How do I find a ZIP code by city or state?

Use our ZIP code lookup tool to search by city, state, or address and instantly view related ZIP codes.

Are ZIP codes the same as postal codes?

ZIP codes are the postal code system used in the United States. Other countries use different postal code formats.

📮 ZIP Code Blog

Q: What is a ZIP+4 code?

A ZIP+4 code adds four extra digits to a standard ZIP code to help USPS sort and deliver mail more accurately.

Expert guides, USPS tips & postal resources - 15 articles.

Tag: #usps ✕ Clear

State Guides 🗓 July 29, 2026

ZIP Codes by State: Complete State-by-State Guide (2026)

Every US state has assigned ZIP code ranges. This guide covers prefix tables, counts, and how to look up ZIP codes in all 50 states.

#zip-code-basics #states #usps

USPS Tips 🗓 July 26, 2026

USPS Package Tracking: Complete Guide (2026)

How to track USPS packages, understand every status message, what to do when tracking stops, and how to file claims for lost packages.

#usps #tracking #shipping

Postal Guide 🗓 July 23, 2026

How USPS ZIP Codes Change: Updates, New Codes & What to Do

ZIP codes are not permanent. USPS regularly adds, splits, and retires them. Learn how to stay current and what to do if your ZIP code changes.

#zip-code-basics #usps #address-change

Postal Guide 🗓 July 20, 2026

Moving to a New City? Your Complete ZIP Code Checklist (2026)

When you move, your ZIP code affects mail, insurance, taxes, voter registration and more. Complete checklist for handling ZIP code changes.

#moving #address-change #usps

USPS Tips 🗓 July 5, 2026

USPS Informed Delivery: What It Is and How to Set It Up

USPS Informed Delivery sends you a daily email showing images of incoming mail before it arrives. Free setup guide plus business use cases.

#usps #informed-delivery #mail-tracking

Postal Guide 🗓 July 3, 2026

PO Box vs Street Address: Which Should You Use? (2026 Guide)

PO Boxes offer privacy and security. Street addresses offer convenience. Here is the complete comparison with costs, pros, cons, and alternatives.

#po-box #usps #mail-delivery

USPS Tips 🗓 June 29, 2026

Complete USPS Shipping Guide 2026: Services, Rates & Tips

Everything you need to know about USPS shipping in 2026 - service comparison, current rates, delivery times, and money-saving tips.

#usps #shipping #postal-guide

ZIP Codes 🗓 June 28, 2026

How Many ZIP Codes Are There in the USA? (2026 Updated)

There are over 41,700 active ZIP codes in the US. Discover which states have the most, which have the fewest, and how the count changes over time.

#zip-code-basics #usps #statistics

Postal Guide 🗓 June 22, 2026

What Is a ZIP+4 Code? Everything You Need to Know (2026)

ZIP+4 codes extend 5-digit ZIPs with 4 more digits to pinpoint a block, building, or floor. Learn what they are, why they matter, and how to find yours.

#zip-plus-4 #usps #mail-delivery

ZIP Codes 🗓 June 21, 2026

What Is a ZIP Code? Complete Guide to US Postal Codes (2026)

A ZIP code is a 5-digit number assigned by USPS to every mailing address in the US. Learn its history, types, how it works, and how to find yours.

#zip-code-basics #usps #postal-guide

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