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 cities ranked by number of beneficiaries in Wisconsin.
Field Offices Ranking by Number of Beneficiaries in Wisconsin (2018)
| Rank | Field Office | Number of Beneficiaries | 
|---|---|---|
| 1 | Waukesha | 107,435 | 
| 2 | Madison | 91,845 | 
| 3 | Eau Claire | 86,930 | 
| 4 | Green Bay | 80,040 | 
| 5 | Greenfield | 79,895 | 
| 6 | Appleton | 69,340 | 
| 7 | Janesville | 66,205 | 
| 8 | Wausau | 53,965 | 
| 9 | West Bend | 49,145 | 
| 10 | Milwaukee, North | 48,335 | 
| 11 | Wisconsin Rapids | 47,700 | 
| 12 | Racine | 45,465 | 
| 13 | La Crosse | 44,935 | 
| 14 | Superior | 38,840 | 
| 15 | Oshkosh | 38,350 | 
| 16 | Fond du Lac | 38,115 | 
| 17 | Sheboygan | 31,295 | 
| 18 | Kenosha | 30,135 | 
| 19 | Portage | 29,945 | 
| 20 | Rhinelander | 29,410 | 
| 21 | Rice Lake | 28,005 | 
| 22 | Milwaukee, Downtown | 26,670 | 
| 23 | Marinette | 21,335 | 
| 24 | Lancaster | 20,505 | 
| 25 | Manitowoc | 19,225 | 
| 26 | Milwaukee, West | 10,050 | 

 
               
                 
                 
                 
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