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Renwick, Iowa
Streetside in Renwick
Streetside in Renwick
There's only one Renwick, and it's in Iowa
Location of Renwick, Iowa
Location of Renwick, Iowa
Coordinates: 42°49′42″N 93°58′42″W / 42.82833°N 93.97833°W / 42.82833; -93.97833Coordinates: 42°49′42″N 93°58′42″W / 42.82833°N 93.97833°W / 42.82833; -93.97833
Country  United States
State  Iowa
County Humboldt
Incorporated October 17, 1891
 • Total 1.00 sq mi (2.60 km2)
 • Land 1.00 sq mi (2.60 km2)
 • Water 0.00 sq mi (0.00 km2)
1,155 ft (352 m)
 • Total 234
 • Density 233.1/sq mi (90.00/km2)
Time zone UTC-6 (Central (CST))
 • Summer (DST) UTC-5 (CDT)
ZIP code
Area code(s) 515
FIPS code 19-66450
GNIS feature ID 0460588

Renwick is a city in Humboldt County, Iowa, United States. The population was 234 at the time of the 2020 census.


Renwick was platted in 1882.


Renwick is located at 42°49′42″N 93°58′42″W / 42.82833°N 93.97833°W / 42.82833; -93.97833 (42.828341, -93.978284).

According to the United States Census Bureau, the city has a total area of 1.00 square mile (2.59 km2), all of it land.

Renwick's population density is estimated at 261 people per square mile which is considered very low for urban areas.


Historical populations
Year Pop. ±%
1900 350 —    
1910 372 +6.3%
1920 501 +34.7%
1930 491 −2.0%
1940 470 −4.3%
1950 474 +0.9%
1960 477 +0.6%
1970 429 −10.1%
1980 410 −4.4%
1990 287 −30.0%
2000 306 +6.6%
2010 242 −20.9%
2020 234 −3.3%
U.S. Decennial Census

2010 census

As of the census of 2010, there were 242 people, 119 households, and 70 families residing in the city. The population density was 242.0 inhabitants per square mile (93.4/km2). There were 141 housing units at an average density of 141.0 per square mile (54.4/km2). The racial makeup of the city was 97.9% White, 0.4% African American, 0.4% Asian, 0.4% from other races, and 0.8% from two or more races. Hispanic or Latino of any race were 1.2% of the population.

There were 119 households, of which 23.5% had children under the age of 18 living with them, 49.6% were married couples living together, 3.4% had a female householder with no husband present, 5.9% had a male householder with no wife present, and 41.2% were non-families. 37.0% of all households were made up of individuals, and 13.5% had someone living alone who was 65 years of age or older. The average household size was 2.03 and the average family size was 2.63.

The median age in the city was 46.1 years. 19.8% of residents were under the age of 18; 5.8% were between the ages of 18 and 24; 21.5% were from 25 to 44; 31.9% were from 45 to 64; and 21.1% were 65 years of age or older. The gender makeup of the city was 50.4% male and 49.6% female.

Arts and culture

Renwick Public School
The old Renwick Public School building.
Annual festivals

Donkey Daze is Renwick's town festival held every year during the first Saturday in June and features a six court volleyball tournament. As many as 25 teams from around North Central Iowa have participated in past years.

Renwick is also the home to the Bobcat Football Challenge, founded in 1985. Everything about the challenge and its people are part of the Bobcat Football Report, a weekly publication covering 7 unique statistical categories. A weekly TEAM pickem competition is covered as well.

Renwick Public Library

The library has in its collection 5,351 books, 131 audio materials, 532 video materials, and 23 serial subscriptions.


Renwick Public School
The old Renwick Public School building.

The Humboldt Community School District operates public schools. The city is served by Mease Elementary (Dakota City), Taft Elementary School (Humboldt), Humboldt Middle School, and Humboldt High School.

Previously Renwick was served by the Boone Valley Community School District, which operated the Boone Valley School, built in 1915, in Renwick. On January 1, 1988, the Boone Valley district dissolved, with a portion absorbed by other school districts. That year the Boone Valley School closed, and in 1989 alumnus Frank Siemens and his family bought it for $5,000. The business Boone Valley Implement is in the former school. By 2015 Siemens spent $500,000 to refurbish the building. In 2015 Jason Clayworth and Charles Litchfield of the Des Moines Register stated "A large portion of the older section of the school remains relatively unused."

Renwick Public Library has in its collection 5,351 books, 131 audio materials, 532 video materials, and 23 serial subscriptions.


Renwick has a privately owned airport licensed in 1991 called the Flying S Ranch Airport. The airport is located approximately 2 miles (3.2 km) from the center of town.

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