Land — Midwest — IA
Water rights, rainwater law, cottage food rules, right-to-farm protections, livestock zoning, and growing conditions for Iowa landowners and buyers.
Land law varies by county, municipality, and HOA. Verify all information with your county planning department, state water agency, and a licensed attorney before any land purchase or development decision.
Water law
Reasonable use riparian doctrine for surface water. Significant irrigation withdrawals require a permit from Iowa DNR.
No state restrictions. Collection permitted without limit.
Land use and production law
Iowa Cottage Food Law: $50,000 gross annual cap; direct consumer, farmers markets, and roadside stands; label required. Verify with Iowa Department of Inspections, Appeals, and Licensing.
Iowa Agricultural Operations Act (Iowa Code Chapter 172D) protects established agricultural operations.
Agricultural zones are broadly permissive. Johnson County (Iowa City) and Polk County (Des Moines suburbs) have residential zone restrictions.
Growing conditions
Hardiness zones
4a (north) – 6a (south)
Last frost
Apr 15 (north) – Apr 1 (south)
First frost
Oct 1 (north) – Oct 15 (south)
Free soil testing
Iowa State University Extension and Outreach — click to visit
Soil notes
Some of the most fertile soils in the world — deep Mollisols with high organic matter. Iowa's loess-derived soils have supported corn and soybean production for 150+ years. pH typically 6.0–7.0.