Lead Paint Risk in San Francisco County, California

77.2%Pre-1978 Housing

317,735Pre-1978 Units

411,542Total Housing Units

244Census 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

317,735 housing units in San Francisco County were built before 1978.
The county's pre-1978 housing share is 77.2%, 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 244 tracts; download the full county tract CSV.

Tract	Pre-1978	Total	Risk Rate	1970s	1960s	1950s	1940s	≤1939
Census Tract 9803	40	40	100.0%	4	8	4	0	24
Census Tract 313.01	1,612	1,618	99.6%	0	52	448	629	483
Census Tract 134.02	1,286	1,296	99.2%	34	99	62	40	1,051
Census Tract 134.01	1,060	1,070	99.1%	56	278	66	20	640
Census Tract 207.01	1,634	1,651	99.0%	70	65	80	34	1,385
Census Tract 353	2,829	2,871	98.5%	204	235	832	1,454	104
Census Tract 263.01	1,361	1,388	98.1%	32	36	259	130	904
Census Tract 329.02	1,439	1,468	98.0%	23	24	315	718	359
Census Tract 128.01	1,333	1,362	97.9%	62	230	30	53	958
Census Tract 214	1,823	1,864	97.8%	111	144	72	43	1,453
Census Tract 351.02	1,294	1,324	97.7%	101	15	146	832	200
Census Tract 330.01	1,403	1,438	97.6%	24	9	91	410	869
Census Tract 263.03	1,351	1,389	97.3%	76	253	268	222	532
Census Tract 305	1,015	1,045	97.1%	53	78	704	30	150
Census Tract 130.02	1,442	1,492	96.6%	113	241	18	65	1,005
Census Tract 124.04	1,862	1,930	96.5%	42	390	73	62	1,295
Census Tract 452.01	1,301	1,348	96.5%	14	96	61	50	1,080
Census Tract 476	2,439	2,538	96.1%	152	122	244	92	1,829
Census Tract 303.02	1,379	1,439	95.8%	10	100	242	373	654
Census Tract 331	1,400	1,461	95.8%	13	63	593	429	302
Census Tract 154.02	1,328	1,388	95.7%	214	148	210	131	625
Census Tract 112	2,155	2,254	95.6%	199	286	220	60	1,390
Census Tract 260.03	1,372	1,438	95.4%	100	120	280	233	639
Census Tract 601	1,362	1,427	95.4%	189	106	401	81	585
Census Tract 302.02	2,252	2,364	95.3%	249	604	285	20	1,094
Census Tract 352.01	1,865	1,956	95.3%	55	159	354	859	438
Census Tract 477.02	1,628	1,709	95.3%	42	174	220	108	1,084
Census Tract 264.03	1,127	1,185	95.1%	90	120	254	266	397
Census Tract 129.01	1,563	1,645	95.0%	99	106	113	109	1,136
Census Tract 307	2,646	2,786	95.0%	235	377	821	682	531
Census Tract 166.01	1,478	1,557	94.9%	29	51	39	15	1,344
Census Tract 328.02	1,448	1,528	94.8%	95	91	158	661	443
Census Tract 205	1,342	1,418	94.6%	55	139	68	17	1,063
Census Tract 218	1,832	1,936	94.6%	186	210	122	116	1,198
Census Tract 262.02	998	1,056	94.5%	52	91	107	296	452
Census Tract 122.04	1,900	2,013	94.4%	20	60	177	20	1,623
Census Tract 122.03	1,199	1,271	94.3%	201	53	0	37	908
Census Tract 326.02	1,555	1,650	94.2%	89	84	177	205	1,000
Census Tract 328.01	1,377	1,464	94.1%	42	43	141	511	640
Census Tract 330.02	1,456	1,547	94.1%	0	11	186	164	1,095
Census Tract 402	2,444	2,596	94.1%	193	397	177	165	1,512
Census Tract 309	2,367	2,519	94.0%	37	128	138	427	1,637
Census Tract 102.02	1,318	1,403	93.9%	71	515	78	104	550
Census Tract 303.01	2,590	2,765	93.7%	413	237	238	431	1,271
Census Tract 326.01	1,785	1,907	93.6%	164	130	221	266	1,004
Census Tract 327	2,466	2,637	93.5%	141	176	226	450	1,473
Census Tract 212	1,481	1,585	93.4%	40	199	93	65	1,084
Census Tract 106	2,099	2,249	93.3%	68	168	276	156	1,431
Census Tract 163	2,051	2,199	93.3%	169	97	117	132	1,536
Census Tract 206.02	1,289	1,381	93.3%	11	59	266	50	903
Census Tract 255.01	1,081	1,159	93.3%	80	0	111	130	760
Census Tract 121	2,373	2,550	93.1%	68	201	80	210	1,814
Census Tract 210	2,201	2,368	92.9%	67	208	155	21	1,750
Census Tract 304	2,159	2,328	92.7%	308	109	201	385	1,156
Census Tract 130.01	1,180	1,274	92.6%	124	89	110	55	802
Census Tract 132	2,451	2,648	92.6%	513	230	146	362	1,200
Census Tract 308	2,040	2,203	92.6%	126	99	114	156	1,545
Census Tract 329.01	1,646	1,778	92.6%	64	32	218	485	847
Census Tract 306	853	922	92.5%	0	8	135	150	560
Census Tract 171.02	1,606	1,739	92.4%	124	49	56	8	1,369
Census Tract 229.03	1,147	1,241	92.4%	65	41	101	90	850
Census Tract 428	940	1,017	92.4%	56	40	40	95	709
Census Tract 611.02	979	1,060	92.4%	50	122	159	76	572
Census Tract 171.01	1,904	2,064	92.2%	75	241	175	98	1,315
Census Tract 351.01	1,483	1,610	92.1%	117	77	219	412	658
Census Tract 206.01	1,452	1,580	91.9%	167	125	35	35	1,090
Census Tract 179.03	623	679	91.8%	76	159	134	194	60
Census Tract 169	1,719	1,878	91.5%	28	137	100	71	1,383
Census Tract 230.01	1,207	1,319	91.5%	52	9	289	442	415
Census Tract 126.01	1,470	1,608	91.4%	109	115	112	85	1,049
Census Tract 478.01	1,654	1,810	91.4%	207	139	109	178	1,021
Census Tract 103	2,329	2,552	91.3%	0	190	458	68	1,613
Census Tract 133	2,087	2,285	91.3%	204	94	98	154	1,537
Census Tract 229.02	767	840	91.3%	35	0	82	19	631
Census Tract 312.01	1,737	1,902	91.3%	89	276	86	161	1,125
Census Tract 479.02	1,562	1,710	91.3%	178	92	158	197	937
Census Tract 479.03	1,354	1,485	91.2%	42	170	107	283	752
Census Tract 302.01	1,851	2,031	91.1%	132	173	267	336	943
Census Tract 352.02	1,715	1,883	91.1%	192	333	308	262	620
Census Tract 135	1,790	1,966	91.0%	225	262	190	21	1,092
Census Tract 165	2,281	2,506	91.0%	78	104	26	70	2,003
Census Tract 217	1,764	1,938	91.0%	508	513	274	56	413
Census Tract 332.04	1,746	1,921	90.9%	205	41	653	749	98
Census Tract 118	744	820	90.7%	39	82	37	31	555
Census Tract 426.01	1,799	1,983	90.7%	171	214	51	157	1,206
Census Tract 314.02	1,153	1,272	90.6%	0	50	192	353	558
Census Tract 257.02	1,130	1,249	90.5%	83	196	63	167	621
Census Tract 104.01	1,182	1,308	90.4%	27	52	170	79	854
Census Tract 122.02	1,538	1,702	90.4%	158	82	71	63	1,164
Census Tract 207.02	1,188	1,315	90.3%	103	37	39	176	833
Census Tract 109.01	1,135	1,258	90.2%	36	74	80	54	891
Census Tract 113	1,402	1,555	90.2%	98	177	62	130	935
Census Tract 260.04	1,143	1,267	90.2%	93	9	180	114	747
Census Tract 254.01	1,251	1,390	90.0%	71	32	39	88	1,021
Census Tract 261	1,871	2,082	89.9%	19	198	336	270	1,048
Census Tract 215	2,464	2,748	89.7%	251	350	228	121	1,514
Census Tract 252	2,375	2,652	89.6%	103	117	166	16	1,973
Census Tract 354	2,215	2,472	89.6%	126	180	292	1,227	390
Census Tract 477.01	1,866	2,082	89.6%	222	203	166	184	1,091
Census Tract 102.01	1,468	1,641	89.5%	158	17	68	91	1,134