Zapata County, TX Roof Snow Load - 0 psf
Zapata County, TX: your roof's ASCE 7 snow number, in plain English
Zapata County's roofs are built to hold 0 psf of snow, the ASCE 7-22 figure a permit reviewer checks first.
In depth, not weight: that's roughly 0 inches of fresh, light snow, 0 inches of old, settled snow, or as little as 0 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. Snow load is not a factor in roof design here at all; the ground snow load figure maps to zero.
Zapata County at a glance
- Design roof snow load0 psf
- Ground snow load, ASCE 7 map0 psf
- National rank#2,696 of 2,758
- Texas rank#232 of 254
- Population13,819
- Annual snowfall, NOAA normal0.1 in.
- FIPS48505
Zapata County by the numbers
Nationally that's #2,696 out of 2,758 rated counties, the top 98%; within Texas alone, Zapata County ranks #232 of 254. That's 5.4 psf below Texas's own county-average design load of 5.4 psf.
Zapata County, FIPS 48505, is home to 13,819 people near 26.997°N 99.1826°W. Its 0 psf ground snow load figure is the map value; 0 psf is what a roof is actually designed for.
Zapata County's snowfall, most winters
0.1 in. a year: that's Zapata County's NOAA 1991-2020 snowfall normal, measured at ZAPATA 1 S, TX US (9.8 mi away). See the density guide.
Before you rely on Zapata County's number
Treat the Zapata County figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.
For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. (How this figure is calculated.)