218 Area Code: Duluth, Minnesota

Northern Minnesota is served by the 218 area code, with Duluth as the primary city in the directory's records. Duluth sits at the western tip of Lake Superior, on a stretch of the lakeshore where the city rises sharply from a narrow waterfront onto a steep ridge above the harbor — an unusual urban geography for the upper Midwest, and one that has long defined the city's working profile alongside the iron-ore shipping that runs through the harbor. The 218 footprint extends across the Iron Range, the Boundary Waters region, the Red River Valley around Moorhead, and the surrounding northern Minnesota counties.

Records linked to 218 numbers in the directory often include other Minnesota cities — Bloomington, Brooklyn Park, Minneapolis, and Rochester among them. None of those are inside the 218 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Minnesota and addresses linked across multiple cities. The directory currently documents 411 distinct prefixes within 218 in detail, a working subset of the prefix population the code carries.

Duluth's home values come in below the US median, with median household income running below the national figure. The city's median age sits a few years under the US reading, and population places Duluth as one of the larger cities in northern Minnesota — substantial enough to anchor a regional economy organized around the port, the surrounding mining and timber sectors, healthcare, and the University of Minnesota Duluth. The broader 218 footprint covers an unusually large geographic stretch of the state with a relatively dispersed population.