As of the year 2005, the official student enrollment to Louisiana Tech University was approximately 11,611. Adding several thousand personnel employed by the university, the total university population appears to rival the city itself.

As of the censusGR2 of 2000, there were 20,546 people, 7,621 households, and 4,244 families residing in the city. The population density was 438.8/km² (1,136.4/mi²). There were 8,397 housing units at an average density of 179.3/km² (464.5/mi²). The racial makeup of the city was 56.94% White, 38.92% African American, 0.17% Native American, 2.41% Asian, 0.02% Pacific Islander, 0.63% from other races, and 0.90% from two or more races. Hispanic or Latino of any race were 1.29% of the population.

There were 7,621 households out of which 26.7% had children under the age of 18 living with them, 36.0% were married couples living together, 16.3% had a female householder with no husband present, and 44.3% were non-families. 30.8% of all households were made up of individuals and 9.9% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.98.

In the city, the population was spread out with 20.8% under the age of 18, 31.6% from 18 to 24, 21.3% from 25 to 44, 14.9% from 45 to 64, and 11.3% who were 65 years of age or older. The median age was 24 years. For every 100 females there were 92.9 males. For every 100 females age 18 and over, there were 89.7 males.

The median income for a household in the city was $23,001, and the median income for a family was $37,394. Males had a median income of $33,408 versus $20,413 for females. The per capita income for the city was $14,573. About 22.1% of families and 32.1% of the population were below the poverty line, including 34.1% of those under age 18 and 17.6% of those age 65 or over.

Lincoln Parish Demographics

As of the census² of 2000, there were 42,509 people, 15,235 households, and 9,689 families residing in the parish. The population density was 35/km² (90/mi²). There were 17,000 housing units at an average density of 14/km² (36/mi²). The racial makeup of the parish was 57.42% White, 39.84% Black or African American, 0.18% Native American, 1.28% Asian, 0.01% Pacific Islander, 0.52% from other races, and 0.75% from two or more races. 1.16% of the population were Hispanic or Latino of any race.

There were 15,235 households out of which 30.00% had children under the age of 18 living with them, 44.50% were married couples living together, 15.30% had a female householder with no husband present, and 36.40% were non-families. 27.00% 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 2.44 and the average family size was 3.01.

In the parish the population was spread out with 22.10% under the age of 18, 25.70% from 18 to 24, 23.20% from 25 to 44, 17.60% from 45 to 64, and 11.30% who were 65 years of age or older. The median age was 26 years. For every 100 females there were 94.20 males. For every 100 females age 18 and over, there were 90.90 males.

The median income for a household in the parish was $26,977, and the median income for a family was $38,972. Males had a median income of $32,376 versus $20,877 for females. The per capita income for the parish was $14,313. About 18.20% of families and 26.50% of the population were below the poverty line, including 30.10% of those under age 18 and 18.10% of those age 65 or over.