Missouri expanded Medicaid, so the federal work requirement that takes effect January 1, 2027 applies to its expansion adults. About 327,567 of them (9.0% of an expansion pool of 350,174) 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 164,291 people in Missouri lose coverage by 2034: 154,464 of them still eligible but lost to paperwork and reporting failures, and 9,827 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. Missouri scores 67 of 100 on this model's ex parte capability index, a mid band; its eligibility system is FAMIS.
Key figures
| Measure | Missouri |
|---|---|
| Expansion state | Yes |
| Subject to the requirement via waiver | No |
| Expansion pool (adults 19 to 64) | 350,174 |
| Adults subject, strict definition | 327,567 |
| Adults subject, permissive definition | 321,016 |
| Share of expansion pool subject | 9.0% |
| Projected coverage loss by 2034 | 164,291 |
| Hardship exception status | Not adopting |
| Early implementer | No |
| Ex parte capability score (0 to 100) | 67 (mid) |
Who is subject in Missouri
Of the 327,567 subject adults, 35% already work 80 or more hours a month and 58% are not working. 38% have a child under 14 at home. Among those not working, 60% report a disability and 15% are caregivers.
| Characteristic | Share of subject adults |
|---|---|
| Age 19-24 | 12% |
| Age 25-34 | 22% |
| Age 35-44 | 22% |
| Age 45-54 | 18% |
| Age 55-64 | 26% |
| Not working | 58% |
| 1 to 19 hours a month | 0% |
| 20 to 79 hours a month | 6% |
| 80 or more hours a month (meets the bar) | 35% |
| Not working: Disabled | 60% |
| Not working: Caregiver | 15% |
| Not working: Postpartum | 0% |
| Not working: Student | 2% |
| Not working: Other | 24% |
Why eligible people lose coverage
Of the 164,291 projected to lose coverage in Missouri, 154,464 meet the requirement or qualify for an exemption but fail to document it. 54,042 of those are working people who cannot prove their hours through data the state can see, and 100,422 qualify for an exemption the state does not detect automatically.
| Group | Projected to lose coverage |
|---|---|
| Variable shifts / on-call work | 14,574 |
| Multiple part-time jobs (aggregation failure) | 10,566 |
| Full-time students not auto-verified | 9,567 |
| Self-employed (other) | 8,674 |
| Cash-paid construction & trades | 3,638 |
| Volunteering / job training | 3,624 |
| Seasonal: agriculture, hospitality, food service | 2,133 |
| Gig / courier (DoorDash, Uber, Lyft, Instacart) | 1,264 |
| Medically frail without auto-match | 42,714 |
| Parent caregivers of children ≤13 without auto-match | 17,969 |
| Caregivers of a disabled adult | 14,921 |
| SUD treatment not flagged in claims data | 6,511 |
| American Indian / Alaska Native (tribal exemption) | 6,293 |
| Kinship caregivers (non-parent) of children ≤13 | 5,373 |
| Recent incarceration (data-match gap) | 3,544 |
| Other categorical exemptions (foster, AYA cancer, SNAP/TANF) | 2,819 |
| Pregnancy / postpartum data lag | 279 |
Can the state renew people automatically?
The ex parte capability index blends the state's observed automatic-renewal rate (84% in CMS eligibility-processing data), the wage, disability, and other data sources it can query, and its history of churn. Missouri's composite score is 67 (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 | 67 |
| Observed ex parte | 84 |
| Core capability | 18 |
| Data sources | 50 |
| Historical churn | 50 |
How subjects overlap across exemption categories
| Combination | Adults | Share |
|---|---|---|
| None of the four | 102,780 | 31.4% |
| Medically frail | 69,004 | 21.1% |
| Working ≥ qualifying hours / income + Parent caregiver of child ≤13 | 53,616 | 16.4% |
| Working ≥ qualifying hours / income | 44,865 | 13.7% |
| Parent caregiver of child ≤13 | 25,784 | 7.9% |
| Full-time student | 7,331 | 2.2% |
| Working ≥ qualifying hours / income + Full-time student | 6,058 | 1.8% |
| Working ≥ qualifying hours / income + Medically frail | 5,410 | 1.7% |
Counties in Missouri
Subject adults concentrate: St. Louis County (52,337), Jackson County (35,739), and St. Charles County (22,078) account for 34% of the state's subject population.
| County | Adults subject | Subject rate | Projected loss | Poverty rate | Working-age population |
|---|---|---|---|---|---|
| St. Louis County | 52,337 | 9.1% | 26,249 | 10.0% | 574,238 |
| Jackson County | 35,739 | 8.3% | 17,925 | 14.0% | 429,839 |
| St. Charles County | 22,078 | 9.0% | 11,073 | 5.0% | 246,060 |
| Greene County | 16,703 | 9.1% | 8,377 | 15.0% | 183,606 |
| St. Louis city | 13,173 | 7.0% | 6,607 | 20.0% | 187,572 |
| Clay County | 12,684 | 8.2% | 6,361 | 8.0% | 155,156 |
| Jefferson County | 11,921 | 8.7% | 5,979 | 8.0% | 137,324 |
| Boone County | 11,085 | 9.3% | 5,560 | 18.0% | 119,692 |
| Jasper County | 6,386 | 8.9% | 3,203 | 18.0% | 72,040 |
| Cass County | 5,833 | 9.2% | 2,925 | 7.0% | 63,676 |
| Franklin County | 5,734 | 9.4% | 2,876 | 8.0% | 60,886 |
| Platte County | 5,641 | 8.6% | 2,829 | 7.0% | 65,996 |
| Christian County | 4,709 | 8.9% | 2,362 | 9.0% | 53,084 |
| Cape Girardeau County | 4,687 | 9.6% | 2,351 | 15.0% | 48,739 |
| Buchanan County | 4,415 | 9.0% | 2,214 | 17.0% | 49,183 |
| Cole County | 3,937 | 8.7% | 1,974 | 9.0% | 45,146 |
| Newton County | 3,377 | 10.0% | 1,694 | 15.0% | 33,704 |
| St. Francois County | 3,333 | 8.2% | 1,672 | 18.0% | 40,698 |
| Taney County | 3,318 | 10.7% | 1,664 | 16.0% | 31,044 |
| Lincoln County | 3,208 | 8.6% | 1,609 | 12.0% | 37,226 |
| Phelps County | 3,062 | 11.4% | 1,536 | 18.0% | 26,912 |
| Johnson County | 3,011 | 8.8% | 1,510 | 12.0% | 34,137 |
| Camden County | 2,796 | 12.3% | 1,402 | 13.0% | 22,823 |
| Callaway County | 2,324 | 8.7% | 1,166 | 9.0% | 26,771 |
| Pettis County | 2,260 | 9.3% | 1,133 | 15.0% | 24,428 |
| Pulaski County | 2,245 | 6.6% | 1,126 | 15.0% | 34,184 |
| Webster County | 2,195 | 9.8% | 1,101 | 16.0% | 22,490 |
| Stone County | 2,131 | 13.2% | 1,069 | 14.0% | 16,180 |
| Howell County | 2,118 | 9.6% | 1,062 | 23.0% | 22,154 |
| Butler County | 2,080 | 8.8% | 1,043 | 21.0% | 23,534 |
| Warren County | 2,077 | 9.7% | 1,042 | 10.0% | 21,419 |
| Barry County | 2,072 | 10.9% | 1,039 | 18.0% | 18,919 |
| Lawrence County | 2,067 | 9.7% | 1,037 | 15.0% | 21,308 |
| Scott County | 1,972 | 9.3% | 989 | 16.0% | 21,302 |
| Laclede County | 1,918 | 9.4% | 962 | 17.0% | 20,340 |
| Polk County | 1,800 | 9.8% | 903 | 17.0% | 18,427 |
| Lafayette County | 1,798 | 9.6% | 902 | 9.0% | 18,756 |
| Adair County | 1,670 | 10.6% | 837 | 24.0% | 15,732 |
| Stoddard County | 1,547 | 9.7% | 776 | 16.0% | 16,028 |
| Marion County | 1,499 | 9.4% | 752 | 14.0% | 15,862 |
| Saline County | 1,459 | 10.8% | 732 | 13.0% | 13,496 |
| Miller County | 1,417 | 10.1% | 710 | 16.0% | 14,038 |
| Dunklin County | 1,394 | 9.4% | 699 | 22.0% | 14,904 |
| Nodaway County | 1,380 | 10.9% | 692 | 19.0% | 12,614 |
| Texas County | 1,341 | 9.6% | 672 | 20.0% | 13,940 |
| Benton County | 1,338 | 13.1% | 671 | 18.0% | 10,186 |
| Ray County | 1,308 | 9.9% | 656 | 12.0% | 13,196 |
| Morgan County | 1,300 | 11.5% | 652 | 20.0% | 11,352 |
| McDonald County | 1,297 | 9.4% | 650 | 17.0% | 13,721 |
| Audrain County | 1,290 | 9.2% | 647 | 18.0% | 14,028 |
| Crawford County | 1,235 | 9.8% | 619 | 15.0% | 12,658 |
| Washington County | 1,226 | 9.1% | 615 | 19.0% | 13,501 |
| Henry County | 1,185 | 9.8% | 594 | 15.0% | 12,116 |
| Randolph County | 1,184 | 8.2% | 594 | 17.0% | 14,416 |
| Clinton County | 1,130 | 9.3% | 567 | 11.0% | 12,173 |
| Ste. Genevieve County | 1,069 | 10.3% | 536 | 9.0% | 10,425 |
| Andrew County | 1,040 | 10.3% | 521 | 8.0% | 10,044 |
| Perry County | 1,013 | 9.4% | 508 | 11.0% | 10,763 |
| Vernon County | 1,011 | 9.5% | 507 | 18.0% | 10,648 |
| Wright County | 984 | 9.7% | 494 | 20.0% | 10,106 |
| Pike County | 911 | 8.9% | 457 | 16.0% | 10,235 |
| Dallas County | 897 | 9.4% | 450 | 21.0% | 9,548 |
| Cooper County | 897 | 9.4% | 450 | 13.0% | 9,585 |
| Gasconade County | 875 | 10.7% | 439 | 12.0% | 8,161 |
| Bates County | 873 | 9.5% | 438 | 19.0% | 9,176 |
| Cedar County | 853 | 11.2% | 428 | 18.0% | 7,624 |
| Macon County | 846 | 10.4% | 424 | 11.0% | 8,117 |
| New Madrid County | 813 | 9.3% | 408 | 17.0% | 8,745 |
| Dent County | 808 | 10.2% | 405 | 17.0% | 7,912 |
| Osage County | 790 | 10.3% | 396 | 8.0% | 7,672 |
| Pemiscot County | 731 | 9.0% | 367 | 29.0% | 8,097 |
| Moniteau County | 709 | 8.2% | 355 | 11.0% | 8,674 |
| Livingston County | 709 | 8.6% | 356 | 10.0% | 8,226 |
| Douglas County | 703 | 11.5% | 353 | 20.0% | 6,114 |
| Madison County | 671 | 9.4% | 337 | 12.0% | 7,138 |
| Howard County | 670 | 11.8% | 336 | 13.0% | 5,662 |
| Lewis County | 644 | 11.4% | 323 | 16.0% | 5,668 |
| Barton County | 637 | 10.0% | 319 | 22.0% | 6,349 |
| Linn County | 637 | 10.0% | 319 | 17.0% | 6,376 |
| Wayne County | 629 | 10.7% | 315 | 25.0% | 5,890 |
| Montgomery County | 626 | 9.7% | 314 | 15.0% | 6,467 |
| Ralls County | 597 | 10.6% | 299 | 12.0% | 5,648 |
| Bollinger County | 594 | 10.0% | 298 | 15.0% | 5,935 |
| St. Clair County | 588 | 11.8% | 295 | 16.0% | 4,982 |
| Ozark County | 568 | 12.7% | 285 | 22.0% | 4,480 |
| Ripley County | 562 | 9.6% | 282 | 21.0% | 5,876 |
| Mississippi County | 549 | 8.0% | 276 | 24.0% | 6,894 |
| Hickory County | 544 | 12.7% | 273 | 18.0% | 4,272 |
| Grundy County | 531 | 10.7% | 266 | 17.0% | 4,961 |
| Monroe County | 526 | 11.6% | 264 | 16.0% | 4,553 |
| Iron County | 509 | 9.7% | 255 | 20.0% | 5,270 |
| Caldwell County | 504 | 10.2% | 253 | 16.0% | 4,922 |
| Daviess County | 498 | 11.2% | 250 | 14.0% | 4,442 |
| Oregon County | 491 | 10.7% | 246 | 23.0% | 4,608 |
| DeKalb County | 486 | 7.5% | 244 | 10.0% | 6,508 |
| Maries County | 478 | 10.0% | 240 | 17.0% | 4,762 |
| Carroll County | 469 | 10.2% | 235 | 9.0% | 4,614 |
| Harrison County | 464 | 10.9% | 233 | 16.0% | 4,266 |
| Dade County | 450 | 11.0% | 226 | 17.0% | 4,106 |
| Chariton County | 432 | 11.6% | 217 | 13.0% | 3,742 |
| Shannon County | 405 | 10.5% | 203 | 15.0% | 3,851 |
| Clark County | 378 | 10.7% | 190 | 11.0% | 3,535 |
| Reynolds County | 338 | 10.1% | 170 | 18.0% | 3,350 |
| Shelby County | 334 | 10.6% | 168 | 15.0% | 3,146 |
| Gentry County | 320 | 9.4% | 161 | 15.0% | 3,394 |
| Sullivan County | 319 | 9.9% | 160 | 15.0% | 3,216 |
| Carter County | 302 | 10.5% | 152 | 21.0% | 2,866 |
| Atchison County | 298 | 10.8% | 149 | 12.0% | 2,754 |
| Putnam County | 263 | 10.9% | 132 | 12.0% | 2,414 |
| Holt County | 251 | 11.3% | 126 | 9.0% | 2,212 |
| Scotland County | 251 | 10.8% | 126 | 7.0% | 2,312 |
| Knox County | 246 | 12.5% | 123 | 13.0% | 1,962 |
| Schuyler County | 225 | 10.7% | 113 | 10.0% | 2,106 |
| Mercer County | 201 | 11.1% | 101 | 15.0% | 1,818 |
| Worth County | 129 | 13.2% | 65 | 17.0% | 980 |
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.