Lodi is best known as a center of wine production (the "Zinfandel Capital of the World"), although its vintages have traditionally been less prestigious than those of Sonoma and Napa counties. However, in recent years, the Lodi Appellation has become increasingly respected for its Zinfandel wine and other eclectic varietals. Nearby Woodbridge is the home of the well known winery, Woodbridge by Robert Mondavi. Mondavi grew up in Lodi, and Mondavi Winery is considered one of the most influential in the American wine industry.
Lodi gained international attention in 2005 when local residents Hamid and Umer Hayat were arrested and charged in the first terrorism trial in the state of California.
As of the 2000 census, 68,000 people or 14,339 families resided in the city, in 20,692 households. The population density was 4,657.9 people per square mile (1,798.0/km²). There were 21,378 housing units at an average density of 1,747.0/sq mi (674.4/km²). The racial makeup of the city was 74.42% White, 0.60% African American, 0.87% Native American, 5.05% Asian, 0.12% Pacific Islander, 13.99% from other races, and 4.95% from two or more races. 27.13% of the population were Hispanic or Latino of any race.
Of the 20,692 households counted in the 2000 census, 35.8% included children under the age of 18, 51.7% were married couples living together, 12.2% had a female householder with no husband present, and 30.7% were non-families. 25.4% of all households were made up of individuals and 11.2% had someone living alone who were 65 years of age or older. The average household size was 2.71 and the average family size was 3.25.
In the city, the population was spread out with 28.2% under the age of 18, 9.6% from 18 to 24, 28.1% from 25 to 44, 19.8% from 45 to 64, and 14.3% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 95.3 males. For every 100 females age 18 and over, there were 91.8 males.
The median income for a household in the city was $39,570, and the median income for a family was $47,020. Males had a median income of $37,738 versus $27,073 for females. The per capita income for the city was $18,719. 16.7% of the population and 12.3% of families are below the poverty line. Out of the total population, 23.3% of those under the age of 18 and 9.6% of those 65 and older were living below the poverty line.