| Wahoo State Bank | Wahoo, NE | $92.1M | 2 |
| Walden Mutual Bank | Concord, NH | $129.1M | 1 |
| Walden Savings Bank | Montgomery, NY | $802.9M | 11 |
| Waldo State Bank | Waldo, WI | $126.2M | 1 |
| Wallis Bank | Wallis, TX | $1.2B | 16 |
| Wallkill Valley Federal Savings and Loan Association | Wallkill, NY | $410.4M | 9 |
| Walpole Co-operative Bank | Walpole, MA | $497.8M | 1 |
| Walters Bank and Trust Company | Walters, OK | $52.6M | 1 |
| Warren-Boynton State Bank | New Berlin, IL | $216.7M | 4 |
| Warsaw Federal Savings and Loan Association | Cincinnati, OH | $63.9M | 1 |
| Washington County Bank | Blair, NE | $525.3M | 4 |
| Washington Federal Bank | Seattle, WA | $21.5B | 210 |
| Washington Financial Bank | Washington, PA | $1.3B | 10 |
| Washington Savings Bank | Lowell, MA | $231.5M | 2 |
| Washington State Bank | Washington, IA | $508.7M | 5 |
| Washington State Bank | Washington, IL | $69.7M | 1 |
| Washington State Bank | Washington, LA | $271.3M | 7 |
| Washington Trust Bank | Spokane, WA | $8.7B | 42 |
| Washita State Bank | Burns Flat, OK | $38.5M | 1 |
| Waterfall Bank | Clearwater, FL | $305.8M | 1 |
| Waterford Bank | Toledo, OH | $1.5B | 4 |
| Waterman Bank | Waterman, IL | $135.9M | 3 |
| Watermark Bank | Oklahoma City, OK | $298.6M | 1 |
| WaterStone Bank, SSB | Wauwatosa, WI | $1.4B | 16 |
| Watertown Savings Bank | Watertown, MA | $1.3B | 10 |
| Watertown Savings Bank | Watertown, NY | $759.9M | 10 |
| Waukesha State Bank | Waukesha, WI | $1.3B | 15 |
| Wayne Bank | Honesdale, PA | $2.0B | 30 |
| Wayne Bank and Trust Co. | Richmond, IN | $215.6M | 3 |
| Wayne County Bank | Waynesboro, TN | $488.0M | 8 |
| Waypoint Bank | Cozad, NE | $293.0M | 7 |
| WebBank | Salt Lake City, UT | $1.7B | 1 |
| Webster Bank | Stamford, CT | $66.6B | 196 |
| Webster Five Cents Savings Bank | Webster, MA | $1.0B | 7 |
| Welch State Bank of Welch, Okla. | Welch, OK | $364.3M | 6 |
| Wellington State Bank | Wellington, TX | $546.3M | 14 |
| Wells Fargo Bank | Sioux Falls, SD | $1,392.8B | 4,214 |
| Wells Fargo Bank South Central | Houston, TX | $2.4B | 1 |
| Wells Fargo National Bank West | Las Vegas, NV | $7.4B | 1 |
| WesBanco Bank, Inc. | Wheeling, WV | $21.3B | 253 |
| West Alabama Bank & Trust | Reform, AL | $822.1M | 16 |
| West Bank | West Des Moines, IA | $3.4B | 11 |
| West Central Bank | Ashland, IL | $203.4M | 6 |
| West Central Georgia Bank | Thomaston, GA | $122.0M | 2 |
| West Coast Community Bank | Santa Cruz, CA | $2.3B | 10 |
| West Gate Bank | Lincoln, NE | $1.1B | 10 |
| West Michigan Community Bank | Hudsonville, MI | $929.8M | 8 |
| West Point Bank | Radcliff, KY | $448.2M | 5 |
| West Pointe Bank | Oshkosh, WI | $263.8M | 1 |
| West Shore Bank | Ludington, MI | $652.1M | 9 |
| West Texas National Bank | Midland, TX | $2.4B | 13 |
| West Texas State Bank | Snyder, TX | $308.5M | 4 |
| West Union Bank | West Union, WV | $266.8M | 5 |
| West Valley National Bank | Goodyear, AZ | $63.7M | 4 |
| West View Savings Bank | Pittsburgh, PA | $161.0M | 5 |
| Westamerica Bank | San Rafael, CA | $4.8B | 76 |
| Westbury Bank | Waukesha, WI | $724.9M | 9 |
| Western Alliance Bank | Phoenix, AZ | $71.4B | 37 |
| Western Bank | Lubbock, TX | $717.9M | 9 |
| Western Bank | Lordsburg, NM | $274.5M | 5 |
| Western Commerce Bank | Carlsbad, NM | $727.3M | 12 |
| Western National Bank | Chester, NE | $221.6M | 11 |
| Western National Bank | Duluth, MN | $103.6M | 3 |
| Western State Bank | Devils Lake, ND | $2.1B | 10 |
| Westfield Bank | Westfield, MA | $2.3B | 27 |
| Westfield Bank, FSB | Westfield Center, OH | $1.8B | 7 |
| Westmoreland Federal Savings and Loan Association | Latrobe, PA | $121.5M | 1 |
| Westside State Bank | Westside, IA | $180.1M | 6 |
| WestStar Bank | El Paso, TX | $2.9B | 14 |
| WEX Bank | Sandy, UT | $6.5B | 1 |
| Wheaton Bank & Trust | Wheaton, IL | $3.5B | 8 |
| Whitaker Bank | Lexington, KY | $1.6B | 45 |
| White State Bank | South English, IA | $87.2M | 3 |
| Whitesville State Bank | Whitesville, WV | $124.5M | 5 |
| Willamette Valley Bank | Salem, OR | $328.3M | 4 |
| Williamstown Bank, Inc. | Williamstown, WV | $202.8M | 4 |
| Williamsville State Bank & Trust | Williamsville, IL | $86.2M | 3 |
| Wilmington Savings Fund Society, FSB | Wilmington, DE | $17.5B | 95 |
| Wilmington Trust | Wilmington, DE | $5.4M | 43 |
| Wilson & Muir Bank & Trust Company | Bardstown, KY | $719.8M | 11 |
| Wilson Bank and Trust | Lebanon, TN | $5.1B | 32 |
| Winchester Co-operative Bank | Winchester, MA | $713.3M | 2 |
| Winchester Savings Bank | Winchester, MA | $682.0M | 5 |
| Windsor Federal Bank | Windsor, CT | $711.4M | 11 |
| Winnsboro State Bank & Trust Company | Winnsboro, LA | $338.7M | 5 |
| Winter Hill Bank, FSB | Somerville, MA | $297.3M | 3 |
| Winter Park National Bank | Winter Park, FL | $739.7M | 2 |
| Wintrust Bank | Chicago, IL | $8.3B | 37 |
| WNB Financial | Winona, MN | $490.9M | 7 |
| Wolf River Community Bank | Hortonville, WI | $289.8M | 4 |
| Wood & Huston Bank | Marshall, MO | $1.1B | 12 |
| Woodford State Bank | Monroe, WI | $377.1M | 6 |
| Woodforest National Bank | The Woodlands, TX | $8.3B | 744 |
| Woodland Bank | Deer River, MN | $142.6M | 4 |
| Woodlands Bank | Williamsport, PA | $555.1M | 8 |
| Woodlands National Bank | Hinckley, MN | $288.6M | 7 |
| Woodruff Federal Savings and Loan Association | Woodruff, SC | $61.8M | 1 |
| Woodsboro Bank | Woodsboro, MD | $424.9M | 5 |
| Woodsfield Savings Bank | Woodsfield, OH | $104.5M | 3 |
| Woodtrust Bank | Wisconsin Rapids, WI | $542.8M | 7 |
| Woori America Bank | New York, NY | $3.3B | 21 |
| Worthington Bank | Arlington, TX | $530.3M | 5 |
| Wray State Bank | Wray, CO | $243.6M | 3 |
| Wrentham Co-operative Bank | Wrentham, MA | $165.7M | 3 |
| WSB Municipal Bank | Watertown, NY | $104.7M | 1 |
| Wyoming Bank & Trust | Cheyenne, WY | $281.8M | 2 |