SnowLoadCheck

Kitsap County, WA Roof Snow Load - 15 psf

What ASCE 7 says about snow load in Kitsap County

Moderate
15 psf

That's Kitsap County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. §7.3.4's low-slope minimum of 15 psf is what actually governs on a flat or low-pitch roof here - higher than the 10.5 psf the base ground-load formula gives.

Converted to something you can actually eyeball on a roof: about 33 in. of fresh powder, 12 in. once it settles and packs down, or just 3 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.

Snow on Kitsap County's roofs right now?

in. of

Kitsap County in numbers

Where Kitsap County's figure sits nationally

Out of 2,758 rated US counties, Kitsap County sits at #1,320, the top 48% nationally - #7 of 10 within Washington. That's 1 psf below Washington's own county-average design load of 16 psf.

Near 47.6397°N 122.6496°W, FIPS 53035: Kitsap County counts 281,420 residents and a 15 psf map value, which the code's own factors turn into 15 psf.

How much it actually snows in Kitsap County

Most winters bring Kitsap County roughly 0.3 in. of snow - NOAA's normal at WAUNA 3 W, WA US, 18.6 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

Kitsap 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 Kitsap County's county-wide figure. See the methodology guide.