Flood zones for vacant land in Diamond Bar

Of the 33 vacant lots in Diamond Bar, 0 (0%) are in a FEMA high-risk flood zone, where a home loan on a new building needs flood insurance. 33 (100%) are in zone X with minimal risk.

Flood zones in Diamond Bar

FEMA zone	Vacant lots	Share
X	33	100%

What the letters mean: flood zones explained.

Lots in a high-risk flood zone in Diamond Bar

Zones A, AE, AH, AO and VE, lowest assessed value first.

None in this city.

Lots outside the flood zone in Diamond Bar

Zone X with minimal risk, lowest assessed value first (25 of 33).

Lot	Acres	Assessed
540 Navajo Springs Rd8703-017-006	1.32	$9
1010 Overlook Ridge Rd8706-012-001	0.67	$9
970 Sunnyhill Pl8701-043-028	0.31	$5,284
24210 Peak Ct8701-020-020	0.02	$9,545
24218 Peak Ct8701-020-018	0.08	$14,759
22845 Rio Lobos Rd8717-030-078	0.18	$15,054
23528 Grand Rim Ct8701-026-045	0.21	$18,156
23751 Gold Rush Dr8701-023-024	0.23	$22,331
24388 Nan Ct8701-046-017	0.04	$35,540
2803 Oak Knoll Dr8713-022-063	0.23	$45,734
1523 Kiowa Crest Dr8293-038-015	0.42	$54,855
23737 Gold Rush Dr8701-023-021	0.12	$56,517
22455 Ridge Line Rd8713-006-018	1.66	$63,591
1519 Kiowa Crest Dr8293-038-013	0.38	$106,120
23936 Sunset Crossing Rd8703-020-023	0.24	$112,494
2809 Oak Knoll Dr8713-022-062	0.2	$159,896
1015 Banner Ridge Rd8701-025-029	0.34	$280,908
1261 Brea Canyon Rd8763-004-003	1.19	$373,053
3159 Windmill Dr8713-021-040	0.32	$382,635
2330 Clear Creek Ln8713-040-023	0.76	$416,160
21095 Golden Springs Dr8763-007-027	0.29	$567,504
22939 Ridge Line Rd8713-005-008	1.54	$715,946
2887 Shadow Canyon Rd8713-018-034	1.01	$1,100,000
23509 Ridge Line Rd8713-004-004	1.59	$1,248,283
2875 S Diamond Bar Blvd8285-020-007	0.4	$1,544,195

Questions about land in Diamond Bar

How much vacant land in Diamond Bar is in a flood zone?

0 of 33 vacant lots in Diamond Bar (0%) are in a FEMA high-risk flood zone (A, AE, AH, AO or VE). 33 are zone X with minimal risk.

Do I need flood insurance for land in Diamond Bar?

Not for an empty lot: flood insurance covers buildings. If you build in a high-risk zone and borrow from a federally regulated lender, flood insurance on the building is required. 0% of Diamond Bar's vacant lots are in such a zone.

More for Diamond Bar: all vacant land · fire hazard zones

Sources

Counts are LandGrab's analysis of 2026 public data for vacant parcels in Los Angeles County, updated 2026-10-19. Maps change; confirm a specific lot with the county before you buy.