Select United States Of America (USA) State (Step 1)
ZIP Codes are unique postal codes assigned by the United States Postal Service (USPS) to improve the accuracy and efficiency of mail delivery across the country. Each ZIP Code in the USA is a five-digit number where the first digit represents a broad region of the nation, the next two digits identify a more specific area within that region, and the last two digits indicate the exact delivery area or post office. Today, there are over 41,000 ZIP Codes in the United States, covering every state and city to ensure mail, packages, and official documents reach the right destination quickly. Knowing the correct ZIP Code by state not only helps with faster mail delivery but is also essential for online shopping, business operations, and location-based services.
Need to find a ZIP code for your city, street, or county? At uszipcodes.org, our ZIP code finder tool delivers fast and accurate results for any location in the United States. Whether you are checking an address for deliveries, planning a business route, or verifying your own ZIP, the database returns the correct postal digits and related details in seconds.
Powered by USPS data, U.S. Census information, and real-time mapping tools, the platform lets you explore ZIP codes, approximate boundaries, demographic snapshots, and routing data in one place. This ZIP code directory ensures reliable results for individuals and businesses alike.
Use the lookup to search by full street address, city, or county and instantly see the right ZIP code. When extra precision is needed, retrieve the ZIP+4 extension to help carriers route mail to the correct segment or building. Open interactive maps to visualize coverage, run a radius search to list nearby ZIP codes within a chosen distance, and export printable ZIP code lists by state, city, or county for reports and offline work. The tool serves both individual users and businesses across all 50 states and U.S. territories.
Accurate ZIP codes speed up deliveries, reduce the chance of lost or delayed mail, and help teams design efficient service routes. Verified addresses also support reliable emergency response and cleaner records in e-commerce checkouts, ERPs, and CRMs, which improves customer satisfaction and lowers operating costs.
By confirming the correct code before you ship or store an address, you improve delivery accuracy to streets, buildings, and PO boxes. Operations teams gain efficiency because workflows rely on trusted data. Customer records remain consistent and searchable, while marketers and analysts can draw better insights by comparing demographics and regions at the ZIP level. Public safety and field teams benefit from precise location data during time-critical situations.
A five-digit ZIP code identifies a general delivery area such as a city or neighborhood. A ZIP+4 code adds four digits that narrow the destination to a smaller segment like a block, a group of addresses, or a large campus, which improves sorting and last-mile accuracy. USPS uses several categories of ZIP codes, including standard areas for residences and businesses, PO box codes used at post offices, unique codes assigned to high-volume organizations, and military codes that support the armed forces worldwide.
Urban regions often include several ZIP codes within the same city to serve dense populations and high mail volumes. Rural regions can span wide territory under a single code so carriers can reach homes and businesses scattered across long distances. The lookup helps locate addresses in both settings, including hard-to-reach rural zones.
E-commerce stores validate addresses during checkout to prevent delivery issues. Logistics providers use ZIP information to plan routes and reduce miles. Real estate professionals research market activity by code. Marketers target campaigns and measure performance at the ZIP level. Researchers and students study geography and population trends with consistent regional units.
Our ZIP Code directory helps you quickly find details of any city or county. You can also explore ZIP Code maps to visualize exact boundaries. If you want to check nearby areas, use our ZIP Code radius search feature. For offline reference, we provide printable ZIP Code lists in an easy-to-use format for businesses, logistics, and research purposes.