Nearly 225,000 Coloradans depend on federal enhanced premium tax credits (ePTCs) to afford health coverage in the individual health insurance market. EPTCs are currently scheduled to expire December 31 this year. If the tax credits are allowed to expire, average premium increases will exceed 170% for marketplace customers in Colorado, with people in some rural counties facing increases of more than 300%.
District-level data from the Division of Insurance and Connect for Health Colorado underscores how significant the impact on net premium increases would be across Colorado if the tax credit expires. Below is a breakdown of impact by county:
| County | Average Net Premium Increase for Financially Assisted Customers | Current Enrollment as of 4/1/2025 | Enrollment Loss | Percentage enrollment loss |
| Denver | 164% | 39,667 | -9,877 | 25% |
| Arapahoe | 179% | 35,184 | -8,761 | 25% |
| Jefferson | 161% | 35,485 | -8,836 | 25% |
| Boulder | 114% | 25,355 | -11,968 | 47% |
| Broomfield | 167% | 4,568 | -1,137 | 25% |
| Clear Creek | 159% | 560 | -139 | 25% |
| Eagle | 159% | 5,767 | -2,047 | 35% |
| Gilpin | 168% | 340 | -85 | 25% |
| Grand | 151% | 1,527 | -542 | 35% |
| Jackson | 365% | 74 | -26 | 35% |
| Jefferson | 161% | 35,485 | -8,836 | 25% |
| Larimer | 194% | 21,964 | -3,382 | 15% |
| Routt | 171% | 3,406 | -1,209 | 35% |
| Summit | 148% | 3,661 | -1,300 | 35% |
| Weld | 189% | 14,881 | -6,652 | 45% |
| Moffat | 221% | 509 | -181 | 35% |
| Rio Blanco | 160% | 371 | -132 | 35% |
| Garfield | 262% | 5,195 | -1,844 | 35% |
| Delta | 333% | 2,233 | -793 | 35% |
| Pitkin | 212% | 2,156 | -765 | 35% |
| Gunnison | 238% | 2,944 | -1,045 | 35% |
| Mesa | 170% | 8,581 | -2,918 | 34% |
| Montrose | 344% | 2,860 | -1,015 | 35% |
| Ouray | 316% | 657 | -233 | 35% |
| San Miguel | 214% | 1,510 | -536 | 35% |
| Hinsdale | 242% | 54 | -19 | 35% |
| Saguache | 210% | 393 | -151 | 38% |
| Montezuma | 181% | 1,235 | -438 | 35% |
| La Plata | 178% | 5,752 | -2,042 | 36% |
| Archuleta | 216% | 1,484 | -527 | 36% |
| Conejos | 192% | 275 | -105 | 38% |
| Rio Grande | 197% | 588 | -225 | 38% |
| Mineral | 161% | 130 | -50 | 38% |
| Alamosa | 198% | 591 | -226 | 38% |
| Costilla | 257% | 170 | -65 | 38% |
| Huerfano | 270% | 393 | -151 | 38% |
| Las Animas | 254% | 555 | -213 | 38% |
| Pueblo | 214% | 4,829 | -985 | 20% |
| Otero | 240% | 617 | -236 | 38% |
| Dolores | 196% | 108 | -38 | 35% |
| San Juan | 143% | 187 | -66 | 35% |
| Adams | 176% | 21,933 | -5,461 | 25% |
| Arapahoe | 179% | 35,184 | -8,761 | 25% |
| Baca | 192% | 255 | -98 | 38% |
| Bent | 292% | 159 | -61 | 38% |
| Cheyenne | 131% | 116 | -44 | 38% |
| Crowley | 334% | 101 | -39 | 39% |
| Douglas | 161% | 22,839 | -5,687 | 25% |
| El Paso | 159% | 26,125 | -7,080 | 27% |
| Elbert | 162% | 1,531 | -381 | 25% |
| Kiowa | 249% | 95 | -36 | 38% |
| Kit Carson | 189% | 477 | -183 | 38% |
| Larimer | 194% | 21,964 | -3,382 | 15% |
| Lincoln | 200% | 215 | -82 | 38% |
| Logan | 274% | 937 | -359 | 38% |
| Morgan | 254% | 1,093 | -419 | 38% |
| Phillips | 206% | 327 | -125 | 38% |
| Prowers | 186% | 595 | -228 | 38% |
| Sedgwick | 266% | 87 | -33 | 38% |
| Washington | 220% | 353 | -135 | 38% |
| Weld | 189% | 14,881 | -6,652 | 45% |
| Yuma | 186% | 882 | -338 | 38% |
| El Paso | 159% | 26,125 | -7,080 | 27% |
| Adams | 176% | 21,933 | -5,461 | 25% |
| Arapahoe | 179% | 35,184 | -8,761 | 25% |
| Denver | 164% | 39,667 | -9,877 | 25% |
| Douglas | 161% | 22,839 | -5,687 | 25% |
| Jefferson | 161% | 35,485 | -8,836 | 25% |
| Adams | 176% | 21,933 | -5,461 | 25% |
| Boulder | 114% | 25,355 | -11,968 | 47% |
| Broomfield | 167% | 4,568 | -1,137 | 25% |
| Chaffee | 191% | 2,585 | -990 | 38% |
| Custer | 283% | 355 | -136 | 38% |
| El Paso | 159% | 26,125 | -7,080 | 27% |
| Fremont | 265% | 1,387 | -531 | 38% |
| Jefferson | 161% | 35,485 | -8,836 | 25% |
| Lake | 143% | 514 | -182 | 35% |
| Park | 186% | 1,113 | -277 | 25% |
| Teller | 168% | 1,177 | -319 | 27% |
| Weld | 189% | 14,881 | -6,652 | 45% |
| Adams | 176% | 21,933 | -5,461 | 25% |
| Larimer | 194% | 21,964 | -3,382 | 15% |
| Weld | 186% | 14,881 | -6,652 | 45% |
