childhood lead poisoning prevention branch

Percent of Children with a Blood Lead Level (BLL) of 3.5 mcg/dL (µg/dL) or Greater, in Descending Order, by ZIP Code, 2021

ZIP Code	Postal District Name	Number of children under 6 with a BLL of 3.5 µg/dL or greater	Percent of children under 6 with a BLL of 3.5 µg/dL or greater	Total number of children under 6 with a BLL
95821	Sacramento	100	15.46%	647
95608	Carmichael	41	7.37%	556
94538	Fremont	44	5.56%	792
95350	Modesto	30	5.31%	565
95014	Cupertino	15	5.10%	294
90066	Los Angeles	13	4.69%	277
94539	Fremont	11	4.28%	257
95240	Lodi	24	4.20%	572
94536	Fremont	30	4.11%	730
90042	Los Angeles	18	4.07%	442
94601	Oakland	30	3.80%	789
95670	Rancho Cordova	18	3.74%	481
94110	San Francisco	22	3.70%	595
92021	El Cajon	35	3.54%	990
95355	Modesto	15	3.50%	428
93291	Visalia	14	3.45%	406
90037	Los Angeles	31	3.39%	914
90011	Los Angeles	65	3.35%	1,942
92020	El Cajon	29	3.33%	870
94568	Dublin	11	3.32%	331
92113	San Diego	35	3.30%	1,062
94501	Alameda	14	3.23%	433
92126	San Diego	14	3.17%	442
90018	Los Angeles	16	3.15%	508
94087	Sunnyvale	14	3.13%	448
90006	Los Angeles	23	2.93%	784
92410	San Bernardino	25	2.84%	880
94509	Antioch	13	2.82%	461
92701	Santa Ana	21	2.82%	746
95051	Santa Clara	19	2.81%	676
92703	Santa Ana	26	2.75%	946
91770	Rosemead	25	2.73%	917
95823	Sacramento	31	2.71%	1,142
93905	Salinas	40	2.71%	1,478
90004	Los Angeles	14	2.70%	518
95206	Stockton	32	2.69%	1,190
90019	Los Angeles	13	2.63%	494
91732	El Monte	22	2.57%	855
90044	Los Angeles	36	2.55%	1,410
92404	San Bernardino	26	2.55%	1,020
92105	San Diego	28	2.54%	1,102
91801	Alhambra	14	2.54%	552
94587	Union City	15	2.50%	599
90002	Los Angeles	24	2.44%	982
93458	Santa Maria	41	2.39%	1,716
92114	San Diego	20	2.39%	838
90003	Los Angeles	29	2.36%	1,228
95076	Watsonville	23	2.33%	988
92804	Anaheim	26	2.31%	1,126
93308	Bakersfield	15	2.29%	655
95112	San Jose	14	2.26%	620
93274	Tulare	14	2.25%	621
94591	Vallejo	11	2.24%	491
92069	San Marcos	11	2.19%	503
92324	Colton	18	2.18%	827
93906	Salinas	24	2.14%	1,119
92704	Santa Ana	24	2.14%	1,120
95035	Milpitas	20	2.13%	939
90255	Huntington Park	22	2.08%	1,059
92570	Perris	20	2.07%	964
91911	Chula Vista	28	2.07%	1,352
91767	Pomona	12	2.06%	582
92346	Highland	12	2.02%	595
90744	Wilmington	13	2.02%	645
90001	Los Angeles	20	2.00%	998
94533	Fairfield	14	1.93%	725
92707	Santa Ana	16	1.93%	829
92840	Garden Grove	13	1.91%	681
92154	San Diego	25	1.89%	1,323
93638	Madera	27	1.87%	1,444
91950	National City	18	1.85%	971
90280	South Gate	24	1.82%	1,319
92805	Anaheim	19	1.82%	1,046
91977	Spring Valley	13	1.77%	736
90063	Los Angeles	12	1.76%	680
95376	Tracy	13	1.74%	747
94544	Hayward	16	1.73%	923
93722	Fresno	15	1.71%	879
95123	San Jose	11	1.68%	655
91910	Chula Vista	18	1.66%	1,082
93306	Bakersfield	17	1.63%	1,040
90201	Bell Gardens	26	1.62%	1,602
90221	Compton	15	1.60%	935
92801	Anaheim	14	1.59%	883
94112	San Francisco	13	1.57%	828
93304	Bakersfield	12	1.53%	784
93727	Fresno	17	1.52%	1,117
92557	Moreno Valley	12	1.51%	796
95127	San Jose	13	1.50%	867
90805	Long Beach	16	1.49%	1,076
90022	Los Angeles	12	1.47%	819
92553	Moreno Valley	20	1.45%	1,375
91331	Pacoima	18	1.42%	1,270
93030	Oxnard	13	1.41%	920
92530	Lake Elsinore	12	1.40%	858
92025	Escondido	11	1.39%	792
92571	Perris	13	1.28%	1,014
91706	Baldwin Park	12	1.25%	957
90262	Lynwood	12	1.13%	1,061
91744	La Puente	12	1.11%	1,084
93307	Bakersfield	17	0.99%	1,710
93033	Oxnard	15	0.93%	1,614
92335	Fontana	15	0.91%	1,643
93550	Palmdale	12	0.90%	1,338
92376	Rialto	11	0.79%	1,390
90650	Norwalk	11	0.75%	1,462
92336	Fontana	9	0.74%	1,213

Data are from the RASSCLE surveillance database archive of 01/03/2023.
As of October 2021, the Centers for Disease Control and Prevention uses a blood lead reference value (BLRV) of 3.5 µg/dL to identify children with blood lead levels that are higher than most children's levels.
Each individual is counted only once, using their highest blood lead level during 2021.
Measures are in micrograms per deciliter (µg/dL) of whole blood and include arterial, cord, venous, capillary, and unknown samples. Not all elevated capillary samples are confirmed by a follow-up venous sample.
Results later determined to be false positives or errors have been excluded.
All results of blood lead analyses are reportable under California law, and the State works to ensure complete reporting. Results that are not submitted to the State, however, would not be included here.
Patient ZIP code is determined by geocoding patient address using Esri's StreetMap Premium North America locator.
Data are suppressed for ZIP codes that did not have enough blood lead tests in 2021 to meet the California Health and Human Services Agency's Data De-Identification Guidelines for public release. Therefore, not all ZIP codes are shown in this table.

Page Last Updated : February 27, 2023

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childhood lead poisoning prevention branch

Percent of Children with a Blood Lead Level (BLL) of 3.5 mcg/dL (µg/dL) ​or Greater, in Descending Order, by ZIP Code, 2021​

Percent of Children with a Blood Lead Level (BLL) of 3.5 mcg/dL (µg/dL) or Greater, in Descending Order, by ZIP Code, 2021