On November 7, 1861, the government decided to build a university in Boulder. The legislature decided that the university would be run by the state. The first building was built in 1875. The cornerstone for the Old Main Building was laid on September 20, 1875. The university was officially opened on September 5, 1877.[12]
The 2020 United States Census said there are 108,250 people living in the City of Boulder. These people make up 43,565 households. The population density was 4,111.7 people per square mile (1,587.5 people/km²). According to the census, the people living in Boulder are 78.8% White, 1.3% black or African-American, 0.6% Native American, 6.4% Asian, 0.1% Pacific Islander, 4.7% of another race, and 8.1% of two or more races. 10.6% of the population are Hispanic or Latino of any race.[9]
Boulder is in Boulder Valley. This is a place where the Rocky Mountains meet the Great Plains. To the West of the city are some rock formations called the Flatirons. These are large flat pieces of stone that are tilted up on the foothills. The Flatirons are famous as a symbol of Boulder.
Boulder Creekflows through the City. Boulder Creek was named a long time before the city was built. It was named after the big granite boulders that have fallen into the creek over the years. Historians think that Boulder was named after Boulder Creek. The water in Boulder Creek comes from melting mountainsnow and small rivers West of the city. Boulder Creek is a tributary of the South Platte River.
Boulder covers 27.4 square miles (71 km2) according to the U.S. Census Bureau. This includes 26.3 square miles (68 km2) of land and 1.0 square mile (3 km2) (3.8%) of water.
Autumn in Boulder brings many sunny daysSnowfall is common in Boulder throughout the winter
Boulder has a dry climate. It has many sunny or mostly sunny days every year. According to the Köppen climate classification, the city's climate is "semi-arid" (Köppen BSk).[18] Winters are cool, but sometimes can get very cold. During the winter, the high temperature is usually in the mid- to upper- 40s°F (7–9 °C). The low temperature in winter can be below −10 °F (−23 °C) on a few nights. Usually it does not stay below 0 °F (−18 °C) for many days at a time.
Even though it is cold in the winter, Boulder does not get as much snow as the mountains. This is because of something called orographic lift. This means that the mountains in the west dry out the air as it passes over the Front Range. By the time the air gets to Boulder, most of the water and snow has been removed. Sometimes there are heavy snow storms, but not too often. The average amount of snow in Boulder is 85 inches (220 cm) per season, total. Usually only a few inches fall at a time. Because Boulder is so high up, the sun is very strong and hot, so the snow melts quickly. Sometimes Chinook Winds will make the temperature go up quickly and have the snow melt even faster.
Summer in Boulder is hot and dry. Usually there are 27 days during the summer that reach 90 °F (32 °C) or above. It is much cooler at night because of how high up the city is. The hottest temperature ever was on June 23, 1954 and July 11, 1954. On those days it was 104 °F (40 °C). The coldest temperature was in February 1989 and December 1990, when it was −24 °F (−31 °C).
Boulder is very liberal and very Democratic. As of April 2012[update], registered voters in Boulder County were 41% Democrat, 20% Republican, 1% other parties, and 38% unaffiliated (not any specific party.)[21] Boulder County includes the conservative suburbs of Boulder. Boulder is sometimes called the "People's Republic of Boulder" or "25 square miles surrounded by reality." This is a lot like nicknames given to other liberal cities that have more conservative areas surrounding them, like Columbia, Missouri; Madison, Wisconsin; and Austin, Texas.
Boulder was the first city in Colorado to pass a law that made it illegal to discriminate against people because of their sexual orientation. This law was passed by the Boulder City Council in 1974. The law was repealed (cancelled) by the voters that same year. In 1975, Boulder became the second city to ever grant a same-sex marriage license. The license was given by Boulder County Clerk Clela Rorex. Soon after a law was passed that said that marriage licenses could not be given to people of the same gender.[22] In 1987, the people of Boulder voted again to make it illegal to discriminate against people because of their sexual orientation. This was passed by popular vote. Boulder became the first city in the United States that had this kind of a law that was passed by a direct vote of the people.
There are several landmarks in Boulder in honor of the sister cities. The Sister City Plaza was dedicated in May 17, 2007. It is on the east lawn of Boulder's Municipal Building. The plaza was built in honor of Boulder's relationships with its sister cities.[24]
↑"Brief History of Colorado". Archived from the original on March 7, 2008. Retrieved November 11, 2012. {{cite web}}: More than one of |archivedate= and |archive-date= specified (help); More than one of |archiveurl= and |archive-url= specified (help)
↑Moffatt, Riley. Population History of Western U.S. Cities & Towns, 1850–1990. Lanham: Scarecrow, 1996, 67.
↑"Contact." Sirna Therapeutics. December 8, 2004. Retrieved March 3, 2012. "2950 Wilderness Place Boulder, CO 80301"
↑"Voter Registration Statistics". Boulder County. Archived from the original on 2012-07-21. Retrieved 2012-04-14. {{cite web}}: More than one of |archivedate= and |archive-date= specified (help); More than one of |archiveurl= and |archive-url= specified (help)
