Snow Load in South Dakota

66 counties — Average 39.1 PSF (Moderate)

5
41
19
1
Light (7.6%) Moderate (62.1%) Heavy (28.8%) Case Study (1.5%)
Light — 5 counties with 1–20 PSF. Standard roof construction is typically sufficient.
Moderate — 41 counties with 21–40 PSF. Roofs need reinforced framing to handle regular snow buildup.
Heavy — 19 counties with 41–60 PSF. Engineered roof systems required for significant snow accumulation.
Case Study — 1 county where snow loads vary too much to assign one number. A licensed engineer must determine the load for your specific site.

Based on ASCE 7-22, the national standard for structural snow loads used by engineers and building codes across the US.

South Dakota Snow Load Map

Counties colored by snow load classification.

Highest Snow Load Counties

Brookings50 PSF
Brown50 PSF
Campbell50 PSF
Clark50 PSF
Codington50 PSF
Corson50 PSF
Day50 PSF
Deuel50 PSF
Dewey50 PSF
Edmunds50 PSF
Faulk50 PSF
Grant50 PSF
+7 more
South Dakota

Check Your ZIP Code

All 66 Counties — By Snow Load

CountyClassificationSnow Load
Aurora Moderate 40 PSF
Beadle Moderate 40 PSF
Bennett Moderate 25 PSF
Bon Homme Moderate 40 PSF
Brookings Heavy 50 PSF
Brown Heavy 50 PSF
Brule Moderate 40 PSF
Buffalo Moderate 40 PSF
Butte Moderate 30 PSF
Campbell Heavy 50 PSF
Charles Mix Moderate 40 PSF
Clark Heavy 50 PSF
Clay Moderate 35 PSF
Codington Heavy 50 PSF
Corson Heavy 50 PSF
Custer Light 20 PSF
Davison Moderate 40 PSF
Day Heavy 50 PSF
Deuel Heavy 50 PSF
Dewey Heavy 50 PSF
Douglas Moderate 40 PSF
Edmunds Heavy 50 PSF
Fall River Light 15 PSF
Faulk Heavy 50 PSF
Grant Heavy 50 PSF
Gregory Moderate 40 PSF
Haakon Moderate 30 PSF
Hamlin Heavy 50 PSF
Hand Moderate 40 PSF
Hanson Moderate 40 PSF
Harding Case Study Site Study
Hughes Moderate 35 PSF
Hutchinson Moderate 40 PSF
Hyde Moderate 40 PSF
Jackson Moderate 25 PSF
Jerauld Moderate 40 PSF
Jones Moderate 35 PSF
Kingsbury Moderate 40 PSF
Lake Moderate 40 PSF
Lawrence Moderate 25 PSF
Lincoln Moderate 35 PSF
Lyman Moderate 40 PSF
Marshall Heavy 50 PSF
McCook Moderate 40 PSF
McPherson Heavy 50 PSF
Meade Light 20 PSF
Mellette Moderate 25 PSF
Miner Moderate 40 PSF
Minnehaha Moderate 40 PSF
Moody Moderate 40 PSF
Oglala Lakota Light 20 PSF
Pennington Light 20 PSF
Perkins Moderate 40 PSF
Potter Heavy 50 PSF
Roberts Heavy 50 PSF
Sanborn Moderate 40 PSF
Spink Heavy 50 PSF
Stanley Moderate 35 PSF
Sully Moderate 40 PSF
Todd Moderate 25 PSF
Tripp Moderate 35 PSF
Turner Moderate 35 PSF
Union Moderate 35 PSF
Walworth Heavy 50 PSF
Yankton Moderate 35 PSF
Ziebach Moderate 35 PSF

Source: ASCE 7-22 ground snow load data

Frequently Asked Questions

What is the snow load in South Dakota?

South Dakota has an average ground snow load of 39.1 PSF, classified as moderate. Out of 66 counties: 5 light, 41 moderate, 19 heavy, 1 case study.

Which South Dakota counties have the highest snow load?

South Dakota has 19 counties with heavy snow load (41-60 PSF). 1 counties require a site-specific case study. See the county table above for a complete breakdown.

How do I check snow load for my South Dakota address?

Enter your ZIP code in the search box above to see your area's ASCE 7-22 ground snow load, classification, and roof snow load calculator.

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