US Land Life

Iowa

Buying Land in Calhoun County, Iowa

Calhoun County, seat Rockwell City, has adopted Chapter 335 county zoning (Zoning Ordinance amended 2015, Comprehensive Plan 2013) and its own Floodplain Management Ordinance, both administered locally. Because the county sits in one of Iowa's hog- and wind-producing regions, two things stand out for a land buyer here: the Board of Supervisors runs its own Master Matrix hearings for large confinement operations, and part of MidAmerican Energy's roughly 300-megawatt Pomeroy Wind Farm sits on Calhoun County ground.

County Zoning Adopted (Ch. 335), No Local Building Code

Generally favorable

Calhoun County has adopted county zoning under Iowa Code Chapter 335 -- its own Zoning Ordinance (amended 2015) and a 2013 Comprehensive Plan govern unincorporated land, so (unlike some Iowa counties) you're not starting from zero on zoning here. The county issues its own building permits but does not administer a local building code; building-code questions route to the Iowa State Building Code Bureau, Division of the State Fire Marshal. Confirm the specific zoning district and any applicable overlay for a parcel with the county Zoning office before assuming a use is permitted.

County Runs Its Own Floodplain Ordinance

Generally favorable

Calhoun County administers its own Floodplain Management Ordinance (No. 2018-2), which designates the Floodplain (Overlay) District using the boundaries on the Flood Insurance Rate Map (FIRM) for Calhoun County and Incorporated Areas, effective April 19, 2016. A parcel's floodplain status is a real overlay on top of its base zoning district, not a separate, disconnected question -- confirm current FIRM panel status for a specific parcel with the county rather than relying on an older map.

Confinement Siting Runs Through the Master Matrix -- and CAFO Interest Here Is Real

Case-by-case / verify locally

Iowa's Master Matrix (Iowa Code § 459.304) lets a county board of supervisors score proposed large confinement-feeding-operation construction permits on siting, community, and environmental factors; Calhoun County's own Board of Supervisors duties confirm it conducts Master Matrix hearings as part of its regular business, meaning the county actively participates in this process rather than deferring entirely to the state. Separately, 2018 Des Moines Register reporting described Iowa Select Farms considering three 2,450-head confinement sites in the county -- dated reporting we disclose as a historical signal of active regional hog-confinement interest, not a current pipeline. If a parcel is near, or intended for, a large confinement operation, confirm current Master Matrix hearing history and any pending construction-permit applications with the county rather than assuming a fixed count.

Part of a ~300 MW Wind Farm Sits in the County

Generally favorable

MidAmerican Energy's Pomeroy Wind Farm (roughly 299.83 MW) spans Pocahontas and Calhoun counties, and around 2018 the project was "repowered" -- roughly 171 turbines replaced with newer 2.3 MW Siemens SWT-2.3-101 units for more output and a longer service life. That means an established, revenue-generating wind lease market already exists in parts of the county; a parcel with or near an existing turbine or easement should have its lease terms, easement footprint, and any decommissioning obligations confirmed directly against the recorded agreement rather than assumed from a neighboring parcel.

Zoning, building permits, and floodplain: three separate layers, one office

Calhoun County's Zoning office administers the county's Chapter 335 Zoning Ordinance (amended 2015) and the 2013 Comprehensive Plan for unincorporated land, and separately administers the county's own Floodplain Management Ordinance (No. 2018-2), which layers a Floodplain (Overlay) District on top of standard zoning wherever a parcel falls within the FIRM boundaries in effect since April 19, 2016. The county issues its own building permits, but Calhoun County does not have a locally-adopted building code of its own -- for building-code-specific questions (as opposed to zoning or floodplain questions), the state directs inquiries to the Iowa State Building Code Bureau, Division of the State Fire Marshal.

For a buyer, the practical sequence is: confirm the zoning district and any Board of Adjustment history for the parcel with the Zoning office, confirm whether the parcel falls in the Floodplain Overlay District against the current FIRM, and separately confirm the county's building-permit process (and, if relevant, the state building-code contact) before assuming what can be built and where.

Livestock confinement: the Master Matrix is a real, active county process here

Iowa Code Chapter 459 requires a construction permit for a new or expanding confinement feeding operation above certain animal-unit thresholds, and lets a county board of supervisors opt in to scoring those applications under the Master Matrix -- a point system covering factors like setbacks from neighbors and water sources, manure management, and community impact, administered locally rather than by DNR alone. Calhoun County's Board of Supervisors lists Master Matrix hearings among its regular duties, meaning the county is an active participant in this process, not a bystander. Separately, 2018 reporting from the Des Moines Register described Iowa Select Farms considering three 2,450-head confinement facilities in the county -- we flag this as a historical data point on the county's hog-confinement activity, not a current, verified pipeline of projects, since we could not confirm a more recent restatement of that specific figure.

If your parcel is near an existing or proposed confinement operation -- whether because you're concerned about odor and setbacks, or because you're the one proposing a facility -- confirm current Master Matrix hearing schedules, any pending construction-permit applications, and the county's specific scoring history directly with the Board of Supervisors and county Environmental Health, rather than relying on older news coverage.

Wind energy: part of the Pomeroy Wind Farm sits in Calhoun County

MidAmerican Energy's Pomeroy Wind Farm, with a capacity of roughly 299.83 MW, spans Pocahontas and Calhoun counties. Around 2018, the project underwent a "repowering" -- roughly 171 of the original turbines were replaced with newer 2.3 MW Siemens SWT-2.3-101 units, extending the project's service life and increasing output. For a Calhoun County land buyer, this means an established commercial wind-lease market already exists in parts of the county, with real precedent for lease payments, easement footprints, and turbine setbacks. If a parcel carries or borders an existing turbine, easement, or transmission corridor, get the actual recorded lease and easement documents (not a verbal summary) and confirm current decommissioning-bond and payment terms with the county Zoning office and, where relevant, MidAmerican Energy directly.

Who to Call Before Buying Land in Calhoun County

We could not confirm a direct phone number for the Zoning office, Floodplain Management, or GIS separate from the department webpages listed above -- call the county's main courthouse line if a specific office doesn't answer. Well permits and septic permits both route through Environmental Health, which also fields questions about Master Matrix / confinement-siting hearing schedules on behalf of the Board of Supervisors.

Planning & Zoning

Calhoun County Zoning

Zoning district classification, floodplain overlay status, building permits, and Board of Adjustment matters for a specific parcel.

Official website →

Floodplain / Stormwater

Calhoun County Floodplain Management (Zoning Office)

Floodplain (Overlay) District status and FIRM panel confirmation for a specific parcel, under Floodplain Ordinance No. 2018-2.

Official website →

Environmental Health

Calhoun County Environmental Health

Septic system permits, private well permits, and Master Matrix / confinement-operation questions for a specific parcel.

Phone: 712-297-8323Official website →

Wells / Private Water

Calhoun County Environmental Health (Well Permits)

Private well construction permits for a specific parcel, issued locally per Iowa DNR's county-delegated private well program.

Phone: 712-297-8323Official website →

Roads / Driveway / Access

Calhoun County Engineer / Secondary Roads

Secondary road access, right-of-way, and driveway-entrance permit questions for a specific parcel.

Phone: 712-297-8322Official website →

Agricultural Extension

ISU Extension and Outreach -- Calhoun County

Agricultural, 4-H, and land-use educational resources for the county.

Phone: 712-297-8611Official website →

Assessor / Property Tax

Calhoun County Assessor

Assessed value and property tax questions for a specific parcel.

Phone: 712-297-7500Official website →

Recorder / Clerk / Land Records

Calhoun County Recorder

Recorded deed, easement (including wind-lease easements), and plat history for a specific parcel.

Phone: 712-297-8121Official website →

GIS / Parcel Records

Calhoun County GIS

Parcel maps and GIS data for a specific address or parcel.

Official website →

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Sources

  1. Calhoun County Zoning Ordinance (amended 2015) — Calhoun County, Iowa Government (accessed 2026-09)
  2. Calhoun County Comprehensive Plan (2013) — Calhoun County, Iowa Government (accessed 2026-09)
  3. Zoning — Calhoun County, Iowa Government (accessed 2026-09)
  4. Calhoun County Floodplain Management Ordinance No. 2018-2 — Calhoun County, Iowa Government (accessed 2026-09)
  5. Floodplain Management — Calhoun County, Iowa Government (accessed 2026-09)
  6. Environmental Health — Calhoun County, Iowa Government (accessed 2026-09)
  7. Board of Supervisors Duties — Calhoun County, Iowa Government (accessed 2026-09)
  8. Master Matrix — Iowa State Association of Counties (accessed 2026-09)
  9. Iowa Code Chapter 459, Animal Agriculture Compliance — Iowa Legislature (accessed 2026-09)
  10. AFO Construction Permits — Iowa Department of Natural Resources (accessed 2026-09)
  11. Pomeroy turbines are being repowered — Messenger News (Fort Dodge, IA) (accessed 2026-09)
  12. Siemens Energy, Mortenson Construction and MidAmerican Energy Complete New Wind Turbine Project Near Pomeroy, Iowa — PR Newswire (accessed 2026-09)
  13. Engineer — Calhoun County, Iowa Government (accessed 2026-09)
  14. ISU Extension and Outreach Calhoun County — Iowa State University Extension and Outreach (accessed 2026-09)
  15. Assessor — Calhoun County, Iowa Government (accessed 2026-09)
  16. Iowa Land Records — Calhoun County, Iowa Government (accessed 2026-09)
  17. Calhoun County GIS — Calhoun County, Iowa Government (accessed 2026-09)

Last reviewed 2026-09