The Old-Age, Survivors, and Disability Insurance (OASDI) is a program of the Social Security Administration funded primarily through payroll taxes. It was signed into law in 1935 by then-President Franklin D. Roosevelt.
The OASDI program aims to supplement a worker's lost wages due to retirement, disability or death of a spouse.
The following table shows Social Security field offices ranked by number of retired workers in Indiana.
Field Offices Ranking by Number of Retired Workers in Indiana (2018)
| Rank | Field Office | Number of Retired Workers |
|---|---|---|
| 1 | Fort Wayne | 70,600 |
| 2 | Anderson | 66,010 |
| 3 | Evansville | 55,755 |
| 4 | Columbus | 52,345 |
| 5 | South Bend | 49,680 |
| 6 | Indianapolis, Northwest | 48,820 |
| 7 | New Albany | 46,165 |
| 8 | Bloomington | 43,205 |
| 9 | Elkhart | 41,850 |
| 10 | Indianapolis | 40,615 |
| 11 | Lafayette | 40,320 |
| 12 | Indianapolis, Northeast | 35,125 |
| 13 | Merrillville | 34,855 |
| 14 | Muncie | 33,410 |
| 15 | Kokomo | 28,655 |
| 16 | Madison | 28,630 |
| 17 | Terre Haute | 28,570 |
| 18 | Valparaiso | 27,540 |
| 19 | Richmond | 22,165 |
| 20 | Hammond | 21,465 |
| 21 | Marion | 19,605 |
| 22 | Auburn | 19,600 |
| 23 | Crawfordsville | 19,160 |
| 24 | Michigan City | 16,290 |
| 25 | Vincennes | 13,450 |
| 26 | Gary | 11,825 |
| 27 | Danville, IL | 5,305 |
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