Sinkhole risk in Thurston County, WA: No soluble rock mapped
No soluble rock mapped
No soluble bedrock mapped.
- On soluble rock
- 0%
- At or near the surface
- 0%
- Buried under cover
- 0%
What this means before you buy
No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.
Across 723 square miles, under one square mile of Thurston County maps onto soluble rock. With about 302,912 residents (419 per square mile), homes are spread across towns and farmland, and a mapped unit may or may not reach the developed parts. The figures come from 551 map points about 1.1 miles apart, so a pocket smaller than that can be missed or overstated.
Read next: how these percentages are measured, and the warning signs that apply anywhere.
Counties around Thurston County
The nearest county rated sinkhole country is Emery County, UT, about 820 miles southeast. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.
- Lewis County, WA 33 mi southeast · 0% at surface
- Pierce County, WA 33 mi east · 0% at surface
- Mason County, WA 33 mi northwest · 0% at surface
- Grays Harbor County, WA 48 mi west · 0% at surface
- Kitsap County, WA 49 mi north · 0% at surface
- Cowlitz County, WA 52 mi south · 0% at surface
Against the rest of Washington
Thurston County ranks 35 of 39 in Washington for soluble rock at the surface, and sits above 0% of US counties on that measure.
- San Juan County 4%
- Stevens County 3%
- Pend Oreille County 2%
- Okanogan County under 1%
- Ferry County under 1%