As of the census of 2000, 750,097 people, 286,098 households, and 197,693 families resided in the county. The population density was 1,553 people per square mile (599/km2). The 297,434 housing units averaged 238 units/km2 (616 units/sq mi). The racial makeup of the county was 86.46% White, 7.46% Black or African American, 0.11% Native American, 4.02% Asian, 0.03% Pacific Islander, 0.75% from other races, and 1.16% from two or more races. About 2.04% of the population were Hispanic or Latino of any race, 17.5% were of German, 16.7% Irish, 14.3% Italian, 6.5% English, and 5.0% Polish ancestry according to 2000 United States Census. Around 90.5% spoke English, 2.0% Spanish, 1.1% Korean, and 1.0% Italian as their first language. Historically, much of western Montgomery County is part of the Pennsylvania Dutch Country, with a great many descendants of German-speaking settlers from the 18th century.