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All Iowa Area Codes – Complete List and Guide

Iowa is served by several area codes, each representing distinct regions of the state. Whether you’re looking to verify an unknown caller or simply learn about different parts of Iowa, these area codes provide a useful starting point:

• 319 Area Code: Covering eastern Iowa, including major cities like Cedar Rapidsand Iowa City.
• 515 Area Code: Spanning central Iowa with cities like Des Moinesand Ames.
• 563 Area Code: Covering northeastern Iowa, including Davenportand Clinton.
• 641 Area Code: Serving southern and central Iowa, with cities like Mason Cityand Marshalltown.
• 712 Area Code: Spanning western Iowa, including Sioux Cityand Council Bluffs.

Highly Populated Cities by Area Code

Below are some of the largest cities in each Iowa area code, giving you a quick look at where many of these numbers originate:

• 319 Area Code:
  • Cedar Rapids (~137,710 residents)
  • Iowa City (~76,290 residents)
  • Waterloo (~67,314 residents)
• 515 Area Code:
  • Des Moines (~214,133 residents)
  • West Des Moines (~67,899 residents)
  • Ames (~66,427 residents)
• 563 Area Code:
  • Davenport (~101,590 residents)
  • Bettendorf (~39,102 residents)
  • Clinton (~25,184 residents)
• 641 Area Code:
  • Mason City (~27,338 residents)
  • Marshalltown (~27,591 residents)
  • Newton (~15,254 residents)
• 712 Area Code:
  • Sioux City (~85,797 residents)
  • Council Bluffs (~62,799 residents)
  • Spencer (~11,233 residents)

Highly Populated Counties by Area Code

Iowa’s counties are home to a diverse population spread across rural communities, suburbs, and larger cities. Here are some of the most populous counties within each area code region:

• 319 Area Code: Linn County(~230,299 residents), Johnson County(~151,140 residents)
• 515 Area Code: Polk County(~492,401 residents), Story County(~98,537 residents)
• 563 Area Code: Scott County(~174,669 residents), Clinton County(~46,460 residents)
• 641 Area Code: Cerro Gordo County(~42,450 residents), Marshall County(~40,748 residents)
• 712 Area Code: Woodbury County(~103,107 residents), Pottawattamie County(~93,206 residents)

Top 30 Cities in Iowa by Population

Top 30 Counties in Iowa by Population

Geography and Demographics of Iowa

Iowa, known as the Hawkeye State, is located in the Midwestern United States. The state features diverse geography, from rolling plains to river valleys, and is renowned for its agricultural contributions—particularly corn and soybean production.

With a population of over 3.1 million residents, Iowa offers a blend of urban and rural communities. Major cities like Des Moines and Cedar Rapids serve as economic and cultural hubs, while smaller towns maintain the state’s strong agricultural roots. Industries such as agriculture, manufacturing, and finance play pivotal roles, with the median household income hovering around $61,000.

Below are a few popular cities or towns, plus some significant counties and their historical importance in Iowa’s development:

• Des Moines: The state capital and largest city, known for insurance, finance, and government.
• Cedar Rapids: Dubbed the “City of Five Seasons,” it’s a major economic and cultural center in eastern Iowa.
• Davenport: Part of the Quad Cities; historically tied to the Mississippi River.
• Sioux City: A key western Iowa location with a rich background in trade and industry.
• Iowa City: Home to the University of Iowa, renowned for education and healthcare.

• Polk County: Central to Iowa’s political and economic development.
• Linn County: Known for thriving manufacturing and agriculture.
• Scott County: Major commerce hub along the Mississippi River.
• Woodbury County: Home to Sioux City, historically a key trading post.
• Johnson County: Iowa City’s seat; rich in education, healthcare, and culture.

Resources to Explore Maps of Iowa:

• Iowa Map on Google Maps
• State of Iowa Official Map
• National Geographic Iowa Map
• Detailed Map of Iowa Counties
• Historical Maps of Iowa

Iowa Quick Facts: Everything You Need to Know