Lead Paint Risk in San Diego County, California

50.6%Pre-1978 Housing

627,544Pre-1978 Units

1,240,607Total Housing Units

737Census Tracts

How to Interpret This

This is an area-level screening signal based on Census housing-age data. It does not confirm lead paint in any specific home. Homes built before 1978 may contain lead-based paint, and certified inspection or testing is the only way to confirm a property-level hazard.

Reporter / Resident Story Kit

627,544 housing units in San Diego County were built before 1978.
The county's pre-1978 housing share is 50.6%, compared with the state rate of 56.7%.
Local questions: Which neighborhoods have the oldest housing stock? Are lead-safe renovation resources available? Do renters and families with young children know how to request testing?

Highest-Risk Census Tracts

Individual census tracts ranked by pre-1978 housing percentage. Showing the top 100 of 737 tracts; download the full county tract CSV.

Tract	Pre-1978	Total	Risk Rate	1970s	1960s	1950s	1940s	≤1939
Census Tract 55	16	16	100.0%	0	0	16	0	0
Census Tract 97.03	1,293	1,306	99.0%	144	191	933	7	18
Census Tract 32.11	921	936	98.4%	139	131	651	0	0
Census Tract 100.04	1,065	1,090	97.7%	627	411	27	0	0
Census Tract 141.01	1,292	1,323	97.7%	130	106	634	343	79
Census Tract 31.05	1,254	1,286	97.5%	56	430	699	6	63
Census Tract 85.12	1,497	1,563	95.8%	285	523	684	0	5
Census Tract 129	1,122	1,172	95.7%	111	195	680	120	16
Census Tract 70.02	1,233	1,290	95.6%	90	99	538	378	128
Census Tract 85.02	2,493	2,607	95.6%	202	750	1,472	69	0
Census Tract 118.01	1,082	1,135	95.3%	310	139	138	212	283
Census Tract 83.06	1,040	1,094	95.1%	283	655	59	0	43
Census Tract 133.01	1,539	1,619	95.1%	130	512	866	18	13
Census Tract 29.03	1,532	1,620	94.6%	167	233	1,132	0	0
Census Tract 31.08	993	1,050	94.6%	188	478	300	27	0
Census Tract 100.11	989	1,048	94.4%	341	564	75	9	0
Census Tract 69	2,022	2,163	93.5%	290	159	599	269	705
Census Tract 85.06	1,492	1,600	93.3%	275	714	466	13	24
Census Tract 121.01	656	703	93.3%	75	92	175	190	124
Census Tract 31.07	1,464	1,570	93.2%	672	448	273	35	36
Census Tract 202.08	729	785	92.9%	287	323	86	33	0
Census Tract 19	1,515	1,634	92.7%	131	52	175	331	826
Census Tract 150.01	1,482	1,611	92.0%	317	280	860	6	19
Census Tract 113	34	37	91.9%	23	4	3	0	4
Census Tract 133.02	1,441	1,568	91.9%	233	711	473	24	0
Census Tract 72	1,434	1,564	91.7%	95	103	919	200	117
Census Tract 85.04	2,143	2,339	91.6%	120	781	1,189	53	0
Census Tract 95.06	1,493	1,632	91.5%	1,422	48	11	0	12
Census Tract 126	1,530	1,677	91.2%	181	468	751	121	9
Census Tract 83.44	1,145	1,261	90.8%	760	365	20	0	0
Census Tract 170.06	1,027	1,131	90.8%	590	414	11	12	0
Census Tract 20.01	1,431	1,578	90.7%	169	48	114	216	884
Census Tract 98.04	1,737	1,915	90.7%	217	1,365	137	9	9
Census Tract 28.04	1,495	1,652	90.5%	54	296	528	376	241
Census Tract 83.01	1,205	1,333	90.4%	460	665	80	0	0
Census Tract 97.06	2,505	2,791	89.8%	679	1,564	233	9	20
Census Tract 173.05	1,243	1,384	89.8%	1,191	40	12	0	0
Census Tract 20.02	1,146	1,284	89.3%	49	67	238	423	369
Census Tract 91.04	1,050	1,179	89.1%	110	267	478	151	44
Census Tract 174.05	1,273	1,428	89.1%	772	283	192	26	0
Census Tract 98.02	2,202	2,473	89.0%	548	1,144	483	7	20
Census Tract 44	1,698	1,913	88.8%	105	172	238	159	1,024
Census Tract 1	1,135	1,279	88.7%	33	111	133	32	826
Census Tract 147.02	1,561	1,759	88.7%	147	100	766	469	79
Census Tract 162.01	1,688	1,903	88.7%	721	444	376	135	12
Census Tract 186.21	532	600	88.7%	182	331	6	9	4
Census Tract 85.01	1,917	2,163	88.6%	603	253	1,044	0	17
Census Tract 100.03	1,404	1,584	88.6%	824	550	10	20	0
Census Tract 83.13	796	903	88.2%	447	236	90	7	16
Census Tract 161	1,945	2,219	87.7%	476	507	848	100	14
Census Tract 73.02	904	1,032	87.6%	49	84	427	259	85
Census Tract 105.01	510	582	87.6%	49	96	224	125	16
Census Tract 154.03	748	855	87.5%	349	292	76	13	18
Census Tract 30.01	1,089	1,249	87.2%	466	105	412	70	36
Census Tract 32.12	927	1,066	87.0%	400	158	369	0	0
Census Tract 123.04	1,346	1,548	87.0%	244	278	594	196	34
Census Tract 148.04	1,825	2,099	86.9%	750	764	264	47	0
Census Tract 27.12	1,568	1,806	86.8%	764	209	444	112	39
Census Tract 142	1,899	2,189	86.8%	267	441	804	197	190
Census Tract 151	1,644	1,897	86.7%	327	359	891	61	6
Census Tract 153.02	1,364	1,574	86.7%	397	418	483	38	28
Census Tract 75.01	2,023	2,339	86.5%	665	342	487	334	195
Census Tract 134.01	1,194	1,380	86.5%	276	461	423	33	1
Census Tract 75.02	1,700	1,968	86.4%	480	283	473	134	330
Census Tract 91.03	1,456	1,689	86.2%	199	344	777	125	11
Census Tract 85.03	2,783	3,239	85.9%	1,170	660	932	13	8
Census Tract 96.02	1,498	1,744	85.9%	424	223	847	4	0
Census Tract 133.06	1,151	1,341	85.8%	331	595	215	10	0
Census Tract 81.02	1,347	1,572	85.7%	295	163	335	343	211
Census Tract 95.02	1,383	1,615	85.6%	1,281	59	19	0	24
Census Tract 133.07	1,186	1,387	85.5%	658	233	249	46	0
Census Tract 160	808	947	85.3%	168	236	347	42	15
Census Tract 32.02	1,112	1,315	84.6%	172	87	531	268	54
Census Tract 128	1,228	1,451	84.6%	82	306	606	210	24
Census Tract 14	1,681	1,990	84.5%	164	358	164	90	905
Census Tract 185.12	1,853	2,198	84.3%	1,150	634	57	0	12
Census Tract 71	1,930	2,296	84.1%	436	279	648	186	381
Census Tract 97.04	2,394	2,850	84.0%	1,716	572	90	0	16
Census Tract 43	1,677	1,999	83.9%	178	157	140	122	1,080
Census Tract 85.07	2,356	2,808	83.9%	899	1,346	111	0	0
Census Tract 27.09	1,016	1,213	83.8%	250	348	160	147	111
Census Tract 170.59	1,426	1,702	83.8%	1,127	279	13	7	0
Census Tract 153.01	942	1,126	83.7%	304	129	497	3	9
Census Tract 101.04	992	1,186	83.6%	309	502	158	10	13
Census Tract 124.02	1,773	2,132	83.2%	544	373	513	188	155
Census Tract 149.02	1,212	1,460	83.0%	402	82	273	395	60
Census Tract 47	658	794	82.9%	62	15	45	48	488
Census Tract 136.01	1,753	2,116	82.8%	694	442	501	34	82
Census Tract 137.01	733	886	82.7%	307	184	165	55	22
Census Tract 181.01	1,193	1,445	82.6%	195	309	537	145	7
Census Tract 85.05	1,736	2,106	82.4%	213	614	887	22	0
Census Tract 130	1,640	1,994	82.2%	369	324	788	124	35
Census Tract 42	2,041	2,485	82.1%	364	200	404	382	691
Census Tract 80.02	917	1,117	82.1%	117	293	208	185	114
Census Tract 133.12	776	951	81.6%	301	449	26	0	0
Census Tract 74.02	1,369	1,680	81.5%	221	165	459	218	306
Census Tract 152	1,201	1,477	81.3%	230	174	386	288	123
Census Tract 31.03	1,388	1,718	80.8%	365	679	292	52	0
Census Tract 31.01	894	1,108	80.7%	23	89	602	174	6
Census Tract 93.01	1,585	1,968	80.5%	548	544	471	3	19