San Marcos Annex Post Office

210 S Stagecoach Trl, San Marcos, TX 78666

Contact Numbers

Phone: 512-392-4831
Fax: 512-392-4842
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Last Collection Times

Monday 5:20pm
Tuesday 5:20pm
Wednesday 5:20pm
Thursday 5:20pm
Friday 5:20pm
Saturday 3:00am
Sunday 3:00am

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • General Delivery
  • Pickup Accountable Mail
  • Pickup Hold Mail

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

San Marcos
900 Bugg Ln Ste 110a
0.0 mile away

307 Lockhart St
4.9 miles away

2585 Allison Rd
6.1 miles away

555 Veterans Dr
6.2 miles away


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