ZIP code 51247 covers Rock Valley, Iowa in Sioux County. This area is served by 28 utility providers across 4 categories. The average residential electricity rate here is 9.9¢/kWh. 49% of households use natural gas as their primary heating fuel.
Estimated monthly utility costs
$383/month
Cost estimates from U.S. Census ACS 5-year data · Shorter bar = lower cost
Electric
Water
Sewer
Internet
Nearby ZIP codes
Frequently asked questions
How do I set up utilities when moving to 51247?
Contact each provider separately before your move-in date. Start with electric (Interstate Power and Light Co) since those typically need a few business days to activate. Water and sewer are often handled with one call to your local utility. Set up internet last since it may require an installation visit.
How much do utilities cost per month in 51247?
Total estimated monthly costs are around $382, which is about $1 less than the national average. Electricity is the biggest expense at roughly $125/month. Natural gas runs about $175. Water and sewer combined are around $83. Costs vary by home size, usage, and season. Estimates from U.S. Census ACS data.
Is electricity expensive in 51247?
No — electricity in Rock Valley, IA costs about 34% less than the national average. Compared to Iowa overall, rates here are about 30% lower. Based on 2023 NREL residential electricity rate data.
What internet providers are available in 51247?
Rock Valley, IA has strong broadband coverage. Providers include AT&T (Fixed Wireless up to 100 Mbps), Alliance Communications Cooperative Inc (Fiber up to 1,000 Mbps), CenturyLink (DSL up to 40 Mbps), Heartland Telecommunications Company of Iowa (Fiber up to 1,000 Mbps), Premier Communications (Cable / Fiber up to 1,000 Mbps). Availability varies by street address. Based on FCC Broadband Data Collection filings.
What county is 51247 in?
ZIP code 51247 is in Sioux County, Iowa.
Disclaimer: Provider information is sourced from federal databases including HIFLD, EPA SDWIS, FCC Broadband Data, and EIA-861. Utility cost estimates are from the U.S. Census Bureau American Community Survey 5-Year Estimates. Electric rates are based on 2023 NREL data. Coverage areas are approximate and may not reflect recent changes. Please verify directly with your provider.
Data sources: U.S. Census Bureau, NREL, EIA-861, HIFLD, EPA, FCC. Last updated: April 2026.