Independent guide · not the SSA
SSI · Washington
SSI in Washington: state supplement, recipients and offices
In December 2025, 134,335 people in Washington got SSI, and SSA paid them $105.7 million that month. SSA pays no state supplement here; any extra money comes from the state itself.
Does Washington add money to SSI?
State supplement: n/d. Washington is not in SSA's January 2026 table of supplements that SSA pays for states. If Washington 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 Washington
Washington is a “1634 state”: under an agreement with the state, SSA makes the Medicaid decision for people who get SSI and meet the citizenship or immigration rules, so most do not need a separate Medicaid application.
How SSI and Medicaid connect in each stateWho gets SSI in Washington
- Under 1813,258
- Ages 18 to 6476,381
- 65 or older44,696
- Also get Social Security benefits40,477
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 39 counties
| County | Total | Aged | Blind or disabled | Also get Social Security | Paid in Dec 2025 |
|---|---|---|---|---|---|
| Adams | 365 | 27 | 338 | 122 | $254,000 |
| Asotin | 646 | 16 | 630 | 225 | $470,000 |
| Benton | 3,802 | 287 | 3,515 | 1,025 | $3.0 million |
| Chelan | 1,206 | 118 | 1,088 | 438 | $883,000 |
| Clallam | 1,697 | 103 | 1,594 | 602 | $1.3 million |
| Clark | 8,079 | 1,219 | 6,860 | 2,241 | $6.8 million |
| Columbia | 141 | n/d | n/d | 53 | $132,000 |
| Cowlitz | 3,501 | 154 | 3,347 | 1,048 | $2.9 million |
| Douglas | 486 | 45 | 441 | 162 | $337,000 |
| Ferry | 203 | 18 | 185 | 86 | $147,000 |
| Franklin | 1,625 | 203 | 1,422 | 449 | $1.3 million |
| Garfield | 38 | n/d | n/d | 15 | $26,000 |
| Grant | 2,016 | 127 | 1,889 | 588 | $1.6 million |
| Grays Harbor | 2,730 | 116 | 2,614 | 969 | $2.3 million |
| Island | 835 | 72 | 763 | 314 | $642,000 |
| Jefferson | 538 | 65 | 473 | 235 | $376,000 |
| King | 32,769 | 9,336 | 23,433 | 8,915 | $25.5 million |
| Kitsap | 3,894 | 272 | 3,622 | 1,229 | $3.1 million |
| Kittitas | 569 | 28 | 541 | 217 | $475,000 |
| Klickitat | 559 | 29 | 530 | 207 | $408,000 |
| Lewis | 2,445 | 101 | 2,344 | 846 | $1.8 million |
| Lincoln | 274 | 23 | 251 | 109 | $182,000 |
| Mason | 1,464 | 58 | 1,406 | 486 | $1.2 million |
| Okanogan | 1,102 | 74 | 1,028 | 415 | $813,000 |
| Pacific | 667 | 39 | 628 | 263 | $502,000 |
| Pend Oreille | 452 | 30 | 422 | 165 | $342,000 |
| Pierce | 16,880 | 2,106 | 14,774 | 4,852 | $13.4 million |
| San Juan | 116 | 32 | 84 | 59 | $70,000 |
| Skagit | 1,944 | 148 | 1,796 | 674 | $1.4 million |
| Skamania | 173 | 13 | 160 | 65 | $177,000 |
| Snohomish | 10,883 | 2,442 | 8,441 | 2,959 | $8.4 million |
| Spokane | 13,650 | 997 | 12,653 | 4,270 | $10.9 million |
| Stevens | 1,188 | 60 | 1,128 | 433 | $898,000 |
| Thurston | 5,117 | 442 | 4,675 | 1,693 | $4.2 million |
| Wahkiakum | 106 | n/d | n/d | 40 | $75,000 |
| Walla Walla | 1,269 | 96 | 1,173 | 435 | $995,000 |
| Whatcom | 3,902 | 520 | 3,382 | 1,303 | $2.9 million |
| Whitman | 604 | 28 | 576 | 201 | $466,000 |
| Yakima | 6,400 | 486 | 5,914 | 2,069 | $5.0 million |
"n/d" marks numbers SSA hides to protect privacy in small counties.
More for Washington
Questions people ask
How much is SSI in Washington 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 Washington 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 Washington?
Washington is a “1634 state”: under an agreement with the state, SSA makes the Medicaid decision for people who get SSI and meet the citizenship or immigration rules, so most do not need a separate Medicaid application.
Where do I apply for SSI in Washington?
With SSA: online at ssa.gov, by phone at 1-800-772-1213 or at one of the 22 Social Security offices in Washington. 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.