USUnited States Postal Service logo

United States Postal Service Unclaimed

Delivery Services

www.usps.com

The United States Postal Service is the nation's mail delivery and logistics network, serving the American public with trusted, secure postal services.

United States Postal Service (USPS) is an independent establishment of the Executive Branch of the U.S. federal government that provides postal services nationwide. With a history dating to 1775, USPS delivers trusted, secure communication and operates a universal mail network that connects people and communities. It serves individuals, households, and businesses, offering mail delivery, logistics and related services through a nationwide network of post offices, facilities, and programs. USPS is guided by a mission to bind the nation together, pursue financial sustainability, and deliver service excellence while maintaining privacy and security. As a public service organization, USPS emphasizes accessibility, accountability, and customer care, adapting to changing technologies and market needs while maintaining its long-standing role in American civic life.

To bind the nation together by delivering trusted, secure, universal postal services to every community.

What we offer

Priority Mail Express

Service

Guaranteed fast delivery and tracking for urgent shipments.

www.usps.com/ship/priority-mail-express.htm

Priority Mail

Service

Fast and reliable shipping service with tracking and affordable rates.

www.usps.com/ship/priority-mail.htm

USPS Ground Advantage

Service

Reliable and cost-effective domestic shipping for packages with tracking.

www.usps.com/ship/ground-advantage.htm

First-Class Mail

Service

Fast and reliable mail delivery with tracking options for letters and parcels.

www.usps.com/ship/first-class-mail.htm

Priority Mail International

Service

Reliable and affordable international shipping options for letters and packages.

www.usps.com/international/priority-mail-international.htm

Priority Mail Express International

Service

Experience fast, trusted international shipping with Priority Mail Express International.

www.usps.com/international/priority-mail-express-international.htm

Informed Delivery

Service

Stay Updated on Your Mail and Packages with Informed Delivery.

informeddelivery.usps.com

USPS Connect

Service

Enhances eCommerce logistics with tailored shipping solutions for businesses.

www.usps.com/business/connect/

Advertising with Mail

Service

Reach your target audience effectively and affordably with USPS Advertising with Mail services.

www.usps.com/business/advertise-with-mail.htm

Label Broker for Business

Service

Streamline Package Shipping With Easy Label Creation.

www.usps.com/business/label-broker.htm

Returns Services

Service

Streamline your returns process with efficient services for businesses.

www.usps.com/business/return-services.htm

Postage Options

Service

Access Reliable Postage Solutions Tailored For Your Business Needs.

www.usps.com/business/postage-options.htm

Stamps

Conveniently send mail and packages with USPS stamps for reliable delivery.

store.usps.com/store/stamps

Click-N-Ship

Simplify Your Shipping Process with Click-N-Ship.

cnsb.usps.com/

USPS International Shipping

Service

Reliable global shipping options with tracking for packages and letters.

www.usps.com/business/international-shipping.htm

Market segments

Market size by segment

Growth potential (CAGR)

Direct mail marketing

64.8 Billion USD3.1% CAGR

Planning and execution of branded physical mail campaigns including radius marketing, holiday/promotional pieces, and turnkey fulfillment to drive local sales.

Ecommerce fulfillment

154.31 Billion USD11.62% CAGR

Multichannel order processing for direct-to-consumer and online brands, including returns management, platform integrations, custom packaging, and parcel shipping discounts.

International shipping and cross-border logistics

82 Billion USD7% CAGR

End-to-end international mailing and parcel services with customs support, tracking, predictable transit times, and money-back guarantees for time‑sensitive cross-border shipments.

Reverse logistics and asset recovery

18.47 Billion USD9.8% CAGR

Capabilities to optimize reverse logistics, returns management, refurbishment, lifecycle extension, and KPI systems to maximize value recovery and supply chain resilience.

Transactional mail and secure communications

18 Billion USD9% CAGR

Reliable, fast domestic mail services for bills, statements, legal notices and secure correspondence, combined with tracking, delivery guarantees, and digital mail preview for recipients.

More information about our offering

Priority Mail Express

Priority Mail Express offers fast and reliable domestic shipping with guaranteed delivery in 1-2 days. This service includes tracking, insurance, and delivery updates, ensuring your packages arrive on time and in perfect condition. Ideal for urgent shipments, it comes with a money-back guarantee if the package does not arrive on schedule.

  • Achieves 1-2 Days Delivery
    Utilizes priority handling to meet fast delivery times, making it perfect for urgent shipments.
  • Features Money-Back Guarantee
    Ensures reliability in service, as customers can receive a refund if their shipment is late.
  • Offers Real-Time Tracking
    Allows customers to monitor their package's journey and receive timely updates on its status.
  • Includes Up To $100 Insurance
    Protects your shipment against loss or damage, providing peace of mind during transit.

Priority Mail

Priority Mail is a fast and affordable shipping service offered by USPS, ensuring reliable delivery with options for flat-rate pricing and free packaging. It features tracking and delivery updates, making it ideal for both personal and business shipments.

  • Ensures Quick Delivery
    With Priority Mail, customers can expect delivery within 1-3 business days, making it an excellent choice for time-sensitive shipments.
  • Offers Real-Time Tracking
    Customers can monitor the status of their shipments with real-time tracking updates, ensuring peace of mind.
  • Simplifies Pricing
    Flat-rate boxes allow customers to send packages at a uniform rate, simplifying the shipping process and budgeting.
  • Access Free Supplies
    Customers can obtain free shipping supplies at their local post office or order online, facilitating easier packing and shipping.

USPS Ground Advantage

USPS Ground Advantage offers a reliable and cost-effective solution for shipping packages domestically. With a focus on efficiency, it ensures that packages are delivered promptly while providing tracking capabilities and flexible delivery options tailored to customer needs.

  • Offers Low Rates
    Designed to help users save money on shipping costs without compromising on service quality.
  • Guarantees Delivery Dates
    Provides assurance to customers that their items will reach recipients on promised dates.
  • Provides Tracking
    Empowers customers with full visibility over their shipment, ensuring peace of mind.
  • Enables Flexible Options
    Customers can select the delivery speed and service level that best meet their individual requirements.

First-Class Mail

First-Class Mail is the United States Postal Service's premier mail service for letters, postcards, and lightweight parcels. It is designed for fast and reliable delivery, ensuring your items are sent quickly and efficiently across the country. First-Class Mail includes sturdy envelopes, and provides tracking options, making it ideal for both personal and business correspondence. This service also offers delivery within one to three days, based on distance, and free package pickup options. With competitive pricing and a commitment to service excellence, First-Class Mail remains a trusted choice for sending important communications.

  • Delivers Within 1–3 Days
    Ensure your letters and packages reach their destination quickly, offering peace of mind for urgent communications.
  • Track Your Mail
    Stay informed about your package's journey, enhancing reliability and security for important deliveries.
  • Use Durable Envelopes
    Protect important documents while ensuring they arrive safely at their destination.
  • Schedule Free Pickups
    Save time by having USPS collect your packages directly, eliminating the need to visit a post office.

Priority Mail International

Priority Mail International offers reliable and affordable shipping to numerous destinations worldwide, providing customers with options for both speed and pricing. It is especially designed to ensure prompt delivery of letters and packages internationally with predictable transit times, tracking features, and free supplies. This service guarantees customs clearance and includes options for insurance to protect your valuable items during transit.

  • Provides Predictable Transit Times
    With clear service standards, you can easily track the shipping duration for different international destinations.
  • Track Your Packages
    Easily monitor the status of your shipments with real-time updates on their journey.
  • Includes Customs Clearance
    Enjoy worry-free shipping with assistance in navigating customs regulations for your mail and packages.
  • Get Free Shipping Supplies
    Access a variety of free shipping boxes, envelopes, and labels to simplify your international shipping process.
  • Flat Rate Shipping Options Available
    Ship your items internationally at a consistent price, simplifying your budgeting for shipping costs.
  • Option to Insure Your Shipments
    Safeguard your valuable shipments against loss or damage by opting for insurance coverage.

Priority Mail Express International

Priority Mail Express International offers fast, reliable international shipping with delivery to over 180 countries. It provides 7-day service with a money-back guarantee and includes tracking, delivery updates, and customs forms. This service is ideal for time-sensitive shipments, ensuring quick and dependable delivery worldwide.

  • Ensures Timely Delivery
    With a money-back guarantee, customers can trust their packages will arrive on time, making it a reliable choice for urgent international shipments.
  • Delivers Quickly
    This expedited service ensures that packages reach their destination swiftly, which is essential for time-sensitive documents and goods.
  • Track Shipments Instantly
    Customers can easily track their packages and receive updates on their delivery status directly from the USPS website.
  • Simplifies Customs Process
    USPS provides guidance and resources to ensure all customs paperwork is completed accurately, preventing delays in international delivery.

Informed Delivery

Informed Delivery by USPS allows users to preview their incoming mail and manage their packages. This service provides digital images of letter-sized mailpieces arriving soon in their mailbox. Users receive notifications via email or app, simplifying mail management and enhancing package tracking, while ensuring users stay informed about their deliveries.

  • Preview Incoming Mail
    Receive images of your incoming mail before it arrives. Manage expectations and schedule accordingly.
  • Receive Notifications About Packages
    Stay informed on your package journey with timely updates, enabling better planning for deliveries.
  • Manage Mail Anywhere
    Conveniently manage your mail from your smartphone or computer, ensuring you never miss an important delivery.
  • Secure Your Mail
    Ensure that your incoming mail is safeguarded through verification measures, giving you peace of mind.

USPS Connect

USPS Connect offers flexible and tailored shipping solutions aimed at enhancing small and medium-sized businesses' logistics capabilities. This service streamlines eCommerce operations by providing local and regional shipping options that prioritize speed and efficiency. With USPS Connect, businesses can leverage the extensive USPS delivery network to ensure timely package arrival and customer satisfaction.

  • Facilitates Seamless Online Integration
    Integration with eCommerce platforms reduces manual errors and speeds up the order fulfillment process.
  • Offers Faster Local Deliveries
    Localized shipping ensures packages are delivered quickly, enhancing customer satisfaction and promoting repeat business.
  • Features Flexible Pricing Options
    The service provides various pricing tiers that allow businesses to choose the best fit for their shipping frequency and budget.
  • Enhances Customer Communication
    Informed Delivery keeps customers informed about their packages, reducing inquiries and enhancing service experience.
  • Offers Flexible Delivery Locations
    Smart Locker options allow for safe, secure package pickup, accommodating customer preferences in delivery.

Advertising with Mail

Advertising with Mail provides a variety of options for businesses to reach potential customers effectively. Services include Every Door Direct Mail (EDDM), customized direct mail, political mail, and promotional incentives, enabling businesses to target specific demographics and regions. The service is designed to be cost-effective, allowing businesses to navigate and plan their advertising campaigns through user-friendly online tools. With the USPS network, businesses can ensure reliable and timely delivery to their chosen audiences.

  • Target Every Mailbox Easily
    With EDDM, businesses can select postal routes, making it easy to target specific neighborhoods and demographics, significantly enhancing outreach and engagement.
  • Personalize Your Mailings
    Customized direct mail allows for increased personalization, which can lead to higher response rates and improve customer satisfaction.
  • Drive Engagement with Promotions
    Use promotions within your direct mail campaigns to entice customers to act, leading to improved sales and customer engagement.
  • Facilitate Political Outreach
    Political mail services help organizations reach constituents effectively while meeting specific regulatory requirements.
  • Increase Visibility of Your Messaging
    Informed Delivery provides customers with an email preview of their mail, increasing the chance of engagement with your advertisements.

Label Broker for Business

Label Broker for Business enables business customers to create and print shipping labels directly from USPS. This service streamlines the shipping process, allowing easy label creation without the need for a USPS account. Ideal for eCommerce and small businesses, Label Broker ensures efficient deliveries and secure handling of packages. The service supports various shipping options, enhancing flexibility and operational efficiency.

  • Create Shipping Labels Easily
    This feature allows businesses to generate shipping labels on-demand, eliminating the need for an account and making the process fast and user-friendly.
  • Guarantee Package Safety
    With USPS’s trusted logistics, businesses can rest assured their packages are handled securely and efficiently from pick-up to delivery.
  • Select Flexible Shipping Methods
    Businesses can choose from various shipping options, including Priority Mail and First-Class Mail, ensuring they meet customer demands for speed and efficiency.
  • Leverage USPS Support Tools
    Businesses can access USPS tools, such as tracking, to manage shipments effectively and maintain communication with customers.

Returns Services

Returns Services by USPS provides businesses with the tools needed for easy and efficient management of product returns. This service is designed to streamline return processes, offering customers seamless options and enhancing overall satisfaction. The program allows businesses to manage returns by utilizing USPS's extensive network, ensuring timely collection and processing of returned items.

  • Provide Prepaid Labels
    Allows customers to return items easily, enhancing satisfaction and streamlining operations.
  • Enable Return Tracking
    Maintain visibility over returns, improving logistics and customer communication.
  • Access Return Processing Support
    Receive assistance with returns management, ensuring smoother operations for the business.
  • Select Suitable Return Options
    Adapt return solutions to fit specific business processes, increasing efficiency.

Postage Options

Postage Options enables businesses to verify postage, choose shipping methods, and access various mailing solutions efficiently. It simplifies postage management with real-time pricing, providing businesses adaptable solutions for their mailing needs.

  • Verify Postage Accurately
    With accurate postage verification, businesses can avoid mailing errors, enhance cost-effectiveness, and improve customer satisfaction by ensuring timely deliveries.
  • Select From Multiple Mailing Options
    Accessing various mailing options ensures businesses can meet unique customer demands, optimizing delivery speed and cost according to their requirements.
  • Access Real-Time Pricing
    Dynamic pricing allows businesses to stay competitive by adjusting mailing costs in real-time, leading to better budget management and pricing strategies.

Stamps

USPS stamps facilitate the mailing of letters and parcels, offering both domestic and international postage solutions. With a wide range of designs and denominations, stamps allow users to commemorate occasions while sending mail. Ideal for personal and business use, they ensure reliable and secure delivery.

  • Use Stamps Long-Term
    Buy now, use later—never worry about postage increases, as Forever stamps maintain their value indefinitely.
  • Buy Stamps Anytime
    Access stamps without hassle—available for purchase 24/7 online or at convenient retail locations.
  • Choose Unique Designs
    From commemorative stamps to forever stamps, users can choose from a diverse collection that reflects personal interests and significant events.

Click-N-Ship

Click-N-Ship is an online platform from the United States Postal Service (USPS) that allows customers to print shipping labels, pay for postage, and manage their shipping needs from home or office. This service is designed for both individuals and businesses looking to streamline their shipping processes.

  • Streamlines Packaging Process
    Users can generate and print shipping labels instantly, saving time and increasing efficiency.
  • Pay Anytime, Anywhere
    Available 24/7, users can handle all postage payments online, making it convenient for all shipping needs.
  • Track and Manage Shipments
    Stay updated on shipment status and manage delivery times effectively through the online dashboard.
  • Global Shipping Solutions
    Easily select shipping preferences for different delivery destinations, making it suitable for any customer or business.
  • Convenient Collection Options
    Users can arrange package pickups at their convenience, ensuring smooth delivery without additional travel.

USPS International Shipping

USPS International Shipping provides reliable and affordable shipping solutions for sending packages and letters worldwide. With various options like Priority Mail International and First-Class Package International, customers can choose the service that best fits their needs. Shipping can be tracked, and customs forms can be completed conveniently online. Designed for both businesses and individuals, USPS International Shipping simplifies global mail delivery while ensuring timely service and security.

  • Monitor Package Delivery
    Stay informed with tracking that updates you on the status and location of your package throughout the shipping process.
  • Select Your Preferred Service
    Different services are available to match your delivery speed and cost preferences, ensuring that you can find the right option for your needs.
  • Ensure Timely Delivery
    When you need to meet a deadline, select guaranteed services that prioritize timely arrival of your shipments.
  • Simplify Customs Procedures
    Make international shipping hassle-free by managing customs documentation digitally, ensuring compliance and accuracy.
  • Predict Shipping Costs
    Flat rate shipping gives you a clear idea of costs and simplifies budgeting for global logistics.

References

Methodology and sourcing behind the figures shown above.

Direct mail marketing

Estimate based on The Business Research Company global Direct Mail Advertising report: market size reported at $64.8 billion in 2025 with a forecast to $74.46 billion by 2030 (CAGR 3.1%). The same source notes a near-term increase to $65.96 billion in 2026 (CAGR 1.8% year-over-year).

Ecommerce fulfillment

Primary estimate uses Mordor Intelligence’s 2026 market size (USD 154.31B) and 2026–2031 CAGR (11.62%) as the baseline. Other search results show similar mid-2020s sizes (Precedence: ~USD 141.35B in 2025) and alternative CAGR estimates in the low-to-mid teens (Zion/LinkedIn ~13.1%, Precedence ~14.2%), supporting a near-term growth potential of ~11–14% CAGR. Mordor was selected as the primary source for the consolidated estimate.

International shipping and cross-border logistics

Estimate reflects synthesis of multiple market reports in the search results. Several sources place global cross-border logistics/e‑commerce logistics in the tens of billions (MarketIntelo $52.3B; WiseGuy $81.8B), while one vendor (MRFR) reports a much larger cross‑border e‑commerce logistics definition (~$569B) that likely covers a broader set of logistics services. Regional research (Mordor) shows strong APAC growth and double‑digit CAGR locally. I selected ~USD 82B as a 2025 market-size estimate (close to the mid/high reported values) and a 7.0% CAGR as a conservative midpoint between lower (3.9%) and higher (≈11%) reported CAGRs, reflecting steady e‑commerce driven expansion and stronger growth in APAC.

Reverse logistics and asset recovery

Search results show divergent estimates due to scope differences (service revenue vs. total value of returned goods). Credence and Strategic report much larger 2024 figures (likely broader scopes); TrendX specifically reports reverse-logistics service market revenue (USD 18.47B in 2025) with a 9.8% CAGR. I selected TrendX’s revenue definition (service/market revenue for returns, refurbishment, asset recovery) as the basis for the market-size and CAGR estimate.

Transactional mail and secure communications

Estimate based on published sizes for adjacent secure-communications and transactional-email submarkets in the search results, adjusted to avoid double-counting. Sources show secure communication platforms (USD 6.86B, 2024), broad email market and transactional-email infrastructure (USD 12.6B email market; transactional email infrastructure forecast USD 6.8B), email-encryption (USD 9.3B in 2025) and secure mobile communications (US$26.4B in 2026). Combining these overlapping digital secure-communication and transactional-email figures and adding a conservative allowance for physical transactional mail services yields an estimated global addressable market around USD 18 billion (near-term basis). Growth potential (CAGR ~9%) is a conservative midpoint between lower secure-communications forecasts (~6% CAGR) and higher encryption/mobile-security segments (15–20%+), reflecting digital migration, regulatory/compliance demand, and modest ongoing demand for physical transactional mail.

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