Outdoor Advertising Billboards for Rent in Douglas county, Nebraska

Douglas County is a county located in the U.S. state of Nebraska. It is the state's most populous county, home to over one-fourth of Nebraska's residents. As of 2000, the population was 463,585. Its county seat is Omaha, the state's largest city. It is one of five Nebraska counties in the eight-county Omaha-Council Bluffs Metropolitan Statistical Area.

In the Nebraska license plate system, Douglas County was represented by the prefix "1" (as it had the largest number of vehicles registered in the county when the license plate system was established in 1922). In 2002, the state discontinued the 1922 system in the three most populous counties: Douglas, Sarpy, and Lancaster (Lincoln) counties.

Demographics

Historical populations
Census	Pop.		%±
1860	4,328		—
1870	19,982		361.7%
1880	37,645		88.4%
1890	158,008		319.7%
1900	140,590		−11.0%
1910	168,546		19.9%
1920	204,524		21.3%
1930	232,982		13.9%
1940	247,562		6.3%
1950	281,020		13.5%
1960	343,490		22.2%
1970	389,455		13.4%
1980	397,038		1.9%
1990	416,444		4.9%
2000	463,585		11.3%
Est. 2007	497,416		7.3%
sources:

As of the census of 2000, there were 463,585 people, 182,194 households, and 115,146 families residing in the county. The population density was 1,401 people per square mile (541/km²). There were 192,672 housing units at an average density of 582 per square mile (225/km²). The racial makeup of the county was 80.96% White, 11.50% Black or African American, 0.61% Native American, 1.71% Asian, 0.05% Pacific Islander, 3.40% from other races, and 1.76% from two or more races. 6.67% of the population were Hispanic or Latino of any race. 26.3% were of German, 11.5% Irish and 6.2% English ancestry according to Census 2000.

There were 182,194 households out of which 32.00% had children under the age of 18 living with them, 47.50% were married couples living together, 12.10% had a female householder with no husband present, and 36.80% were non-families. 29.80% of all households were made up of individuals and 8.70% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.12.

In the county the population was spread out with 26.60% under the age of 18, 10.30% from 18 to 24, 31.20% from 25 to 44, 21.00% from 45 to 64, and 11.00% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 95.70 males. For every 100 females age 18 and over, there were 92.90 males.

The median income for a household in the county was $43,209, and the median income for a family was $54,651. Males had a median income of $36,577 versus $27,265 for females. The per capita income for the county was $22,879. About 6.70% of families and 9.80% of the population were below the poverty line, including 13.00% of those under age 18 and 7.20% of those age 65 or over.