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IA · County

Mahaska County, IA.

Mahaska County is in IA (IECC zone 5A, design wind 90 mph).

Coverage in progress
Adopted edition

Coverage in progress

Inherits from IA state floor.

Design wind speed

90 mph

ASCE 7 Risk Cat II, 3-second gust at 33 ft. Drives fastener spacing, hold-downs, and opening protection.

Climate zone (IECC)

5A

Drives R-value, fenestration U-factor, and air-leakage envelope rules.

Special zones
  • HVHZ
  • WBDR
  • WUI
  • FEMA SFHA possible
Permit office

Mahaska County County Building Department

Local conditions
  • County seat: Oskaloosa

Working in Mahaska County?

Pull an address-level code packet for any property in Mahaska County. SkyCanvass resolves the parcel, looks up the adopted edition + the Mahaska County-specific amendments listed above, and emits a cited packet ready for permit submittal.

See the Iowa state overview for the broader context, or browse the state directory.

Pull a Mahaska County code packet.

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