|Chase County, Nebraska|
Chase County courthouse in Imperial
Location in the U.S. state of Nebraska
Nebraska's location in the U.S.
|Named for||Champion S. Chase|
|• Total||897 sq mi (2,323 km2)|
|• Land||894 sq mi (2,315 km2)|
|• Water||3.1 sq mi (8 km2), 0.5%|
|• ( 2010)||3,966|
|• Density||4.4/sq mi (1.7/km2)|
|Time zone||Mountain: UTC−7/ −6|
In the Nebraska license plate system, Chase County is represented by the prefix 72 (it had the 72nd-most vehicles registered in the state when the license plate system was established in 1922).
Chase County was named after Champion S. Chase, who served as mayor of Omaha for seven years and was Nebraska's first Attorney General.
It was once said that, excluding ranch owners, their wives, and their cooks, at the time Chase County was organized it was populated entirely by cowboys. Part of the reason for such a statement may have been the fact that at one time Frenchman Creek and its main branch the Stinking Water Creek were used as watering stops for cattle drives that traveled from Texas to the Union Pacific railhead at Ogallala. These trails are known as the Western or Great Western trails.  
Chase County sits in the region once referred to as the Great American Desert. However, on the broad, fertile plateau, early settlers quickly discovered that Chase County's dark sandy loam soil was excellent for farming.
The railroad came to Chase County in 1892, reaching Wauneta on January 28.  It was built by a division of the Chicago, Burlington and Quincy Railroad. This line left the main line near Culbertson and terminated in Imperial.
- Wauneta Roller Mills (listed 2008) 
- Rural Areas
Chase County is geographically diverse. The spring-fed Frenchman Creek crosses the county from west to southeast. From Enders to Wauneta the path of the creek exposes limestone outcroppings. North of Wauneta is an area of significant loess deposits, including the typical steep-walled canyons. Rolling Sandhills formations are found in the north-central and southwestern areas of the county.
The Pierre Shale of Upper Cretaceous Age is the underlying structure of the region. At Enders Dam this formation is found at a depth of 175 feet (53 m) below the valley floor. The Ogallala Formation of Pliocene Age overlies the Pierre Shale. The Ogallala Formation is composed of fine to course sand, some gravel, calcareous silt, silty sands, silts and clays. Various degrees of calcareous cementation occur, resulting in lenses of varying loose unconsolidated to very firm compact materials at irregular intervals. The Ogallala beds lie almost horizontal and structural irregularities, such as faulting, have been observed in the area. 
The Ogallala Formation is of vital importance to the county and the surrounding areas. The associated Ogallala Aquifer is the primary source of water for the population and livestock, and an important input into agricultural economy of the county.
- Hayes County, Nebraska (east)
- Dundy County, Nebraska (south)
- Yuma County, Colorado (southwest)
- Phillips County, Colorado (west)
- Perkins County, Nebraska (north)
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2013 
As of the census  of 2000, there were 4,068 people, 1,662 households, and 1,163 families residing in the county. The population density was 4 people per square mile (2/km²). There were 1,927 housing units at an average density of 2 per square mile (1/km²). The racial makeup of the county was 97.81% White, 0.17% Black or African American, 0.10% Native American, 0.17% Asian, 0.02% Pacific Islander, 1.47% from other races, and 0.25% from two or more races. 3.42% of the population were Hispanic or Latino of any race. 44.6% were of German, 13.0% American, 12.3% English and 7.1% Irish ancestry according to Census 2000.
There were 1,662 households out of which 30.60% had children under the age of 18 living with them, 62.10% were married couples living together, 5.50% had a female householder with no husband present, and 30.00% were non-families. 27.30% of all households were made up of individuals and 13.80% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.91.
In the county, the population was spread out with 25.20% under the age of 18, 5.90% from 18 to 24, 23.90% from 25 to 44, 24.00% from 45 to 64, and 21.10% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 96.60 males. For every 100 females age 18 and over, there were 94.80 males.
The median income for a household in the county was $32,351, and the median income for a family was $39,225. Males had a median income of $27,554 versus $17,602 for females. The per capita income for the county was $17,490. About 7.90% of families and 9.60% of the population were below the poverty line, including 10.50% of those under age 18 and 9.00% of those age 65 or over.
The economy of Chase County is based on agriculture. More than 30 percent of the county's 576,000 acres (2,330 km2) are irrigated. Another 25 percent are involved in dryland crop operations. The remaining acres are range land. Wheat, corn, edible beans (pintos, kidneys and great northerns), soybeans and sugar beets are the principal crops. Livestock production is equally important in the county's economy.  In 2007 sales of agricultural products exceeded $125 Million, with Corn ($96 Million) and Wheat ($11 Million) being the primary crops. 
The main highway routes crossing Chase County are U.S. Route 6 which crosses east-west and Nebraska Highway 61 which crosses north-south.  The county is served by the Nebraska Kansas & Colorado Railway. NKCR is an operating company of OmniTRAX. This short line operates the branch line which interchanges with the BNSF. This line enters the county near the southeastern corner passing through Wauneta and Enders, terminating at Imperial. 
- Imperial (county seat)
- "State & County QuickFacts". United States Census Bureau. Retrieved September 17, 2013.
- "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
- Fitzpatrick, Lilian Linder (1925). Nebraska Place-Names. Lincoln: University of Nebraska Studies in Language, Literature, and Criticism. p. 35. Retrieved December 14, 2014.
- "Chase County". Nebraska Association of County Officials. Retrieved December 14, 2014.
- Western Trail, The Handbook of Texas
- The Great Western Trail
- Chase County Tourism
- Chase County Tourism
- Nebraska State Historical Society
- Chase County Tourism
- Chase County Tourism
- Nebraska Legislature
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on November 13, 2013. Retrieved December 6, 2014.
- Bureau of Reclamation - Enders Dam Data Archived May 13, 2009, at the Wayback Machine.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved December 6, 2014.
- "Historical Census Browser". University of Virginia Library. Retrieved December 6, 2014.
- "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved December 6, 2014.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved December 6, 2014.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2008-01-31.
- eReference Desk, Chase County, Nebraska
- 2007 Census of Agriculture, USDA, National Agricultural Statistics Service
- Nebraska Highway Logbook
- Nebraska Kansas Colorado Railway Archived May 6, 2009, at the Wayback Machine.