My Local Guide

Dutch Heritage, Prairie Trails, and Growing Hometowns

Sioux County, Iowa

Sioux County sits in Iowa’s northwest corner, where strong agricultural roots, Dutch-American heritage, growing small cities, colleges, health care, manufacturing, and family recreation all intersect. Orange City serves as the county seat, while Sioux Center is the largest city and a major regional hub. Visitors can explore Dutch heritage, walk prairie and city trails, enjoy parks and water recreation, attend college events, and experience a county known for active communities and a distinctive cultural identity.

Sioux County at a Glance

Population36,774 (2025 estimate)
County SeatOrange City
Largest CitySioux Center
Established1860
ZIP CodesMultiple community ZIP Codes
Total AreaApprox. 769 sq mi
Major RoutesUS 75, IA 10, IA 12
Area Code712
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Greenfield County courthouse
Discover Sioux County

Sioux County

Sioux County was formally organized in 1860. Its first county seat was Calliope, but a wave of Dutch immigration beginning in the late 1860s transformed the eastern part of the county. Orange City grew quickly, and after a famously intense county-seat rivalry, voters moved the seat there in 1872. Agriculture, faith communities, education, rail and highway access, and later manufacturing shaped the county into one of northwest Iowa’s strongest rural population centers.

A visit can begin in Orange City with Dutch architecture, Windmill Park, the courthouse, museum, shops, and Northwestern College. Sioux Center adds Dordt University, recreation trails, All Seasons Center, Siouxnami Waterpark, shopping, and a fast-growing business community. Sandy Hollow, prairie trails, county parks, Rock Valley, Hawarden, Hull, and smaller communities add outdoor recreation, festivals, local dining, and another layer of northwest Iowa life.

What Shapes Us

Dutch Heritage

Immigration, architecture, festivals, museums, faith communities, and long-standing traditions give Orange City and much of Sioux County a distinctive Dutch-American identity.

Prairie & Production

Productive farmland, agribusiness, manufacturing, prairie landscapes, parks, trails, and recreation areas shape the county’s economy and physical character.

Education & Growth

Dordt University, Northwestern College, strong schools, health systems, businesses, and growing communities give Sioux County unusual energy for a rural region.

Where heritage, agriculture, education, and community keep growing
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Sioux County

Our County - Our Stories
Sioux County Wire

Sioux County Wire

Local Stories - DailyPhoto Credits
Radio Iowa

Iowa Business Council survey shows postive outlook on state’s economy

The Iowa Business Council (IBC) has released its third quarter Economic Outlook Survey that gauges the outlook for…

Read the Story Oct 7, 2026 • 2 min read

Around Sioux County

Stories from every corner of Sioux County.

Iowa Business Council survey shows postive outlook on state’s economy

The Iowa Business Council (IBC) has released its third quarter Economic Outlook Survey that gauges the outlook for…

Oct 7, 2026 • 2 min read

Horror film fest is highlight of Ottumwa’s Halloweenapalooza

The leaves are starting to change color, pumpkins are appearing on porches, and a scare is in the…

Oct 7, 2026 • 2 min read

Names of northeast Iowa boaters who died in Mississippi River accident released

The Iowa DNR has identified two northeast Iowa men who drowned after their fishing boat hit a submerged…

Oct 7, 2026 • 2 min read

Iowa farmers didn’t get much field time last week waiting for drier conditions

The harvest didn’t advance much last week as farmers waited for fields to dry out. The lastest U.S.D.A.…

Oct 7, 2026 • 2 min read

Celebrating Iowa 4H from calves and canning to astronomy and robots

This is National 4H Week, recognizing the accomplishments of the program that reaches more than 120,000 young people…

Oct 7, 2026 • 2 min read
SIOUX COUNTY WEATHER
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Meet Local Businesses

Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.

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Sioux County Resources

Everything You Need. All in One Place.

Find practical Sioux County links for government, schools, health care, public safety, parks, trails, utilities, libraries, courts, transportation, veterans services, and employment.

Government

Sioux County Government
County departments, services, records, notices, and courthouse information.
Official Website
Phone: 712-737-2216

Sioux County Board of Supervisors
County legislative and administrative oversight.
Official Website

Sioux County Auditor
Elections, county records, and administrative services.
Official Website

Sioux County Treasurer
Property tax, vehicle, and related county services.
Official Website
Phone: 712-737-3505

City of Orange City
Municipal services and information for the county seat.
Official Website
Phone: 712-707-4885

City of Sioux Center
Municipal services and information for Sioux Center.
Official Website
Phone: 712-722-0761

City of Rock Valley
Municipal services and community information for Rock Valley.
Official Website

We’re Here To Help.

Useful answers for exploring, visiting, and living in Sioux County.

Helpful Information

Frequently Asked Questions

From Orange City’s Dutch heritage and Sioux Center’s recreation to colleges, trails, parks, health care, and smaller communities, these answers focus on the Sioux County details people actually ask about.

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Meet Local Businesses

Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.

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Find Something Fun

Top Picks for Every Kind of Day

Build a Sioux County day around Dutch heritage, prairie trails, local food, college events, parks, shopping, museums, and family recreation.

Kids’ Fun

  1. All Seasons Center
  2. Siouxnami Waterpark
  3. Sioux Center Public Library
  4. Orange City Parks & Recreation

Restaurants

  1. Downtown Grill
  2. The Roadhouse
  3. Sioux Center Restaurants
  4. Pizza Ranch Orange City

Shopping & Retail

  1. Orange City Downtown Shops
  2. Centre Mall
  3. Sioux Center Chamber Business Directory
  4. Orange City Retail District

Clothing & Boutiques

  1. Orange City Boutiques
  2. Sioux Center Local Boutiques
  3. Dordt University Campus Store

Outdoor Fun

  1. Sandy Hollow Recreation Area
  2. Sioux Center Parks & Trails
  3. Dunlop Wildlife Trail
  4. Dordt Prairie

Free Things To Do

  1. Dutch American Heritage Museum
  2. Windmill Park
  3. Sioux Center Parks
  4. Sioux Center Public Library
  5. Dordt Prairie
Every place has a story.Find Your Next Favorite.
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