Montclair, CA Demographics

Population 38,071 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Montclair, CA map of median age by neighborhood
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Population and households in Montclair

Household size in Montclair

Household size, people per household
PeriodMontclairRiverside areaCaliforniaU.S.
2006–104.013.353.042.68
2010–143.653.433.102.73
2015–193.823.423.092.71
2020–243.573.343.012.65
Change−0.43−0.01−0.03−0.03
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Households in Montclair are large by national standards, averaging 3.57 people against 2.65 for the U.S. That usually means more families with children at home. Household size has dropped from 4.01 in 2006–10, a much bigger shift than nationally.

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 Montclair

Median age, years
PeriodMontclairRiverside areaCaliforniaU.S.
2006–1030.533.635.837.7
2010–1432.934.636.838.6
2015–1932.435.937.939.6
2020–2433.937.039.040.1
Change+3.4+3.4+3.1+2.3
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Montclair is young: half of its residents are under 33.9, compared with a national median of 40.1. The population tilts toward young families with children. Since 2006–10, the median age has climbed from 30.5, in line with the national trend.

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 Montclair

Single-parent households, % of households
PeriodMontclairRiverside areaCaliforniaU.S.
2006–1017.3%15.2%13.5%12.3%
2010–1418.2%15.7%13.5%12.3%
2015–1918.1%14.4%12.3%11.6%
2020–2417.8%14.8%12.3%11.6%
Change+0.5 pts−0.3 pts−1.2 pts−0.6 pts
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Single-parent households are common in Montclair: 17.8% of all households, against 11.6% nationally. The single-parent share is up 0.5 points from 2006–10, even as the national share fell. Montclair has a higher share of single-parent households than the great majority of California cities.

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 Montclair

Renters in Montclair

Renters, % of occupied homes
PeriodMontclairRiverside areaCaliforniaU.S.
2006–1039.4%32.3%42.6%33.3%
2010–1440.9%36.6%45.2%35.6%
2015–1947.5%36.7%45.2%36.0%
2020–2446.0%34.2%44.1%34.8%
Change+6.7 pts+1.9 pts+1.5 pts+1.5 pts
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Renting is far more common in Montclair than nationally: 46.0% of households rent their homes, against 34.8%. Among homeowners, 39.5% have no mortgage at all, about the same as nationally. The renter share has risen 6.7 points since 2006–10, a much bigger shift than nationally.

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 Montclair

Vacant homes, % of all homes
PeriodMontclairRiverside areaCaliforniaU.S.
2006–109.3%11.8%8.7%11.4%
2010–148.7%10.9%8.1%11.4%
2015–193.1%9.4%7.5%11.1%
2020–244.4%7.8%7.3%9.6%
Change−4.9 pts−4.0 pts−1.4 pts−1.8 pts
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Only 4.4% of homes in Montclair are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Since 2006–10, vacancy has fallen 4.9 points, in line with the national trend. Montclair has a lower vacancy rate than the great majority of California cities.

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 Montclair

Age of homes, median year built
PeriodMontclairRiverside areaCaliforniaU.S.
2006–101971198319721974
2010–141969198419731975
2015–191974198419741977
2020–241971198619761980
Change+1+3+4+6
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The housing in Montclair is old by national standards: the median home dates to 1971, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. Newer construction is concentrated in the north, while the east has the oldest housing.

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 Montclair

Rent, per month
PeriodMontclairRiverside areaCaliforniaU.S.
2006–10$1,189$1,287$1,298$965
2010–14$1,217$1,332$1,379$1,040
2015–19$1,536$1,549$1,721$1,213
2020–24$1,853$2,083$2,229$1,571
Change+$664+$796+$931+$606
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Rent in Montclair runs $1,853 a month at the median, utilities included, above the U.S. median of $1,571. Locally, though, rents here are lower than in the Riverside area as a whole ($2,083). Rent has climbed $664 a month since 2006–10, up 56%, a slower climb than the nation's. The typical renter here spends 39.7% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.

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 Montclair

Bachelor's degrees in Montclair

Bachelor's degrees, % of adults 25+
PeriodMontclairRiverside areaCaliforniaU.S.
2006–1013.3%19.2%29.1%28.4%
2010–1412.3%19.4%30.1%29.6%
2015–1916.2%21.2%32.9%32.1%
2020–2418.1%24.0%36.3%35.6%
Change+4.8 pts+4.8 pts+7.1 pts+7.2 pts
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College degrees are relatively uncommon in Montclair: 18.1% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree is up 4.8 points from 2006–10, as it has nationally. College graduates are most concentrated in the north and least in the west.

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 Montclair

High school graduates, % of adults 25+
PeriodMontclairRiverside areaCaliforniaU.S.
2006–1069.3%77.9%79.9%84.9%
2010–1467.8%78.6%80.7%86.1%
2015–1971.8%80.6%82.6%87.7%
2020–2473.7%82.5%84.2%89.3%
Change+4.4 pts+4.6 pts+4.3 pts+4.3 pts
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Just over a quarter of adults in Montclair never finished high school, well above the national share: only 73.7% have a diploma or equivalent, against 89.3% nationally. The share with a diploma is up 4.4 points from 2006–10, mirroring the country. Montclair has a lower share of high school graduates than at least four in five California cities.

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 Montclair

Unemployment, % of the labor force
PeriodMontclairRiverside areaCaliforniaU.S.
2006–1015.5%11.4%9.2%8.1%
2010–1412.2%14.4%11.3%9.4%
2015–197.7%7.7%6.3%5.6%
2020–246.1%6.8%6.6%5.4%
Change−9.4 pts−4.6 pts−2.6 pts−2.7 pts
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Unemployment runs a little high in Montclair: 6.1% of the labor force was out of work and looking, against 5.4% nationally. Even so, the rate is lower than in the wider Riverside area (6.8%). Since 2006–10, unemployment has fallen 9.4 points, a much bigger shift than nationally.

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).

Montclair compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Montclair3.5733.917.8%46.0%4.4%1971$1,85318.1%73.7%6.1%
Claremont2.5740.99.4%36.5%12.2%1963$2,30560.1%94.3%5.3%
Pomona3.5236.916.1%45.8%5.0%1967$1,97619.5%72.7%6.4%
Upland2.9140.512.9%41.2%4.3%1977$2,30138.2%91.2%5.2%
Ontario3.4334.516.8%42.0%5.5%1981$2,19724.2%79.0%5.8%
Chino3.3337.313.1%35.5%5.1%1988$2,35027.9%86.3%6.6%
La Verne2.6846.68.1%30.5%6.2%1975$2,72542.9%93.1%5.9%
Chino Hills3.0841.27.1%30.5%3.7%1991$2,99748.5%93.3%6.6%
San Dimas2.8241.012.5%27.4%4.0%1973$2,55039.3%92.9%5.3%
Rancho Cucamonga3.0038.710.3%40.0%4.8%1990$2,55737.6%91.2%5.6%
Diamond Bar2.9946.08.7%22.7%5.7%1978$2,53652.6%92.2%5.0%

All figures 2020–24.

Cities with similar populations: Long Beach, NY · Salem, VA · Milledgeville, GA · Midvale, UT · Michigan City, IN · Merrillville, IN · Marrero, LA · Marion, IN · Manor, TX · Manitowoc, WI

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 Montclair. 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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