On this page
- Guide to a postal service worker cover letter
- How to write a postal service worker cover letter
- A postal service worker cover letter example you can adapt
- Openings that work
- What counts as evidence for a craft job
- Which craft you are asking for, and why it matters
- Length, format and sending it
- Key takeaways
- FAQ
A postal service worker cover letter is a one-page letter that names the craft you are applying to, states the shifts you can actually work, gives your driving record if the job requires one, and describes the physical work you have already done.
It is a smaller document than most cover letters, because the United States Postal Service screens before it reads. Entry-level craft applications run through the USPS careers system and an online assessment, and the letter supports that rather than persuading around it.
Guide to a postal service worker cover letter
This guide and the corresponding postal service worker cover letter example will cover:
- How to structure the letter, paragraph by paragraph
- Why the craft and availability belong in the first two sentences
- What counts as evidence for a physical, shift-based job
- How the assessment changes the way you write the letter
- The openings that read as someone who will still be there in two years
How to write a postal service worker cover letter
ParagraphIts jobLength
- OpeningThe craft, the installation, your availability, your driving record2 to 3 sentences
- EvidenceShift starts, weight carried, volume moved, attendance4 to 5 sentences
- FitWhy this craft, and why this installation3 sentences
- CloseAssessment completed, veterans' preference, notice period2 to 3 sentences
Name the craft, because the assessment is tied to it
USPS entry-level craft jobs use the Virtual Entry Assessment, in four versions: 474 for mail carriers, 475 for mail handlers, 476 for mail processing clerks and 477 for customer service roles. Each takes about 30 to 45 minutes online, and you have 72 hours from the invitation to complete it. Fail one version and you cannot retake it for 12 months, although you may immediately take a different version for a job in another group (United States Postal Service, postal exams, 2026).
That makes the craft a decision rather than a preference. Say which installation too, because non-career assistants build relative standing within a specific installation, and state availability in plain days rather than as "flexible". Postal service workers commonly work Saturdays and some Sundays because delivery schedules require it (BLS Occupational Outlook Handbook, 2026).
A postal service worker cover letter example you can adapt
Adaptable postal service worker cover letter example
Dear Ms. Sandoval,
I am applying for the City Carrier Assistant position in the El Paso installation. I am available for early starts, Saturdays, Sundays and holidays, with no scheduling restrictions. I hold a valid Texas driver licence with six years of continuous unsupervised driving and no suspensions, revocations or at-fault accidents.
For the last three years I have worked as a delivery driver and warehouse loader for a regional parcel company in El Paso. I start at 4:00 am, unload and sort 900 to 1,200 parcels a shift, then run a fixed route of 85 to 110 stops in a company van, scanning every delivery. I lift and carry parcels up to 70 pounds repeatedly across an eight-hour shift, outdoors, in summer temperatures above 100 degrees. I have had no unscheduled absence in 24 months, including two December peak seasons.
I have read the realistic job preview and I know what the assistant years look like: six days a week, all weather, holidays, and no guaranteed schedule. I want the carrier craft specifically rather than whichever posting opens first, and I want to build relative standing in El Paso, which is where my family is and where I intend to stay. I speak English and Spanish and use both every day on my current route.
I completed Virtual Entry Assessment 474 and my Notice of Results is in my candidate profile. I served in the United States Army from 2018 to 2022 with an honourable discharge and am claiming 5-point veterans' preference, with my DD-214 uploaded. I can start on two weeks' notice. Thank you for your time.
Sincerely,
Ernesto Quintanilla
Openings that work
- Instead of
I am writing to express my interest in any available position
UseI am applying for the City Carrier Assistant position in the El Paso installation
- Instead of
I have a flexible schedule and can work whenever needed
UseI am available for early starts, Saturdays, Sundays and holidays, with no scheduling restrictions
- Instead of
I am a hard worker who is not afraid of physical labour
UseI lift and carry parcels up to 70 pounds across an eight-hour shift, outdoors, above 100 degrees
- Instead of
I have a good driving record
UseSix years of continuous unsupervised driving, no suspensions, revocations or at-fault accidents
What counts as evidence for a craft job
The work is physical, early, outdoors and six days a week. The evidence that matters describes exactly those conditions.
Kind of evidenceWhat it looks like in a sentence
- Shift startStarted at 4:00 am five to six days a week for three years
- WeightLifted and carried parcels up to 70 pounds repeatedly across an eight-hour shift
- VolumeUnloaded and sorted 900 to 1,200 parcels a shift
- Route workRan a fixed route of 85 to 110 stops a day, scanning every delivery
- WeatherWorked outdoors through summers above 100 degrees
- AttendanceNo unscheduled absence in 24 months, including two peak seasons
- DrivingSix years of continuous unsupervised driving with no at-fault accidents
Attendance is the line to lead with if you have it. Assistant roles fail on attrition more than on capability, and someone who has proved they turn up at 4:00 am in December is answering the question the installation actually has.
Which craft you are asking for, and why it matters
Do
- Name one craft and one installation.
- State availability as specific days.
- Give your driving history in full if you are applying to a carrier role, because USPS requires at least two years of continuous, documented unsupervised driving immediately preceding consideration and reviews records from every state you have lived in over the past five years (USPS Handbook EL-312, section 516).
- Claim veterans' preference by its correct category.
- Say you have read the realistic job preview and mean it.
Don’t
- Do not say you will take any position; it reads as someone who has not looked at the crafts.
- Do not write "flexible" when you mean particular days.
- Do not describe yourself as hardworking without a number beside it.
- Do not let the letter contradict the dates in your application, because the assessment asks about your work history too.
- Do not apply to a craft you do not want, because failing its assessment version costs you 12 months.
A shrinking occupation that still hires 32,200 people a year
Postal service worker employment is projected to fall 1 percent between 2025 and 2035, a loss of 6,400 jobs from a 2025 base of 488,500, while still producing about 32,200 openings a year, essentially all replacements for workers who leave (BLS Occupational Outlook Handbook, 27 August 2026).
The median annual wage was $59,880 as of May 2025, with postal service clerks at $62,130, mail carriers at $60,550, and mail sorters, processors and processing machine operators at $58,470 (BLS Occupational Outlook Handbook, May 2025).
The decline is attributed to sorting technology, the move of bills and correspondence online, and centralised delivery such as cluster mailboxes. For your letter it means the vacancy in front of you is a replacement, and the installation wants someone who will still be there when conversion to career status comes round.
Length, format and sending it
One page, four paragraphs, 250 to 350 words, because the application already holds your structured history.
PDF, named for yourself and the craft: ernesto-quintanilla-city-carrier-assistant-cover-letter.pdf. Upload it wherever the posting offers a document field. If there is none, keep it anyway: it is worth having in hand for the installation interview and it forces your own numbers straight.
Use the same figures as your resume and your application, since the assessment asks about your work history too. Our postal service worker resume example is written with the numbers used here.
Key takeaways
- Name one craft and one installation in the first sentence.
- State availability as specific days, not as "flexible".
- Give your driving record in full for any carrier role.
- Lead the evidence with shift start time, weight, volume and attendance.
- Say plainly that you understand what the assistant years involve.
- Claim veterans' preference by its correct category, with the document named.
- Keep every figure consistent with your resume and your application.
The postal service worker resume example uses the same story, the same numbers and the same header.
Postal service worker cover letter questions, answered
Does USPS even read cover letters?
Not always, and never before the assessment. The application system and the Virtual Entry Assessment come first. The letter matters at the installation stage, where a person is deciding among candidates who have all already passed, and there it does real work: craft, availability, driving record, attendance.
How long should it be?
One page, four paragraphs, 250 to 350 words. Shorter than a standard cover letter, because most of what an employer usually learns from a letter is already in the application.
Should I mention that I have completed the assessment?
Yes, in the closing, with the version number. It tells the reader you are already through the gate that removes most applicants, and it confirms you applied to the craft you say you want.
How do I write this with no work history at all?
Use what you have and be specific about conditions rather than titles: seasonal warehouse work, farm work, construction labour, a family business, military service, or school alongside a job. Then be exact about availability and your driving record. USPS requires at least two years of continuous, documented unsupervised driving for roles that need it (USPS Handbook EL-312, section 516), so without that, apply to a handler, clerk or processing craft instead.
Should I say I want to convert to a career position?
Yes, briefly. It is the honest reason most people take an assistant role and it signals that you intend to stay. City carrier assistants who reach 24 months of relative standing convert to part-time flexible career status within their installation under the National Agreement's memorandum of understanding (National Association of Letter Carriers, April 2024). Saying you want to build that standing there is stronger than any promise about work ethic.