- Algona is a city located in Kossuth County, Iowa, United States. It is the county seat of Kossuth County and has a population of approximately 5,500 people as of 2020. Algona is known for its historic downtown area and is home to several parks, including the picturesque Smith Lake and the Ambrose A. Call State Park. The city is also home to the Algona Freedom Park, a memorial honoring veterans from the area. Algona is located about 100 miles north of Des Moines, the capital of Iowa.