| The Union Bank Company | 352 | 31 | 3.6% | — | — |
| The Union State Bank of Everest | 95 | 2 | 8.2% | — | — |
| U S Wide Financial LLC | 124 | 18 | 1.3% | 6.500% | $2,940 |
| U.S. Bank, N.A. | 36,571 | 51 | 9.1% | 6.500% | $5,190 |
| UBS Bank USA | 1,988 | 49 | 5.4% | 6.250% | $6,420 |
| Uif Corporation | 1,466 | 31 | 13.3% | 6.750% | $5,580 |
| Ukrainian Federal Credit Union | 97 | 10 | 3.4% | 6.375% | $4,270 |
| Ulster Savings Bank | 269 | 1 | 3.2% | 6.625% | $4,150 |
| UMB Bank, N.A. | 656 | 26 | 7.4% | 6.624% | $3,320 |
| Umpqua Bank | 1,603 | 9 | 4.9% | 6.625% | $6,250 |
| UniBank for Savings | 233 | 4 | 4.6% | 6.250% | $2,940 |
| Unified Bank | 102 | 3 | 7.2% | — | — |
| Union Bank | 192 | 2 | 3.5% | — | — |
| Union Bank | 446 | 4 | 4.0% | 6.625% | $4,170 |
| Union Bank and Trust Company | 648 | 14 | 4.7% | 6.500% | $2,850 |
| Union Capital Mortgage Corporation | 527 | 3 | 4.2% | 6.625% | $5,590 |
| Union Home Mortgage Corp. | 31,103 | 50 | 4.9% | 6.750% | $6,020 |
| Union Savings Bank | 226 | 2 | 3.4% | 6.375% | $5,650 |
| Union Savings Bank | 5,368 | 27 | 4.5% | 6.625% | $2,420 |
| Union Square Credit Union | 164 | 6 | 8.3% | 6.500% | $3,590 |
| United Bank | 1,696 | 14 | 7.4% | 6.490% | $4,910 |
| United Bank | 169 | 3 | 20.0% | 6.625% | $6,260 |
| United Bank of Iowa | 234 | 3 | 22.3% | 6.875% | $2,850 |
| United Bank of Michigan | 207 | 2 | 6.9% | — | — |
| United Bank of Union | 125 | 3 | 1.1% | 6.500% | $2,830 |
| United Built Homes, L.L.C. | 281 | 5 | 43.9% | 8.990% | — |
| United Community Bank | 736 | 11 | 8.1% | 6.500% | $2,160 |
| United Community Bank | 2,204 | 7 | 17.0% | 6.625% | $5,680 |
| United Cumberland Bank | 129 | 2 | 17.3% | — | — |
| United Federal Credit Union | 1,338 | 30 | 5.5% | 6.625% | $3,790 |
| United Home Loans, Inc. | 514 | 16 | 2.3% | 6.750% | $6,550 |
| United Mortgage Corp. | 1,944 | 39 | 5.6% | 6.875% | $10,570 |
| United Nations Federal Credit Union | 1,059 | 33 | 7.0% | 6.125% | $5,190 |
| United Northern Mortgage Bankers Limited | 750 | 19 | 6.9% | 6.625% | $6,760 |
| United Trust Bank | 974 | 45 | 6.5% | 6.500% | $7,040 |
| United Wholesale Mortgage (UWM) | 361,155 | 51 | 8.9% | 6.624% | $7,230 |
| Unitedone Credit Union | 104 | 1 | 19.2% | — | $2,090 |
| Unitus Community Credit Union | 141 | 3 | 3.5% | 6.625% | $4,730 |
| Unity Bank | 284 | 7 | 4.8% | 6.750% | $5,740 |
| Universal Lending Corporation | 809 | 7 | 5.4% | 4.990% | $5,770 |
| Universal Mortgage & Finance, Inc. | 123 | 11 | 12.1% | 6.750% | $8,450 |
| University Bank | 2,107 | 42 | 2.2% | 6.625% | $4,580 |
| University Federal Credit Union | 1,088 | 13 | 3.1% | 6.500% | $6,480 |
| University First Federal Credit Union | 147 | 1 | 1.4% | 6.500% | $6,690 |
| University of Illinois Community Credit Union | 275 | 9 | 4.0% | 5.500% | $2,700 |
| University of Michigan Credit Union | 210 | 1 | 3.9% | 6.375% | $3,320 |
| University of Virginia Community Credit Union, Inc. | 294 | 1 | 8.3% | — | — |
| University of Wisconsin Credit Union | 2,675 | 3 | 2.4% | 6.625% | $3,240 |
| Univest Bank and Trust Co. | 681 | 10 | 2.9% | 6.625% | $5,880 |
| US Mortgage Corporation | 1,362 | 34 | 7.0% | — | $7,330 |
| USAA Federal Savings Bank | 10,865 | 51 | 32.8% | 6.625% | $4,940 |
| Usalliance Federal Credit Union | 94 | 10 | 6.1% | 6.625% | $6,910 |
| USF Federal Credit Union | 118 | 1 | 3.9% | 6.500% | $5,440 |
| Utah Community Federal Credit Union | 192 | 2 | 8.6% | 6.500% | $6,940 |
| Utah Power Federally Insured State-Chartered Credit Union | 108 | 9 | 3.5% | 6.000% | $6,380 |
| Uwharrie Bank | 396 | 12 | 1.7% | 6.750% | $4,540 |