The population was 41,686 at the 2000 census. However, the California Department of Finance estimates that the population had grown to 52,687 as of January 1, 2009.
As of the 2000 census, there were 41,686 people, 13,931 households, and 10,378 families residing in the city. The population density was 3,184.4 people per square mile (1,229.6/km²). There were 14,721 housing units at an average density of 1,124.5/sq mi (434.2/km²). The racial makeup of the city was 64.06% White, 5.01% Black or African American, 1.36% Native American, 2.85% Asian, 0.18% Pacific Islander, 20.80% from other races, and 5.73% from two or more races. 38.66% of the population were Hispanic or Latino of any race.
Foreign-born residents accounted for 13.2% of Hanford's population and 28.3% spoke a language other than English at home.
There were 13,931 households out of which 42.3% had children under the age of 18 living with them, 53.9% were married couples living together, 15.4% had a female householder with no husband present, and 25.5% were non-families. 20.6% of all households were made up of individuals and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.93 and the average family size was 3.39.
In the city the population was spread out with 31.6% under the age of 18, 9.8% from 18 to 24, 29.6% from 25 to 44, 18.6% from 45 to 64, and 10.3% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 95.9 males. For every 100 females age 18 and over, there were 92.3 males.
The Hanford Municipal Airport serves general aviation and has a 5,175 ft (91,577 m) paved runway.
Kings Area Rural Transit (KART) operates regularly scheduled fixed route bus service, vanpool service for commuters and Dial-A-Ride (demand response) services throughout Kings County as well as to Fresno.
Amtrak provides passenger rail service to the San Francisco Bay Area and Sacramento, and service to Southern California by a combination of rail and bus. Freight service is available from both the BNSF Railway and the San Joaquin Valley Railroad.
Highway 43
Highway 198