San Juan County, Colorado

San Juan County
County
The San Juan County Courthouse in Silverton
Location within the U.S. state of Colorado
Colorado's location within the U.S.
Coordinates: 37°46′N 107°40′W / 37.77°N 107.67°W / 37.77; -107.67
Country	United States
State	Colorado
Founded	January 31, 1876
Named for	San Juan River
Seat	Silverton
Largest town	Silverton
Area
• Total	388 sq mi (1,000 km2)
• Land	387 sq mi (1,000 km2)
• Water	0.8 sq mi (2 km2)  0.2%
Population  (2020)
• Total	705
• Density	1.8/sq mi (0.7/km2)
Time zone	UTC−7 (Mountain)
• Summer (DST)	UTC−6 (MDT)
Congressional district	3rd
Website	sanjuancounty.colorado.gov

San Juan County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 705,^[1] making it the least populous county in Colorado. The county seat and the only incorporated municipality in the county is Silverton.^[2] The county name is the Spanish language name for "Saint John", the name Spanish explorers gave to a river and the mountain range in the area. With a mean elevation of 11,240 feet (3,430 meters), San Juan County is the highest county in the United States and also has the two highest elevation houses in the United States; the ‘Bonnie Belle’ above Animas Forks at 11,900’ – 11,950’ elevation and an unnamed house above Picayune Gulch at 12,000’ elevation.

Long before European settlement, the area was regularly explored by the Anasazi, and later the Utes, who hunted and lived in the San Juans during the summer.^[3] There is also speculation that Spanish explorers and fur traders ventured into the area in the 1600s and 1700s.^[3]

Permanent settlement in the area surrounding present-day San Juan County began in 1860, near the end of the Colorado Gold Rush. These first settlers were a group of prospectors led by Charles Baker, who made their way into the San Juan Mountains searching for gold.^[4]

After the Brunot Agreement with the Utes in 1873, which exchanged four million acres (6,200 sq mi; 16,000 km²) for the Southern Ute Indian Reservation and $25,000 per year, several mining camps were constructed.^[5] These would later become the communities of Howardsville, Eureka, and Silverton. San Juan County was formed on January 31, 1876, from part of La Plata County.

The region boomed after George Howard and R. J. McNutt discovered the Sunnyside silver vein along Hurricane Peak, outside the mining camp of Eureka. Gold was then discovered in 1882, which helped the county weather the Panic of 1893 far better than other mining communities, such as Aspen or Creede.^[4] The Sunnyside Mine would become one of Colorado's longest running and most productive mines.^[6]

Mining operators in the San Juan mountain area of Colorado formed the San Juan District Mining Association (SJDMA) in 1903, as a direct result of a Western Federation of Miners proposal to the Telluride Mining Association for the eight-hour day, which had been approved in a referendum by 72 percent of Colorado voters.^[7] The new association consolidated the power of thirty-six mining properties in San Miguel, Ouray, and San Juan Counties.^[8] The SJDMA refused to consider any reduction in hours or increase in wages, helping to provoke a bitter strike.

The Sunnyside mine was shut down after the 1929 stock market crash, but was acquired by Standard Metals Corp. in 1959, and reopened, finding gold in 1973 with the Little Mary vein. The county's economy was dealt a devastating blow in 1992 when the mine and the corresponding Shenandoah-Dives mill, the last operating in the region, permanently closed.^[9][6] The closure meant the end of jobs for over one third of the county's workforce.^[9]

According to the U.S. Census Bureau, the county has a total area of 388 square miles (1,000 km²), of which 387 square miles (1,000 km²) is land and 0.8 square miles (2.1 km²) (0.2%) is water.^[10] It is the fifth-smallest county in Colorado by area. The county is located in the heart of the San Juan Mountains of Colorado. Though it has the highest mean elevation of any county in the United States, at 11,240 feet (3,430 m), none of Colorado's 53 fourteeners (mountains at least 14,000 feet in elevation) are in San Juan County.^[11]

• Ouray County – north
• Hinsdale County – east
• La Plata County – south
• Montezuma County – southwest
• Dolores County – west
• San Miguel County – northwest

• U.S. Highway 550

• Durango-Silverton Narrow-Gauge Railroad National Historic District
• Rio Grande National Forest
• San Juan National Forest
• Shenandoah-Dives (Mayflower) Mill
• Silverton National Historic District
• Uncompahgre National Forest
• Weminuche Wilderness

• Alpine Loop National Back Country Byway
• Colorado Trail
• Continental Divide National Scenic Trail
• San Juan Skyway National Scenic Byway

Historical population

Census	Pop.	Note	%±
1880	1,087		—
1890	1,572		44.6%
1900	2,342		49.0%
1910	3,063		30.8%
1920	1,700		−44.5%
1930	1,935		13.8%
1940	1,439		−25.6%
1950	1,471		2.2%
1960	849		−42.3%
1970	831		−2.1%
1980	833		0.2%
1990	745		−10.6%
2000	558		−25.1%
2010	699		25.3%
2020	705		0.9%
2023 (est.)	802	[12]	13.8%
U.S. Decennial Census[13] 1790–1960[14] 1900–1990[15] 1990–2000[16] 2010–2020[1]

As of the census of 2000, there were 558 people, 269 households, and 157 families residing in the county. The population density was one person per square mile (0.39 person/km²). There were 632 housing units at an average density of 2 per square mile (0.77/km²). The racial makeup of the county was 97.13% White, 0.72% Native American, 0.18% Asian, 0.36% Pacific Islander, 0.72% from other races, and 0.90% from two or more races. 7.35% of the population were Hispanic or Latino of any race.

There were 269 households, out of which 23.80% had children under the age of 18 living with them, 43.90% were married couples living together, 8.90% had a female householder with no husband present, and 41.30% were non-families. 36.80% of all households were made up of individuals, and 4.80% had someone living alone who was 65 years of age or older. The average household size was 2.06 and the average family size was 2.63.

In the county, the population was spread out, with 20.10% under the age of 18, 4.30% from 18 to 24, 28.10% from 25 to 44, 40.50% from 45 to 64, and 7.00% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 110.60 males. For every 100 females age 18 and over, there were 112.40 males.

The median income for a household in the county was $30,764, and the median income for a family was $40,000. Males had a median income of $30,588 versus $19,545 for females. The per capita income for the county was $17,584. About 13.50% of families and 20.90% of the population were below the poverty line, including 29.40% of those under age 18 and 7.10% of those age 65 or over.

San Juan county is the only county outside Alaska where walking is the most common form of commute to work. As of 2013, 33% of residents walked to work, 18% drove alone, 19% carpooled, and 18% bicycled, though the small population size introduces considerable margins of error to these statistics.^[17]

As of November 2006, the one and only local school had 53 students in grades K–12.

• Silverton

• Howardsville
• Middleton
• Needleton

• Animas Forks (restored ghost town)
• Eureka (ghost town)

In the era of William Jennings Bryan, San Juan County strongly favored the Democratic Party: no Republican managed to carry the county between 1892 and 1916, and it was even one of the few northern or western counties to vote for Alton B. Parker in 1904. It remained a Democratic-leaning county until the 1960s but then turned towards the Republican Party in subsequent decades. No Democratic presidential nominee won San Juan County between 1968 and 2000, although it was one of fifteen rural or remote counties to give a plurality to Ross Perot in 1992. Since John Kerry carried the county for his party for the first time in four decades at the 2004 election, San Juan County has voted Democratic at the last five Presidential elections.

United States presidential election results for San Juan County, Colorado^[18]

Year	Republican		Democratic		Third party(ies)
	No.	%	No.	%	No.	%
2020	202	35.94%	342	60.85%	18	3.20%
2016	215	42.49%	265	52.37%	26	5.14%
2012	212	41.90%	266	52.57%	28	5.53%
2008	218	43.95%	264	53.23%	14	2.82%
2004	216	44.44%	253	52.06%	17	3.50%
2000	210	48.17%	149	34.17%	77	17.66%
1996	153	41.35%	133	35.95%	84	22.70%
1992	118	26.05%	147	32.45%	188	41.50%
1988	210	50.36%	192	46.04%	15	3.60%
1984	320	61.66%	183	35.26%	16	3.08%
1980	268	48.82%	146	26.59%	135	24.59%
1976	221	53.77%	167	40.63%	23	5.60%
1972	238	58.33%	140	34.31%	30	7.35%
1968	165	46.09%	134	37.43%	59	16.48%
1964	129	31.70%	278	68.30%	0	0.00%
1960	218	45.23%	261	54.15%	3	0.62%
1956	324	58.38%	231	41.62%	0	0.00%
1952	432	56.77%	327	42.97%	2	0.26%
1948	329	47.00%	348	49.71%	23	3.29%
1944	328	55.88%	258	43.95%	1	0.17%
1940	452	54.20%	378	45.32%	4	0.48%
1936	196	23.61%	622	74.94%	12	1.45%
1932	160	22.44%	544	76.30%	9	1.26%
1928	277	37.13%	436	58.45%	33	4.42%
1924	218	39.78%	206	37.59%	124	22.63%
1920	330	50.46%	290	44.34%	34	5.20%
1916	214	21.62%	693	70.00%	83	8.38%
1912	231	22.49%	555	54.04%	241	23.47%

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

• Official website
• Joint Town/County Planning Department
• Silverton Chamber of Commerce
• Colorado County Evolution by Don Stanwyck
• Colorado Historical Society

37°46′N 107°40′W / 37.77°N 107.67°W / 37.77; -107.67