King County is the most populous county in Washington and the 12th-most populous in the United States. Is it legal to wear a thong in King County?
The opinions provided here are for informational purposes only. Laws change frequently; this post may be out of date. Review current codes before wearing a thong and talk to a lawyer if you need legal advice.
Washington 
Revised Code of Washington (RCW) 9A.88.010
King County 
Algona 
Algona Municipal Code 9.30.010
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E. “Unlawful public exposure” means:
- A public exposure of any portion of the human anus, buttocks or genitals;
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Auburn 
Auburn City Code 9.82.010
Beaux Arts Village 
Beaux Arts Village Municipal Code
Bellevue 
Bellevue City Code 10.04
Black Diamond 
Black Diamond Municipal Code 9.51
Bothell 
Bothell Municipal Code 9.01.070
Burien 
Burien Municipal Code 9.95.200
Carnation 
Carnation Municipal Code 9.28.030
Clyde Hill 
Clyde Hill Municipal Code 9.30.020
Covington 
Covington Municipal Code 9.140.050
Des Moines 
Des Moines Municipal Code 9.76.020
Duvall 
Duvall Municipal Code 7.01.200
Enumclaw 
Enumclaw Municipal Code 9.54.030
A. It shall be unlawful for any person 10 years of age or older to recklessly, knowingly, or intentionally appear in a public place other than a public place provided or set apart for nudity, or to recklessly, knowingly, or intentionally cause or permit another person 10 years of age or older to appear in a public place other than a public place provided or set apart for nudity, in a state of nudity, which includes a state of dress or undress such that any of the following body parts or portions thereof are exposed to view or are covered with anything other than a full and opaque covering which completely covers all of the described area:
The male or female genitals, pubic area, buttocks or anal cleavage.
The nipple or areola of the female breast; and in addition at least one-half of that outside surface of the breast located below the top of the areola, which area shall be reasonably compact and contiguous to the areola.
B. Attire which is insufficient to comply with these requirements includes but it not limited to those items commonly known as G-strings, T-backs, dental floss, and thongs.
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Federal Way 
Federal Way Revised Code 6.45.025
(1) A person is guilty of lewd conduct if in a public place the person intentionally:
(a) Exposes any of the following body parts of the person without a full and opaque covering:
(i) Any part of the male or female genitals, pubic hair, pubic area, perineum, anus, or bottom one-half of the anal cleft;
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Hunts Point 
Hunts Point Municipal Code 9.05.010
Issaquah 
Issaquah Municipal Code 9.50.010
Kenmore 
Kenmore Municipal Code 9.05.490
Kent 
Kent Municipal Code 9.02.070
Kirkland 
Kirkland Municipal Code 11.20.020
Lake Forest Park 
Lake Forest Park Municipal Code 9.30.020
Maple Valley 
Maple Valley Municipal Code 9.05.425
Medina 
Medina Municipal Code 9.04.030
Mercer Island 
Mercer Island Municipal Code 9.18.020
Milton 
Milton Municipal Code 9.04.020
Newcastle 
Newcastle Municipal Code 9.05.580
Normandy Park 
Normandy Park Municipal Code 7.04.185
North Bend 
North Bend Municipal Code 9.180.010
Pacific 
Pacific Municipal Code 9.100.050
Redmond 
Redmond Municipal Code 9.38
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I. “Unlawful public exposure” means:
1.A public exposure of any portion of the human anus, buttocks or genitals;
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Renton 
Renton Municipal Code 6-18-18
Sammamish 
Sammamish Municipal Code 9.05.340
SeaTac 
SeaTac Municipal Code 8.05.300
Seattle 
Seattle Municipal Code 12A.09.020
It’s legal to be naked (anywhere) in Seattle
Shoreline 
Shoreline Municipal Code 9.10.550
Skykomish 
Skykomish Municipal Code 9.05.010
Snoqualmie 
Snoqualmie Municipal Code 9.82.010
Tukwila 
Tukwila Municipal Code 8.50.030
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- “Indecent exposure” means showing, or making open to view, one’s genitals, pubic area, or buttocks, or the mature female breast;
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Woodinville 
Woodinville Municipal Code 9.03.162
Yarrow Point 
Yarrow Point Municipal Code 9.04.010