| County Name | State | Average Interest Income | Rank* | |||||
| Cottle County | Texas | $10,268 | 1 | |||||
| Teton County | Wyoming | $8,872 | 2 | |||||
| Collier County | Florida | $6,741 | 3 | |||||
| Pitkin County | Colorado | $6,696 | 4 | |||||
| San Juan County | Washington | $6,190 | 5 | |||||
| Martin County | Florida | $5,832 | 6 | |||||
| Indian River County | Florida | $5,636 | 7 | |||||
| Palm Beach County | Florida | $5,632 | 8 | |||||
| Comal County | Texas | $4,614 | 9 | |||||
| McMullen County | Texas | $4,603 | 10 | |||||
| Sarasota County | Florida | $4,584 | 11 | |||||
| Marin County | California | $4,554 | 12 | |||||
| New York County | New York | $4,333 | 13 | |||||
| Storey County | Nevada | $4,008 | 14 | |||||
| Dundy County | Nebraska | $3,984 | 15 | |||||
| Blanco County | Texas | $3,937 | 16 | |||||
| Talbot County | Maryland | $3,904 | 17 | |||||
| Monroe County | Florida | $3,877 | 18 | |||||
| Union County | South Dakota | $3,780 | 19 | |||||
| Westchester County | New York | $3,707 | 20 | |||||
| Blaine County | Idaho | $3,668 | 21 | |||||
| Fairfield County | Connecticut | $3,650 | 22 | |||||
| Nassau County | New York | $3,612 | 23 | |||||
| Douglas County | Nevada | $3,534 | 24 | |||||
| Garden County | Nebraska | $3,532 | 25 | |||||
| Highland County | Virginia | $3,518 | 26 | |||||
| Gillespie County | Texas | $3,483 | 27 | |||||
| Ouray County | Colorado | $3,463 | 28 | |||||
| Wright County | Iowa | $3,416 | 29 | |||||
| Aurora County | South Dakota | $3,390 | 30 | |||||
| Sweet Grass County | Montana | $3,366 | 31 | |||||
| Arthur County | Nebraska | $3,348 | 32 | |||||
| Bergen County | New Jersey | $3,322 | 33 | |||||
| Lancaster County | Virginia | $3,301 | 34 | |||||
| Kerr County | Texas | $3,266 | 35 | |||||
| Hinsdale County | Colorado | $3,243 | 36 | |||||
| Borden County | Texas | $3,218 | 37 | |||||
| Kent County | Maryland | $3,214 | 38 | |||||
| Valley County | Nebraska | $3,185 | 39 | |||||
| Smith County | Kansas | $3,161 | 40 | |||||
| Potter County | South Dakota | $3,146 | 41 | |||||
| Mathews County | Virginia | $3,127 | 42 | |||||
| Lee County | Florida | $3,124 | 43 | |||||
| Nemaha County | Kansas | $3,110 | 44 | |||||
| Lycoming County | Pennsylvania | $3,108 | 45 | |||||
| San Mateo County | California | $3,102 | 46 | |||||
| Beaufort County | South Carolina | $3,081 | 47 | |||||
| Garfield County | Washington | $3,061 | 48 | |||||
| Williamsburg City | Virginia | $3,056 | 49 | |||||
| St. Johns County | Florida | $3,049 | 50 | |||||