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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​

ZIP CodePostal District NameNumber of children under 6 with a BLL of 3.5 µg/dL or greaterPercent of children under 6 with a BLL of 3.5 µg/dL or greaterTotal number of children under 6 with a BLL
95821Sacramento10015.46%647
95608Carmichael417.37%556
94538Fremont445.56%792
95350Modesto305.31%565
95014Cupertino155.10%294
90066Los Angeles134.69%277
94539Fremont114.28%257
95240Lodi244.20%572
94536Fremont304.11%730
90042Los Angeles184.07%442
94601Oakland303.80%789
95670Rancho Cordova183.74%481
94110San Francisco223.70%595
92021El Cajon353.54%990
95355Modesto153.50%428
93291Visalia143.45%406
90037Los Angeles313.39%914
90011Los Angeles653.35%1,942
92020El Cajon293.33%870
94568Dublin113.32%331
92113San Diego353.30%1,062
94501Alameda143.23%433
92126San Diego143.17%442
90018Los Angeles163.15%508
94087Sunnyvale143.13%448
90006Los Angeles232.93%784
92410San Bernardino252.84%880
94509Antioch132.82%461
92701Santa Ana212.82%746
95051Santa Clara192.81%676
92703Santa Ana262.75%946
91770Rosemead252.73%917
95823Sacramento312.71%1,142
93905Salinas402.71%1,478
90004Los Angeles142.70%518
95206Stockton322.69%1,190
90019Los Angeles132.63%494
91732El Monte222.57%855
90044Los Angeles362.55%1,410
92404San Bernardino262.55%1,020
92105San Diego282.54%1,102
91801Alhambra142.54%552
94587Union City152.50%599
90002Los Angeles242.44%982
93458Santa Maria412.39%1,716
92114San Diego202.39%838
90003Los Angeles292.36%1,228
95076Watsonville232.33%988
92804Anaheim262.31%1,126
93308Bakersfield152.29%655
95112San Jose142.26%620
93274Tulare142.25%621
94591Vallejo112.24%491
92069San Marcos112.19%503
92324Colton182.18%827
93906Salinas242.14%1,119
92704Santa Ana242.14%1,120
95035Milpitas202.13%939
90255Huntington Park222.08%1,059
92570Perris202.07%964
91911Chula Vista282.07%1,352
91767Pomona122.06%582
92346Highland122.02%595
90744Wilmington132.02%645
90001Los Angeles202.00%998
94533Fairfield141.93%725
92707Santa Ana161.93%829
92840Garden Grove131.91%681
92154San Diego251.89%1,323
93638Madera271.87%1,444
91950National City181.85%971
90280South Gate241.82%1,319
92805Anaheim191.82%1,046
91977Spring Valley131.77%736
90063Los Angeles121.76%680
95376Tracy131.74%747
94544Hayward161.73%923
93722Fresno151.71%879
95123San Jose111.68%655
91910Chula Vista181.66%1,082
93306Bakersfield171.63%1,040
90201Bell Gardens261.62%1,602
90221Compton151.60%935
92801Anaheim141.59%883
94112San Francisco131.57%828
93304Bakersfield121.53%784
93727Fresno171.52%1,117
92557Moreno Valley121.51%796
95127San Jose131.50%867
90805Long Beach161.49%1,076
90022Los Angeles121.47%819
92553Moreno Valley201.45%1,375
91331Pacoima181.42%1,270
93030Oxnard131.41%920
92530Lake Elsinore121.40%858
92025Escondido111.39%792
92571Perris131.28%1,014
91706Baldwin Park121.25%957
90262Lynwood121.13%1,061
91744La Puente121.11%​​
1,084
93307Bakersfield170.99%1,710
93033Oxnard150.93%1,614
92335Fontana150.91%1,643
93550Palmdale120.90%1,338
92376Rialto110.79%1,390
90650Norwalk110.75%1,462
92336Fontana90.74%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.
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