Adopted edition
Coverage in progress
Local amendments override state floor.
IA · County
Polk County, IA.
Population: ~492,000. Largest county Des Moines
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
Polk County County — dsm.city
www.dsm.city/departments/development-services/building-and-fire-safety/index.php
Local conditions
- County seat: Des Moines (state capital)
Common amendments + overlays
What's specific to this county.
- §01 County has local amendments to the state floor — consult the building department.
Working in Polk County?
Pull an address-level code packet for any property in Polk County. SkyCanvass resolves the parcel, looks up the adopted edition + the Polk 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 Polk County code packet.
Free to start — property lookups, state code access, the hail map, and your first storm report on us. No credit card required to look up an address.