Adopted edition
IRC 2018
City has its own adoption — separate from county.
SD · City
Watertown, SD.
Watertown, SD — building code: IRC 2018.
Design wind speed
90 mph
ASCE 7 Risk Cat II, 3-second gust at 33 ft.
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
Watertown Building Department
www.watertownsd.us/277/Building-ServicesZIP coverage
1 ZIP codes inside Watertown.
Each ZIP resolves to the correct city + county + state on every parcel lookup. Multi-jurisdiction parcels pick up amendments from each layer.
57201
Working in Watertown?
Pull an address-level code packet for any parcel in Watertown. SkyCanvass resolves the address, looks up the Watertown-specific amendments and the Codington County county and South Dakota state floor, then emits a cited packet ready for permit submittal.
See the Codington County county overview, or the South Dakota state directory .
Pull a Watertown code packet.
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