Social Security fax numbers in Illinois: 47 field offices
Social Security has 47 field offices in Illinois. The fax numbers below come from SSA’s own field-office directory, read 2 months ago · 09-02-2026. Find the office handling your case, then send your documents from your phone.
Use your Social Security notice to find which office has your case. Social Security has moved almost every office to a toll-free fax line, so if your notice prints an older number, the one here is the more recent of the two.
Official source · From the Social Security field-office directory, read 2 months ago · 09-02-2026.
| Office | Fax number | Last verified | Verified by |
|---|---|---|---|
| Alton | (833) 950-3115 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Aurora | (833) 950-3109 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Back of the Yards | (833) 902-2646 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Belleville | (833) 580-0167 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Bloomingdale | (833) 950-3451 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Carbondale | (833) 950-3441 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Champaign | (833) 950-2810 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago Heights | (833) 950-3111 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago Lawndale | (833) 950-2184 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago Loop | (833) 787-1783 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago North | (833) 950-2806 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago South | (833) 950-2808 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago SW Suburban | (833) 950-3059 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago-East | (833) 950-2802 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago-NR NW | (833) 950-3113 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago-NW | (833) 950-3433 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago-SE | (833) 950-3435 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Chicago-West | (833) 950-2804 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Danville | (833) 950-2794 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Decatur | (833) 950-3105 Fax this number | 2 months ago · 09-02-2026 | Official website |
| East St Louis | (833) 436-4144 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Effingham | (833) 950-3449 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Elgin | (833) 950-3437 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Evanston | (833) 950-3101 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Freeport | (833) 950-3447 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Galesburg | (833) 950-3103 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Harrisburg | (833) 950-2798 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Hillside | (833) 950-3099 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Joliet | (833) 950-2796 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Kankakee | (833) 950-3439 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Litchfield | (833) 950-3057 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Mount Prospect | (833) 950-3733 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Mount Vernon | (833) 950-2792 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Normal | (833) 950-3107 Fax this number | 2 months ago · 09-02-2026 | Official website |
| North Riverside | (833) 950-3097 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Pekin | (833) 950-3061 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Peoria | (833) 950-2502 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Peru | (833) 950-3445 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Quincy | (833) 950-2508 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Rock Island | (833) 950-2506 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Rockford | (833) 950-2800 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Springfield | (833) 950-2504 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Sterling | (833) 950-3443 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Waukegan | (833) 950-2510 Fax this number | 2 months ago · 09-02-2026 | Official website |
| West Frankfort | (833) 950-3707 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Woodridge | (833) 950-2770 Fax this number | 2 months ago · 09-02-2026 | Official website |
| Woodstock | (833) 950-3063 Fax this number | 2 months ago · 09-02-2026 | Official website |
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