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Lead Contamination

Lead in Iowa Drinking Water

Ranked by 90th percentile lead level (ppb) · Data from EPA SDWIS & UCMR

430
Cities Tested
2
Exceeds Limit
0%
% Exceeds Limit
2.3 ppb
State Avg
▼ 2% vs national
vs National
297
Health Violations
Analysis

Lead in Iowa: what the data shows

Iowa has 430 cities with lead monitoring data, with no cities exceeding the EPA action level of 15 ppb. The state average 90th percentile lead level is 2.3 ppb, compared to 3.3 ppb nationally — better than the national average. 2 cities exceed the 15 ppb action level. High lead levels in tap water typically indicate aging infrastructure — lead service lines, lead solder in older plumbing, or lead-containing brass fixtures. There is no safe level of lead exposure for children. The 90th percentile measurement means that 90% of tap samples in a city are at or below the reported level. This is the standard EPA uses under the Lead and Copper Rule to determine if a water system needs to take corrective action. An NSF 53-certified pitcher or under-sink filter can effectively remove lead at the tap.

Comparison

Cities exceeding 15 ppb EPA Action Level

Iowa
0%
2 of 430 cities
← ▼ 2% below national rate (better)
National avg
2%
352 of 15325 cities
City Map

Lead data across Iowa

Each dot is a city, colored by overall water quality grade. Cities with lead levels above the 15 ppb EPA action level are highlighted. Size reflects population served.

Worst Offenders

Top 10 cities by lead level in Iowa

Highest Lead levels (ppb)

  1. 1 C+ Victor 18.2 ppb Yes 875
  2. 2 B Scranton 17.0 ppb Yes 504
  3. 3 B+ Reinbeck 14.8 ppb 2K
  4. 4 B+ Parkersburg 14.6 ppb 2K
  5. 5 C- Davenport 14.0 ppb 148K
  6. 6 B+ Elkader 14.0 ppb 1K
  7. 7 B+ Osage 11.4 ppb 4K
  8. 8 B+ Delhi 11.0 ppb 509
  9. 9 B Jewell 10.0 ppb 1K
  10. 10 A- Postville 9.9 ppb 3K
All Cities

All Iowa cities ranked by lead level

# City Level Level Exceeds? Violations Grade
1 Victor 18.2 ppb
Yes 1
C+
2 Scranton 17.0 ppb
Yes 6
B
3 Reinbeck 14.8 ppb
No 1
B+
4 Parkersburg 14.6 ppb
No 0
B+
5 Davenport 14.0 ppb
No 2
C-
6 Elkader 14.0 ppb
No 0
B+
7 Osage 11.4 ppb
No 9
B+
8 Delhi 11.0 ppb
No 0
B+
9 Jewell 10.0 ppb
No 0
B
10 Postville 9.9 ppb
No 0
A-
11 Belle Plaine 9.8 ppb
No 2
B+
12 Whittemore 9.5 ppb
No 0
A-
13 Decorah 9.4 ppb
No 11
B+
14 Iowa Falls 9.0 ppb
No 6
B
15 Elgin 8.5 ppb
No 0
A-
16 Arcadia 8.4 ppb
No 0
A
17 Carroll 8.0 ppb
No 0
B
18 Stanwood 8.0 ppb
No 0
B+
19 Sidney 7.9 ppb
No 1
B
20 Knoxville 7.8 ppb
No 2
B
21 Albia 7.7 ppb
No 5
A
22 Allison 7.6 ppb
No 0
A-
23 Holstein 7.3 ppb
No 7
A-
24 Independence 7.1 ppb
No 4
A
25 Maquoketa 7.1 ppb
No 18
A-
26 Creston 7.0 ppb
No 9
A-
27 Slater 7.0 ppb
No 2
B+
28 Gowrie 7.0 ppb
No 5
A-
29 Clermont 6.8 ppb
No 4
B+
30 Sloan 6.6 ppb
No 0
A
31 Sioux Rapids 6.5 ppb
No 13
B+
32 Charles City 6.2 ppb
No 0
A-
33 Hospers 6.1 ppb
No 5
B+
34 Keokuk 6.0 ppb
No 0
A-
35 Osceola 6.0 ppb
No 21
B
36 Wilton 6.0 ppb
No 0
A-
37 Clarion 6.0 ppb
No 1
A-
38 Marengo 6.0 ppb
No 12
B-
39 Durant 6.0 ppb
No 2
A
40 Manson 6.0 ppb
No 7
A-
41 Nora Springs 6.0 ppb
No 1
B+
42 Gladbrook 6.0 ppb
No 1
A
43 Zearing 6.0 ppb
No 2
A-
44 Titonka 6.0 ppb
No 0
A-
45 Keystone 5.9 ppb
No 7
A-
46 Montezuma 5.8 ppb
No 0
A-
47 Coggon 5.8 ppb
No 0
A-
48 Melbourne 5.7 ppb
No 1
A
49 Altoona 5.6 ppb
No 20
B+
50 Greene 5.5 ppb
No 0
A-
51 Janesville 5.4 ppb
No 5
A
52 Washington 5.2 ppb
No 13
B+
53 Colfax 5.1 ppb
No 2
A-
54 Ossian 5.1 ppb
No 0
A-
55 Elma 5.1 ppb
No 0
A
56 Earlville 5.0 ppb
No 15
A-
57 Des Moines 5.0 ppb
No 7
B+
58 Algona 5.0 ppb
No 14
B
59 Forest City 5.0 ppb
No 8
B
60 Solon 5.0 ppb
No 157
F
61 Waukon 5.0 ppb
No 0
A
62 Center Point 5.0 ppb
No 3
B
63 Treynor 5.0 ppb
No 0
A-
64 Ruthven 5.0 ppb
No 0
A-
65 Walker 5.0 ppb
No 0
A
66 Minden 5.0 ppb
No 3
A-
67 May City 4.9 ppb
No 0
A-
68 Tama 4.8 ppb
No 1
A-
69 Guthrie Center 4.8 ppb
No 1
A-
70 Shell Rock 4.6 ppb
No 0
A-
71 Fayette 4.5 ppb
No 0
A-
72 Conrad 4.5 ppb
No 1
A
73 Sioux Center 4.4 ppb
No 0
A-
74 Neola 4.4 ppb
No 8
B+
75 Nashua 4.3 ppb
No 0
A-
76 Lawton 4.3 ppb
No 3
A
77 Oelwein 4.2 ppb
No 2
A
78 Sergeant Bluff 4.0 ppb
No 3
A
79 Tiffin 4.0 ppb
No 2
B+
80 Hampton 4.0 ppb
No 10
A-
81 Ely 4.0 ppb
No 0
A
82 Lake City 4.0 ppb
No 0
A
83 Woodbine 4.0 ppb
No 3
B+
84 Lake Park 4.0 ppb
No 3
A
85 Mechanicsville 4.0 ppb
No 0
A-
86 Maxwell 4.0 ppb
No 0
A-
87 Alburnett 4.0 ppb
No 3
A
88 Doon 4.0 ppb
No 32
B+
89 Epworth 3.9 ppb
No 0
A
90 Battle Creek 3.8 ppb
No 13
A-
91 Merrill 3.7 ppb
No 4
A
92 Calmar 3.7 ppb
No 4
A
93 Edgewood 3.7 ppb
No 1
A-
94 Clear Lake 3.6 ppb
No 2
A-
95 Manchester 3.6 ppb
No 1
A
96 Akron 3.6 ppb
No 4
A-
97 Hartley 3.5 ppb
No 0
A+
98 Monona 3.5 ppb
No 0
A-
99 Winthrop 3.5 ppb
No 0
A
100 Everly 3.5 ppb
No 26
A-
101 Aplington 3.4 ppb
No 1
A-
102 Seymour 3.4 ppb
No 0
A-
103 Fonda 3.4 ppb
No 1
B+
104 Hinton 3.3 ppb
No 1
A
105 Rock Rapids 3.3 ppb
No 12
B+
106 Primghar 3.3 ppb
No 0
A-
107 Wellsburg 3.3 ppb
No 16
A
108 Hudson 3.2 ppb
No 0
A-
109 Ackley 3.2 ppb
No 1
A-
110 Wheatland 3.2 ppb
No 5
A-
111 Grinnell 3.1 ppb
No 13
D+
112 Olin 3.1 ppb
No 2
A
113 Iowa City 3.0 ppb
No 171
F
114 Boone 3.0 ppb
No 9
B
115 Monticello 3.0 ppb
No 22
D
116 Carter Lake 3.0 ppb
No 6
A-
117 Williamsburg 3.0 ppb
No 3
A-
118 Eldora 3.0 ppb
No 0
A
119 West Union 3.0 ppb
No 3
A
120 Ogden 3.0 ppb
No 3
A-
121 Lake Mills 3.0 ppb
No 3
A
122 Leon 3.0 ppb
No 20
A-
123 Central City 3.0 ppb
No 3
A
124 Dunlap 3.0 ppb
No 3
A-
125 Griswold 3.0 ppb
No 2
A-
126 Rockford 3.0 ppb
No 1
A+
127 Grand Junction 3.0 ppb
No 2
A
128 Dumont 3.0 ppb
No 2
A-
129 Charter Oak 3.0 ppb
No 3
A
130 Mason City 2.9 ppb
No 18
A-
131 Remsen 2.8 ppb
No 2
A-
132 Red Oak 2.7 ppb
No 9
A-
133 Chariton 2.7 ppb
No 64
B-
134 Kanawha 2.5 ppb
No 0
A-
135 Corning 2.5 ppb
No 2
A-
136 Mount Ayr 2.4 ppb
No 10
A
137 Pleasantville 2.4 ppb
No 2
A
138 Larchwood 2.4 ppb
No 1
A
139 Princeton 2.4 ppb
No 18
B
140 Sully 2.4 ppb
No 8
A
141 Garnavillo 2.4 ppb
No 0
A
142 Wyoming 2.4 ppb
No 0
A
143 Wall Lake 2.3 ppb
No 4
A-
144 Rockwell 2.3 ppb
No 4
A
145 Le Mars 2.2 ppb
No 2
A
146 Mcgregor 2.2 ppb
No 6
B+
147 Boyden 2.2 ppb
No 0
A-
148 Clarksville 2.2 ppb
No 1
A
149 Glidden 2.1 ppb
No 0
A-
150 Odebolt 2.1 ppb
No 11
A
151 Inwood 2.1 ppb
No 2
A
152 Newhall 2.1 ppb
No 2
A-
153 Pomeroy 2.1 ppb
No 1
A-
154 What Cheer 2.1 ppb
No 7
A
155 Sioux City 2.0 ppb
No 14
B
156 West Des Moines 2.0 ppb
No 1
B+
157 Marshalltown 2.0 ppb
No 4
A-
158 Fort Dodge 2.0 ppb
No 19
D+
159 Johnston 2.0 ppb
No 6
B+
160 Clinton 2.0 ppb
No 0
A-
161 Minburn 2.0 ppb
No 6
A-
162 Atlantic 2.0 ppb
No 0
A-
163 Rock Valley 2.0 ppb
No 13
B+
164 Estherville 2.0 ppb
No 0
A
165 Sheldon 2.0 ppb
No 0
A
166 Camanche 2.0 ppb
No 0
A
167 Panora 2.0 ppb
No 26
A-
168 Milford 2.0 ppb
No 0
A
169 Garner 2.0 ppb
No 0
A
170 Onawa 2.0 ppb
No 0
A-
171 Fairfax 2.0 ppb
No 2
A-
172 West Branch 2.0 ppb
No 0
B
173 Greenfield 2.0 ppb
No 12
A
174 Atkins 2.0 ppb
No 6
A-
175 Stuart 2.0 ppb
No 17
A
176 Earlham 2.0 ppb
No 12
A
177 Logan 2.0 ppb
No 0
A
178 Lone Tree 2.0 ppb
No 1
B+
179 Manly 2.0 ppb
No 1
A-
180 Strawberry Point 2.0 ppb
No 1
A
181 Arnolds Park 2.0 ppb
No 0
A-
182 George 2.0 ppb
No 19
A-
183 Riverside 2.0 ppb
No 6
A-
184 Clarence 2.0 ppb
No 3
A
185 Danville 2.0 ppb
No 21
A-
186 Hills 2.0 ppb
No 0
A-
187 Cambridge 2.0 ppb
No 1
A-
188 Adair 2.0 ppb
No 13
A
189 Lowden 2.0 ppb
No 0
A-
190 Alden 2.0 ppb
No 1
A
191 Manilla 2.0 ppb
No 0
A
192 Whiting 2.0 ppb
No 0
A
193 Albert City 2.0 ppb
No 0
A
194 Fontanelle 2.0 ppb
No 0
A-
195 Goldfield 2.0 ppb
No 0
A
196 Brighton 2.0 ppb
No 0
A
197 Swea City 2.0 ppb
No 0
A-
198 Anthon 2.0 ppb
No 0
A
199 Delmar 2.0 ppb
No 1
A
200 Richland 2.0 ppb
No 5
A
201 Ireton 1.9 ppb
No 4
A-
202 Jesup 1.9 ppb
No 0
A
203 Sigourney 1.9 ppb
No 0
A
204 Waterloo 1.8 ppb
No 3
A-
205 Clarinda 1.8 ppb
No 48
B
206 Grundy Center 1.8 ppb
No 1
A
207 Bloomfield 1.8 ppb
No 41
A-
208 Hull 1.8 ppb
No 1
A-
209 Kellogg 1.8 ppb
No 1
A
210 Manning 1.7 ppb
No 4
A-
211 Dyersville 1.7 ppb
No 23
A
212 Truro 1.7 ppb
No 7
A
213 Cedar Rapids 1.6 ppb
No 31
D
214 Audubon 1.6 ppb
No 2
A
215 Guttenberg 1.6 ppb
No 0
A
216 Palo 1.6 ppb
No 4
A
217 Fairbank 1.6 ppb
No 7
A
218 Blue Grass 1.6 ppb
No 43
C
219 Elkhart 1.6 ppb
No 0
A-
220 Readlyn 1.6 ppb
No 0
A-
221 Saint Ansgar 1.6 ppb
No 2
A
222 Waverly 1.5 ppb
No 2
B+
223 Cherokee 1.5 ppb
No 2
A-
224 Carlisle 1.5 ppb
No 0
A-
225 Marcus 1.5 ppb
No 10
A
226 Aurelia 1.5 ppb
No 0
A
227 Preston 1.5 ppb
No 1
A
228 Long Grove 1.5 ppb
No 6
A
229 Rolfe 1.5 ppb
No 0
A+
230 Cedar Falls 1.4 ppb
No 4
A-
231 Melcher-Dallas 1.4 ppb
No 3
A
232 Marion 1.3 ppb
No 6
A-
233 Oskaloosa 1.3 ppb
No 11
A-
234 Bondurant 1.3 ppb
No 1
A
235 Polk City 1.3 ppb
No 0
B+
236 Farley 1.3 ppb
No 7
A
237 Oakland 1.3 ppb
No 0
A
238 Malvern 1.3 ppb
No 2
B+
239 Essex 1.3 ppb
No 15
A-
240 Hopkinton 1.3 ppb
No 0
A
241 Early 1.3 ppb
No 23
B+
242 Ottumwa 1.2 ppb
No 6
B+
243 Denison 1.2 ppb
No 0
A
244 Evansdale 1.2 ppb
No 0
A+
245 New Hampton 1.2 ppb
No 0
A
246 Ida Grove 1.2 ppb
No 2
A-
247 Monroe 1.2 ppb
No 2
A
248 Lenox 1.2 ppb
No 0
A
249 Fredericksburg 1.1 ppb
No 0
A
250 Huxley 1.1 ppb
No 1
A
251 Emmetsburg 1.1 ppb
No 1
A-
252 New London 1.1 ppb
No 6
A
253 Pocahontas 1.1 ppb
No 5
A
254 Kingsley 1.1 ppb
No 3
A-
255 Lake View 1.1 ppb
No 1
A
256 Mapleton 1.1 ppb
No 12
A
257 Le Grand 1.1 ppb
No 2
A
258 Newell 1.1 ppb
No 0
A
259 Colo 1.1 ppb
No 0
A
260 Sutherland 1.1 ppb
No 3
A-
261 Dike 1.1 ppb
No 2
A
262 Burlington 1.0 ppb
No 7
B+
263 Eldridge 1.0 ppb
No 9
B+
264 Perry 1.0 ppb
No 3
A
265 Spirit Lake 1.0 ppb
No 4
A
266 Winterset 1.0 ppb
No 20
A-
267 Harlan 1.0 ppb
No 0
A-
268 Humboldt 1.0 ppb
No 1
A
269 Mount Vernon 1.0 ppb
No 0
A
270 Cresco 1.0 ppb
No 0
A+
271 Tipton 1.0 ppb
No 0
A-
272 Sibley 1.0 ppb
No 0
A-
273 Kalona 1.0 ppb
No 3
B+
274 Lisbon 1.0 ppb
No 21
B+
275 La Porte City 1.0 ppb
No 2
A
276 Wapello 1.0 ppb
No 12
B+
277 Sheffield 1.0 ppb
No 2
A-
278 Anita 1.0 ppb
No 1
A
279 Wayland 1.0 ppb
No 4
A
280 Hamburg 1.0 ppb
No 0
A
281 Armstrong 1.0 ppb
No 1
B+
282 Schleswig 1.0 ppb
No 14
A
283 Okoboji 1.0 ppb
No 1
A
284 West Bend 1.0 ppb
No 6
A+
285 Dakota City 1.0 ppb
No 0
A
286 Carson 1.0 ppb
No 2
A
287 Murray 1.0 ppb
No 12
A
288 Elk Horn 1.0 ppb
No 0
B+
289 Badger 1.0 ppb
No 6
A
290 Radcliffe 1.0 ppb
No 3
A
291 Ellsworth 1.0 ppb
No 9
A-
292 South Amana 0.9 ppb
No 1
A-
293 Moville 0.9 ppb
No 11
A-
294 State Center 0.9 ppb
No 8
A
295 Eldon 0.9 ppb
No 10
A-
296 Moravia 0.9 ppb
No 0
B+
297 Alton 0.9 ppb
No 1
A
298 Glenwood 0.8 ppb
No 13
A+
299 Jefferson 0.8 ppb
No 2
A
300 Mediapolis 0.8 ppb
No 5
A-
301 Correctionville 0.8 ppb
No 1
A
302 Collins 0.8 ppb
No 3
A
303 Pella 0.7 ppb
No 4
A-
304 Avoca 0.7 ppb
No 6
A
305 Schaller 0.7 ppb
No 8
A
306 Lakeside 0.7 ppb
No 0
A
307 New Hartford 0.7 ppb
No 1
A
308 Luther 0.6 ppb
No 8
A
309 Lamoni 0.6 ppb
No 5
B+
310 Denver 0.6 ppb
No 2
A
311 Brooklyn 0.6 ppb
No 10
A+
312 Villisca 0.6 ppb
No 1
A
313 Shenandoah 0.5 ppb
No 2
A
314 Madrid 0.5 ppb
No 4
A-
315 Peosta 0.5 ppb
No 7
A-
316 Bellevue 0.5 ppb
No 18
A-
317 De Soto 0.5 ppb
No 1
B
318 Spencer 0.3 ppb
No 1
A
319 Indianola 0.2 ppb
No 7
A-
320 Ames 0.0 ppb
No 15
B+
321 Ankeny 0.0 ppb
No 15
B
322 Council Bluffs 0.0 ppb
No 8
B+
323 Dubuque 0.0 ppb
No 30
F
324 Urbandale 0.0 ppb
No 0
B+
325 Centerville 0.0 ppb
No 4
B+
326 Waukee 0.0 ppb
No 13
A-
327 Muscatine 0.0 ppb
No 46
F
328 Coralville 0.0 ppb
No 15
B
329 North Liberty 0.0 ppb
No 29
B-
330 Clive 0.0 ppb
No 1
A
331 Newton 0.0 ppb
No 2
A
332 Grimes 0.0 ppb
No 13
A-
333 Norwalk 0.0 ppb
No 1
A
334 Storm Lake 0.0 ppb
No 1
A-
335 Fort Madison 0.0 ppb
No 6
A
336 Fairfield 0.0 ppb
No 15
A-
337 Mount Pleasant 0.0 ppb
No 2
A
338 Webster City 0.0 ppb
No 3
A
339 Hiawatha 0.0 ppb
No 12
B-
340 Nevada 0.0 ppb
No 7
A
341 Adel 0.0 ppb
No 2
A
342 Orange City 0.0 ppb
No 0
A-
343 Asbury 0.0 ppb
No 0
A+
344 Anamosa 0.0 ppb
No 5
B-
345 Vinton 0.0 ppb
No 4
A
346 West Burlington 0.0 ppb
No 17
B+
347 West Liberty 0.0 ppb
No 6
A
348 Eagle Grove 0.0 ppb
No 0
A
349 Story City 0.0 ppb
No 0
A
350 Missouri Valley 0.0 ppb
No 6
C+
351 Hawarden 0.0 ppb
No 4
A
352 Brooks 0.0 ppb
No 6
A+
353 Rockwell City 0.0 ppb
No 6
B+
354 Mitchellville 0.0 ppb
No 1
A
355 Belmond 0.0 ppb
No 0
A
356 Toledo 0.0 ppb
No 8
A
357 Cascade 0.0 ppb
No 0
A
358 Alta 0.0 ppb
No 1
A-
359 Northwood 0.0 ppb
No 3
A
360 Britt 0.0 ppb
No 0
B+
361 Sac City 0.0 ppb
No 0
A
362 Woodward 0.0 ppb
No 17
B
363 Sumner 0.0 ppb
No 0
A+
364 Dallas Center 0.0 ppb
No 0
A
365 Columbus Junction 0.0 ppb
No 0
A-
366 Prairie City 0.0 ppb
No 3
A
367 Granger 0.0 ppb
No 1
A-
368 Corydon 0.0 ppb
No 0
A-
369 Traer 0.0 ppb
No 0
A
370 Urbana 0.0 ppb
No 0
A-
371 Walcott 0.0 ppb
No 0
A
372 Wellman 0.0 ppb
No 24
A-
373 Bedford 0.0 ppb
No 19
A-
374 Roland 0.0 ppb
No 4
A
375 Sanborn 0.0 ppb
No 0
A
376 Decatur City 0.0 ppb
No 3
A
377 New Sharon 0.0 ppb
No 0
A
378 Laurens 0.0 ppb
No 0
A
379 Coon Rapids 0.0 ppb
No 0
A
380 Dysart 0.0 ppb
No 0
A-
381 Springville 0.0 ppb
No 0
A
382 Middle Amana 0.0 ppb
No 1
B+
383 Gilbert 0.0 ppb
No 1
B+
384 Buffalo 0.0 ppb
No 12
A-
385 Tripoli 0.0 ppb
No 1
A-
386 Oxford 0.0 ppb
No 24
C+
387 Van Meter 0.0 ppb
No 6
A-
388 Elk Run Heights 0.0 ppb
No 1
A
389 North English 0.0 ppb
No 0
A
390 Winfield 0.0 ppb
No 0
A
391 Tabor 0.0 ppb
No 0
A-
392 Baxter 0.0 ppb
No 0
A-
393 Paullina 0.0 ppb
No 3
A
394 Lansing 0.0 ppb
No 3
A
395 Keosauqua 0.0 ppb
No 5
A
396 Shellsburg 0.0 ppb
No 12
A-
397 West Point 0.0 ppb
No 13
A-
398 Graettinger 0.0 ppb
No 4
A
399 Keota 0.0 ppb
No 4
A
400 Donnellson 0.0 ppb
No 20
B+
401 Hubbard 0.0 ppb
No 9
A
402 Buffalo Center 0.0 ppb
No 0
A
403 Dunkerton 0.0 ppb
No 6
A-
404 Riceville 0.0 ppb
No 0
A
405 Gilbertville 0.0 ppb
No 0
A-
406 Milo 0.0 ppb
No 4
A
407 Van Horne 0.0 ppb
No 1
A
408 Crescent 0.0 ppb
No 6
A
409 Dayton 0.0 ppb
No 7
A
410 Walnut 0.0 ppb
No 10
A
411 Exira 0.0 ppb
No 1
A-
412 Morning Sun 0.0 ppb
No 1
A
413 Redfield 0.0 ppb
No 0
A
414 Blairstown 0.0 ppb
No 3
A-
415 Montrose 0.0 ppb
No 1
A
416 Hedrick 0.0 ppb
No 0
A-
417 Shelby 0.0 ppb
No 3
A-
418 Ventura 0.0 ppb
No 0
A-
419 Bancroft 0.0 ppb
No 0
A+
420 Stratford 0.0 ppb
No 6
A-
421 Dexter 0.0 ppb
No 0
A
422 Agency 0.0 ppb
No 0
A-
423 Grand Mound 0.0 ppb
No 0
A
424 Moulton 0.0 ppb
No 1
A-
425 Farmington 0.0 ppb
No 20
A
426 Gilman 0.0 ppb
No 7
A+
427 Dows 0.0 ppb
No 3
A
428 Ainsworth 0.0 ppb
No 1
A
429 Sabula 0.0 ppb
No 1
A
430 Breda 0.0 ppb
No 0
A
FAQ

Frequently asked questions about lead in Iowa

Is lead in Iowa tap water a concern?

Yes — 2 of 430 cities with lead data exceed the EPA action level of 15 ppb. The state average is 2.3 ppb. Even below the action level, lead poses health risks especially for children and pregnant women. If your home was built before 1986, consider testing your tap water directly.

How can I reduce lead exposure from Iowa tap water?

Use an NSF 53-certified water filter, which is specifically certified to reduce lead. Run your cold tap for 30 seconds before drinking or cooking, especially if water has been sitting in pipes for hours. Never use hot tap water for cooking or making baby formula, as heat increases lead leaching from pipes.

Which Iowa cities have the highest lead levels?

The cities with the highest 90th percentile lead levels in Iowa are: Victor (18.2 ppb), Scranton (17.0 ppb), Reinbeck (14.8 ppb), Parkersburg (14.6 ppb), Davenport (14.0 ppb). See the full ranked table above.

More contaminants

Other contaminants in Iowa

PFAS in Iowa
Ranked by compounds detected
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Copper in Iowa
Ranked by 90th percentile level (mg/L)
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HAA5 in Iowa
Ranked by average concentration (µg/L)
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Chromium-6 in Iowa
Ranked by max detected (µg/L)
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Arsenic in Iowa
Ranked by violation count
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Nitrate in Iowa
Ranked by violation count
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Strontium in Iowa
Ranked by max detected (µg/L)
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1,4-Dioxane in Iowa
Ranked by max detected (µg/L)
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Manganese in Iowa
Ranked by max detected (µg/L)
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Vanadium in Iowa
Ranked by max detected (µg/L)
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Chlorate in Iowa
Ranked by max detected (µg/L)
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Molybdenum in Iowa
Ranked by max detected (µg/L)
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Cobalt in Iowa
Ranked by max detected (µg/L)
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Lithium in Iowa
Ranked by max detected (µg/L)
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NDMA in Iowa
Ranked by max detected (ng/L)
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Perchlorate in Iowa
Ranked by max detected (µg/L)
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All states

Lead in drinking water by state

AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming
← Lead contamination overview Explore Iowa water quality → National Lead map →