Weld County, Colorado

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Weld County, Colorado
Greeley, Colorado Courthouse.JPG
Weld County Courthouse
Map of Colorado highlighting Weld County
Location in the state of Colorado
Map of the United States highlighting Colorado
Colorado's location in the U.S.
Founded November 1, 1861
Seat Greeley
Largest city Greeley
 • Total 4,021.56 sq mi (10,416 km2)
 • Land 3,992.45 sq mi (10,340 km2)
 • Water 29.11 sq mi (75 km2), 0.72%
 • (2010) 252,825
 • Density 47/sq mi (18/km²)
Congressional district 4th
Time zone Mountain: UTC-7/-6
Website www.co.weld.co.us
Ninth most populous Colorado county

Weld County is the third most extensive and the ninth most populous of the 64 counties of the State of Colorado of the United States. The United States Census Bureau estimates that the county population was 252,825 in 2010 census, a 39.7% increase since 2000 census.[1] The United States Office of Management and Budget (OMB) has designated Weld County as the Greeley, CO Metropolitan Statistical Area,[2] a component of the Denver-Aurora-Boulder, CO Combined Statistical Area.[3]


Weld County Courthouse from Lincoln Park.

On May 30, 1854, the Kansas-Nebraska Act created the Nebraska Territory and the Kansas Territory, divided by the Parallel 40° North (Baseline Road or County Line Road or Weld County Road 2 in the future Weld County). Present-day Weld County, Colorado, lay in the southwestern portion of the Nebraska Territory, bordering the Kansas Territory.

In July 1858, gold was discovered along the South Platte River in Arapahoe County, Kansas Territory. This discovery precipitated the Pike's Peak Gold Rush. Many residents of the mining region felt disconnected from the remote territorial governments of Kansas and Nebraska, so they voted to form their own Territory of Jefferson on October 24, 1859. The following month, the Jefferson Territorial Legislature organized 12 counties for the new territory, including St. Vrain County. St. Vrain County was named in honor of Ceran de Hault de Lassus de St. Vrain, the French trader who established the first trading post on the upper South Platte River. St. Vrain County encompassed much of what is today Weld County.

The Jefferson Territory never received federal sanction, but on February 28, 1861, U.S. President James Buchanan signed an act organizing the Territory of Colorado.[4] On November 1, 1861, the Colorado General Assembly organized 17 counties, including Weld County, for the new Colorado Territory. Weld County was named for Lewis Ledyard Weld, a lawyer and territorial secretary. He died while serving in the Union Army during the Civil War.[5] Until February 9, 1887, Weld County's boundaries included the area now comprising Weld County, Washington County, Logan County, Morgan County, Yuma County, Phillips County, and Sedgwick County.

Weld County was thrust into the media spotlight on the evening of November 1, 1955, when United Airlines Flight 629, a Douglas DC-6B airliner flying from Denver to Portland, Oregon, exploded in midair and crashed, killing all 44 persons on board the plane and scattering bodies, wreckage and debris over a six-square-mile area of the county. The subsequent investigation of the accident revealed that Denver resident John Gilbert Graham had secretly placed a time bomb composed of 25 sticks of dynamite in a suitcase belonging to his mother, who was a passenger on the airplane. Graham was tried and convicted of the crime, and executed in 1957.

In northeastern Weld County, Minuteman III missile silo "N-8",[6] one of the many unmanned silos there, was the target of symbolic vandalism by Catholic peace activists in 2002.[7][8]

In 2013, conservative Weld County commissioners began a campaign to secede from the State of Colorado and a state ballot measure regarding the issue was put on the November 2013 ballot. The legality of this initiative has been questioned by local attorneys.[9] On Nov 5th, 2013, 6 out of 11 Colorado counties voted no for secession, including Weld County. Elbert, Lincoln, Logan, Moffat, Sedgwick, and Weld counties voted no, while Cheyenne, Kit, Phillips, Washington, and Yuma counties voted yes. "Weld County voters said this is an option we shouldn't pursue and we won't pursue it," said Weld County Commissioner Sean Conway, "But we will continue to look at the problems of the urban and rural divide in this state."[10]


Cropfields in western Weld County.

Weld County lies within the relatively flat eastern portion of Colorado; the northeastern portions of the county contain the extensive Pawnee National Grassland and the Pawnee Buttes, which jut 250 feet (76 m) above the surrounding terrain. Along the western border some low hills betray the presence of the foothills of the Rocky Mountains further west.

The county is served by two interstate highways: I-25 (US 87) runs through the southwestern corner and I-76 from the south central edge northeastward to the Morgan county border. Other major roads include US 85 and US 34, which intersect near Greeley, and State Highway 14, which runs through Ault.

According to the 2000 census, the county has a total area of 4,021.56 square miles (10,415.8 km2), of which 3,992.45 square miles (10,340.4 km2) (or 99.28%) is land and 29.11 square miles (75.4 km2) (or 0.72%) is water.[11]

Note: All figures for area and population given above were as of the 2000 census. The area has been reduced since November 15, 2001 with the creation of the new Broomfield County from part of Weld County and parts of Adams, Boulder, and Jefferson counties.

Adjacent counties[edit]


Historical population
Census Pop.
1870 1,636
1880 5,646 245.1%
1890 11,736 107.9%
1900 16,808 43.2%
1910 39,177 133.1%
1920 54,059 38.0%
1930 65,097 20.4%
1940 63,747 −2.1%
1950 67,504 5.9%
1960 72,344 7.2%
1970 89,297 23.4%
1980 123,438 38.2%
1990 131,821 6.8%
2000 180,936 37.3%
2010 252,825 39.7%
Est. 2012 263,691 4.3%
U.S. Decennial Census[12]
2012 Estimate[13]

As of the census[14] of 2000, there were 180,936 people, 63,247 households, and 45,221 families residing in the county. The population density was 45 people per square mile (18/km²). There were 66,194 housing units at an average density of 17 per square mile (6/km²). The racial makeup of the county was 81.71% White, 0.56% Black or African American, 0.87% Native American, 0.83% Asian, 0.08% Pacific Islander, 13.29% from other races, and 2.65% from two or more races. 27.05% of the population were Hispanic or Latino of any race.

There were 63,247 households out of which 37.20% had children under the age of 18 living with them, 57.60% were married couples living together, 9.40% had a female householder with no husband present, and 28.50% were non-families. 21.00% of all households were made up of individuals and 6.90% had someone living alone who was 65 years of age or older. The average household size was 2.78 and the average family size was 3.25.

In the county the population was spread out with 28.20% under the age of 18, 13.20% from 18 to 24, 29.70% from 25 to 44, 20.00% from 45 to 64, and 9.00% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 100.60 males. For every 100 females age 18 and over, there were 98.00 males.

The median income for a household in the county was $42,321, and the median income for a family was $49,569. Males had a median income of $35,037 versus $25,757 for females. The per capita income for the county was $18,957. About 8.00% of families and 12.50% of the population were below the poverty line, including 14.60% of those under age 18 and 8.50% of those age 65 or over.

Cities and Towns[edit]



A grain elevator in Nunn.


Unincorporated communities[edit]

Rock formation near the Pawnee Buttes.

‡ means a populated place has portions in an adjacent county or counties


Weld County is Colorado's leading producer of cattle, grain and sugar beets, and is the richest agricultural county in the United States east of the Rocky Mountains, and the fourth richest overall nationally. It is also becoming more important as a milk producing county, with close to half of the state's cattle.[15] [3] Weld County is also an important area of oil and natural gas production in the Denver-Julesburg Basin.

National grassland[edit]

Sunrise over the Pawnee National Grassland in northeastern Weld County.

State museum and park[edit]

Historic trail[edit]

Recreational trails[edit]

Scenic byway[edit]

See also[edit]


  1. ^ United States Census Bureau. "2010 Census Data". United States Census Bureau. Retrieved 5 February 2012. 
  2. ^ "OMB Bulletin No. 10-02: Update of Statistical Area Definitions and Guidance on Their Uses". United States Office of Management and Budget. December 1, 2009. Retrieved April 19, 2012. 
  3. ^ See the Colorado census statistical areas.
  4. ^ "An Act to provide a temporary Government for the Territory of Colorado" (PDF). Thirty-sixth United States Congress. 1861-02-28. Retrieved 2007-11-26. 
  5. ^ "Weld County, Colorado County Information". ePodunk. Retrieved November 5, 2013. 
  6. ^ "Warren AFB Minuteman Missile Site Coordinates". Asuwlink.uwyo.edu. Retrieved November 5, 2013. 
  7. ^ [1][dead link]
  8. ^ [2][dead link]
  9. ^ Romano, Analisa (October 9, 2013). "Greeley Attorneys Question Legality Of Weld Commissioners Advocating For 51st State". The Greeley Tribune (via Huffington Post). Retrieved 11 October 2013. 
  10. ^ Whaley, Monte (05 Nov 2013). "51st state question answered "no" in 6 of 11 counties contemplating secession". www.denverpost.com (The Denver Post). Retrieved 6 March 2014. 
  11. ^ "Census 2000 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-02-13. 
  12. ^ "U.S. Decennial Census". Census.gov. Retrieved July 16, 2013. 
  13. ^ "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2012". Census.gov. Retrieved July 16, 2013. 
  14. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 
  15. ^ "Weld County: About Weld". Co.weld.co.us. Retrieved November 5, 2013. 

External links[edit]

Coordinates: 40°32′N 104°24′W / 40.54°N 104.40°W / 40.54; -104.40