ZIP Code Directory
Find any U.S. ZIP code
Search by ZIP code to view city, county, state, and helpful location context. Designed for fast lookups and clean, indexable pages.
Browse by state
Start broad, then drill down to ZIP codes.
California
Texas
Florida
New York
Illinois
Arizona
Colorado
Massachusetts
What’s on each ZIP page
Standardized layout for consistent indexing.
- Primary city name(s) and state
- County and basic geography
- Quick stats and key references (when available)
- Links to related cities, counties, and state pages
ZIP code lookup for the United States
ZIP codes (Zone Improvement Plan) are used by USPS to improve mail routing and logistics. On ZipCityLookup, each ZIP code has a dedicated page with standardized fields so you can quickly identify the associated city, state, and county, and navigate to related geographic pages.
How to use this directory
- Type a 5-digit ZIP code in the search box above and submit.
- Or open a ZIP page directly (example: /zip/90210/).
- Prefer browsing? Start from states and drill into cities and ZIP codes.
About data and accuracy
ZIP code boundaries and “primary city” labels can vary by dataset and can change over time. If you notice a mismatch, treat the ZIP page as a general reference and validate critical use cases with official sources.
FAQ
What is the URL format for ZIP pages?
ZIP pages use a single canonical format:
/zip/#####/.Can one ZIP code match multiple cities?
Yes. Some ZIP codes may be associated with multiple city names (or neighborhoods). The page should show the primary city label plus any alternates if you have them.
Are ZIP codes the same as city boundaries?
Not necessarily. ZIP codes are designed for mail delivery routes and do not always align with municipal boundaries.