SnowLoadCheck

Franklin County, IN Roof Snow Load - 20 psf

What ASCE 7 says about snow load in Franklin County

Moderate
20 psf

That's Franklin County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. Flat and low-pitch roofs in Franklin County are actually governed by ASCE 7's §7.3.4 minimum of 20 psf, not the 14 psf the ground-load formula alone would produce.

Converted to something you can actually eyeball on a roof: about 44 in. of fresh powder, 16 in. once it settles and packs down, or just 4 in. if it's turned to ice. Modern-code homes carry a load like this without issue; an older addition, a carport, or any flat-roofed section is where it is worth checking first.

Franklin County, IN: quick facts

Where Franklin County's figure sits nationally

Out of 2,758 rated US counties, Franklin County sits at #925, the top 34% nationally - #56 of 89 within Indiana. 19.3 psf is Indiana's typical county figure - Franklin County beats it by 0.7 psf.

Near 39.4098°N 85.067°W, FIPS 18047: Franklin County counts 23,136 residents and a 20 psf map value, which the code's own factors turn into 20 psf.

How much it actually snows in Franklin County

Most winters bring Franklin County roughly 17.6 in. of snow - NOAA's normal at BROOKVILLE, IN US, 3 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

Franklin County's number above is ASCE 7-22's default case, not a custom calculation: ordinary residential occupancy, heated, sited on ground that's neither fully sheltered nor fully exposed. Any one of those changing - pitch, exposure, heating, occupancy - moves the real figure.

Nothing here substitutes for an address-level number. Get one free, in about a minute, from the ASCE 7 Hazard Tool using your own coordinates rather than Franklin County's county-wide figure. See the methodology guide.