Rolla, city (1990 pop. 14,090), seat of Phelps co., S central Mo.; inc. 1861. It is a regional center for a livestock and farming area of the Ozarks. Apparel, roof and floor trusses, chemicals, cabinets, and limestone are manufactured and there are wineries nearby. The Univ. of Missouri has a campus in the city, and the U.S. Geological Survey Mid-Continent Mapping Center and the headquarters of the Mark Twain National Forest are also there. Caves and springs abound in the area.
Rolla is a city in Morton County, Kansas, United States. The population was 482 at the 2000 census.


Rolla is located at (37.118293, -101.632391).

According to the United States Census Bureau, the city has a total area of 0.3 square miles (0.9 km²), all of it land.


As of the census of 2000, there were 482 people, 165 households, and 121 families residing in the city. The population density was 1,411.1 people per square mile (547.4/km²). There were 199 housing units at an average density of 582.6/sq mi (226.0/km²). The racial makeup of the city was 81.95% White, 1.87% Native American, 0.41% Asian, 12.45% from other races, and 3.32% from two or more races. Hispanic or Latino of any race were 22.41% of the population.

There were 165 households out of which 41.8% had children under the age of 18 living with them, 63.6% were married couples living together, 6.1% had a female householder with no husband present, and 26.1% were non-families. 24.2% of all households were made up of individuals and 10.9% had someone living alone who was 65 years of age or older. The average household size was 2.92 and the average family size was 3.54.

In the city the population was spread out with 35.7% under the age of 18, 7.1% from 18 to 24, 28.4% from 25 to 44, 17.6% from 45 to 64, and 11.2% who were 65 years of age or older. The median age was 33 years. For every 100 females there were 93.6 males. For every 100 females age 18 and over, there were 105.3 males.

The median income for a household in the city was $38,500, and the median income for a family was $43,750. Males had a median income of $24,886 versus $14,583 for females. The per capita income for the city was $13,211. About 8.8% of families and 10.8% of the population were below the poverty line, including 11.2% of those under age 18 and 5.7% of those age 65 or over.


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