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Rock Valley, IA

Population
4,188
U.S. Census Population Estimates Program · 2025
Elevation
1,246 ft
Median Home Value
$231,200
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$1,142/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$76,250
U.S. Census American Community Survey 5-Year · 2024

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Rock Valley in context.

OverallBest places in IowaPopulation rankingHighest population places in IowaNearest larger communitySioux Falls, South Dakota32 miles away · 213,748 residents.

About Rock Valley

Rock Valley is a city in the northwestern corner of Sioux County, Iowa, situated along the Rock River on U.S. Route 18. Platted in 1879 by Civil War veteran Colonel Ira Warren and the local railroad, the agricultural and manufacturing community of approximately 4,059 is served by the Rock Valley Community School District.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower FEMA County Hurricane Risk IndexA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0rating

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