City to ZIP Finder
Instantly generate a complete list of accurate ZIP codes for any city across the 50 states.
Search ZIP Codes
Enter city & state to get verified 2026 postal codes.
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How to use this tool
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1
Select State Choose the US State (e.g., California) from the list.
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2
Enter City Type the full City Name (e.g., San Diego).
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3
Get Results Click "Find ZIP Codes" to see the verified list instantly.
Why use our Finder?
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100% Verified Data Directly compatible with 2026 USPS Zoning standards.
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Complete City Lists See every single ZIP code for large metro areas.
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Mobile Friendly Designed for fast lookups on iPhone & Android.
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Instant Map Visualization One-click access to view exact ZIP boundaries on Google Maps.
Who uses this tool?
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Logistics & Shippers Validate delivery zones to prevent "Returned to Sender" errors and calculate accurate shipping zones.
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Real Estate Investors Map out investment zones. Property values and tax rates often shift drastically across ZIP code boundaries.
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Marketers (EDDM) Target demographics efficiently. ZIP codes often group households by similar income levels.
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Everyday Shoppers Avoid delivery delays for online orders, returns, or utility setup by finding the exact 5-digit code.
Understanding Data Limitations
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Standard vs. PO Box
Some ZIP codes belong only to a specific building (like a skyscraper) or a PO Box center. Our tool prioritizes Standard (Residential) codes for general use.
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New Construction Lag
In fast-growing states (like TX, FL, AZ), new housing subdivisions may take 30-60 days to appear in the official public USPS database.
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Not Geographic Shapes
ZIP codes are actually "postal routes," not strict geographic shapes on a map. In rural areas, they can sometimes cross county or even state lines.
Why Precise ZIP Codes Matter?
In the US, a ZIP code is more than just a mailing address. It determines your sales tax rate, insurance premiums, and school district eligibility. Using a generic city ZIP (like 90210) instead of the specific route code can lead to shipping delays or incorrect billing.
🇺🇸 Real-World Scenario
The "Chicago" Problem: Chicago has over 80 distinct ZIP codes. If a logistics manager uses a central code like 60601 for a delivery meant for the suburbs (e.g., 60640), the package might be routed to the wrong distribution center, delaying delivery by 24-48 hours. Our tool eliminates this guesswork.
Decoding the 5 Digits
A ZIP Code is not random. The USPS uses a smart logic system. For example, in 90210:
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1National Area 1st Digit: Ranges from 0 (East) to 9 (West).
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2Region / Hub 2nd-3rd Digits: Central mail distribution center.
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3Delivery Zone 4th-5th Digits: Pinpoints your local post office.
EXAMPLE: BEVERLY HILLS, CA
Frequently Asked Questions
What is a ZIP Code?
Can a city have multiple ZIP codes?
How do I find the main ZIP code for a city?
Is this data updated for 2026?
Can a city have ZIP codes in two states?
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