Lead Paint Risk in Baltimore County, Maryland

59.5%Pre-1978 Housing

208,257Pre-1978 Units

350,296Total Housing Units

219Census 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

208,257 housing units in Baltimore County were built before 1978.
The county's pre-1978 housing share is 59.5%, compared with the state rate of 51.6%.
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 219 tracts; download the full county tract CSV.

Tract	Pre-1978	Total	Risk Rate	1970s	1960s	1950s	1940s	≤1939
Census Tract 4515	1,420	1,436	98.9%	122	271	945	82	0
Census Tract 4912.02	788	797	98.9%	49	97	558	76	8
Census Tract 4309	2,011	2,043	98.4%	219	318	658	325	491
Census Tract 4523	1,229	1,250	98.3%	0	212	606	393	18
Census Tract 4911	1,302	1,325	98.3%	56	112	262	271	601
Census Tract 4410	1,461	1,491	98.0%	94	828	328	61	150
Census Tract 4201	1,341	1,371	97.8%	37	13	450	823	18
Census Tract 4906.01	854	873	97.8%	7	4	131	340	372
Census Tract 4211.02	1,139	1,174	97.0%	211	65	591	222	50
Census Tract 4086.01	1,532	1,583	96.8%	124	354	787	219	48
Census Tract 4401	1,663	1,718	96.8%	52	186	742	459	224
Census Tract 4919	776	807	96.2%	0	226	439	92	19
Census Tract 4207.02	808	844	95.7%	7	120	266	308	107
Census Tract 4916	1,359	1,421	95.6%	134	95	882	240	8
Census Tract 4303	2,268	2,390	94.9%	146	629	899	209	385
Census Tract 4910	753	796	94.6%	61	57	170	136	329
Census Tract 4920.01	581	616	94.3%	116	90	320	12	43
Census Tract 4204.02	724	770	94.0%	55	60	322	250	37
Census Tract 4915	1,852	1,971	94.0%	214	143	919	523	53
Census Tract 4206	1,457	1,555	93.7%	63	229	659	229	277
Census Tract 4921.02	875	934	93.7%	69	62	270	227	247
Census Tract 4411.01	824	882	93.4%	57	124	572	48	23
Census Tract 4308	1,472	1,577	93.3%	0	195	512	340	425
Census Tract 4927	1,581	1,714	92.2%	32	178	492	411	468
Census Tract 4203.03	477	519	91.9%	0	71	313	74	19
Census Tract 4205	1,426	1,554	91.8%	27	175	873	120	231
Census Tract 4203.02	950	1,037	91.6%	19	392	398	95	46
Census Tract 4034.02	2,294	2,524	90.9%	619	767	444	248	216
Census Tract 4013.02	1,365	1,504	90.8%	270	189	790	116	0
Census Tract 4402	1,037	1,142	90.8%	471	201	120	40	205
Census Tract 4914.02	1,101	1,213	90.8%	77	141	816	60	7
Census Tract 4301.04	985	1,086	90.7%	68	30	327	104	456
Census Tract 4013.01	1,306	1,443	90.5%	131	210	697	169	99
Census Tract 4902	1,042	1,151	90.5%	18	176	801	19	28
Census Tract 4002	1,028	1,142	90.0%	121	136	364	156	251
Census Tract 4086.02	689	769	89.6%	23	226	410	18	12
Census Tract 4921.01	1,557	1,742	89.4%	161	455	519	354	68
Census Tract 4204.01	2,015	2,256	89.3%	358	401	962	260	34
Census Tract 4502	1,196	1,343	89.1%	69	217	491	279	140
Census Tract 4212	708	801	88.4%	31	21	167	434	55
Census Tract 4008	1,032	1,172	88.1%	91	201	413	44	283
Census Tract 4525	1,191	1,354	88.0%	35	162	874	54	66
Census Tract 4920.02	1,407	1,598	88.0%	241	303	499	184	180
Census Tract 4504	785	897	87.5%	158	42	235	183	167
Census Tract 4026.02	679	778	87.3%	63	209	389	10	8
Census Tract 4505.01	1,679	1,928	87.1%	9	187	458	827	198
Census Tract 4088	847	988	85.7%	95	215	304	18	215
Census Tract 4209	1,355	1,586	85.4%	25	67	250	356	657
Census Tract 4012	1,202	1,410	85.2%	19	172	561	69	381
Census Tract 4404	2,069	2,434	85.0%	153	160	845	419	492
Census Tract 4520	937	1,104	84.9%	57	95	205	332	248
Census Tract 4912.01	740	873	84.8%	69	256	179	169	67
Census Tract 4208	1,155	1,366	84.6%	63	100	569	326	97
Census Tract 4033	921	1,093	84.3%	34	149	450	189	99
Census Tract 4032.02	713	847	84.2%	0	74	313	222	104
Census Tract 4211.01	1,201	1,441	83.3%	104	69	401	381	246
Census Tract 4007.02	605	728	83.1%	19	75	81	142	288
Census Tract 4010	696	839	83.0%	55	53	36	41	511
Census Tract 4032.01	1,081	1,303	83.0%	143	216	478	117	127
Census Tract 4923	1,354	1,632	83.0%	37	126	942	149	100
Census Tract 4405	1,101	1,328	82.9%	65	149	457	302	128
Census Tract 4906.03	828	1,001	82.7%	161	108	403	60	96
Census Tract 4026.04	1,918	2,330	82.3%	226	1,142	317	102	131
Census Tract 4906.02	1,129	1,374	82.2%	90	70	530	388	51
Census Tract 4901	1,238	1,520	81.4%	199	357	570	51	61
Census Tract 4085.05	1,190	1,463	81.3%	291	613	229	41	16
Census Tract 4501	1,287	1,585	81.2%	216	136	487	193	255
Census Tract 4023.04	1,070	1,326	80.7%	70	233	747	20	0
Census Tract 4031	740	920	80.4%	70	251	319	52	48
Census Tract 4207.01	1,092	1,358	80.4%	78	171	527	280	36
Census Tract 4006	1,153	1,440	80.1%	127	62	148	263	553
Census Tract 4009	601	750	80.1%	76	97	218	71	139
Census Tract 4908	1,079	1,354	79.7%	0	238	485	188	168
Census Tract 4035	1,512	1,920	78.8%	102	812	520	8	70
Census Tract 4411.02	1,634	2,082	78.5%	227	612	573	74	148
Census Tract 4011.02	381	488	78.1%	63	103	215	0	0
Census Tract 4913	1,178	1,532	76.9%	351	324	350	17	136
Census Tract 4087.02	723	941	76.8%	193	303	170	54	3
Census Tract 4015.07	1,928	2,520	76.5%	681	874	271	0	102
Census Tract 4505.04	2,209	2,891	76.4%	531	742	801	67	68
Census Tract 4024.05	1,119	1,469	76.2%	191	325	263	128	212
Census Tract 4007.01	1,183	1,555	76.1%	359	101	593	28	102
Census Tract 4202	1,194	1,571	76.0%	79	85	1,002	17	11
Census Tract 4513	1,191	1,568	76.0%	272	137	190	564	28
Census Tract 4085.03	1,332	1,756	75.9%	597	448	269	18	0
Census Tract 4306	726	962	75.5%	41	91	275	44	275
Census Tract 4025.06	1,370	1,816	75.4%	492	599	202	41	36
Census Tract 4045.02	1,234	1,650	74.8%	524	501	148	16	45
Census Tract 4905	1,203	1,609	74.8%	137	247	370	152	297
Census Tract 4011.01	1,836	2,481	74.0%	440	296	851	109	140
Census Tract 4302	929	1,258	73.8%	193	26	438	34	238
Census Tract 4203.01	800	1,087	73.6%	60	241	432	59	8
Census Tract 4024.03	663	902	73.5%	64	103	380	61	55
Census Tract 4914.01	1,797	2,446	73.5%	560	842	389	0	6
Census Tract 4023.05	792	1,090	72.7%	149	359	163	54	67
Census Tract 4014	413	569	72.6%	6	57	268	13	69
Census Tract 4307	1,493	2,088	71.5%	301	269	683	108	132
Census Tract 4111.02	888	1,243	71.4%	221	129	313	76	149
Census Tract 4015.05	1,125	1,594	70.6%	133	772	145	41	34
Census Tract 4903.03	972	1,379	70.5%	221	422	153	82	94