King County, Washington (Seattle) Edit: actually, repealed last year due to racism [1] [1]: https://www.seattletimes.com/seattle-news/transportation/king-coun

King County, Washington (Seattle) Edit: actually, repealed last year due to racism [1] [1]: https://www.seattletimes.com/seattle-news/transportation/king-county-repeals-mandatory-bicycle-helmet-law/ https://www.seattletimes.com/seattle-news/transportation/kin...