Clark's Food Store, Hygiene Colorado, Boulder County. Sam Clark is going on third generation at this little general store, RV Park. Hygiene is an unincorporated community with a U.S. Post Office in Boulder County, Colorado, United States. The Hygiene Post Office has the ZIP Code 80533. This community's name stems from a time when it had a sanitarium to work with tuberculosis patients. The sanitarium was started in 1882 Jacob S. Flory and his Church of the Brethren, who had come to the area a few years earlier to work with tuberculosis patients. They just remodeled that church. It also has a cemetary Elevation 5,095. This place is a big stop for all the bikers. A lot of races go by here and is also one of the big training grounds in the Boulder County Country. Some of the other routes go up into the Rocky Mountain elevation above 9,000 ft. Great for your home, office or makes a gift. Buy this Artwork as Fine Art Print, Canvas Print, Custom Framed Giclee Print and Greeting Cards. Guaranteed to liven any decor. Great Conversation piece too! All artwork has a 30-day, no questions asked, return policy. Plus All transactions are secure and private. Worldwide FAST shipping to your door.