Livingston County is part of the Rochester, NY Metropolitan Statistical Area.
As of the census of 2000, there were 64,328 people, 22,150 households, and 15,349 families residing in the county. The population density was 102 people per square mile (39/km²). There were 24,023 housing units at an average density of 38 per square mile (15/km²). The racial makeup of the county was 94.04% White, 3.01% African American, 0.27% Native American, 0.76% Asian, 0.03% Pacific Islander, 0.85% from other races, and 1.04% from two or more races. Hispanic or Latino of any race were 2.27% of the population. 22.5% were of German, 17.7% Irish, 14.3% Italian, 12.8% English and 7.0% American ancestry according to Census 2000. 95.8% spoke English and 2.0% Spanish as their first language.
There were 22,150 households out of which 34.00% had children under the age of 18 living with them, 54.80% were married couples living together, 10.00% had a female householder with no husband present, and 30.70% were non-families. 23.10% of all households were made up of individuals and 9.40% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.05.
In the county the population was spread out with 23.40% under the age of 18, 14.20% from 18 to 24, 28.90% from 25 to 44, 22.10% from 45 to 64, and 11.40% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 100.70 males. For every 100 females age 18 and over, there were 99.00 males.
The median income for a household in the county was $42,066, and the median income for a family was $50,513. Males had a median income of $36,599 versus $25,228 for females. The per capita income for the county was $18,062. About 5.80% of families and 10.40% of the population were below the poverty line, including 9.70% of those under age 18 and 6.50% of those age 65 or over.