USPS-Approved Mailboxes in Indiana

USPS-Approved Mailboxes in Indiana Cluster & Pedestal Multi-Family Options

U.S. Mail Supply supplies USPS-approved multi-family mailbox systems throughout Indiana. We provide cluster box units (CBUs), pedestal-mounted mailboxes and other centralized solutions for apartments, condominiums and multi-unit developments. All units meet USPS specifications. Contact your local postmaster to confirm mailbox installation guidelines in your area.

Indiana-specific mailbox requirementsGet help from a rep!
Black Mail Package Drop

Mail Package Drop

PEDESTALS SOLD SEPARATELY

Product # US4375

$570.00

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In-ground pedestal for USPS Approved Mail Package Drop

Mail Package Drop/Mail Chest In-Ground Pedestal

PEDESTALS SOLD SEPARATELY

Product # US4385

$170.00

Call For Pricing on 3+ units!

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Traditional Decorative 8 Tenant Door Cluster Box Unit

Florence 8 Tenant Cluster Mailbox (CBU) Traditional Decorative w/ Pedestal #1570...

PEDESTALS SOLD SEPARATELY

Product # 1570-8V2

$3,050.00

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1590T2 Florence Outdoor Pedestal Parcel Mailbox USPS approved

Florence 4 Unit Outdoor Parcel Locker w/ Pedestal #1590-T2

PEDESTALS SOLD SEPARATELY

Product # 1590T2

$2,970.00

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16 Door USPS & Courier Cluster Mailbox Unit 1570-16-SD

Florence 16 Tenant Cluster Mailbox (CBU) w/ Pedestal #1570-16

PEDESTALS SOLD SEPARATELY

Product # F181570-16

$2,350.00

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35 Door Horizontal Mailbox: The 1400-75 Florence 4B+

Front-Loading Horizontal Mailboxes – 35 Doors

PEDESTALS SOLD SEPARATELY

Product # 1400-75

$3,150.00

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4-Door 3500 Series Vertical Mailbox Aluminum

4-Door 3500 Series Vertical Mailbox

PEDESTALS SOLD SEPARATELY

Product # 3504

$483.00

Call For Pricing on 4+ units!

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Double Letter Locker Collection Box in Tan

Double Letter Locker Collection Box-Front Access

PEDESTALS SOLD SEPARATELY

Product # LL2FCUSTOM

$1,596.00

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Multi-Family Mailboxes for New Property Developments in IN

Indiana’s expanding multi-family housing sector is fueling demand for durable, centralized mail delivery systems. New residential communities in cities like Indianapolis, Fort Wayne and Bloomington benefit from USPS-compliant solutions like STD-4C mailboxes and CBUs.

U.S. Mail Supply provides reliable 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 IN

Mailbox regulations in Indiana 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 Indiana 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
    Always follow USPS and INDOT recommendations when installing mailbox supports in Indiana. Supports must break away safely when struck. Steel or treated wood posts are commonly used.
  • Mailbox Placement
    Curbside installations should allow 8–12 inches of clearance from the road surface. Cluster systems must not obstruct sidewalks or building entries.
  • Locking & Parcel Delivery
    Locking mailboxes must be USPS‑approved and meet delivery slot and parcel compartment specs. CBUs must meet STD‑4C parcel locker rules.
  • ADA Compliance
    In centralized mailbox areas, at least one tenant box must be no higher than 48 inches AFF. Parcel lockers must begin no lower than 15 inches from the floor, with arrow locks placed between 36 and 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.
*See the USPS National Delivery Planning Standards: A Guide for Builders and Developers for more information.

Fastest Growing Multi-Family Property Investments in Indiana

Indiana’s multi-family housing market continues to expand, particularly in Indianapolis and surrounding metro areas. Developers are targeting urban infill locations, transit corridors and college towns with strong renter demand. From affordable units to luxury developments, the state is seeing a broad spectrum of new construction.

Other Indiana cities are also making major strides in the multi-family sector:

  • Fort Wayne is growing its apartment inventory to support new job growth and downtown revitalization.
  • Bloomington remains active due to student housing needs around Indiana University.
  • South Bend is investing in mixed-use developments close to the city center and university district.

As Indiana’s rental demand rises, U.S. Mail Supply supports developers with secure, USPS-compliant mailbox systems built for long-term use.

Fastest Growing Multi-Family Property Investments in Indiana
Top Multi-Family Property Management Firms in IN

Top Multi-Family Property Management Firms in IN

Indiana’s growing multi-family housing market is supported by a network of property management companies specializing in apartments, townhomes and student housing. Property management firms help developers maintain building operations, manage tenant relations and comply with USPS delivery requirements. From Indianapolis to Fort Wayne and beyond, property managers keep rental communities running smoothly.

Indiana Property Management Group LLC

Indiana Property Management Group is a full-service multi-family property management company handling leasing, maintenance and HOA coordination across Indiana.

WILMOTH Group

The WILMOTH Group specializes in residential and multi-family property management, with a focus on tenant placement, compliance and property upkeep.

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 Indiana. 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

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USPS-Approved Mailboxes for Indiana Multi-Family Properties In:

  • Indianapolis
  • Fort Wayne
  • Evansville
  • South Bend
  • Carmel
  • Fishers
  • Bloomington
  • Hammond
  • Gary
  • Lafayette
  • Muncie
  • Noblesville
  • Terre Haute
  • Kokomo
  • Anderson
  • Greenwood
  • Elkhart
  • Mishawaka
  • Lawrence
  • Jeffersonville
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Make sure to choose the right mailbox

Don't worry, we can help you figure out what's best and most cost efficient for your space. A representative at U.S. Mail Supply will help you figure out what is required for USPS or private delivery, the number of units you need and any information required for installation.

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