Census tracts · Diamond Bar, CA

Census tracts in Diamond Bar, California

10 census tracts lie mostly within Diamond Bar, and 3 more reach into it, by the 2020 census blocks they share. Median household income runs from $89,828 in Tract 4033.23 to $135,375 in Tract 4033.26, against $108,281 for Diamond Bar as a whole (ACS 2020-2024 5-year estimates).

Which census tracts of Diamond Bar earn the most and the least?

The five tracts with the highest and the lowest median household income among those mostly within Diamond Bar and with a reliable estimate.

Tract 4033.26 $135,375
Tract 4033.20 $126,059
Tract 4033.05 $119,145
Tract 4033.21 $117,222
Tract 4033.24 $114,547
Tract 4033.25 $111,445
Tract 4033.28 $100,521
Tract 4033.19 $93,211
Tract 4033.16 $93,151
Tract 4033.23 $89,828

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

Every census tract in Diamond Bar

Sort by any column; the share column is how much of each tract's land (by 2020 census blocks) lies inside Diamond Bar.

Census tracts in or partly in Diamond Bar, ACS 2020-2024 5-year estimates. Distance and direction from the Census Bureau's internal point of Diamond Bar (2024 Gazetteer), which is not always its downtown

Tract 4033.0506037403305	2.4 mi southwest	Los Angeles County	2,308±294	$119,145	$933,500	$2,989	100%
Tract 4033.1906037403319	0.6 mi northeast	Los Angeles County	4,319±602	$93,211	$809,500	$2,756	100%
Tract 4033.2006037403320	1.2 mi east	Los Angeles County	5,400±742	$126,059	$1,064,600	$2,736	100%
Tract 4033.2106037403321	2.4 mi northeast	Los Angeles County	4,927±594	$117,222	$891,500	$2,173	100%
Tract 4033.2306037403323	at the center point	Los Angeles County	5,331±678	$89,828	$872,000	$2,884	100%
Tract 4033.2406037403324	1.2 mi south	Los Angeles County	6,418±835	$114,547	$1,100,000	$2,380	100%
Tract 4033.2806037403328	1.2 mi southwest	Los Angeles County	5,347±493	$100,521	$743,700	$2,695	100%
Tract 4033.1606037403316	2.4 mi northeast	Los Angeles County	6,890±908	$93,151	$807,900	$2,180	98%
Tract 4033.2506037403325	3.0 mi south	Los Angeles County	4,706±519	$111,445	$970,200	$2,099	76%
Tract 4033.2606037403326	2.3 mi west	Los Angeles County	2,350±301	$135,375	$829,100	$2,797	67%
Tract 4087.0706037408707	2.6 mi southwest	Los Angeles County	6,839±775	$134,400	$1,076,400	$2,265	42%
Tract 4033.2706037403327	1.4 mi northwest	Los Angeles County	2,402±264	$121,935	$827,700	$2,425	24%
Tract 4087.0306037408703	5.0 mi southwest	Los Angeles County	5,326±488	$127,500	$1,204,500	$3,500 or more	10%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files · Census block assignment files

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections