Montclair, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Montclair, California is 37,809 as of the 2023 American Community Survey, making it the 226th-largest city in California. The median household income is $76,338, the median home value is $549,600, and the median age is 33.5.
The population has grown 2.5% since 2010 (36,743 → 37,650).
37,809
Population
6836
People / sq mi
$76,338
Median Income
$549,600
Median Home Value
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Montclair covers 5.5 sq mi of land at 6836 people per square mile.
About Montclair, CA
Montclair is distinguished by its share of foreign-born residents, 6.4% of the population. Montclair is a city in California with a population of 37,809.
Median household income is $76,338, near the US median of $78,538. Roughly 13.7% of residents fall below the poverty line, above the national 12.4%. A typical home is worth $549,600, with typical rent around $1,759.
Fewer adults hold degrees here than in most comparable places — 17.8%, below the national 35.0%. Just 5.8% of workers are home-based, below the national 14.0%, and the average commute runs about 30 minutes each way.
Montclair city Population History (2010-2024)
The city of Montclair city had a population of 36,743 in 2010 and 37,650 in 2024, a 2.5% growth over 14 years. The peak was 40,083 in 2019. Average annual growth rate: 0.19%.
37,650
Population (2024)
36,743
Population (2010)
40,083
Peak (2019)
0.19%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 36,743 |
| 2011 | 37,279 |
| 2012 | 37,440 |
| 2013 | 37,923 |
| 2014 | 38,212 |
| 2015 | 38,447 |
| 2016 | 38,784 |
| 2017 | 39,124 |
| 2018 | 39,324 |
| 2019 | 40,083 |
| 2020 | 37,946 |
| 2021 | 37,970 |
| 2022 | 37,780 |
| 2023 | 37,646 |
| 2024 | 37,650 |
Race & Ethnicity
| White | 27.6% |
| Black or African American | 5.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 5.0% |
| Two or More Races | 0.0% |
Economy & Income
$76,338
Median Household Income
$26,889
Per Capita Income
13.7%
Poverty Rate
3.6%
Unemployment Rate
Housing
$549,600
Median Home Value
$1,759
Median Rent
53.9%
Owner-Occupied
Education
73.3%
High School+
17.8%
Bachelor's+
Commute
1.1%
Drive Alone
74.4%
Public Transit
5.8%
Work From Home
30.4 min
Avg Commute
Community Profile
6.4%
Foreign Born
42.6%
Non-English at Home
3.0%
Veterans
11.5%
With Disability
90.3%
Health Insurance
97.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 21.7% |
| Manufacturing | 11.3% |
| Retail Trade | 11.1% |
| Education, Health Care & Social Services | 10.1% |
| Construction | 8.3% |
| Finance, Insurance & Real Estate | 7.5% |
| Arts, Entertainment & Food Services | 6.1% |
| Public Administration | 4.5% |
| Information | 3.9% |
| Transportation & Warehousing | 0.6% |
| Agriculture & Mining | 0.4% |
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Frequently Asked Questions
Montclair, California has a population of 37,809 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 226th-largest city in California.
The median household income in Montclair, California is $76,338, with 13.7% of residents living below the federal poverty level.
The median home value in Montclair, California is $549,600, with median monthly rent at $1,759 and a homeownership rate of 53.9%.
The median age in Montclair, California is 33.5 years. The population is 49.0% male and 51.0% female.
The population has grown 2.5% since 2010 (36,743 → 37,650).
Montclair city, CA Climate
Montclair city, CA has an average annual temperature of 18°C (64°F) and receives about 408 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
18°C
Avg Temp
408
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 12° / 54° | 84 mm |
| February | 13° / 56° | 87 mm |
| March | 14° / 58° | 76 mm |
| April | 17° / 62° | 28 mm |
| May | 19° / 65° | 6 mm |
| June | 22° / 71° | 1 mm |
| July | 24° / 76° | 1 mm |
| August | 25° / 77° | 3 mm |
| September | 23° / 74° | 9 mm |
| October | 20° / 67° | 11 mm |
| November | 15° / 60° | 46 mm |
| December | 12° / 54° | 56 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Montclair city, CA
The most comfortable months to visit Montclair city, CA are typically June, October and September, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 33°C high). The coldest is January (near 5°C low). February is usually the wettest month.
Where to stay near Montclair
Visiting or relocating to Montclair, CA? Compare hotels and short-term rentals across the metro — live availability and prices.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.