New York · Checked Against SSA's Locator October 1, 2026
The closest Social Security office to Mount Kisco, NY is the Peekskill Social Security Office in Peekskill, about 11 miles away, phone (877) 840-5778, open Monday to Friday, 9:00 AM to 4:00 PM. White Plains Social Security Office is about 11 miles away.
One Park Place, 3rd Fl
Peekskill, NY 10566
Call (877) 840-5778 for the Peekskill Social Security OfficeDirections to the Peekskill Social Security Office
Fax: (833) 950-2964
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
297 Knollwood Rd, Suite 4a
White Plains, NY 10607
Call (866) 331-8134 for the White Plains Social Security OfficeDirections to the White Plains Social Security Office
Fax: (833) 950-2376
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
2 Landmark Square, Suite 105
Stamford, CT 06901
Call (866) 770-1881 for the Stamford Social Security OfficeDirections to the Stamford Social Security Office
Fax: (833) 950-2658
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
240 West Nyack Road
West Nyack, NY 10994
Call (866) 755-4334 for the West Nyack Social Security OfficeDirections to the West Nyack Social Security Office
Fax: (833) 950-2378
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
131 West St
Danbury, CT 06810
Call (866) 275-7821 for the Danbury Social Security OfficeDirections to the Danbury Social Security Office
Fax: (833) 950-2664
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
85 Harrison St, Street Level
New Rochelle, NY 10801
Call (855) 210-1026 for the New Rochelle Social Security OfficeDirections to the New Rochelle Social Security Office
Fax: (833) 902-2551
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
Straight-line distance from the center of Mount Kisco (U.S. Census Gazetteer) to each office's address (U.S. Census Bureau geocoder). Office hours and phone numbers from SSA's office data, checked against SSA's Office Locator on October 1, 2026; confirm with SSA's Office Locator before you go.
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SSA assigns Mount Kisco's ZIP code, 10549, to the Peekskill Social Security Office in Peekskill. SSA assigns offices by ZIP code, so the office to use is the one listed for your ZIP.
| ZIP code | Office SSA assigns | Distance |
|---|---|---|
| 10549 | Peekskill Social Security Office for ZIP code 10549 | 12 miles |
Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps Mount Kisco (U.S. Census Bureau, 2020 ZIP Code Tabulation Areas). Distance is straight-line, from the center of the ZIP code to the office.
Where people in nearby communities go, and how far it is. Each area's office is the one SSA assigns to its ZIP codes.
Nanuet is about 17 miles southwest of central Mount Kisco. SSA assigns its ZIP code, 10954, to the West Nyack Social Security Office at 240 West Nyack Road, West Nyack, open Monday to Friday, 9:00 AM to 4:00 PM.
Cold Spring is about 19 miles northwest of central Mount Kisco. SSA assigns its ZIP code, 10516, to the Poughkeepsie Social Security Office at 4 Academy St, Poughkeepsie, open Monday to Friday, 9:00 AM to 4:00 PM. The Peekskill Social Security Office is closer to central Cold Spring (about 9.1 miles, against 20 miles), but it isn't the office SSA assigns.
Haverstraw is about 11 miles west of central Mount Kisco. SSA assigns its ZIP code, 10927, to the West Nyack Social Security Office at 240 West Nyack Road, West Nyack, open Monday to Friday, 9:00 AM to 4:00 PM.
Yorktown Heights is about 5.3 miles northwest of central Mount Kisco. SSA assigns its ZIP code, 10598, to the Peekskill Social Security Office at One Park Place, 3rd Fl, Peekskill, open Monday to Friday, 9:00 AM to 4:00 PM.
West Haverstraw is about 13 miles west of central Mount Kisco. SSA assigns its ZIP codes (10923 and 10993) to the West Nyack Social Security Office at 240 West Nyack Road, West Nyack, open Monday to Friday, 9:00 AM to 4:00 PM.
Elmsford is about 11 miles southwest of central Mount Kisco. SSA assigns its ZIP code, 10523, to the White Plains Social Security Office at 297 Knollwood Rd, Suite 4a, White Plains, open Monday to Friday, 9:00 AM to 4:00 PM.
Bronxville is about 19 miles south of central Mount Kisco. SSA assigns its ZIP code, 10708, to the Yonkers Social Security Office at 20 South Broadway, Suite 500, Yonkers, open Monday to Friday, 9:00 AM to 4:00 PM.
Verplanck is about 13 miles west of central Mount Kisco. SSA assigns its ZIP code, 10596, to the Peekskill Social Security Office at One Park Place, 3rd Fl, Peekskill, open Monday to Friday, 9:00 AM to 4:00 PM.
Irvington is about 14 miles southwest of central Mount Kisco. Its ZIP codes are split between offices: 10503 goes to the Yonkers Social Security Office in Yonkers; 10533 goes to the White Plains Social Security Office in White Plains.
West Nyack is about 15 miles southwest of central Mount Kisco. SSA assigns its ZIP code, 10994, to the West Nyack Social Security Office at 240 West Nyack Road, West Nyack, open Monday to Friday, 9:00 AM to 4:00 PM.
SSA also meets people by video at partner sites: Norwalk Public Library in Norwalk (about 17 miles) and Bristol Snr Ctr in Bristol (about 54 miles). Ask an office whether a video appointment fits your visit.
You can often replace a card, update your address or get a benefit letter online with a my Social Security account. If you need to go in, check what to bring.
There isn't an office in Mount Kisco, NY itself. The closest is the Peekskill Social Security Office, One Park Place, 3rd Fl, Peekskill, NY 10566, about 11 miles away.
SSA assigns Mount Kisco's ZIP code, 10549, to the Peekskill Social Security Office in Peekskill. SSA assigns offices by ZIP code, and the assigned office isn't always the closest one. Look up your ZIP code in the table on this page or in SSA's Office Locator.
The Peekskill Social Security Office is open Monday to Friday, 9:00 AM to 4:00 PM, according to SSA's office data (checked against SSA's Office Locator on October 1, 2026). Offices close on weekends and federal holidays.
SSA lists (877) 840-5778 for the Peekskill Social Security Office. SSA's national number is 1-800-772-1213.
Every Social Security office in New York
Independent site, not affiliated with the Social Security Administration. Office addresses, phone numbers and hours come from SSA's public office data. To apply for benefits or manage your record, go to SSA directly at ssa.gov.