319 Area Code: Cedar Rapids, Iowa

The 319 area code covers eastern Iowa, with Cedar Rapids as the primary city in the directory's records. Cedar Rapids sits along the Cedar River in the rolling country of eastern Iowa, on a stretch of the river that runs through a working downtown anchored by a substantial concentration of food processing — Quaker Oats, Cargill, and several other large agricultural-processing operations have long shaped the local economy. The 319 footprint reaches through Iowa City (and the University of Iowa's main campus), Waterloo-Cedar Falls, Dubuque, and the smaller cities along the Mississippi corridor.

Records linked to 319 numbers in the directory often include other Iowa cities — Davenport, Des Moines, Marshalltown, and Sioux City among them. None of those are inside the 319 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Iowa and addresses linked across multiple cities. The directory currently documents 388 distinct prefixes within 319 in detail, a working subset of the prefix population the code carries.

Cedar Rapids's home values come in below the US median, in line with broader eastern Iowa pricing. Median household income runs below the national figure but not severely so, the city's median age sits a couple of years under the US reading, and population places Cedar Rapids among the larger Iowa cities — substantial enough to anchor a regional economy organized around food processing, the university across the river, and the surrounding agricultural counties. The broader 319 footprint reflects a mix of mid-sized cities, university towns, and farming country spread across the eastern third of Iowa.