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Rock Valley, Iowa
City
Motto: "Place of opportunities"
Location of Rock Valley, Iowa
Location of Rock Valley, Iowa
Country  United States
State  Iowa
County Sioux
Area
 • Total 3.27 sq mi (8.47 km2)
 • Land 3.22 sq mi (8.34 km2)
 • Water 0.05 sq mi (0.13 km2)
Elevation 1,250 ft (381 m)
Population (2010)
 • Total 3,354
 • Estimate (2012) 3,478
 • Density 1,041.6/sq mi (402.2/km2)
Time zone Central (CST) (UTC-6)
 • Summer (DST) CDT (UTC-5)
ZIP code 51247
Area code(s) 712
FIPS code 19-68205
GNIS feature ID 0460747

Rock Valley is a city in Sioux County, Iowa, United States, along the Rock River. The population was 3,354 at the 2010 census.

History

The first homesteads were established in 1868.

Geography

Rock Valley is located at 43°12′6″N 96°17′47″W / 43.20167°N 96.29639°W / 43.20167; -96.29639 (43.201624, -96.296379).

According to the United States Census Bureau, the city has a total area of 3.27 square miles (8.47 km2), of which, 3.22 square miles (8.34 km2) is land and 0.05 square miles (0.13 km2) is water.

Rock Valley is located on U.S. Route 18.

Demographics

Historical populations
Year Pop. ±%
1880 100 —    
1890 542 +442.0%
1900 1,054 +94.5%
1910 1,198 +13.7%
1920 1,347 +12.4%
1930 1,204 −10.6%
1940 1,507 +25.2%
1950 1,581 +4.9%
1960 1,693 +7.1%
1970 2,205 +30.2%
1980 2,706 +22.7%
1990 2,540 −6.1%
2000 2,702 +6.4%
2010 3,354 +24.1%
2014 3,626 +8.1%
2015 3,693 +1.8%
Source: and Iowa Data Center
Source:
U.S. Decennial Census

2010 census

As of the census of 2010, there were 3,354 people, 1,283 households, and 870 families residing in the city. The population density was 1,041.6 inhabitants per square mile (402.2/km2). There were 1,356 housing units at an average density of 421.1 per square mile (162.6/km2). The racial makeup of the city was 92.2% White, 0.3% African American, 0.4% Asian, 5.8% from other races, and 1.2% from two or more races. Hispanic or Latino of any race were 12.2% of the population.

There were 1,283 households of which 32.9% had children under the age of 18 living with them, 60.9% were married couples living together, 4.2% had a female householder with no husband present, 2.7% had a male householder with no wife present, and 32.2% were non-families. 28.8% 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 2.54 and the average family size was 3.16.

The median age in the city was 35.8 years. 27.3% of residents were under the age of 18; 8.1% were between the ages of 18 and 24; 25.3% were from 25 to 44; 19.4% were from 45 to 64; and 19.9% were 65 years of age or older. The gender makeup of the city was 49.4% male and 50.6% female.

2000 census

As of the census of 2000, there were 2,702 people, 1,124 households, and 750 families residing in the city. The population density was 1,599.9 people per square mile (617.3/km²). There were 1,202 housing units at an average density of 711.7 per square mile (274.6/km²). The racial makeup of the city was 98.48% White, 0.11% African American, 0.07% Native American, 0.33% Asian, 0.59% from other races, and 0.41% from two or more races. Hispanic or Latino of any race were 1.04% of the population.

There were 1,124 households out of which 29.4% had children under the age of 18 living with them, 59.8% were married couples living together, 5.2% had a female householder with no husband present, and 33.2% were non-families. 30.9% of all households were made up of individuals and 16.5% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 3.00.

In the city, the population was spread out with 25.4% under the age of 18, 9.6% from 18 to 24, 24.4% from 25 to 44, 18.3% from 45 to 64, and 22.3% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 92.6 males. For every 100 females age 18 and over, there were 89.8 males.

The median income for a household in the city was $36,967, and the median income for a family was $45,074. Males had a median income of $31,219 versus $20,833 for females. The per capita income for the city was $19,660. About 1.9% of families and 4.1% of the population were below the poverty line, including 6.7% of those under age 18 and 3.2% of those age 65 or over.

Rivers Bend Campground

The Rivers Bend Campground first opened in late October 2009. It was given to the City of Rock Valley by Van Zee Enterprises. Previously used to mine sand and gravel, this former quarry was used to make the campground. The campground was constructed by the major efforts of RC Concrete, the City Crew and students from Northwest Iowa Community College.

Rally In the Valley

The city of Rock Valley hosts a celebration usually in the first week of August. They have the annual tractor pull, car show, parade, & other activities.

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