USPS-Approved Mailboxes in Pennsylvania

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.

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
Multi-Family Mailbox Solutions

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.

  • 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.
  • 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.
  1. 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.
  2. Mobile or Trailer Home Developments
    Permanent developments must have permanent lot assignments, public road maintenance and typically use centralized, curbside or sidewalk delivery as determined by USPS. Transient developments receive mail at a single USPS-approved location, with park staff handling internal distribution.
  3. 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.
  4. 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.

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 major 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.

Fastest Growing Multi-Family Property Investments in Pennsylvania
Top Multi-Family Property Management Firms in PA

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?

What mailboxes are approved by USPS in Pennsylvania?

How do I get a new mailbox in Pennsylvania?

Can I customize my mailbox in Pennsylvania?

How do I install my Pennsylvania mailbox?

Can I get private mail delivery in Pennsylvania?

Can a Pennsylvania property owner create a custom mail service?

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
Need Something Specific?

Contact Us for Personalized Mailbox Solutions!

Expert Assistance

Live Support

Monday - Friday 8:00 AM - 4:00 PM
or
Contact Us