| #1592 | Koenig | 25,629 | 7.63 | Uncommon |
| #1606 | Kauffman | 25,461 | 7.58 | Uncommon |
| #1635 | Kraft | 25,091 | 7.47 | Uncommon |
| #1667 | Kilgore | 24,621 | 7.33 | Uncommon |
| #1730 | Kearney | 23,580 | 7.02 | Uncommon |