Colorado expanded Medicaid, so the federal work requirement that takes effect January 1, 2027 applies to its expansion adults. About 357,249 of them (9.8% of an expansion pool of 381,904) will have to prove 80 hours a month of work, school, or service, or an exemption, to keep coverage.
This model's bottom-up estimate is that 86,786 people in Colorado lose coverage by 2034: 76,069 of them still eligible but lost to paperwork and reporting failures, and 10,717 not meeting the requirement. Nationally the same model gives 5,461,400, against CBO's 5,200,000.
Whether those eligible people keep coverage depends on the state's ability to renew them automatically (ex parte) from data it already holds. Colorado scores 66 of 100 on this model's ex parte capability index, a mid band; its eligibility system is CBMS.
Key figures
| Measure | Colorado |
|---|---|
| Expansion state | Yes |
| Subject to the requirement via waiver | No |
| Expansion pool (adults 19 to 64) | 381,904 |
| Adults subject, strict definition | 357,249 |
| Adults subject, permissive definition | 350,104 |
| Share of expansion pool subject | 9.8% |
| Projected coverage loss by 2034 | 86,786 |
| Hardship exception status | Adopting |
| Early implementer | No |
| Ex parte capability score (0 to 100) | 66 (mid) |
Who is subject in Colorado
Of the 357,248 subject adults, 41% already work 80 or more hours a month and 49% are not working. 29% have a child under 14 at home. Among those not working, 47% report a disability and 15% are caregivers.
| Characteristic | Share of subject adults |
|---|---|
| Age 19-24 | 16% |
| Age 25-34 | 23% |
| Age 35-44 | 19% |
| Age 45-54 | 17% |
| Age 55-64 | 25% |
| Not working | 49% |
| 1 to 19 hours a month | 1% |
| 20 to 79 hours a month | 9% |
| 80 or more hours a month (meets the bar) | 41% |
| Not working: Disabled | 47% |
| Not working: Caregiver | 15% |
| Not working: Postpartum | 0% |
| Not working: Student | 4% |
| Not working: Other | 34% |
Why eligible people lose coverage
Of the 86,786 projected to lose coverage in Colorado, 76,069 meet the requirement or qualify for an exemption but fail to document it. 35,584 of those are working people who cannot prove their hours through data the state can see, and 40,485 qualify for an exemption the state does not detect automatically.
| Group | Projected to lose coverage |
|---|---|
| Multiple part-time jobs (aggregation failure) | 10,974 |
| Self-employed (other) | 7,586 |
| Variable shifts / on-call work | 6,696 |
| Full-time students not auto-verified | 2,811 |
| Cash-paid construction & trades | 2,256 |
| Seasonal: agriculture, hospitality, food service | 2,219 |
| Gig / courier (DoorDash, Uber, Lyft, Instacart) | 1,724 |
| Volunteering / job training | 1,318 |
| Medically frail without auto-match | 15,546 |
| Caregivers of a disabled adult | 8,832 |
| American Indian / Alaska Native (tribal exemption) | 4,383 |
| SUD treatment not flagged in claims data | 3,617 |
| Parent caregivers of children ≤13 without auto-match | 3,288 |
| Kinship caregivers (non-parent) of children ≤13 | 2,156 |
| Recent incarceration (data-match gap) | 1,582 |
| Other categorical exemptions (foster, AYA cancer, SNAP/TANF) | 922 |
| Pregnancy / postpartum data lag | 159 |
Can the state renew people automatically?
The ex parte capability index blends the state's observed automatic-renewal rate (63% in CMS eligibility-processing data), the wage, disability, and other data sources it can query, and its history of churn. Colorado's composite score is 66 (mid band). A low score means more eligible people will be dropped for paperwork unless the state changes its process before January 1, 2027.
| Component | Score |
|---|---|
| Composite | 66 |
| Observed ex parte | 63 |
| Core capability | 100 |
| Data sources | 76 |
| Historical churn | 50 |
How subjects overlap across exemption categories
| Combination | Adults | Share |
|---|---|---|
| None of the four | 123,955 | 34.7% |
| Working ≥ qualifying hours / income | 80,217 | 22.4% |
| Medically frail | 47,545 | 13.3% |
| Working ≥ qualifying hours / income + Parent caregiver of child ≤13 | 40,592 | 11.4% |
| Parent caregiver of child ≤13 | 17,880 | 5.0% |
| Full-time student | 17,411 | 4.9% |
| Working ≥ qualifying hours / income + Full-time student | 14,453 | 4.0% |
| Working ≥ qualifying hours / income + Medically frail | 5,850 | 1.6% |
Counties in Colorado
Subject adults concentrate: El Paso County (42,185), Arapahoe County (38,460), and Denver County (36,084) account for 33% of the state's subject population.
| County | Adults subject | Subject rate | Projected loss | Poverty rate | Working-age population |
|---|---|---|---|---|---|
| El Paso County | 42,185 | 9.2% | 10,248 | 9.0% | 456,926 |
| Arapahoe County | 38,460 | 9.4% | 9,343 | 8.0% | 408,376 |
| Denver County | 36,084 | 7.3% | 8,766 | 12.0% | 492,635 |
| Jefferson County | 35,473 | 9.8% | 8,617 | 7.0% | 362,456 |
| Adams County | 30,559 | 9.2% | 7,424 | 10.0% | 331,726 |
| Larimer County | 26,154 | 11.4% | 6,354 | 11.0% | 228,964 |
| Boulder County | 23,909 | 11.5% | 5,808 | 11.0% | 208,746 |
| Douglas County | 23,041 | 9.9% | 5,597 | 3.0% | 231,920 |
| Weld County | 20,974 | 9.9% | 5,095 | 10.0% | 210,964 |
| Mesa County | 10,899 | 12.0% | 2,648 | 11.0% | 90,526 |
| Pueblo County | 10,623 | 10.9% | 2,581 | 17.0% | 97,132 |
| Broomfield County | 4,521 | 9.4% | 1,098 | 5.0% | 48,004 |
| La Plata County | 4,035 | 11.9% | 980 | 11.0% | 33,842 |
| Garfield County | 3,969 | 10.7% | 964 | 8.0% | 37,110 |
| Eagle County | 3,171 | 9.0% | 770 | 8.0% | 35,218 |
| Montrose County | 3,138 | 13.5% | 762 | 12.0% | 23,198 |
| Fremont County | 2,998 | 10.0% | 728 | 15.0% | 29,962 |
| Delta County | 2,351 | 14.4% | 571 | 15.0% | 16,293 |
| Summit County | 1,949 | 9.3% | 473 | 7.0% | 20,908 |
| Morgan County | 1,927 | 11.3% | 468 | 13.0% | 17,120 |
| Elbert County | 1,923 | 11.7% | 467 | 4.0% | 16,430 |
| Montezuma County | 1,876 | 13.3% | 456 | 13.0% | 14,092 |
| Teller County | 1,827 | 12.5% | 444 | 7.0% | 14,572 |
| Routt County | 1,749 | 11.0% | 425 | 8.0% | 15,888 |
| Gunnison County | 1,444 | 12.3% | 351 | 11.0% | 11,711 |
| Park County | 1,312 | 11.8% | 319 | 7.0% | 11,085 |
| Logan County | 1,271 | 9.9% | 309 | 12.0% | 12,804 |
| Otero County | 1,262 | 12.7% | 307 | 24.0% | 9,928 |
| Chaffee County | 1,251 | 10.4% | 304 | 12.0% | 12,057 |
| Pitkin County | 1,200 | 11.3% | 292 | 7.0% | 10,606 |
| Grand County | 1,180 | 11.8% | 287 | 9.0% | 9,996 |
| Alamosa County | 1,115 | 11.6% | 271 | 16.0% | 9,642 |
| Archuleta County | 1,091 | 14.6% | 265 | 8.0% | 7,468 |
| Las Animas County | 1,038 | 13.2% | 252 | 19.0% | 7,879 |
| Moffat County | 850 | 11.1% | 207 | 15.0% | 7,682 |
| Prowers County | 818 | 12.8% | 199 | 18.0% | 6,372 |
| Rio Grande County | 781 | 12.2% | 190 | 10.0% | 6,384 |
| Clear Creek County | 608 | 10.6% | 148 | 7.0% | 5,718 |
| San Miguel County | 602 | 11.9% | 146 | 8.0% | 5,054 |
| Yuma County | 595 | 11.3% | 144 | 14.0% | 5,274 |
| Huerfano County | 568 | 17.2% | 138 | 21.0% | 3,310 |
| Custer County | 507 | 18.8% | 123 | 8.0% | 2,704 |
| Lake County | 501 | 10.5% | 122 | 7.0% | 4,760 |
| Conejos County | 492 | 12.3% | 119 | 16.0% | 4,007 |
| Kit Carson County | 481 | 12.8% | 117 | 9.0% | 3,740 |
| Saguache County | 478 | 13.2% | 116 | 17.0% | 3,634 |
| Rio Blanco County | 453 | 12.1% | 110 | 13.0% | 3,754 |
| Gilpin County | 412 | 11.4% | 100 | 9.0% | 3,608 |
| Ouray County | 403 | 15.3% | 98 | 5.0% | 2,624 |
| Washington County | 327 | 12.3% | 79 | 10.0% | 2,653 |
| Bent County | 314 | 8.8% | 76 | 27.0% | 3,582 |
| Lincoln County | 282 | 8.0% | 69 | 12.0% | 3,532 |
| Costilla County | 260 | 13.9% | 63 | 23.0% | 1,878 |
| Crowley County | 259 | 6.6% | 63 | 24.0% | 3,908 |
| Phillips County | 251 | 10.4% | 61 | 14.0% | 2,401 |
| Baca County | 216 | 12.2% | 52 | 23.0% | 1,768 |
| Dolores County | 178 | 13.7% | 43 | 17.0% | 1,297 |
| Sedgwick County | 163 | 13.5% | 40 | 16.0% | 1,202 |
| Cheyenne County | 122 | 12.1% | 30 | 11.0% | 1,006 |
| Jackson County | 100 | 14.6% | 24 | 21.0% | 685 |
| Kiowa County | 99 | 12.9% | 24 | 16.0% | 766 |
| Hinsdale County | 66 | 13.2% | 16 | 7.0% | 504 |
| Mineral County | 53 | 13.0% | 13 | 11.0% | 404 |
| San Juan County | 50 | 10.0% | 12 | 19.0% | 497 |
State brief and methodology
Estimates, not counts. The model rakes to CBO's national subject total and allocates by ACS microdata; state agencies hold the administrative data that would replace these figures.