Lead Paint Risk in Maricopa County, Arizona

29.4%Pre-1978 Housing

543,609Pre-1978 Units

1,850,862Total Housing Units

1009Census 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

543,609 housing units in Maricopa County were built before 1978.
The county's pre-1978 housing share is 29.4%, compared with the state rate of 29.9%.
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 1009 tracts; download the full county tract CSV.

Tract	Pre-1978	Total	Risk Rate	1970s	1960s	1950s	1940s	≤1939
Census Tract 1097.04	732	732	100.0%	180	512	25	15	0
Census Tract 1167.33	5	5	100.0%	5	0	0	0	0
Census Tract 9801	3	3	100.0%	3	0	0	0	0
Census Tract 1091.01	965	975	99.0%	71	89	786	6	13
Census Tract 1032.06	886	910	97.4%	848	38	0	0	0
Census Tract 717.02	2,297	2,374	96.8%	299	1,895	84	19	0
Census Tract 715.04	2,418	2,512	96.3%	2,037	342	39	0	0
Census Tract 1096.04	1,135	1,178	96.3%	302	675	148	0	10
Census Tract 1089.01	1,169	1,223	95.6%	120	203	281	511	54
Census Tract 1100.01	1,070	1,124	95.2%	111	152	729	78	0
Census Tract 1043.01	1,272	1,342	94.8%	463	744	65	0	0
Census Tract 1071.01	1,238	1,333	92.9%	333	480	378	47	0
Census Tract 1122.02	1,461	1,580	92.5%	245	417	642	151	6
Census Tract 1098.02	1,096	1,188	92.3%	212	472	384	18	10
Census Tract 2170.02	2,423	2,633	92.0%	650	1,685	88	0	0
Census Tract 1122.01	1,206	1,313	91.9%	47	285	763	68	43
Census Tract 1119	1,055	1,152	91.6%	44	95	121	279	516
Census Tract 1056.01	1,083	1,183	91.5%	125	109	808	41	0
Census Tract 1069	2,062	2,262	91.2%	500	725	818	19	0
Census Tract 1100.02	1,303	1,431	91.1%	126	68	1,109	0	0
Census Tract 1070.02	1,061	1,171	90.6%	174	141	741	0	5
Census Tract 718.02	2,323	2,577	90.1%	323	1,932	68	0	0
Census Tract 1115.01	669	744	89.9%	286	93	192	41	57
Census Tract 1042.19	1,058	1,178	89.8%	1,018	30	10	0	0
Census Tract 715.06	2,460	2,749	89.5%	2,366	55	39	0	0
Census Tract 1032.07	831	929	89.5%	596	226	9	0	0
Census Tract 1072.02	1,262	1,418	89.0%	122	186	861	93	0
Census Tract 4218.01	944	1,062	88.9%	748	177	13	6	0
Census Tract 1042.04	958	1,079	88.8%	909	37	0	12	0
Census Tract 1042.06	1,227	1,387	88.5%	785	432	10	0	0
Census Tract 3194.02	1,587	1,794	88.5%	1,224	319	44	0	0
Census Tract 1041	2,415	2,733	88.4%	1,461	858	0	96	0
Census Tract 613	675	767	88.0%	123	101	145	296	10
Census Tract 1116.02	1,669	1,898	87.9%	491	447	331	248	152
Census Tract 1117	2,403	2,734	87.9%	440	294	374	567	728
Census Tract 2174	1,849	2,112	87.5%	471	825	525	9	19
Census Tract 4215.02	1,032	1,180	87.5%	288	342	218	171	13
Census Tract 1074.01	976	1,117	87.4%	128	67	670	46	65
Census Tract 2178	2,686	3,078	87.3%	715	1,202	749	20	0
Census Tract 1124.02	1,160	1,331	87.2%	907	127	110	16	0
Census Tract 1070.01	1,357	1,559	87.0%	401	475	402	0	79
Census Tract 1057.01	1,061	1,223	86.8%	420	535	73	33	0
Census Tract 3185.01	1,540	1,775	86.8%	434	778	301	27	0
Census Tract 718.01	3,214	3,719	86.4%	747	2,326	141	0	0
Census Tract 1132.02	784	907	86.4%	181	186	127	80	210
Census Tract 1058	1,989	2,305	86.3%	363	1,214	358	54	0
Census Tract 1093	1,026	1,189	86.3%	14	72	877	0	63
Census Tract 1053	2,120	2,469	85.9%	917	575	522	86	20
Census Tract 3199.04	1,731	2,019	85.7%	1,705	0	26	0	0
Census Tract 4218.02	1,200	1,400	85.7%	528	420	242	0	10
Census Tract 4222.13	793	929	85.4%	778	7	8	0	0
Census Tract 1062	1,131	1,326	85.3%	273	206	630	8	14
Census Tract 1067.03	932	1,096	85.0%	345	42	501	44	0
Census Tract 1097.05	425	500	85.0%	396	8	10	11	0
Census Tract 3194.03	1,787	2,103	85.0%	915	858	14	0	0
Census Tract 1032.05	812	962	84.4%	767	28	17	0	0
Census Tract 1115.02	1,991	2,364	84.2%	358	123	548	537	425
Census Tract 930.02	1,108	1,318	84.1%	435	577	67	21	8
Census Tract 1065.02	1,744	2,083	83.7%	611	632	398	77	26
Census Tract 1108.02	1,046	1,249	83.7%	158	157	369	248	114
Census Tract 1057.02	1,185	1,419	83.5%	259	706	220	0	0
Census Tract 1097.02	1,149	1,376	83.5%	435	611	87	0	16
Census Tract 3189	2,465	2,968	83.1%	612	986	699	151	17
Census Tract 1034	1,618	1,950	83.0%	1,305	269	44	0	0
Census Tract 1042.02	1,477	1,782	82.9%	1,235	220	22	0	0
Census Tract 1064	1,180	1,429	82.6%	279	381	418	69	33
Census Tract 1168	909	1,100	82.6%	235	121	217	76	260
Census Tract 1068.02	1,272	1,546	82.3%	451	142	604	49	26
Census Tract 1127	1,764	2,143	82.3%	193	212	931	417	11
Census Tract 1091.02	1,535	1,873	82.0%	187	293	1,038	17	0
Census Tract 1154	520	636	81.8%	89	203	96	117	15
Census Tract 1132.01	712	872	81.7%	110	109	65	57	371
Census Tract 1066	1,491	1,827	81.6%	142	239	1,003	92	15
Census Tract 6154	1,480	1,815	81.5%	1,355	52	20	34	19
Census Tract 1060.03	1,111	1,374	80.9%	457	168	472	14	0
Census Tract 1149	1,124	1,390	80.9%	169	611	147	124	73
Census Tract 1114.02	1,235	1,537	80.4%	252	249	628	65	41
Census Tract 715.03	2,806	3,494	80.3%	2,068	619	101	0	18
Census Tract 1065.01	1,379	1,720	80.2%	381	303	598	60	37
Census Tract 1089.02	2,059	2,571	80.1%	155	406	1,259	136	103
Census Tract 1090.02	1,398	1,745	80.1%	634	279	403	58	24
Census Tract 1169	514	642	80.1%	162	56	246	23	27
Census Tract 1054	1,291	1,620	79.7%	349	519	414	9	0
Census Tract 1042.03	1,951	2,458	79.4%	1,563	375	13	0	0
Census Tract 1143.01	261	331	78.9%	18	57	44	26	116
Census Tract 1147.04	310	393	78.9%	78	40	160	5	27
Census Tract 2181	885	1,121	78.9%	135	177	573	0	0
Census Tract 5228.02	264	335	78.8%	25	99	97	43	0
Census Tract 1144.01	446	567	78.7%	76	26	135	150	59
Census Tract 1125.19	878	1,119	78.5%	801	41	36	0	0
Census Tract 1074.04	394	503	78.3%	339	55	0	0	0
Census Tract 1094.02	1,004	1,287	78.0%	285	250	364	91	14
Census Tract 926	1,026	1,317	77.9%	362	388	72	63	141
Census Tract 1129	1,769	2,272	77.9%	391	251	192	174	761
Census Tract 3194.01	2,140	2,752	77.8%	1,377	628	22	57	56
Census Tract 4209.02	1,059	1,361	77.8%	174	428	400	25	32
Census Tract 1125.02	1,047	1,351	77.5%	921	77	49	0	0
Census Tract 1039	1,946	2,516	77.3%	1,010	893	43	0	0
Census Tract 1170	2,116	2,736	77.3%	421	481	892	322	0
Census Tract 3198.01	1,140	1,475	77.3%	519	600	21	0	0