Address Standardization
Convert any U.S. address to USPS Publication 28 style — UPPERCASE with standard street and unit abbreviations.
What is address standardization?
USPS Publication 28 sets the standard for how addresses should be written for automated mail processing: everything in UPPERCASE, no periods, and standard abbreviations — ST for Street, AVE for Avenue, APT for Apartment, N/S/E/W for directions, and so on.
This tool applies those rules instantly: Street → ST, Avenue → AVE, Boulevard → BLVD, Drive → DR, Lane → LN, Road → RD, Court → CT, Place → PL, Circle → CIR, Parkway → PKWY, Terrace → TER, North → N, South → S, East → E, West → W, Apartment → APT, Suite → STE, Floor → FL — plus period removal and extra-space cleanup.
How to use
- Enter the street address, city, state and ZIP code.
- Click Standardize Address.
- Your result card shows the Publication 28 version — use Copy address to copy it.
Frequently Asked Questions
What is USPS Publication 28?
Publication 28 is the USPS Postal Addressing Standards guide. It defines how addresses should be formatted — uppercase, abbreviated street suffixes and directionals, no punctuation — so automated equipment can read them reliably.
Does standardizing change my address?
No. It only changes the formatting, not the location. “123 Main Street” and “123 MAIN ST” are the same address — the second is just written the way USPS prefers.
Why are there no periods or commas?
USPS automation reads addresses best without punctuation, so Publication 28 drops periods (and we drop commas too) and collapses extra spaces.
Is this the same as address verification?
Not quite. Standardization fixes the format; verification checks that the format — and ideally the address itself — is valid. Use both together for the cleanest addresses.