Jackson County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 1,379, and it was the fourth least populated in the state. The county is named after the United States President Andrew Jackson. The county seat and only municipality in the county is Walden.

Most of Jackson County is a high relatively broad intermontane basin known as North Park, which covers 1,613 square miles (4,180 km). This basin opens north into Wyoming and is rimmed on the west by the Park Range and Sierra Madre Range, on the south by the Rabbit Ears Range and the Never Summer Mountains, and on the east by the Medicine Bow Mountains. Elevations range from 7,800 to 12,953 feet (3,948 m) above sea level and is home to the head waters of the North Platte River. The term park is derived from parc, the French word for game preserve. At one time North Park was filled with herds of deer, antelope and buffalo. There were so many buffalo in the area the Ute Tribe gave North Park the name "Bull Pen." Now deer, elk, and cattle vie for the same area.

In November 1861, Colorado set up 17 counties for the state, including Larimer County. This was where Jackson County would be carved out of in 1909. Before then, both Grand and Larimer Counties claimed the North Park area. In the beginning, no one paid much attention to North Park because it was hunting grounds of the Ute and Arapaho Indians. They fiercely defended these lands and the white settlers were often afraid to venture in. When valuable minerals were discovered in North Park, Grand County claimed it as part of their county because they wanted the revenue it would provide. The residents didn't care much because the county seat for Grand County was closer than the one in Larimer County, and all official business needed to be done at the county seat. But Larimer also claimed this county and it was contested all the way to the Colorado Supreme Court. In 1886 the court decided in favor of Larimer. This did not make the North Park residents very happy and they pushed for their own county until Jackson was formed.

According to the U.S. Census Bureau, the county has a total area of 1,621 square miles (4,200 km), of which 1,614 square miles (4,180 km) is land and 7.2 square miles (19 km) (0.9%) is water.

Jackson County contains the 71,000-acre (290 km) Colorado State Forest.

• Albany County, Wyoming - northeast
• Larimer County - east
• Grand County - south
• Routt County - west
• Carbon County, Wyoming - northwest

• U.S. Highway 40
• State Highway 14
• State Highway 125
• State Highway 127

Jackson County Airport

Jackson County Airport Info

Bustang's Outrider Service to Muddy Pass

OATS (Older Americans Transport Service)

Historical population

Census	Pop.	Note	%±
1910	1,013		—
1920	1,340		32.3%
1930	1,386		3.4%
1940	1,798		29.7%
1950	1,976		9.9%
1960	1,758		−11.0%
1970	1,811		3.0%
1980	1,863		2.9%
1990	1,605		−13.8%
2000	1,577		−1.7%
2010	1,394		−11.6%
2020	1,379		−1.1%
2023 (est.)	1,309		−5.1%
U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2020

As of the census of 2000, there were 1,577 people, 661 households, and 442 families living in the county. The population density was 1 person per square mile (0.39 person/km). There were 1,145 housing units at an average density of 1 per square mile (0.39/km). The racial makeup of the county was 96.20% White, 0.25% Black or African American, 0.76% Native American, 0.06% Asian, 1.46% from other races, and 1.27% from two or more races. 6.53% of the population were Hispanic or Latino of any race.

There were 661 households, out of which 29.20% had children under the age of 18 living with them, 54.90% were married couples living together, 7.90% had a female householder with no husband present, and 33.00% were non-families. 28.40% of all households were made up of individuals, and 10.10% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.91.

In the county, the population was spread out, with 25.60% under the age of 18, 5.40% from 18 to 24, 26.90% from 25 to 44, 29.10% from 45 to 64, and 13.10% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 101.40 males. For every 100 females age 18 and over, there were 107.80 males.

The median income for a household in the county was $31,821, and the median income for a family was $37,361. Males had a median income of $26,250 versus $18,417 for females. The per capita income for the county was $17,826. About 10.30% of families and 14.00% of the population were below the poverty line, including 22.50% of those under age 18 and 9.00% of those age 65 or over.

United States presidential election results for Jackson County, Colorado

Year	Republican		Democratic		Third party(ies)
	No.	%	No.	%	No.	%
2024	634	76.02%	173	20.74%	27	3.24%
2020	681	77.74%	175	19.98%	20	2.28%
2016	629	73.05%	171	19.86%	61	7.08%
2012	600	70.75%	216	25.47%	32	3.77%
2008	624	68.27%	277	30.31%	13	1.42%
2004	710	76.02%	210	22.48%	14	1.50%
2000	682	73.73%	173	18.70%	70	7.57%
1996	486	58.34%	222	26.65%	125	15.01%
1992	422	43.69%	216	22.36%	328	33.95%
1988	584	65.54%	294	33.00%	13	1.46%
1984	722	78.22%	191	20.69%	10	1.08%
1980	673	63.55%	283	26.72%	103	9.73%
1976	455	60.83%	279	37.30%	14	1.87%
1972	623	76.72%	178	21.92%	11	1.35%
1968	474	67.52%	177	25.21%	51	7.26%
1964	354	47.77%	384	51.82%	3	0.40%
1960	504	58.27%	360	41.62%	1	0.12%
1956	594	66.59%	297	33.30%	1	0.11%
1952	579	65.35%	305	34.42%	2	0.23%
1948	327	52.91%	291	47.09%	0	0.00%
1944	463	64.76%	252	35.24%	0	0.00%
1940	526	59.23%	357	40.20%	5	0.56%
1936	419	47.29%	433	48.87%	34	3.84%
1932	390	47.45%	415	50.49%	17	2.07%
1928	401	60.21%	249	37.39%	16	2.40%
1924	394	67.35%	111	18.97%	80	13.68%
1920	402	76.28%	113	21.44%	12	2.28%
1916	157	31.59%	331	66.60%	9	1.81%
1912	218	42.75%	242	47.45%	50	9.80%

• Colorado State Forest
• State Forest State Park

• Arapaho National Wildlife Refuge

• Routt National Forest
• Mount Zirkel Wilderness
• Never Summer Wilderness
• Platte River Wilderness

• Continental Divide National Scenic Trail

• Great Parks Bicycle Route
• TransAmerica Trail Bicycle Route

• Cache la Poudre-North Park Scenic Byway

• Walden

• Coalmont
• Cowdrey
• Gould
• Rand

• Pearl

• Bibliography of Colorado
• Geography of Colorado
• History of Colorado
  • North County, Jefferson Territory
  • National Register of Historic Places listings in Jackson County, Colorado
• Index of Colorado-related articles
• List of Colorado-related lists
  • List of counties in Colorado
• Outline of Colorado

• Jackson County Government Website
• Colorado County Evolution by Don Stanwyck
• Colorado Historical Society

40°40′N 106°20′W / 40.66°N 106.34°W / 40.66; -106.34