Jobs / Office and administrative support / 43-5051.00
Postal Service Clerks
Perform any combination of tasks in a United States Postal Service (USPS) post office, such as receive letters and parcels; sell postage and revenue stamps, postal cards, and stamped envelopes; fill out and sell money orders; place mail in pigeon holes of mail rack or in bags; and examine mail for correct postage. Includes postal service clerks employed by USPS contractors.
- US jobs
- 73,720
- Median wage
- $62,130 a year
- Job family
- Office and administrative support
Can agents do the work of postal service clerks?
We read the evidence at the level of the job family, Office and administrative support:
- Task levelStrongOn computer-use and office-task benchmarks, top agents pass most tasks: 90.2% on OSWorld-Verified (humans: 72.4%), 83.1% on SpreadsheetBench, and 63.3% on WorkArena L1 under the standard protocol. Limits: many top entries are self-submitted and not re-run by the maintainers, and on TheAgentCompany's multi-step workplace tasks the best agent resolves 42.9%.
- Project levelPartialOnly adjacent evidence. OpenAI reports that GPT-5.5's GDPval deliverables won or tied against professionals' work in 84.9% of comparisons, but GDPval tasks are one-shot and fully specified. No benchmark in our collection tests multi-day administrative work, such as running a calendar or a purchasing process.
Benchmarks for the job family
These cover work in office and administrative support, not always this occupation's tasks.
- 1846 EloClaude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) · 23 Sep 2026Unrated
- OSWorld-Verifiedby HKU, Salesforce AI Research, Carnegie Mellon University and University of Waterloo90.2%Intelligence-Indeed Agent · 25 Jul 2026Saturated
- 42.9%TTE-MatrixAgent + DeepSeek-V3.2 · 10 Nov 2025Emerging
Typical tasks
From O*NET 31.0. Core tasks first. Few of these tasks have a benchmark today.
- Weigh letters and parcels, compute mailing costs based on type, weight, and destination, and affix correct postage.
- Check mail to ensure correct postage and that packages and letters are in proper condition for mailing.
- Sort incoming and outgoing mail, according to type and destination, by hand or by operating electronic mail-sorting and scanning devices.
- Obtain signatures from recipients of registered or special delivery mail.
- Answer questions regarding mail regulations and procedures, postage rates, and post office boxes.
- Transport mail from one work station to another.
- Sell and collect payment for products such as stamps, prepaid mail envelopes, and money orders.
- Keep money drawers in order, and record and balance daily transactions.
- Register, certify, and insure letters and parcels.
- Complete forms regarding changes of address, or theft or loss of mail, or for special services such as registered or priority mail.
- Receive letters and parcels, and place mail into bags.
- Put undelivered parcels away, retrieve them when customers come to claim them, and complete any related documentation.
Other job titles for this occupation (39)
Bulk Mail Technician · Clerk · Distribution Clerk · Part Time Flexible Clerk (PTF Clerk) · Postal Clerk · Sales and Distribution Clerk · Sales and Service Associate (SSA) · Window Clerk · Annuitant HCA (Annuitant Holiday Clerk Assistant) · Bulk Clerk · Bulk Mail Clerk · Business Mail Entry Clerk · City Carrier · City Carrier Assistant (CCA) · Counter Clerk · Delivery Associate · Delivery Clerk · Dock Clerk · Mail Agent · Mail Caller · Mail Clerk · Mail Handler · Mail Order Clerk · Mailing Clerk · Mailroom Associate · Mailroom Clerk · Money Order Clerk · Package Handler · Package Sorter · Package Switcher · Parcel Post Clerk · Post Office Clerk · Postal Service Clerk · Postal Service Window Clerk · Postal Support Employee · Rural Carrier · Rural Carrier Associate · Special Delivery Clerk · Stamp Clerk