ZIP Codes in North Dakota
North Dakota's ZIP codes cover one of the least populated states in the country, with just around 780,000 residents spread across vast stretches of prairie farmland and, in the western part of the state, the oil-rich Bakken formation that has driven periodic economic booms over the past two decades. Fargo, on the eastern border with Minnesota, stands out as the state's clear population and economic center.
How ZIP Codes Are Organized Across the State
North Dakota's ZIP codes fall within the 58000–58899 range under the USPS system, one of the most compact ranges of any state given how sparsely populated most of North Dakota is. Fargo sits near 581xx, Bismarck, the state capital, occupies 585xx, and Grand Forks, in the northeast, carries codes closer to 582xx.
North Dakota's Major Population Centers
The chart below shows how population concentrates around Fargo, with Bismarck and Grand Forks trailing as the state's next-largest cities.
Fargo's ZIP codes cover North Dakota's largest city, sitting right on the border with Minnesota along the Red River, with an economy built around agriculture, technology, and healthcare that has helped it grow steadily even as many rural parts of the state have lost population. Bismarck, the state capital, sits along the Missouri River and carries a strong state government presence alongside energy sector employment. For a broader comparison, our full US ZIP code directory shows how North Dakota's compact range fits alongside every other state.
The Bakken Oil Boom
Western North Dakota, particularly around Williston, experienced a dramatic economic boom in the 2000s and 2010s tied to oil drilling in the Bakken shale formation, one of the largest domestic oil discoveries in decades. ZIP codes in this region saw huge, rapid population swings as workers flooded in during the boom years, straining local housing and infrastructure in ways few small towns are equipped to handle, before growth moderated as oil prices fluctuated.
Rural North Dakota and Agriculture
Away from Fargo, Bismarck, and the Bakken region, North Dakota remains overwhelmingly agricultural, a top national producer of wheat, sunflowers, and other grains. ZIP codes in these farming counties cover large geographic areas with declining populations in many cases, a long-term trend as agricultural consolidation reduces the number of farms - and farm families - needed to work the same amount of land.
Why ZIP Codes Matter Beyond Mail
In North Dakota, ZIP codes carry real significance for both the agricultural and energy sectors - grain cooperatives rely on ZIP-level data for shipping logistics across the state's rail network, while oil companies working the Bakken formation use ZIP codes to coordinate workforce housing and services during periods of rapid growth. Fargo's growing tech sector, boosted in part by Microsoft's regional presence, also relies on ZIP-level data for talent recruitment.
Border Regions and Neighboring States
North Dakota shares borders with three US states and a long international border with the Canadian provinces of Manitoba and Saskatchewan to the north. To the east, Fargo sits directly across the Red River from Minnesota, with the two states sharing a closely linked metro economy. To the south, South Dakota continues similar prairie farmland. And to the west, Montana shares the Bakken formation's oil-producing terrain.
Finding the Right ZIP Code
Use the list below to browse North Dakota'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 North Dakota have?
North Dakota has around 250 ZIP codes, concentrated most heavily around Fargo, with far fewer covering the state's sparsely populated rural counties.
What ZIP code range does North Dakota use?
North Dakota ZIP codes fall between 58000 and 58899, one of the most compact ranges of any state given its small population.
What caused the population boom in western North Dakota?
The discovery and development of the Bakken shale oil formation drove a dramatic economic and population boom in towns like Williston during the 2000s and 2010s.
Can I look up a North Dakota 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 Fargo's growing tech scene, researching property near the Bakken oil region, or simply trying to pin down the right ZIP code for a specific North Dakota address, the data below covers every corner of the state.