Texas · Checked Against SSA's Locator October 1, 2026

Social Security Offices Near Blanco, TX

Where Is the Social Security Office Nearest Blanco, TX?

The closest Social Security office to Blanco, TX is the San Marcos Social Security Office in San Marcos, about 33 miles away, phone (866) 388-8515, open Monday to Friday, 9:00 AM to 4:00 PM. Austin South Social Security Office is about 36 miles away.

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Closest Social Security Offices to Blanco, TX

Straight-line distance from the center of Blanco (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.

Map of Social Security Offices Near Blanco

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Social Security office

Which Social Security Office Serves Your ZIP Code in Blanco?

SSA splits Blanco's 4 ZIP codes among 3 offices: 2 to the Austin South Social Security Office, 1 to the Kerrville Social Security Office and 1 to the San Antonio Central Social Security Office. For 3 of them, the assigned office isn't the closest one, so check your ZIP before you go.

Social Security office assigned to each ZIP code in Blanco
ZIP codeOffice SSA assignsDistance
78027Kerrville Social Security Office for ZIP code 78027Closest: San Antonio Central Social Security Office, 31 miles38 miles
78070San Antonio Central Social Security Office for ZIP code 7807026 miles
78606Austin South Social Security Office for ZIP code 78606Closest: San Marcos Social Security Office, 35 miles38 miles
78635Austin South Social Security Office for ZIP code 78635Closest: Kerrville Social Security Office, 39 miles42 miles

ZIP codes 78606 and 78635 go to the Austin South Social Security Office, 5508 US-290 W, Bldg B, Austin.

ZIP code 78027 goes to the Kerrville Social Security Office, 1060 Guadalupe St, Kerrville.

ZIP code 78070 goes to the San Antonio Central Social Security Office, 402 Isom Rd, San Antonio.

Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps Blanco (U.S. Census Bureau, 2020 ZIP Code Tabulation Areas). Distance is straight-line, from the center of the ZIP code to the office.

Social Security Offices Near Areas Around Blanco

Where people in nearby communities go, and how far it is. Each area's office is the one SSA assigns to its ZIP codes.

Social Security Office Near Canyon Lake

Canyon Lake is about 18 miles southeast of central Blanco. Its ZIP codes are split between offices: 78070 and 78132 go to the San Antonio Central Social Security Office in San Antonio; 78133 and 78623 go to the Seguin Social Security Office in Seguin.

More on Social Security offices near Canyon Lake

How to Get an Appointment at the San Marcos Social Security Office

SSA asks you to make an appointment before you visit an office. You can schedule one online on SSA's appointment page by answering a few questions; the appointment may be by phone or in person, and you can change or cancel it from the confirmation email or text.

To book by phone, call the San Marcos Social Security Office at (866) 388-8515, or SSA's national number, 1-800-772-1213 (TTY 1-800-325-0778), Monday through Friday, 8 a.m. to 7 p.m. local time. Help is available in English, Spanish and other languages.

See office hours and appointments for the best times to call and visit.

Video Appointments Near Blanco

SSA also meets people by video at partner sites: San Antonio Hud - Alamo Community College District Eastside in San Antonio (about 45 miles) and Medina County - Castroville in Castroville (about 58 miles). Ask an office whether a video appointment fits your visit.

Can You Skip the Trip?

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.

Social Security Offices Near Other Texas Cities

Frequently Asked Questions

Where Is the Social Security Office in Blanco?

There isn't an office in Blanco, TX itself. The closest is the San Marcos Social Security Office, 900 Bugg Lane, Suite 200, San Marcos, TX 78666, about 33 miles away.

Which Social Security Office Serves My ZIP Code in Blanco?

SSA splits Blanco's 4 ZIP codes among 3 offices: 2 to the Austin South Social Security Office, 1 to the Kerrville Social Security Office and 1 to the San Antonio Central Social Security Office. 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.

What Are Social Security Office Hours Near Blanco?

The San Marcos 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.

What Is the Phone Number for the Social Security Office Near Blanco?

SSA lists (866) 388-8515 for the San Marcos Social Security Office. SSA's national number is 1-800-772-1213.

How Do I Make an Appointment at the Social Security Office Near Blanco?

Schedule online on SSA's appointment page, where the appointment may be by phone or in person, or call the San Marcos Social Security Office at (866) 388-8515 or SSA at 1-800-772-1213 (TTY 1-800-325-0778), Monday through Friday, 8 a.m. to 7 p.m. local time. SSA asks you to make an appointment before visiting an office.

Every Social Security office in Texas

Sources

  1. Social Security Administration, field office and resident station data (updated March 9, 2026)
  2. SSA Office Locator (offices and ZIP code assignments, checked October 1, 2026)
  3. U.S. Census Bureau: geocoder, 2023 Gazetteer files and 2020 ZIP Code Tabulation Area relationship files
  4. SSA: Make an appointment
  5. SSA: Contact by phone
  6. SSA: Office locator guidance (appointments and Card Centers)

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.