Cimarron County, OK Demographics

Population 2,218 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Cimarron County, OK map of median age by neighborhood
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Population and households in Cimarron County

Household size in Cimarron County

Household size, people per household
PeriodCimarron CountyOklahomaU.S.
2006–102.232.552.68
2010–142.372.602.73
2015–192.212.632.71
2020–243.132.582.65
Change+0.90+0.03−0.03
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Households in Cimarron County are large by national standards, averaging 3.13 people against 2.65 for the U.S. That usually means more families with children at home. Since 2006–10, household size has climbed from 2.23, but in a place this small, much of that may be survey noise rather than real change. Cimarron County has the largest households of any Oklahoma county.

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 Cimarron County

Median age, years
PeriodCimarron CountyOklahomaU.S.
2006–1043.637.437.7
2010–1442.737.538.6
2015–1943.137.939.6
2020–2447.738.040.1
Change+4.1+0.6+2.3
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Cimarron County skews older: half of its residents are older than 47.7, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. No other Oklahoma county is older.

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 Cimarron County

Single-parent households, % of households
PeriodCimarron CountyOklahomaU.S.
2006–1012.0%11.9%12.3%
2010–149.4%12.1%12.3%
2015–1910.4%12.1%11.6%
2020–245.6%12.0%11.6%
Change−6.4 pts+0.1 pts−0.6 pts
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Single parents head only 5.6% of households in Cimarron County, well below the national share of 11.6%. Only one other Oklahoma county has a lower share of single-parent households.

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 Cimarron County

Renters in Cimarron County

Renters, % of occupied homes
PeriodCimarron CountyOklahomaU.S.
2006–1023.3%31.8%33.3%
2010–1427.8%33.5%35.6%
2015–1927.1%34.4%36.0%
2020–2421.6%34.2%34.8%
Change−1.6 pts+2.4 pts+1.5 pts
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Only 21.6% of households in Cimarron County rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About nine in ten owners (87.8%) have paid off their mortgages, well above the national share of 39.8%. Cimarron County has a lower share of renters than the great majority of Oklahoma counties.

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 Cimarron County

Vacant homes, % of all homes
PeriodCimarron CountyOklahomaU.S.
2006–1029.3%12.8%11.4%
2010–1435.9%12.7%11.4%
2015–1936.7%13.5%11.1%
2020–2448.1%11.3%9.6%
Change+18.8 pts−1.5 pts−1.8 pts
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Vacancy is high in Cimarron County: 48.1% 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. Cimarron County has the highest vacancy rate of any Oklahoma county.

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 Cimarron County

Age of homes, median year built
PeriodCimarron CountyOklahomaU.S.
2006–10196519761974
2010–14196119771975
2015–19196019791977
2020–24196319821980
Change−1+7+6
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Cimarron County is a place of older homes: half were built before 1963, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Few Oklahoma counties have older homes: only six of 77.

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 Cimarron County

Rent, per month
PeriodCimarron CountyOklahomaU.S.
2006–10$517$716$965
2010–14$498$805$1,040
2015–19$542$897$1,213
2020–24$653$1,127$1,571
Change+$136+$411+$606
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Rent in Cimarron County runs $653 a month at the median, utilities included, well below the U.S. median of $1,571. Rent takes 26.3% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. Few Oklahoma counties have lower rents: only two of 77.

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 Cimarron County

Bachelor's degrees in Cimarron County

Bachelor's degrees, % of adults 25+
PeriodCimarron CountyOklahomaU.S.
2006–1016.8%24.2%28.4%
2010–1416.9%24.9%29.6%
2015–1922.6%26.1%32.1%
2020–2430.4%28.9%35.6%
Change+13.6 pts+4.7 pts+7.2 pts
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About three in ten adults 25 and older in Cimarron County (30.4%) have a bachelor's degree or higher, a little below the national share of 35.6%. That is in line with the rest of Oklahoma. Compared with other Oklahoma counties, though, Cimarron County has a higher share of college graduates than most.

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 Cimarron County

High school graduates, % of adults 25+
PeriodCimarron CountyOklahomaU.S.
2006–1079.4%86.0%84.9%
2010–1483.8%87.0%86.1%
2015–1982.9%88.1%87.7%
2020–2486.7%89.3%89.3%
Change+7.3 pts+3.3 pts+4.3 pts
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Just over one in eight adults in Cimarron County never finished high school, a bit more than nationally: 86.7% have a diploma or equivalent, against 89.3% across the U.S. Cimarron County has a lower share of high school graduates than most Oklahoma counties.

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 Cimarron County

Unemployment, % of the labor force
PeriodCimarron CountyOklahomaU.S.
2006–102.4%6.1%8.1%
2010–142.3%6.8%9.4%
2015–190.5%5.2%5.6%
2020–240.3%5.0%5.4%
Change−2.1 pts−1.1 pts−2.7 pts
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Unemployment in Cimarron County has been low: just 0.3% of the labor force was out of work and looking, well below the national rate of 5.4%. No other Oklahoma county has lower 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).

Cimarron County compared with nearby counties

CountyHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Cimarron County3.1347.75.6%21.6%48.1%1963$65330.4%86.7%0.3%
Texas County3.0934.016.5%33.6%17.7%1975$84420.7%76.2%3.6%
Beaver County3.0739.59.4%19.1%31.3%1970$81821.2%84.8%3.5%
Colfax County2.2647.214.8%28.2%30.2%1968$78325.3%89.6%4.4%
Harper County2.3641.53.6%16.4%22.1%1965$85529.7%88.5%2.8%
Woods County2.1134.910.0%34.7%14.9%1960$79132.1%89.9%4.9%
Alfalfa County2.3345.06.8%22.5%20.0%1958$66020.6%86.1%3.7%
Grant County2.5243.69.0%23.7%25.1%1967$83023.3%91.5%4.1%
Kay County2.5738.813.2%30.8%19.3%1963$92018.8%90.2%5.6%
San Juan County2.9938.715.7%28.8%13.5%1987$1,01819.0%87.3%7.3%
Washington County2.5339.612.9%28.1%11.1%1973$1,09930.4%92.7%4.4%

All figures 2020–24.

Counties with similar populations: Washington County, CO · Wibaux County, MT · Banner County, NE · Baraga County, MI · Barber County, KS · Barnes County, ND · Barton County, MO · Bath County, VA · Webster County, GA · Washington County, ID

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 Cimarron 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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