Mailbox Locks and Keys for USPS, Interior & Exterior Mailboxes

EasyKeys.com offers one of the widest selections of USPS mailbox locks and replacement mailbox keys for both interior and exterior applications. Our inventory includes high-quality mailbox cam locks, USPS-approved replacement locks, and key blanks from trusted manufacturers such as CompX National, CCL Security Products, ESP/Hudson Lock, and WIND Hardware & Engineering—brands known for reliable security and long-lasting performance.

Whether you're replacing a lost mailbox key, upgrading a worn or damaged lock, or securing a brand-new mailbox, EasyKeys.com makes it simple to find the exact match. Our selection includes popular USPS-style cam locks, multi-application mailbox locks, and keyed-alike options for property managers or multi-unit buildings. Many locks on this page also include replacement key codes, helping you quickly identify the correct key for your existing mailbox hardware.

Not sure which mailbox lock or key you need? Our team is here to help you choose the right option with confidence, ensuring smooth installation and dependable daily use.

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Architectural Mailboxes
Architectural Mailboxes LOCKSTAM Mailbox Cam Lock - SKU: LOCKSTAM Architectural Mailboxes
LOCKSTAM
LOCKSTAM Mailbox Cam Lock
As Low As $10.07
Architectural Mailboxes Lock, Cam & Keys for The Metropolis & Maya 2400 Series Wall Mount Mailboxes - SKU: 5120-2400 Architectural Mailboxes
5120-2400
Lock, Cam & Keys for The Metropolis & Maya 2400 Series Wall Mount Mailboxes
As Low As $10.47
Architectural Mailboxes Lock, Cam & Keys for the Maison Locking Wall Mount Mailbox - SKU: 5120-2540 Architectural Mailboxes
5120-2540
Lock, Cam & Keys for the Maison Locking Wall Mount Mailbox
As Low As $10.47
Architectural Mailboxes Lock, Cam & Key for The Oasis 5100 Series Mailboxes - SKU: 5120-5100 Architectural Mailboxes
5120-5100
Lock, Cam & Key for The Oasis 5100 Series Mailboxes
As Low As $10.47
Architectural Mailboxes Locks, Cams and Keys for The Oasis 360 6300 Mailboxes - SKU: 5120-6300 Architectural Mailboxes
5120-6300
Locks, Cams and Keys for The Oasis 360 6300 Mailboxes
As Low As $11.57
Architectural Mailboxes Lock, Cam & Key for The Oasis Eclipse 6400 Series Mailboxes - SKU: 5120-6400 Architectural Mailboxes
5120-6400
Lock, Cam & Key for The Oasis Eclipse 6400 Series Mailboxes
As Low As $10.47
Architectural Mailboxes Lock, Cam & Keys for The Regent 2507, The Saratoga 2550 & The Chelsea 2580 Series Wall Mount Mailboxes - SKU: 5121-Y11-2507 Architectural Mailboxes
5121-Y11-2507
Lock, Cam & Keys for The Regent 2507, The Saratoga 2550 & The Chelsea 2580 Series Wall Mount Mailboxes
As Low As $10.47
Architectural Mailboxes Lock, Cam & Keys for The Dal Rae 2562 Series Wall Mount Mailboxes - SKU: 5121-Y11-2562 Architectural Mailboxes
5121-Y11-2562
Lock, Cam & Keys for The Dal Rae 2562 Series Wall Mount Mailboxes
As Low As $10.47
Architectural Mailboxes Lock, Cam & Keys for The Princeton 2572 & The Parkside 2576 Series Wall Mount Mailboxes - SKU: 5121-Y11-2572 Architectural Mailboxes
5121-Y11-2572
Lock, Cam & Keys for The Princeton 2572 & The Parkside 2576 Series Wall Mount Mailboxes
As Low As $10.47
Architectural Mailboxes Lock, Cam & Keys for The Aspen 2594 Series Wall Mount Mailboxes - SKU: 5121-Y11-2594 Architectural Mailboxes
5121-Y11-2594
Lock, Cam & Keys for The Aspen 2594 Series Wall Mount Mailboxes
As Low As $10.47
Architectural Mailboxes Lock, Cam & Keys for The Sienna 2596, The Whitman 2598 and The Bordeaux 2697 Series Wall Mount Mailboxes - SKU: 5121-Y11-2596 Architectural Mailboxes
5121-Y11-2596
Lock, Cam & Keys for The Sienna 2596, The Whitman 2598 and The Bordeaux 2697 Series Wall Mount Mailboxes
As Low As $10.47
Architectural Mailboxes Lock & Keys for ElephanTrunk™ Parcel Drop - SKU: 5122-6900 Architectural Mailboxes
5122-6900
Lock & Keys for ElephanTrunk™ Parcel Drop
As Low As $13.07
Architectural Mailboxes Lock & Keys for The Oasis 6200 Series Mailboxes - SKU: 5123-HSWC Architectural Mailboxes
5123-HSWC
Lock & Keys for The Oasis 6200 Series Mailboxes
As Low As $16.87
Architectural Mailboxes High Security Lock for the Oasis® Tribolt™ Mailbox Lock - SKU: 5124-620020 Architectural Mailboxes
5124-620020
High Security Lock for the Oasis® Tribolt™ Mailbox Lock
As Low As $12.57
Architectural Mailboxes CAMSET01 Mailbox Cam Lock - SKU: CAMSET01 Architectural Mailboxes
CAMSET01
CAMSET01 Mailbox Cam Lock
As Low As $7.37
Architectural Mailboxes CAMSET02 Mailbox Cam Lock - SKU: CAMSET02 Architectural Mailboxes
CAMSET02
CAMSET02 Mailbox Cam Lock
As Low As $7.67
CCL
CCL Mailbox Cam Lock - SKU: 82010 CCL
82010
Mailbox Cam Lock
As Low As $14.27
CCL Mailbox Cam Lock - SKU: 82011 CCL
82011
Mailbox Cam Lock
As Low As $13.87
CCL Mailbox Cam Lock - SKU: 82013 / 82014 CCL
82013 / 82014
Mailbox Cam Lock
As Low As $16.87
CompX National
CompX National Pin Tumbler Mailbox Lock - SKU: C8724 CompX National
C8724
Pin Tumbler Mailbox Lock
As Low As $8.27
CompX National Pin Tumbler Multi-Cam Mailbox Lock - SKU: C8730 CompX National
C8730
Pin Tumbler Multi-Cam Mailbox Lock
As Low As $10.07
CompX National Pin Tumbler Multi-Cam Mailbox Lock - SKU: C8735 CompX National
C8735
Pin Tumbler Multi-Cam Mailbox Lock
As Low As $14.07
CompX National Pin Tumbler Mailbox Lock - SKU: C9100 / C9200 CompX National
C9100 / C9200
Pin Tumbler Mailbox Lock
As Low As $16.27
CompX National Postal Lock For Non-USPS Delivered Sites - SKU: C9300 CompX National
C9300
Postal Lock For Non-USPS Delivered Sites
As Low As $16.27
CompX National Postal Lock For Non-USPS Delivered Sites - SKU: C9400 CompX National
C9400
Postal Lock For Non-USPS Delivered Sites
As Low As $16.27
CompX National Postal Lock For Non-USPS Delivered Sites - SKU: C9500 CompX National
C9500
Postal Lock For Non-USPS Delivered Sites
As Low As $16.27
ESP
ESP Threaded Hex Nut Mailbox Lock - SKU: PT812RN5CPA ESP
PT812RN5CPA
Threaded Hex Nut Mailbox Lock
As Low As $5.37
ESP Non-Dust Shuttered Spring Clip - SKU: PTR-656UN ESP
PTR-656UN
Non-Dust Shuttered Spring Clip
As Low As $5.37
ESP Threaded Hex Nut - SKU: PTR-656UN-HN ESP
PTR-656UN-HN
Threaded Hex Nut
As Low As $5.37
ESP Dust Shuttered Spring Clip - SKU: PTR-DC656UN ESP
PTR-DC656UN
Dust Shuttered Spring Clip
As Low As $7.77
Wind Danbury Ct
Wind Danbury Ct Mailbox Lock 10277 - SKU: 10277-000 Wind Danbury Ct
10277-000
Mailbox Lock 10277
As Low As $9.97
Wind Danbury Ct Mailbox Lock 10617 - SKU: 10617-000 Wind Danbury Ct
10617-000
Mailbox Lock 10617
As Low As $12.07