USPS-Approved Mailboxes in Pennsylvania
Cluster & Pedestal Multi-Family Options
U.S. Mail Supply provides USPS-approved mailboxes for multi-family
properties throughout Pennsylvania. We offer rugged, high-performance
options for multi-unit housing projects and new developments. Our lineup
includes cluster box units (CBUs), pedestal-mounted systems and other
compliant mailbox products. Be sure to verify installation regulations
with your local postmaster before ordering.
Mail Package Drop
Mail Package Drop/Mail Chest In-Ground Pedestal
Florence 8 Tenant Cluster Mailbox (CBU) Traditional Decorative w/ Pedestal #1570-8V2
Available Finish options
Postal Grey
Dark Bronze
Black
White
Forest Green
Sandstone
Florence 4 Unit Outdoor Parcel Locker w/ Pedestal #1590-T2
Available Finish options
- Postal Grey
- Dark Bronze
- Black
- White
- Forest Green
- Sandstone
Florence 16 Tenant Cluster Mailbox (CBU) w/ Pedestal #1570-16
Available Finish options
- Postal Grey
- Dark Bronze
- Black
- White
- Forest Green
- Sandstone
Front-Loading Horizontal Mailboxes – 35 Doors
Available Finish options
Anodized Aluminum
4-Door 3500 Series Vertical Mailbox
Available Finish options
- Sandstone
Bronze
Aluminum
Double Letter Locker Collection Box-Front Access
Available Finish options
- Black
- White
Tan
Gray- Bronze
Multi-Family Mailboxes for New Property Developments in PA
Pennsylvania’s growing multi-family housing market calls for durable and secure mail delivery systems. USPS-approved mailboxes offer easy access for residents and meet all current postal regulations in new developments.
U.S. Mail Supply provides dependable mailbox systems suited for apartments, townhomes and condominiums. Our cluster and pedestal mailboxes deliver long-term durability and straightforward installation.
U.S. Mail Supply Has Multi-Family Mailbox Solutions For
- Apartment Complexes
- Condominiums
- Townhome Communities
- Student Housing
- Senior Living Facilities
- Military Housing
- Public Housing Authorities
- Mixed-Use Developments
- Affordable Housing Projects
- Property Management Companies
- Real Estate Developers
- New Multi-Family Construction Projects
- Renovation & Retrofit Projects
- HOAs (Homeowners Associations)
- Section 8 and Government-Sponsored Housing
Requirements for Multi-Family Mailboxes in PA
Mailbox regulations in Pennsylvania are primarily governed by the United States Postal Service (USPS) standards, local municipal codes and specific requirements for multifamily dwellings.
It’s essential to consult with local authorities or the local postmaster to comply with any additional regulations or standards specific to your area.
USPS Mailbox Requirements
Placement and Height
Mailboxes in Pennsylvania must be installed 6 to 8 inches back from the curb or road edge, with the bottom of the mailbox or mail entry point positioned 41 to 45 inches above the ground or road surface.
Address Visibility
Each mailbox must clearly display the address number, with numerals at least 1 inch high, placed on the front or flag side for visibility.
Cluster Box Units (CBUs)
For new construction or major renovations, USPS requires the use of STD-4C Horizontal Mailboxes or Cluster Box Units (CBUs). The highest tenant lock must be no more than 67 inches above the finished floor and the lowest must be at least 28 inches above the finished floor.
Parcel Locker Ratio
In multi-family housing, there must be at least one parcel locker for every five mailbox compartments in new installations.
Pennsylvania-Specific Mailbox Requirements
Mailbox Supports
Mailboxes placed along Pennsylvania state roads must be installed in the public right-of-way using sturdy, crash-resistant supports. The Pennsylvania Department of Transportation (PennDOT) recommends wood or steel posts and advises against masonry or decorative materials. Swing-away or cantilever-style posts are encouraged to reduce damage.
Locking & Parcel Delivery
Locking mailboxes are allowed in Pennsylvania if USPS-approved. Slots must be large enough to accept regular mail and unfolded Priority envelopes. For centralized mail delivery, USPS requires parcel lockers in a minimum 1:5 ratio to tenant compartments.
Mailbox Placement
Curbside mailboxes should be mounted 41–45 inches above the road surface and set 6–8 inches back from the curb or shoulder. Boxes must face the direction of travel and remain visible and accessible to postal carriers.
ADA Compliance
Multi-family mailbox installations must meet ADA reach range standards. At least one mailbox must be no higher than 48 inches from the finished floor. Parcel lockers must sit at least 15 inches off the ground and USPS master locks should fall between 36–48 inches.
Requirements by Property Type
Site-Constructed Single-Family Developments
Developers must coordinate with the USPS during the design phase, as centralized mail delivery with secure parcel lockers is the standard for new communities. If new homes are within one block of existing ones, they may adopt the same delivery method pending USPS review; otherwise, current centralized delivery standards apply.
Mobile or Trailer Home Developments
Apartment Communities
Use USPS-approved 4C centralized mailbox units with at least one parcel locker per five mailboxes, installed near main entrances and accessible to carriers. Outdoor units require USPS approval, must avoid streets or sidewalks and include a canopy with lighting and weather protection.
Student Housing & Off-Campus Dormitories
USPS delivers mail in bulk to a designated representative for distribution within dormitories, with no individual mailbox delivery provided. Dormitories—defined by shared living spaces—require early coordination with a USPS Growth Manager and may need named designees to accept mail.
*See the USPS National Delivery Planning Standards: A Guide for Builders and Developers for more information.
Fastest Growing Multi-Family Property Investments in Pennsylvania
Pennsylvania’s multi-family housing market is growing steadily, with
development activity concentrated in the state’s largest metros.
Cities like Philadelphia and Pittsburgh are leading the way, fueled by
rising demand for rental housing, urban revitalization efforts and
shifting lifestyle preferences. With increasing interest from both
in-state and out-of-state investors, Pennsylvania continues to
strengthen its position in the Mid-Atlantic’s rental housing sector.
New construction and adaptive reuse projects are reshaping urban
neighborhoods, especially near university corridors and transit
hubs.
Other Pennsylvania cities are also making significant strides in the multi-family sector:
- Philadelphia-Camden-Wilmington leads the state, ranking among the top 20 U.S. metros for new apartment deliveries, supported by strong demand from students, professionals and retirees.
- Pittsburgh continues to expand its rental inventory, with an emphasis on mixed-use developments and infill projects near innovation districts.
- Allentown-Bethlehem-Easton is emerging as a multi-family growth hub in eastern Pennsylvania, thanks to population gains and migration from higher-cost metros.
As Pennsylvania’s urban centers evolve, U.S. Mail Supply helps support new developments with secure, USPS-approved mail and parcel delivery systems tailored to modern multi-family communities.
Top Multi-Family Property Management Firms in PA
Pennsylvania’s multi-family property management landscape is thriving, driven by ongoing urban investment and growing demand from renters in key markets like Philadelphia, Pittsburgh and the Lehigh Valley. From student-oriented complexes to mixed-use downtown developments, management firms play a vital role in maintaining secure, well-managed communities. U.S. Mail Supply provides USPS-approved mailbox systems statewide—whether cluster box units in dense urban apartments or pedestal mailboxes in suburban settings—to help with reliable mail delivery and tenant satisfaction.
Property Management, Inc.
PMI has been a trusted name since 1967, managing apartments, student housing, HOAs and manufactured-home communities across Central Pennsylvania. Known for full-service offerings and local expertise.
Daniel Woods Real Estate Company
Daniel Woods offers full-service, multi-family property management in Philadelphia and surrounding neighborhoods, focusing on hands‑on service, regular inspections and open communication with owners and tenants.
Choose U.S. Mail Supply for Your Multi-Family Mailbox
- USPS Compliance Guaranteed
- Constructed With High-Quality Materials
- Custom Design & Sizing Options
- Nationwide Delivery Network
- Woman-Owned Business
- Installation Support
- USPS & Unit Quantity Guidance
- Volume Discounts
- Solutions For Every Multi-family Property Type
Equip your multi-family development with the best USPS-approved mailboxes in Pennsylvania. Contact U.S. Mail Supply today for a consultation and to explore our range of cluster, pedestal and other mailboxes for multi-family properties.
USPS-Approved Mailbox FAQ
Where can I buy mailboxes in Pennsylvania?
USPS does not sell mailboxes. In Pennsylvania, you can purchase USPS-approved mailboxes from U.S. Mail Supply, hardware retailers or specialized vendors. Products include commercial, residential, centralized and wall-mounted types.
What mailboxes are approved by USPS in Pennsylvania?
Mailboxes labeled “Approved by the Postmaster General” and “U.S. Mail” meet USPS federal regulations. Some municipalities may add local guidelines, so verify with your local post office.
How do I get a new mailbox in Pennsylvania?
Buy a USPS-approved mailbox and install it per USPS regulations. For new construction or replacements, confirm the mailbox aligns with USPS placement and dimension standards.
Can I customize my mailbox in Pennsylvania?
Custom mailboxes must meet USPS guidelines for size, construction and visibility. Get postmaster approval before installation of any non-standard box.
How do I install my Pennsylvania mailbox?
Install curbside mailboxes 6–8 inches from the curb and 41–45 inches above the ground. Support posts must be solid and buried less than 24 inches. Wall-mounted or centralized mailboxes (like STD-4C or CBUs) must meet USPS and ADA rules. Check with your local post office.
Can I get private mail delivery in Pennsylvania?
Yes. UPS, FedEx and Amazon can deliver in Pennsylvania, but only USPS can use USPS mailboxes. A separate box can be added for private deliveries.
Can a Pennsylvania property owner create a custom mail service?
Businesses, universities and multi-family complexes may install custom mail systems if they follow USPS STD-4C and ADA guidelines. Centralized mailbox systems must meet safety and accessibility standards.
USPS-Approved Mailboxes for Pennsylvania Multi-Family Properties In:
- Philadelphia
- Pittsburgh
- Allentown
- Erie
- Reading
- Scranton
- Bethlehem
- Lancaster
- Harrisburg
- York
- Wilkes-Barre
- Chester
- Williamsport
- Easton
- Lebanon
- Hazleton
- New Castle
- Johnstown
- McKeesport
- Altoona
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