Diamond Bar Commute Time Map & Patterns

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Commuting in Diamond Bar, California: how long it takes, when people leave home and how they get to work. Ask Map AI about any address.

You 9/24/26, 3:38 PM

Is the commute in Diamond Bar longer than the national average?

Map AI 9/24/26, 3:38 PM

Commute Time Burden in Diamond Bar: Annual Hours and Cost

Commuters in Diamond Bar spend about 63 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 262 hours, about 10.9 full days, spent commuting. That is 34% more time on the road than the California average of 23.5 minutes each way, a difference of 7.9 minutes.

Diamond Bar holds about 0.1% of California's population but accounts for roughly 0.2% of its total commuting time.

Working from home just 2 days a week in Diamond Bar would save about 105 hours of drive time a year, worth roughly $3,245 at the same national wage assumption used above.

Area	One-Way Commute	Daily Round-Trip	Yearly Time Spent	Estimated Yearly Cost	Local Road Traffic (VPD)
Diamond Bar	31.4 min	62.8 min	262 hrs/yr	$8,112	3,780
California	23.5 min	47.0 min	196 hrs/yr	$6,065	2,449
United States	22.4 min	44.8 min	187 hrs/yr	$5,790	1,355

The estimated yearly cost applies a single national rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area - treat it as a rough estimate, not a paycheck figure. Local road traffic counts, vehicles per day on non-highway roads, come from proprietary Ticon and TrafficZoom data.

Diamond Bar Commute Map

On average, it takes 31.4 minutes to get to work in Diamond Bar. That's 40% longer than the 22.4-minute U.S. average.

The most common departure window is 08:00 AM – 08:29 AM, followed by 09:00 AM – 09:59 AM. Driving is the most common commute choice, followed by working from home. About 18.4% work from home.

How People Get to Work in Diamond Bar

Riding a motorcycle is unusually rare in Diamond Bar: 27.1 times less than the California average (0.0% vs 0.2%).

Walking is unusually rare in Diamond Bar: 8.2 times less than the California average (0.3% vs 2.4%).

Few people walk or bike to work in Diamond Bar: just 0.6%, 5.2 times below the California average of 3.1%.

Commute Mode Trends in Diamond Bar, 2009-2024

This chart shows how workers in Diamond Bar get to work, as a share of all workers aged 16 and over, across 16 U.S. Census Bureau American Community Survey (ACS) releases from 2009 to 2024. Each release is a 5-year estimate: the 2024 figures cover surveys taken from 2020 to 2024. Because neighboring releases share most of their survey years, the lines move gradually, and a sudden change such as the rise of remote work in 2020 spreads across several releases. Hover over or tap a line to highlight it, and use the legend to show or hide a mode. Driving starts hidden so the smaller modes stay readable.

Share of workers aged 16 and over, by ACS 5-year release year. Source: U.S. Census Bureau.

Show commute mode data by year

Year	Car	Worked at Home	Public Transportation	Bicycle	Walked	Other	Taxi	Motorcycle
2009	92.0%	4.8%	1.8%	0.0%	0.6%	0.6%	0.0%	0.2%
2010	90.0%	5.7%	1.6%	0.0%	1.7%	0.7%	0.1%	0.2%
2011	89.3%	6.0%	1.7%	0.1%	2.0%	0.7%	0.1%	0.2%
2012	88.9%	6.5%	2.0%	0.0%	2.0%	0.3%	0.1%	0.2%
2013	88.6%	6.7%	2.3%	0.1%	1.8%	0.4%	0.1%	0.0%
2014	88.4%	6.5%	3.1%	0.1%	1.6%	0.4%	0.0%	0.0%
2015	88.9%	6.8%	3.1%	0.0%	0.6%	0.5%	0.0%	0.1%
2016	89.5%	6.4%	3.2%	0.0%	0.5%	0.3%	0.0%	0.1%
2017	89.2%	6.4%	3.3%	0.0%	0.5%	0.3%	0.1%	0.2%
2018	89.7%	5.9%	3.0%	0.0%	0.5%	0.5%	0.1%	0.2%
2019	90.0%	5.5%	2.8%	0.0%	0.7%	0.5%	0.1%	0.2%
2020	88.1%	8.3%	2.4%	0.0%	0.5%	0.4%	0.1%	0.1%
2021	84.2%	12.0%	2.4%	0.0%	0.7%	0.4%	0.2%	0.1%
2022	82.5%	14.1%	1.9%	0.2%	0.7%	0.5%	0.1%	0.0%
2023	81.2%	16.1%	1.4%	0.3%	0.4%	0.3%	0.1%	0.0%
2024	79.4%	18.4%	1.1%	0.3%	0.3%	0.3%	0.1%	0.0%

Driving was the most common way to get to work in every release from 2009 to 2024. Overall its share fell from 92.0% in 2009 to 79.4% in 2024, down 12.6 percentage points. It has fallen in each of the last 5 releases.

Working from home gained the most ground in Diamond Bar: its share of workers rose from 4.8% in 2009 to 18.4% in 2024, up 13.6 percentage points. Most of that increase, 12.9 points, came in the releases after 2019, which include the pandemic years.

Public transit lost the most ground, falling from 1.8% to 1.1% of workers (down 0.7 percentage points).

Walking peaked at 2.0% in 2011 and has since fallen back to 0.3%.

Commute Start Times in Diamond Bar

What Time Do People Leave for Work in Diamond Bar?

The bars show when commuters in Diamond Bar leave home for work, as a share of everyone who commutes (people who work from home are not counted), from the 2024 ACS 5-year estimates. The thin violet marks show California for comparison. Hover over or tap a row for the exact numbers.

12:00-4:59 AM		4.3%
5:00-5:29 AM		3.8%
5:30-5:59 AM		2.2%
6:00-6:29 AM		5.7%
6:30-6:59 AM		4.6%
7:00-7:29 AM		10.6%
7:30-7:59 AM		10.4%
8:00-8:29 AM		18.6%
8:30-8:59 AM		9.6%
9:00-9:59 AM		11.9%
10:00-10:59 AM		5.7%
11:00-11:59 AM		2.0%
12:00-3:59 PM		6.5%
4:00-11:59 PM		4.3%

Diamond Bar California Source: U.S. Census Bureau, ACS 5-year estimates

The busiest time to head out in Diamond Bar is 8:00-8:29 AM, when 18.6% of commuters leave home, compared with 12.6% across California. Early starts are less common than in California: 10.3% of commuters leave before 6 AM, versus 15.8% there. The morning rush looks much like California's: 44.2% of departures fall in the two hours from 6:30 to 8:29 AM, versus 43.3% there. About 1 in 3 commuters (30.3%) leave at 9 AM or later, which usually points to shift work, flexible hours or part-time jobs.

When people leave matters as much as how far they go. Rush-hour traffic shrinks how much ground a 20-minute trip covers, so a trade area drawn as a simple circle often takes in neighborhoods that customers or staff would never drive from and misses others that are an easy trip. A drive-time zone, also called an isochrone, outlines every place within a set number of minutes of an address, which makes it the more honest way to size a store's catchment, a hiring area or the commute from a new home.

See it for yourself on the interactive map: click any spot in Diamond Bar, pick a 5, 10, 15 or 30-minute drive and see the local demographics of the people who live within that exact drive time.

Is Diamond Bar Waking Up Earlier? Typical Departure Time, 2009-2024

Each line follows the typical (median) departure time: the moment by which half of commuters have already left home. Higher on the chart means a later start. Setting Diamond Bar next to California and the U.S. shows whether local mornings are drifting earlier or later than everyone else's. The figures span 16 ACS 5-year releases, so changes build up gradually rather than jumping from one year to the next.

Median time commuters leave home, by ACS 5-year release year. Source: U.S. Census Bureau.

Show typical departure times by year

Year	Diamond Bar	California	United States
2009	7:46 AM	7:39 AM	7:37 AM
2010	7:50 AM	7:41 AM	7:38 AM
2011	7:52 AM	7:41 AM	7:38 AM
2012	7:56 AM	7:42 AM	7:38 AM
2013	7:54 AM	7:43 AM	7:39 AM
2014	7:49 AM	7:43 AM	7:39 AM
2015	8:00 AM	7:43 AM	7:38 AM
2016	7:52 AM	7:43 AM	7:38 AM
2017	7:56 AM	7:42 AM	7:38 AM
2018	7:54 AM	7:42 AM	7:37 AM
2019	7:58 AM	7:42 AM	7:37 AM
2020	7:59 AM	7:42 AM	7:37 AM
2021	8:05 AM	7:42 AM	7:37 AM
2022	8:07 AM	7:43 AM	7:37 AM
2023	8:10 AM	7:44 AM	7:38 AM
2024	8:14 AM	7:45 AM	7:38 AM

In 2024, half of commuters in Diamond Bar were on the road by 8:14 AM, 28 minutes later than in 2009 (7:46 AM). The shift is sharper than across California, where the typical start moved 6 minutes later. Commuters in Diamond Bar now leave 36 minutes later than the typical American commuter (7:38 AM). Since the 2019 release, which covers the years just before the pandemic, the typical start in Diamond Bar has moved 16 minutes later. The 2024 release is the latest typical start for Diamond Bar in the whole series.

How does Diamond Bar's commute time compare?

Metric	Diamond Bar	California	US Average
Avg. Commute Time	31.4 min	23.5 min	22.4 min
Departure Window	08:00 AM – 08:29 AM	07:00 AM – 07:29 AM	07:00 AM – 07:29 AM
Secondary Departure Window	09:00 AM – 09:59 AM	08:00 AM – 08:29 AM	07:30 AM – 07:59 AM
Work From Home	18.4%	17.2%	15.0%
Walked	0.3%	2.4%	2.4%
Public Transit	1.1%	2.9%	3.2%

The average commute time in Diamond Bar is 31.4 minutes, longer than the 23.5 minutes in California.

1.1% commute by public transit, lower than the 2.9% in California. 0.3% commute by walking, lower than the 2.4% in California.

Source: U.S. Census Bureau

Diamond Bar, CA Commute Compared With Nearby Cities

Diamond Bar, CA is typical in size for this group, 46,382 residents against a local median of 43,163, so the measures below are close to a like for like comparison. Diamond Bar, CA's work from home, at 18.4%, runs 26% above the 14.6% typical of the cities around it.

The cities themselves spread 10.4% on work from home, so Diamond Bar, CA sits at one end of an already wide local range rather than apart from it. Diamond Bar, CA has the 2nd highest work from home of the 5 areas compared here.

Area	Population	One-way commute	Work from home	Typical departure
Diamond Bar, CA	46,382	31.4 min #5/5	18.4% #2/5	8:14 AM #4/5
Walnut, CA	27,757	30.8 min	19.6%	8:15 AM
Pomona, CA	148,496	28.2 min	9.2%	7:27 AM
Rowland Heights, CA	44,324	31.0 min	14.5%	8:13 AM
Brea, CA	42,002	28.3 min	14.7%	7:49 AM

Frequently Asked Questions

Common questions about commuting in Diamond Bar, California.

How much does the average commute cost workers in Diamond Bar, California?

Commuters here spend an estimated 262 hours a year on the road, worth roughly $8,112 at a typical national wage. That's 34% more than the typical California commuter spends.

When is rush hour worst in Diamond Bar, California?

Traffic peaks between 08:00 AM – 08:29 AM in Diamond Bar, California. Leaving before or after this window is the single easiest way to avoid the heaviest local congestion, though 09:00 AM – 09:59 AM also sees a secondary bump.