Independent guide · not the SSA
SSI · Illinois
SSI in Illinois: state supplement, recipients and offices
In December 2025, 244,025 people in Illinois got SSI, and SSA paid them $187.5 million that month. SSA pays no state supplement here; any extra money comes from the state itself.
Does Illinois add money to SSI?
State supplement: n/d. Illinois is not in SSA's January 2026 table of supplements that SSA pays for states. If Illinois pays a supplement, the state pays it, not SSA, and we found no current official table for it. Ask the state agency that runs social services. For questions about SSI itself, call SSA at 1-800-772-1213.
2027 federal amounts
- Tuesday, Dec. 1, 2026SSI payment for December 2026
- Nov. 10, 2026 · Nov. 18, 2026 · Nov. 25, 2026SSDI in November 2026, by birth date (1st–10th, 11th–20th, 21st–31st)
SSI and Medicaid in Illinois
Illinois is a “209(b) state”: it uses at least one Medicaid rule stricter than SSI's, so SSI does not by itself mean Medicaid. People apply to the state Medicaid agency, and income can be reduced by medical bills (spend-down).
How SSI and Medicaid connect in each stateWho gets SSI in Illinois
- Under 1835,013
- Ages 18 to 64131,839
- 65 or older77,173
- Also get Social Security benefits73,181
December 2025. The "aged" category above counts people who qualified by age; some people 65 or older qualified earlier by disability.
SSI recipients by county
All 102 counties
| County | Total | Aged | Blind or disabled | Also get Social Security | Paid in Dec 2025 |
|---|---|---|---|---|---|
| Adams | 1,237 | 50 | 1,187 | 428 | $998,000 |
| Alexander | 280 | 15 | 265 | 101 | $219,000 |
| Bond | 271 | 18 | 253 | 109 | $205,000 |
| Boone | 567 | 51 | 516 | 158 | $440,000 |
| Brown | 77 | n/d | n/d | 24 | $74,000 |
| Bureau | 477 | 30 | 447 | 157 | $352,000 |
| Calhoun | 81 | n/d | n/d | 23 | $67,000 |
| Carroll | 233 | 12 | 221 | 91 | $155,000 |
| Cass | 238 | 28 | 210 | 98 | $164,000 |
| Champaign | 3,206 | 253 | 2,953 | 1,046 | $2.4 million |
| Christian | 623 | 24 | 599 | 198 | $510,000 |
| Clark | 274 | n/d | n/d | 95 | $215,000 |
| Clay | 329 | 16 | 313 | 130 | $247,000 |
| Clinton | 258 | n/d | n/d | 62 | $185,000 |
| Coles | 1,163 | 44 | 1,119 | 390 | $868,000 |
| Cook | 129,034 | 20,781 | 108,253 | 37,404 | $99.3 million |
| Crawford | 346 | 14 | 332 | 97 | $264,000 |
| Cumberland | 136 | n/d | n/d | 48 | $93,000 |
| De Witt | 247 | n/d | n/d | 84 | $203,000 |
| DeKalb | 1,180 | 67 | 1,113 | 312 | $965,000 |
| Douglas | 244 | 18 | 226 | 68 | $174,000 |
| DuPage | 8,267 | 2,504 | 5,763 | 2,277 | $6.2 million |
| Edgar | 413 | 14 | 399 | 136 | $322,000 |
| Edwards | 71 | 0 | 71 | 23 | $50,000 |
| Effingham | 396 | 21 | 375 | 143 | $288,000 |
| Fayette | 362 | 22 | 340 | 135 | $279,000 |
| Ford | 180 | n/d | n/d | 53 | $135,000 |
| Franklin | 1,278 | 86 | 1,192 | 438 | $957,000 |
| Fulton | 699 | 34 | 665 | 219 | $509,000 |
| Gallatin | 164 | n/d | n/d | 55 | $157,000 |
| Greene | 322 | 13 | 309 | 102 | $271,000 |
| Grundy | 451 | 28 | 423 | 142 | $374,000 |
| Hamilton | 162 | 12 | 150 | 66 | $118,000 |
| Hancock | 295 | 16 | 279 | 103 | $227,000 |
| Hardin | 145 | n/d | n/d | 59 | $107,000 |
| Henderson | 114 | n/d | n/d | 41 | $80,000 |
| Henry | 638 | 44 | 594 | 227 | $476,000 |
| Iroquois | 516 | 22 | 494 | 182 | $385,000 |
| Jackson | 1,633 | 106 | 1,527 | 610 | $1.2 million |
| Jasper | 136 | n/d | n/d | 58 | $99,000 |
| Jefferson | 867 | 57 | 810 | 296 | $640,000 |
| Jersey | 317 | 11 | 306 | 115 | $248,000 |
| Jo Daviess | 160 | n/d | n/d | 58 | $116,000 |
| Johnson | 262 | 21 | 241 | 106 | $250,000 |
| Kane | 4,790 | 845 | 3,945 | 1,358 | $3.7 million |
| Kankakee | 2,517 | 138 | 2,379 | 747 | $1.8 million |
| Kendall | 859 | 144 | 715 | 233 | $658,000 |
| Knox | 1,271 | 59 | 1,212 | 435 | $981,000 |
| LaSalle | 1,736 | 133 | 1,603 | 561 | $1.3 million |
| Lake | 8,089 | 1,728 | 6,361 | 2,210 | $6.2 million |
| Lawrence | 294 | 14 | 280 | 99 | $209,000 |
| Lee | 514 | 22 | 492 | 159 | $367,000 |
| Livingston | 481 | 21 | 460 | 167 | $369,000 |
| Logan | 401 | 14 | 387 | 120 | $319,000 |
| Macon | 3,013 | 130 | 2,883 | 1,002 | $2.3 million |
| Macoupin | 912 | 31 | 881 | 322 | $667,000 |
| Madison | 5,076 | 219 | 4,857 | 1,641 | $3.9 million |
| Marion | 1,166 | 57 | 1,109 | 349 | $822,000 |
| Marshall | 154 | n/d | n/d | 43 | $109,000 |
| Mason | 312 | 10 | 302 | 96 | $270,000 |
| Massac | 408 | 23 | 385 | 175 | $275,000 |
| McDonough | 629 | 18 | 611 | 211 | $495,000 |
| McHenry | 2,227 | 365 | 1,862 | 641 | $1.8 million |
| McLean | 1,828 | 104 | 1,724 | 591 | $1.4 million |
| Menard | 161 | n/d | n/d | 57 | $121,000 |
| Mercer | 165 | n/d | n/d | 64 | $120,000 |
| Monroe | 138 | n/d | n/d | 40 | $96,000 |
| Montgomery | 592 | 25 | 567 | 198 | $450,000 |
| Morgan | 781 | 33 | 748 | 269 | $580,000 |
| Moultrie | 151 | n/d | n/d | 42 | $109,000 |
| Ogle | 560 | 40 | 520 | 181 | $411,000 |
| Peoria | 4,821 | 264 | 4,557 | 1,489 | $3.9 million |
| Perry | 418 | 21 | 397 | 161 | $313,000 |
| Piatt | 108 | n/d | n/d | 40 | $88,000 |
| Pike | 287 | 16 | 271 | 99 | $225,000 |
| Pope | 93 | n/d | n/d | 35 | $67,000 |
| Pulaski | 202 | n/d | n/d | 83 | $143,000 |
| Putnam | 50 | 0 | 50 | 13 | $38,000 |
| Randolph | 454 | 20 | 434 | 170 | $349,000 |
| Richland | 390 | 21 | 369 | 142 | $280,000 |
| Rock Island | 2,967 | 273 | 2,694 | 953 | $2.2 million |
| Saline | 927 | 48 | 879 | 300 | $712,000 |
| Sangamon | 4,523 | 228 | 4,295 | 1,407 | $3.7 million |
| Schuyler | 84 | n/d | n/d | 35 | $88,000 |
| Scott | 69 | n/d | n/d | 25 | $51,000 |
| Shelby | 287 | 11 | 276 | 102 | $221,000 |
| St. Clair | 6,504 | 403 | 6,101 | 2,061 | $5.0 million |
| Stark | 51 | n/d | n/d | 17 | $36,000 |
| Stephenson | 969 | 41 | 928 | 324 | $772,000 |
| Tazewell | 1,876 | 112 | 1,764 | 635 | $1.4 million |
| Union | 501 | 23 | 478 | 184 | $328,000 |
| Vermilion | 2,575 | 86 | 2,489 | 801 | $2.0 million |
| Wabash | 171 | n/d | n/d | 68 | $140,000 |
| Warren | 290 | 15 | 275 | 110 | $231,000 |
| Washington | 152 | n/d | n/d | 43 | $122,000 |
| Wayne | 259 | n/d | n/d | 94 | $180,000 |
| White | 394 | 23 | 371 | 115 | $304,000 |
| Whiteside | 936 | 38 | 898 | 310 | $690,000 |
| Will | 7,324 | 1,250 | 6,074 | 1,975 | $5.7 million |
| Williamson | 1,530 | 78 | 1,452 | 513 | $1.1 million |
| Winnebago | 6,969 | 521 | 6,448 | 2,024 | $5.5 million |
| Woodford | 270 | n/d | n/d | 75 | $200,000 |
"n/d" marks numbers SSA hides to protect privacy in small counties.
More for Illinois
Questions people ask
How much is SSI in Illinois in 2027?
The federal maximum is $1,029 a month for one person and $1,544 for a couple, before any state supplement and minus countable income.
Does Illinois add a state supplement?
Not through SSA. Any state supplement is paid by the state; its amount is n/d here.
Do people with SSI get Medicaid in Illinois?
Illinois is a “209(b) state”: it uses at least one Medicaid rule stricter than SSI's, so SSI does not by itself mean Medicaid. People apply to the state Medicaid agency, and income can be reduced by medical bills (spend-down).
Where do I apply for SSI in Illinois?
With SSA: online at ssa.gov, by phone at 1-800-772-1213 or at one of the 47 Social Security offices in Illinois. Applying is free.
Independent guide · not the SSA. Green Tips 1 US is a private guide. We are not the Social Security Administration, we are not part of it, and we do not take applications. Estimates are an estimate only; only SSA decides your SSI amount.
Sources: SSA, SSI Recipients by State and County, December 2025 (ssi_sc25); SSA POMS SI 01415.058, Federally Administered Optional Supplementary Payment Programs for January 2026 (TN 95, 08-26); SSA POMS SI 01715.010, Medicaid and the SSI program (TN 9, 09-26); SSA 2027 COLA fact sheet; SSA field office data file (FO-Address-Open-Close-Times.csv, Web Archive copy of Aug 28, 2026). Official site, typed by hand: ssa.gov. Read in October 2026; data dates as noted.