Diamond Bar vs Walnut

Side-by-side comparison of Diamond Bar, CA and Walnut, CA - population, economics, education, health, hospitals, climate, and cost of living from official U.S. government data.

Reading a Diamond Bar vs Walnut comparison, what matters, what doesn't

Diamond Bar (57K residents in California) and Walnut (30K residents in California) differ first on the three numbers nearly every comparison starts with: median household income ($108,281 vs $129,449), median home value ($902,200 vs $1,014,000), and median rent ($2,521 vs $3,202 per month). Those three are highly correlated within a region but often decouple across regions because they respond to different levers, income tracks the local job market, home values track housing supply plus interest-rate pressure, and rent tracks short-run vacancy. Comparing all three at once is how you spot whether a city is "expensive because people earn a lot" or "expensive despite what they earn."

The second layer is the layer most headline comparisons skip. Poverty rate (10% vs 10.1%) and unemployment (4.9% vs 3.5%) describe the distribution under the median, which two cities with similar averages can present very differently. The share with a bachelor's degree or higher (52.8% vs 57.3%) is the single best proxy for income trajectory over the next decade.

Areazine renders each row with a national-average tick mark precisely so you can tell in one glance whether both cities are above/below the U.S. norm (they often are, cities with active residential markets self-select for certain profiles) rather than focusing on which is "better." For life decisions, where to relocate, where to retire, where to enroll a child in school, pair this page with the individual city profiles below, where health indicators, hospital ratings, school counts, and climate normals appear in full rather than as the compressed single row you see here.

Diamond Bar
California
Pop: 57K
Income: $108,281
Home: $902,200
Walnut
California
Pop: 30K
Income: $129,449
Home: $1,014,000

Head-to-Head Summary

Side-by-side comparison of Diamond Bar and Walnut on key metrics
Metric Diamond Bar Walnut
Population 57K 30K
Median Household Income $108,281 $129,449
Median Home Value $902,200 $1,014,000
Median Rent $2,521/mo $3,202/mo
Poverty Rate 10% 10.1%
Unemployment Rate 4.9% 3.5%
Bachelor's Degree+ 52.8% 57.3%

Population

Source: U.S. Census Bureau ACS 2024 (5-year)
Population
57K
Population
30K
Median Age
45.7 yrs
Median Age
46.8 yrs
10-Year Pop Growth Same
-1%
10-Year Pop Growth
-1%

Economics

Source: U.S. Census Bureau ACS 2024 (5-year)
Median Household Income
$108,281
Median Household Income
$129,449
Median Home Value
$902,200
Median Home Value
$1,014,000
Median Rent
$2,521
Median Rent
$3,202
Poverty Rate
10%
Poverty Rate
10.1%
Unemployment Rate
4.9%
Unemployment Rate
3.5%
10-Year Income Growth Same
+61%
10-Year Income Growth
+61%

Education & Work

Source: U.S. Census Bureau ACS 2024 (5-year)
Bachelor's Degree or Higher
52.8%
Bachelor's Degree or Higher
57.3%
Work From Home
18.4%
Work From Home
19.7%
Public Transit
1%
Public Transit
1.8%

Health (CDC PLACES)

Source: CDC PLACES 2023
Frequent Mental Distress
12.3%
Frequent Mental Distress
11.2%
Obesity
18.2%
Obesity
16.6%
Physical Inactivity Same
22%
Physical Inactivity
22%
Smoking
7.8%
Smoking
7.1%
Lack of Health Insurance
5.5%
Lack of Health Insurance
5.1%

Healthcare

Source: CMS Hospital Compare 2024
Hospitals
0
Hospitals
0
Avg Hospital Rating
N/A
Avg Hospital Rating
N/A

Demographics

Race categories sum to 100%. Hispanic or Latino is an ethnicity that spans all race categories, shown separately per Census Bureau methodology.

Diamond Bar Population
Race
White 14.6%
African American 3.1%
Asian 62.7%
Two or More Races 2.2%
Walnut Population
Race
White 11%
African American 2%
Asian 69.4%
Two or More Races 0.4%

Want to compare different cities?

Use our interactive city comparison tool →
Data Sources

Population and economic data from the Census Bureau American Community Survey (2024 5-year estimates). Health data from the CDC PLACES (2023). Hospital data from CMS Hospital Compare (2024). Climate data from NOAA Climate Normals (1991–2020). Cost of living from BEA Regional Price Parities via FRED.

Related

Population is place-level (U.S. Census Bureau). Income, home value, rent, poverty and education are place-level American Community Survey figures; health from CDC PLACES, hospitals from CMS Hospital Compare, climate from NOAA Climate Normals, and cost of living from BEA Regional Price Parities. See our methodology for details.