ZIP Codes in Oklahoma
Oklahoma's ZIP codes cover a state shaped by its Native American heritage, a long history in the oil and gas industry, and a landscape that transitions from the forested east into the flat, wind-swept plains of the Panhandle further west. With around 4 million residents, Oklahoma's population splits mainly between Oklahoma City and Tulsa, its two dominant metro areas, with much of the rest of the state remaining rural.
How ZIP Codes Are Organized Across the State
Oklahoma's ZIP codes fall within the 73000–74999 range under the USPS system. Oklahoma City, the state capital, occupies the lower end around 731xx, Tulsa, in the northeast, sits near 741xx, and Norman, home to the University of Oklahoma, carries codes closer to 730xx.
Oklahoma's Major Metro Areas by Population
The chart below shows how population splits between Oklahoma City and Tulsa, Oklahoma's two clear population centers, with the rest of the state considerably smaller by comparison.
Oklahoma City's ZIP codes cover the state capital and its largest city, home to a diversified economy built around energy, aviation, and a resurgent downtown that's seen significant investment in recent decades. Tulsa, in the state's northeast, has its own strong ties to the oil industry historically, earning it the nickname "Oil Capital of the World" during the early 20th century, alongside a notable Art Deco architectural heritage from that era. For a broader comparison, our full US ZIP code directory shows how Oklahoma's ranges fit alongside every other state.
Tribal Lands and Eastern Oklahoma
Oklahoma is home to 39 federally recognized tribal nations, more than any other US state, a legacy of the Indian Removal era when many tribes were relocated here from the southeastern United States. Much of eastern Oklahoma falls within reservation or tribal jurisdiction boundaries, and ZIP codes in this region reflect a significant Native American population and cultural presence unlike almost anywhere else in the country.
The Panhandle and Western Oklahoma
Oklahoma's narrow panhandle, stretching west between Texas, Colorado, Kansas, and New Mexico, feels geographically distinct from the rest of the state - flat, wind-swept plains that share more in common with the Texas Panhandle just to the south than with the forested hills of eastern Oklahoma. This region borders Texas and Kansas, and ZIP codes here cover large agricultural areas with very low population density.
Why ZIP Codes Matter Beyond Mail
In Oklahoma, ZIP codes carry particular significance for the energy industry, given the state's deep historical ties to oil and gas - companies use ZIP-level data extensively for drilling logistics and workforce planning across the state's producing regions. Tribal nations use ZIP codes to coordinate services and economic development programs across reservation boundaries that don't always align neatly with county lines. And agricultural cooperatives in western Oklahoma rely on ZIP-level data for wheat and cattle shipping logistics.
Border Regions and Neighboring States
Oklahoma shares borders with six states, including a distinctive panhandle that touches four of them. To the north, Kansas continues similar plains farmland. To the south, the Red River separates Oklahoma from Texas. And to the east, the border with Arkansas transitions into more forested, hilly terrain.
Finding the Right ZIP Code
Use the list below to browse Oklahoma's ZIP codes by city, county, or population - sorted so the most populous areas surface first. Each entry links through to a detailed page with additional demographic data. If you're trying to identify the ZIP code for a specific address rather than browsing by city, the search tool at the top of this page will get you there faster than scrolling through the full list.
Frequently Asked Questions
How many ZIP codes does Oklahoma have?
Oklahoma has several hundred ZIP codes, concentrated most heavily around Oklahoma City and Tulsa, with far fewer covering the state's rural western plains and panhandle.
What ZIP code range does Oklahoma use?
Oklahoma ZIP codes generally fall between 73000 and 74999, with Oklahoma City toward the lower end and Tulsa further along the range.
Why does Oklahoma have so many tribal nations?
Oklahoma was designated Indian Territory in the 19th century, and many tribes were forcibly relocated here from the southeastern US, resulting in 39 federally recognized tribal nations today, more than any other state.
Can I look up an Oklahoma ZIP code by city name?
Yes, use the search tool on this page or browse the full list below, which is organized by city and sorted by population.
Whether you're relocating to Oklahoma City or Tulsa, researching tribal land property in the east, or simply trying to pin down the right ZIP code for a specific Oklahoma address, the data below covers every corner of the state.