San Juan County, CO Demographics

Population 724 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
San Juan County, CO map of median age by neighborhood
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Population and households in San Juan County

Household size in San Juan County

Household size, people per household
PeriodSan Juan CountyColoradoU.S.
2006–101.832.572.68
2010–141.932.632.73
2015–192.042.642.71
2020–241.812.542.65
Change−0.02−0.04−0.03
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San Juan County is a place of small households, averaging 1.81 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Only one other Colorado county has smaller households.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in San Juan County

Median age, years
PeriodSan Juan CountyColoradoU.S.
2006–1043.836.937.7
2010–1445.337.738.6
2015–1951.238.539.6
2020–2437.539.140.1
Change−6.3+2.1+2.3
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San Juan County is a little younger than the country as a whole: its median age is 37.5, against 40.1 nationally. The median age has dropped from 43.8 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next. San Juan County is younger than at least four in five Colorado counties.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in San Juan County

Single-parent households, % of households
PeriodSan Juan CountyColoradoU.S.
2006–10–10.5%12.3%
2010–144.4%10.8%12.3%
2015–192.1%9.5%11.6%
2020–246.3%9.3%11.6%
Change−1.1 pts−0.6 pts
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Single-parent households are relatively rare in San Juan County: 6.3% of households, against 11.6% nationally. San Juan County has a lower share of single-parent households than most Colorado counties.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in San Juan County

Renters in San Juan County

Renters, % of occupied homes
PeriodSan Juan CountyColoradoU.S.
2006–1045.7%32.4%33.3%
2010–1438.5%35.2%35.6%
2015–1937.4%34.8%36.0%
2020–2447.1%33.8%34.8%
Change+1.4 pts+1.4 pts+1.5 pts
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Renting is far more common in San Juan County than nationally: 47.1% of households rent their homes, against 34.8%. About six in ten owners (61.6%) have paid off their mortgages, well above the national share of 39.8%. Only one other Colorado county has a higher share of renters.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in San Juan County

Vacant homes, % of all homes
PeriodSan Juan CountyColoradoU.S.
2006–1049.8%10.3%11.4%
2010–1453.6%8.7%11.4%
2015–1961.5%8.0%11.1%
2020–2445.9%7.3%9.6%
Change−3.9 pts−3.0 pts−1.8 pts
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Vacancy is high in San Juan County: 45.9% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Few Colorado counties have a higher vacancy rate: only four of 64.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in San Juan County

Age of homes, median year built
PeriodSan Juan CountyColoradoU.S.
2006–10197319811974
2010–14197519821975
2015–19197219831977
2020–24197919881980
Change+6+7+6
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The typical home in San Juan County was built around 1979, about the same vintage as the country's housing overall (1980). Homes here are older than in Colorado overall, where the median home dates to 1988.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in San Juan County

Rent, per month
PeriodSan Juan CountyColoradoU.S.
2006–10$750$1,051$965
2010–14$833$1,165$1,040
2015–19$1,019$1,450$1,213
2020–24$992$1,963$1,571
Change+$242+$912+$606
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The median renter in San Juan County pays $992 a month for rent and utilities, well below the national median of $1,571. Rent takes 24.8% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in San Juan County

Bachelor's degrees in San Juan County

Bachelor's degrees, % of adults 25+
PeriodSan Juan CountyColoradoU.S.
2006–1030.8%36.4%28.4%
2010–1427.1%37.8%29.6%
2015–1935.7%40.9%32.1%
2020–2452.1%45.9%35.6%
Change+21.3 pts+9.4 pts+7.2 pts
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San Juan County is highly educated: just over half of adults 25 and older (52.1%) hold at least a bachelor's degree, far above the national share of 35.6%. San Juan County has a higher share of college graduates than most Colorado counties.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in San Juan County

High school graduates, % of adults 25+
PeriodSan Juan CountyColoradoU.S.
2006–1093.4%89.5%84.9%
2010–1494.4%90.5%86.1%
2015–1993.8%91.8%87.7%
2020–24100.0%92.8%89.3%
Change+6.6 pts+3.3 pts+4.3 pts
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Finishing high school is nearly universal in San Juan County: 100.0% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. No other Colorado county has a higher share of high school graduates.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in San Juan County

Unemployment, % of the labor force
PeriodSan Juan CountyColoradoU.S.
2006–109.7%6.8%8.1%
2010–1418.5%7.9%9.4%
2015–192.0%4.4%5.6%
2020–249.4%4.6%5.4%
Change−0.3 pts−2.3 pts−2.7 pts
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Unemployment in San Juan County runs well above the national rate: 9.4% of the labor force was out of work and looking, against 5.4%. Only one other Colorado county has higher unemployment. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

San Juan County compared with nearby counties

CountyHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
San Juan County1.8137.56.3%47.1%45.9%1979$99252.1%100.0%9.4%
San Miguel County1.8145.78.5%37.0%32.0%1993$2,02267.4%98.4%2.7%
Mineral County1.8856.41.0%30.3%67.3%1985$92851.7%98.4%9.1%
Dolores County1.9553.06.5%18.7%17.6%1978$1,11627.3%95.8%2.4%
Saguache County1.9850.110.4%23.1%13.4%1987$94030.9%91.8%9.2%
Garfield County2.4640.05.0%29.7%30.3%1979$1,05028.4%95.4%4.0%
Iron County3.0632.49.3%31.7%10.5%1996$1,39331.3%92.9%3.8%
Hamilton County3.2833.720.1%22.9%24.0%1970$77320.7%80.1%3.0%
Kearny County2.6936.212.0%28.3%11.6%1973$1,03918.5%81.7%2.2%
Finney County2.9233.315.9%35.1%10.0%1978$1,06918.5%70.8%3.8%
Lincoln County2.4342.410.9%25.0%29.3%1978$85321.2%94.7%1.7%

All figures 2020–24.

Counties with similar populations: Power County, ID · Lane County, KS · Lanier County, GA · Lexington City, VA · Polk County, NE · Pondera County, MT · Pope County, IL · Potter County, SD · Powder River County, MT · Powell County, MT

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up San Juan County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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