ZIP Code 47620
Posey County, Indiana — Mount Vernon
What This Means
Posey County, Indiana has a light ground snow load of 15 PSF per ASCE 7-22. At this level, most standard residential roofs are designed to handle the load without issue. However, flat or low-slope roofs should still be checked for drifting and sliding snow.
Snow Load Details
| ZIP Code | 47620 |
| County | Posey |
| City | Mount Vernon |
| State | Indiana (IN) |
| Ground Snow Load | 15 PSF — Light |
| Classification Range | 1 - 20 PSF |
| Data Quality | Measured |
Source: ASCE 7-22 ground snow load polygons via ArcGIS
Roof Snow Load Calculator
ASCE 7-22 flat roof formula: pf = 0.7 × Ce × Ct × Is × pg
Your ground snow load (pg): 15 PSF
ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.
Posey County Snow Load Map
Counties colored by snow load classification. Gray = No Load, Blue = Light, Amber = Moderate, Orange = Heavy, Red = Extreme, Purple = Case Study.
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Frequently Asked Questions
What is the ground snow load for ZIP code 47620?
ZIP code 47620 is in Posey County, Indiana, with a ground snow load of 15 PSF, classified as light per ASCE 7-22.
Is my roof strong enough for snow in 47620?
With a light ground snow load of 15 PSF, standard residential construction typically handles this load, but verify with your local building code.
What county is ZIP code 47620 in?
ZIP code 47620 is in Posey County, Indiana (IN).