As of the census of 2000, there are 44,174 people, 18,639 households, and 7,697 families residing in the city. The population density is 4,144.5 people per square mile (1,600.0/km²). There are 19,306 housing units at an average density of 1,811.3/sq mi (699.3/km²). The racial makeup of the city is 84.11% White, 1.46% African American, 0.65% Native American, 5.28% Asian, 0.13% Pacific Islander, 4.82% from other races, and 3.55% from two or more races. 11.65% of the population are Hispanic or Latino of any race.
There are 18,639 households out of which 17.7% have children under the age of 18 living with them, 31.3% are married couples living together, 7.2% have a female householder with no husband present, and 58.7% are non-families. 32.7% of all households are made up of individuals and 9.5% have someone living alone who is 65 years of age or older. The average household size is 2.27 and the average family size is 2.86.
In the city the population is spread out with 14.2% under the age of 18, 33.6% from 18 to 24, 23.7% from 25 to 44, 16.5% from 45 to 64, and 12.1% who are 65 years of age or older. The median age is 26 years. For every 100 females there are 105.8 males. For every 100 females age 18 and over, there are 106.3 males.
The median income for a household in the city is $31,926, and the median income for a family is $56,319. Males have a median income of $41,915 versus $27,407 for females. The per capita income for the city is $20,386. 26.6% of the population and 7.1% of families are below the poverty line. Out of the total population, 9.3% of those under the age of 18 and 4.6% of those 65 and older are living below the poverty line.
The city is home to San Luis Obispo County Regional Airport which offers private and commercial air service to several major cities. Amtrak provides daily rail transport service here as the terminus of the Pacific Surfliner line and a stop on the Coast Starlight line. Greyhound also maintains a bus terminal in San Luis Obispo.
Public transit includes the city-wide SLO Transit bus lines as well as the county-wide SLO Regional Transit system. Rideshare encourages the use of the local public transit, as well as carpooling and cycling. Riders for the SLO Transit system are now able to plan their trips using Google Transit. [2]
Bicycling is increasing as a mode of transportation. The Bill Roalman (Morro Street) Bicycle Boulevard gives priority to bicycle traffic while a special bicycle traffic signal (one of only a handfull in the United States) allows bicyclists their own phase in traffic flow. The SLO County Bicycle Coalition offers a free bicycle valet service during the weekly Farmers' Market. In 2007, the city was designated as a Bicycle Friendly Community at the Silver level by the League of American Bicyclists.
The city provides parking in three multistory parking structures downtown [3]. Street parking downtown is metered. The city's innovative Racks with Plaques program has increased bike racks in the downtown area and has cut down on parking congestion.