Rock Valley is a city in Sioux County, Iowa, home to about 4,059 people across 4.5 square miles. Its ZIP code is 51247.
Homes sold for a median of $78 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Rock Valley. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Rock Valley’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Rock Valley well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Eppley Airfield (OMA)133 miles away |
|---|---|
| Closer regional airport | Sioux Falls Regional Airport (FSD)34 miles away |
| Nearest city of 250,000+ | Omaha, NE134 miles away |
| Nearest city of 1 million+ | Chicago, IL449 miles away |
Straight-line distances from the center of Rock Valley; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Rock Valley had 4,059 residents in the 2020 census, up 50% since 2000.
It’s the 103rd largest of 1,019 towns in Iowa by population.
Sioux County grew from 23,337 residents in 1900 to 35,872 in 2020.
Sioux County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 85°F in summer, and winter lows average 9°F. About 30 inches of rain and melted snow fall in a typical year, with about 35 inches of snow.
Source: NOAA 1991–2020 climate normals, Sioux Ctr 2 Se, IA weather station (13 miles away).
20,910 jobs at 1,345 businesses in Sioux County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
42 doctors and other health care providers list an office in Rock Valley.
Nearest hospitals
Providers with an office here
| Primary care doctors | 3 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 3 |
| Nurse practitioners and physician assistants | 6 |
| Mental health providers | 21 |
| Physical and occupational therapists | 1 |
| Optometrists | 1 |
| Chiropractors | 5 |
| Pharmacies | 3 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (5 nearby)
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Rock Valley Comm School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Rock Valley Elementary SchoolRock Valley | Pre-K–5 | 370 | Public | 1.3 mi |
| Rock Valley Pre-SchoolRovk Valley | Pre-K–K | 77 | Public | 1.3 mi |
| Rock Valley Middle SchoolRock Valley | 6–8 | 195 | Public | 1.3 mi |
| Rock Valley High SchoolRock Valley | 9–12 | 242 | Public | 1.3 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Netherlands Reformed Christian SchoolRock Valley | Pre-K–12 | 422 | Calvinist | 1.2 mi |
| Rock Valley Christian SchoolRock Valley | Pre-K–8 | 202 | Christian (no specific denomination) | 0.8 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
Buying or selling around Rock Valley? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.