Sedgwick County, Colorado

County in Colorado, United States

County in Colorado

Sedgwick County

County

Sedgwick County Courthouse, Julesburg

Location within the U.S. state of Colorado

Colorado's location within the U.S.

Coordinates: 40°53′N 102°21′W﻿ / ﻿40.88°N 102.35°W﻿ / 40.88; -102.35
Country|  United States
State|  Colorado
Founded| April 9, 1889
Named after| John Sedgwick
Seat| Julesburg
Largest town| Julesburg
Area

• Total

| 549 sq mi (1,420 km2)
• Land| 548 sq mi (1,420 km2)
• Water| 1.4 sq mi (4 km2)  0.2%
Population

(2020)

• Total

| 2,404

• Estimate

(2024)

| 2,257
• Density| 4.4/sq mi (1.7/km2)
Time zone| UTC−7 (Mountain)
• Summer (DST)| UTC−6 (MDT)
Congressional district| 4th
Website| sedgwickcounty.colorado.gov

Sedgwick County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 2,404.[1] The county seat is Julesburg.[2] The county was named for Fort Sedgwick, a military post along the Platte Trail, which was named for General John Sedgwick. It is located at the state border with Nebraska.

## History

[edit]

Sedgwick County was named after John Sedgwick, who was a major general in the Union Army during the American Civil War.

## Geography

[edit]

According to the U.S. Census Bureau, the county has a total area of 549 square miles (1,420 km2), of which 548 square miles (1,420 km2) is land and 1.4 square miles (3.6 km2) (0.2%) is water.[3]

### Adjacent counties

[edit]

* Deuel County, Nebraska – north
* Perkins County, Nebraska – east
* Phillips County – south
* Logan County – west
* Cheyenne County, Nebraska – northwest

### Major highways

[edit]

* Interstate 76
* U.S. Highway 138
* U.S. Highway 385
* State Highway 11
* State Highway 23
* State Highway 59

### Trails and byways

[edit]

* American Discovery Trail
* First transcontinental railroad
* Pony Express National Historic Trail
* South Platte River Trail Scenic and Historic Byway
* South Platte Trail

Upper Crossing of the California Trail

## Demographics

[edit]

Historical population Census| Pop.| Note| %±

|
|
|

1890| 1,293| | —
1900| 971| | −24.9%
1910| 3,061| | 215.2%
1920| 4,207| | 37.4%
1930| 5,580| | 32.6%
1940| 5,294| | −5.1%
1950| 5,095| | −3.8%
1960| 4,242| | −16.7%
1970| 3,405| | −19.7%
1980| 3,266| | −4.1%
1990| 2,690| | −17.6%
2000| 2,747| | 2.1%
2010| 2,379| | −13.4%
2020| 2,404| | 1.1%
2024 (est.)| 2,257| [4]| −6.1%
U.S. Decennial Census[5]
1790-1960[6] 1900–1990[7]
1990-2000[8] 2010–2020[1]

At the 2000 census there were 2,747 people in 1,165 households, including 802 families, in the county. The population density was 5 people per square mile (1.9 people/km2). There were 1,387 housing units at an average density of 2 units per square mile (0.77 units/km2). The racial makeup of the county was 90.50% White, 0.51% Black or African American, 0.15% Native American, 0.76% Asian, 0.07% Pacific Islander, 5.97% from other races, and 2.04% from two or more races. 11.43% of the population were Hispanic or Latino of any race.[9] Of the 1,165 households 26.40% had children under the age of 18 living with them, 59.10% were married couples living together, 6.60% had a female householder with no husband present, and 31.10% were non-families. 29.40% of households were one person and 13.60% were one person aged 65 or older. The average household size was 2.31 and the average family size was 2.83.

The age distribution was 22.80% under the age of 18, 6.60% from 18 to 24, 23.50% from 25 to 44, 25.00% from 45 to 64, and 22.10% 65 or older. The median age was 43 years. For every 100 females there were 100.10 males. For every 100 females age 18 and over, there were 97.20 males.

The median household income was $28,278 and the median family income was $33,953. Males had a median income of $25,463 versus $16,392 for females. The per capita income for the county was $16,125. About 7.80% of families and 10.00% of the population were below the poverty line, including 13.70% of those under age 18 and 4.20% of those age 65 or over.

## Politics

[edit]

Sedgwick County has been strongly Republican for most of its history. It was the only Colorado county to vote for Charles Evans Hughes in 1916 and one of only two carried by Theodore Roosevelt in 1912, while only three Democratic presidential candidates – William Jennings Bryan in the “free silver” 1896 election plus Franklin D. Roosevelt and Lyndon Johnson in the 1932, 1936 and 1964 landslide wins – have ever carried the county, which has voted for the same candidate as the state of South Dakota in every election since its formation.

United States presidential election results for Sedgwick County, Colorado[10] Year  | Republican | Democratic | Third party(ies)

|
|
|

No.  | % | No.  | % | No.  | %
2024 | 1,048  | 77.17% | 283  | 20.84%  | 27  | 1.99%
2020 | 1,121  | 77.52% | 301  | 20.82%  | 24  | 1.66%
2016 | 1,015  | 74.41% | 267  | 19.57%  | 82  | 6.01%
2012 | 881  | 65.84% | 419  | 31.32%  | 38  | 2.84%
2008 | 857  | 63.43% | 468  | 34.64%  | 26  | 1.92%
2004 | 971  | 71.40% | 374  | 27.50%  | 15  | 1.10%
2000 | 877  | 67.31% | 384  | 29.47%  | 42  | 3.22%
1996 | 715  | 52.69% | 519  | 38.25%  | 123  | 9.06%
1992 | 447  | 39.01% | 397  | 34.64%  | 302  | 26.35%
1988 | 921  | 59.61% | 611  | 39.55%  | 13  | 0.84%
1984 | 1,146  | 72.39% | 429  | 27.10%  | 8  | 0.51%
1980 | 1,151  | 67.39% | 438  | 25.64%  | 119  | 6.97%
1976 | 902  | 53.06% | 773  | 45.47%  | 25  | 1.47%
1972 | 1,129  | 67.85% | 485  | 29.15%  | 50  | 3.00%
1968 | 1,007  | 60.92% | 546  | 33.03%  | 100  | 6.05%
1964 | 895  | 48.67%  | 942  | 51.22% | 2  | 0.11%
1960 | 1,230  | 61.41% | 769  | 38.39%  | 4  | 0.20%
1956 | 1,334  | 63.55% | 760  | 36.21%  | 5  | 0.24%
1952 | 1,528  | 68.74% | 686  | 30.86%  | 9  | 0.40%
1948 | 1,020  | 54.63% | 834  | 44.67%  | 13  | 0.70%
1944 | 1,228  | 68.26% | 568  | 31.57%  | 3  | 0.17%
1940 | 1,448  | 59.86% | 959  | 39.64%  | 12  | 0.50%
1936 | 977  | 40.57%  | 1,358  | 56.40% | 73  | 3.03%
1932 | 884  | 39.10%  | 1,288  | 56.97% | 89  | 3.94%
1928 | 1,247  | 67.51% | 580  | 31.40%  | 20  | 1.08%
1924 | 779  | 51.97% | 372  | 24.82%  | 348  | 23.22%
1920 | 819  | 65.31% | 372  | 29.67%  | 63  | 5.02%
1916 | 529  | 46.86% | 519  | 45.97%  | 81  | 7.17%
1912 | 328  | 29.68%  | 338  | 30.59%  | 439  | 39.73%
1908 | 544  | 64.30% | 278  | 32.86%  | 24  | 2.84%
1904 | 347  | 69.82% | 131  | 26.36%  | 19  | 3.82%
1900 | 256  | 58.18% | 163  | 37.05%  | 21  | 4.77%
1896 | 130  | 36.62%  | 216  | 60.85% | 9  | 2.54%
1892 | 198  | 35.29%  | 0  | 0.00%  | 363  | 64.71%

## Communities

[edit]

### Towns

[edit]

* Julesburg
* Ovid
* Sedgwick

## See also

[edit]

* Government portal
* History portal
* United States portal
* Colorado portal

* Bibliography of Colorado
* Geography of Colorado
* History of Colorado
* National Register of Historic Places listings in Sedgwick County, Colorado
* Index of Colorado-related articles
* List of Colorado-related lists
* List of counties in Colorado
* Outline of Colorado

## Notes

[edit]

## References

[edit]

1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved September 5, 2021.
2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
3. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
4. ^ "County Population Totals and Components of Change: 2020-2024". United States Census Bureau. Retrieved June 3, 2025.
5. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved June 11, 2014.
6. ^ "Historical Census Browser". University of Virginia Library. Retrieved June 11, 2014.
7. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved June 11, 2014.
8. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Archived (PDF) from the original on March 27, 2010. Retrieved June 11, 2014.
9. ^ "U.S. Census website". United States Census Bureau. Retrieved May 14, 2011.
10. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved May 26, 2017.

## External links

[edit]

* Official website
* Colorado County Evolution by Don Stanwyck
* Colorado Historical Society

* v
* t
* e

Places adjacent to Sedgwick County, Colorado

| Cheyenne County, Nebraska | Deuel County, Nebraska |

|
|

|  |
Logan County |

Sedgwick County, Colorado

| Perkins County, Nebraska
|  |
| Phillips County |

* v
* t
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Municipalities and communities of Sedgwick County, Colorado, United States

County seat: Julesburg

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* Ovid
* Sedgwick

Map of Colorado highlighting Sedgwick County

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40°53′N 102°21′W﻿ / ﻿40.88°N 102.35°W﻿ / 40.88; -102.35
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