% of Population without Health Insurance, by Zip Code (ZCTA5) — North Dakota

NOTE: Gray indicates insufficient data or a suppressed estimate.

Uninsured rates across North Dakota vary considerably by zip code, with most areas falling below 10%, though notable clusters of higher uninsured populations (25–50%) appear in the western part of the state—likely corresponding to oil-producing regions around the Bakken formation where transient workforce populations may lack employer-sponsored coverage. Several zip codes in the south-central portion of the state also display elevated rates in the 25–35% range, potentially aligning with rural and tribal reservation areas. Urban centers such as Fargo (southeast) and Bismarck (south-central) generally exhibit lower uninsured rates in the 5–10% range, consistent with greater access to employer-based and marketplace insurance options.

Data: U.S. Census Bureau, 2023 ACS

Explore