Last Names Starting with K
8,877 surnames found in U.S. Census data starting with K. Sorted by Census rank.
| Rank | Name | Est. Bearers | Per 100K | Rarity |
|---|---|---|---|---|
| #36 | King | 520,085 | 151.74 | Very Common |
| #71 | Kim | 314,281 | 91.69 | Common |
| #80 | Kelly | 293,007 | 85.49 | Common |
| #149 | Kennedy | 196,614 | 57.36 | Common |
| #203 | Kelley | 157,388 | 45.92 | Common |
| #212 | Knight | 152,150 | 44.39 | Common |
| #303 | Khan | 116,702 | 34.05 | Common |
| #329 | Keller | 107,985 | 31.51 | Common |
| #398 | Klein | 91,224 | 26.62 | Uncommon |
| #431 | Kaur | 86,057 | 25.11 | Uncommon |
| #547 | Kramer | 69,893 | 20.39 | Uncommon |
| #641 | Kirby | 59,194 | 17.27 | Uncommon |
| #649 | Kirk | 58,560 | 17.09 | Uncommon |
| #684 | Kane | 55,990 | 16.34 | Uncommon |
| #703 | Koch | 54,416 | 15.88 | Uncommon |
| #749 | Keith | 51,900 | 15.14 | Uncommon |
| #762 | Kemp | 50,944 | 14.86 | Uncommon |
| #778 | Kline | 49,516 | 14.45 | Uncommon |
| #780 | Kerr | 49,445 | 14.43 | Uncommon |
| #782 | Knox | 49,339 | 14.39 | Uncommon |
| #799 | Kent | 48,349 | 14.11 | Uncommon |
| #847 | Knapp | 45,741 | 13.35 | Uncommon |
| #917 | Kumar | 42,955 | 12.53 | Uncommon |
| #968 | Krueger | 40,787 | 11.90 | Uncommon |
| #985 | Kang | 39,945 | 11.65 | Uncommon |
| #1016 | Kaufman | 38,775 | 11.31 | Uncommon |
| #1058 | Krause | 37,428 | 10.92 | Uncommon |
| #1068 | Kaiser | 37,023 | 10.80 | Uncommon |
| #1074 | Kidd | 36,773 | 10.73 | Uncommon |
| #1083 | Key | 36,435 | 10.63 | Uncommon |
| #1122 | Katz | 35,168 | 10.26 | Uncommon |
| #1129 | Kuhn | 34,910 | 10.19 | Uncommon |
| #1140 | Kinney | 34,608 | 10.10 | Uncommon |
| #1188 | Kendall | 33,253 | 9.70 | Uncommon |
| #1207 | Kirkland | 32,850 | 9.58 | Uncommon |
| #1231 | Kessler | 32,171 | 9.39 | Uncommon |
| #1254 | Kaplan | 31,681 | 9.24 | Uncommon |
| #1263 | Knowles | 31,226 | 9.11 | Uncommon |
| #1265 | Kern | 31,137 | 9.08 | Uncommon |
| #1319 | Kendrick | 29,978 | 8.75 | Uncommon |
| #1321 | Kenney | 29,965 | 8.74 | Uncommon |
| #1375 | Kirkpatrick | 28,980 | 8.46 | Uncommon |
| #1479 | Kurtz | 26,958 | 7.87 | Uncommon |
| #1523 | Kauffman | 26,224 | 7.65 | Uncommon |
| #1538 | Kay | 26,065 | 7.60 | Uncommon |
| #1542 | Kimball | 25,988 | 7.58 | Uncommon |
| #1667 | Koenig | 24,178 | 7.05 | Uncommon |
| #1688 | Kraft | 23,885 | 6.97 | Uncommon |
| #1697 | Kilgore | 23,727 | 6.92 | Uncommon |
| #1766 | Kruse | 22,713 | 6.63 | Uncommon |