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Lead Contamination

Lead in Iowa Drinking Water

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

436
Cities Tested
2
Exceeds Limit
0%
% Exceeds Limit
2.3 ppb
State Avg
▼ 2% vs national
vs National
303
Health Violations
Analysis

Lead in Iowa: what the data shows

Iowa has 436 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 436 cities
← ▼ 2% below national rate (better)
National avg
2%
378 of 15681 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 Doon 4.0 ppb
No 32
B+
82 Ely 4.0 ppb
No 0
A
83 Lake City 4.0 ppb
No 0
A
84 Woodbine 4.0 ppb
No 3
B+
85 Lake Park 4.0 ppb
No 3
A
86 Mechanicsville 4.0 ppb
No 0
A-
87 Maxwell 4.0 ppb
No 0
A-
88 Alburnett 4.0 ppb
No 3
A
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 Carter Lake 3.0 ppb
No 6
A-
116 Monticello 3.0 ppb
No 22
D
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 Walford 3.0 ppb
No 7
D
128 Grand Junction 3.0 ppb
No 2
A
129 Swisher 3.0 ppb
No 37
F
130 Dumont 3.0 ppb
No 2
A-
131 Charter Oak 3.0 ppb
No 3
A
132 Mason City 2.9 ppb
No 18
A-
133 Remsen 2.8 ppb
No 2
A-
134 Red Oak 2.7 ppb
No 9
A-
135 Chariton 2.7 ppb
No 64
B-
136 Bettendorf 2.6 ppb
No 11
C+
137 Kanawha 2.5 ppb
No 0
A-
138 Corning 2.5 ppb
No 2
A-
139 Pleasantville 2.4 ppb
No 2
A
140 Mount Ayr 2.4 ppb
No 10
A
141 Princeton 2.4 ppb
No 18
B
142 Larchwood 2.4 ppb
No 1
A
143 Sully 2.4 ppb
No 8
A
144 Garnavillo 2.4 ppb
No 0
A
145 Wyoming 2.4 ppb
No 0
A
146 Wall Lake 2.3 ppb
No 4
A-
147 Rockwell 2.3 ppb
No 4
A
148 Le Mars 2.2 ppb
No 2
A
149 Mcgregor 2.2 ppb
No 6
B+
150 Boyden 2.2 ppb
No 0
A-
151 Clarksville 2.2 ppb
No 1
A
152 Glidden 2.1 ppb
No 0
A-
153 Odebolt 2.1 ppb
No 11
A
154 Inwood 2.1 ppb
No 2
A
155 Newhall 2.1 ppb
No 2
A-
156 Pomeroy 2.1 ppb
No 1
A-
157 What Cheer 2.1 ppb
No 7
A
158 Sioux City 2.0 ppb
No 14
B
159 West Des Moines 2.0 ppb
No 1
B+
160 Marshalltown 2.0 ppb
No 4
A-
161 Fort Dodge 2.0 ppb
No 19
D+
162 Johnston 2.0 ppb
No 6
B+
163 Clinton 2.0 ppb
No 0
A-
164 Minburn 2.0 ppb
No 6
A-
165 Atlantic 2.0 ppb
No 0
A-
166 Rock Valley 2.0 ppb
No 13
B+
167 Estherville 2.0 ppb
No 0
A
168 Sheldon 2.0 ppb
No 0
A
169 Camanche 2.0 ppb
No 0
A
170 Panora 2.0 ppb
No 26
A-
171 Greenfield 2.0 ppb
No 12
A
172 Milford 2.0 ppb
No 0
A
173 Garner 2.0 ppb
No 0
A
174 Fairfax 2.0 ppb
No 2
A-
175 West Branch 2.0 ppb
No 0
B
176 Onawa 2.0 ppb
No 0
A-
177 Atkins 2.0 ppb
No 6
A-
178 Stuart 2.0 ppb
No 17
A
179 Earlham 2.0 ppb
No 12
A
180 Logan 2.0 ppb
No 0
A
181 Lone Tree 2.0 ppb
No 1
B+
182 Manly 2.0 ppb
No 1
A-
183 Riverside 2.0 ppb
No 6
A-
184 Strawberry Point 2.0 ppb
No 1
A
185 Arnolds Park 2.0 ppb
No 0
A-
186 George 2.0 ppb
No 19
A-
187 Clarence 2.0 ppb
No 3
A
188 Danville 2.0 ppb
No 21
A-
189 Hills 2.0 ppb
No 0
A-
190 Cambridge 2.0 ppb
No 1
A-
191 Adair 2.0 ppb
No 13
A
192 Lowden 2.0 ppb
No 0
A-
193 Alden 2.0 ppb
No 1
A
194 Manilla 2.0 ppb
No 0
A
195 Whiting 2.0 ppb
No 0
A
196 Albert City 2.0 ppb
No 0
A
197 Fontanelle 2.0 ppb
No 0
A-
198 Goldfield 2.0 ppb
No 0
A
199 Brighton 2.0 ppb
No 0
A
200 Swea City 2.0 ppb
No 0
A-
201 Anthon 2.0 ppb
No 0
A
202 Delmar 2.0 ppb
No 1
A
203 Richland 2.0 ppb
No 5
A
204 Ireton 1.9 ppb
No 4
A-
205 Jesup 1.9 ppb
No 0
A
206 Sigourney 1.9 ppb
No 0
A
207 Waterloo 1.8 ppb
No 3
A-
208 Clarinda 1.8 ppb
No 48
B
209 Grundy Center 1.8 ppb
No 1
A
210 Bloomfield 1.8 ppb
No 41
A-
211 Hull 1.8 ppb
No 1
A-
212 Kellogg 1.8 ppb
No 1
A
213 Manning 1.7 ppb
No 4
A-
214 Dyersville 1.7 ppb
No 23
A
215 Truro 1.7 ppb
No 7
A
216 Cedar Rapids 1.6 ppb
No 31
D
217 Audubon 1.6 ppb
No 2
A
218 Guttenberg 1.6 ppb
No 0
A
219 Blue Grass 1.6 ppb
No 43
C
220 Palo 1.6 ppb
No 4
A
221 Fairbank 1.6 ppb
No 7
A
222 Elkhart 1.6 ppb
No 0
A-
223 Readlyn 1.6 ppb
No 0
A-
224 Saint Ansgar 1.6 ppb
No 2
A
225 Waverly 1.5 ppb
No 2
B+
226 Cherokee 1.5 ppb
No 2
A-
227 Carlisle 1.5 ppb
No 0
A-
228 Marcus 1.5 ppb
No 10
A
229 Long Grove 1.5 ppb
No 6
A
230 Aurelia 1.5 ppb
No 0
A
231 Preston 1.5 ppb
No 1
A
232 Rolfe 1.5 ppb
No 0
A+
233 Hazleton 1.4 ppb
No 1
A-
234 Cedar Falls 1.4 ppb
No 4
A-
235 Melcher-Dallas 1.4 ppb
No 3
A
236 Marion 1.3 ppb
No 6
A-
237 Oskaloosa 1.3 ppb
No 11
A-
238 Bondurant 1.3 ppb
No 1
A
239 Polk City 1.3 ppb
No 0
B+
240 Farley 1.3 ppb
No 7
A
241 Oakland 1.3 ppb
No 0
A
242 Malvern 1.3 ppb
No 2
B+
243 Essex 1.3 ppb
No 15
A-
244 Hopkinton 1.3 ppb
No 0
A
245 Early 1.3 ppb
No 23
B+
246 Ottumwa 1.2 ppb
No 6
B+
247 Denison 1.2 ppb
No 0
A
248 Evansdale 1.2 ppb
No 0
A+
249 New Hampton 1.2 ppb
No 0
A
250 Ida Grove 1.2 ppb
No 2
A-
251 Monroe 1.2 ppb
No 2
A
252 Lenox 1.2 ppb
No 0
A
253 Fredericksburg 1.1 ppb
No 0
A
254 Huxley 1.1 ppb
No 1
A
255 Emmetsburg 1.1 ppb
No 1
A-
256 Sutherland 1.1 ppb
No 3
A-
257 New London 1.1 ppb
No 6
A
258 Pocahontas 1.1 ppb
No 5
A
259 Kingsley 1.1 ppb
No 3
A-
260 Lake View 1.1 ppb
No 1
A
261 Mapleton 1.1 ppb
No 12
A
262 Le Grand 1.1 ppb
No 2
A
263 Newell 1.1 ppb
No 0
A
264 Colo 1.1 ppb
No 0
A
265 Dike 1.1 ppb
No 2
A
266 Burlington 1.0 ppb
No 7
B+
267 Eldridge 1.0 ppb
No 9
B+
268 Perry 1.0 ppb
No 3
A
269 Spirit Lake 1.0 ppb
No 4
A
270 Winterset 1.0 ppb
No 20
A-
271 Harlan 1.0 ppb
No 0
A-
272 Humboldt 1.0 ppb
No 1
A
273 Mount Vernon 1.0 ppb
No 0
A
274 Cresco 1.0 ppb
No 0
A+
275 Tipton 1.0 ppb
No 0
A-
276 Sibley 1.0 ppb
No 0
A-
277 Kalona 1.0 ppb
No 3
B+
278 Lisbon 1.0 ppb
No 21
B+
279 La Porte City 1.0 ppb
No 2
A
280 Wapello 1.0 ppb
No 12
B+
281 Sheffield 1.0 ppb
No 2
A-
282 Anita 1.0 ppb
No 1
A
283 Wayland 1.0 ppb
No 4
A
284 Armstrong 1.0 ppb
No 1
B+
285 Hamburg 1.0 ppb
No 0
A
286 Schleswig 1.0 ppb
No 14
A
287 Okoboji 1.0 ppb
No 1
A
288 West Bend 1.0 ppb
No 6
A+
289 Dakota City 1.0 ppb
No 0
A
290 Carson 1.0 ppb
No 2
A
291 Murray 1.0 ppb
No 12
A
292 Elk Horn 1.0 ppb
No 0
B+
293 Badger 1.0 ppb
No 6
A
294 Radcliffe 1.0 ppb
No 3
A
295 Ellsworth 1.0 ppb
No 9
A-
296 South Amana 0.9 ppb
No 1
A-
297 Moville 0.9 ppb
No 11
A-
298 State Center 0.9 ppb
No 8
A
299 Eldon 0.9 ppb
No 10
A-
300 Moravia 0.9 ppb
No 0
B+
301 Alton 0.9 ppb
No 1
A
302 Glenwood 0.8 ppb
No 13
A+
303 Jefferson 0.8 ppb
No 2
A
304 Mediapolis 0.8 ppb
No 5
A-
305 Correctionville 0.8 ppb
No 1
A
306 Collins 0.8 ppb
No 3
A
307 Pella 0.7 ppb
No 4
A-
308 Avoca 0.7 ppb
No 6
A
309 Schaller 0.7 ppb
No 8
A
310 Lakeside 0.7 ppb
No 0
A
311 New Hartford 0.7 ppb
No 1
A
312 Brooklyn 0.6 ppb
No 10
A+
313 Luther 0.6 ppb
No 8
A
314 Norway 0.6 ppb
No 1
A-
315 Lamoni 0.6 ppb
No 5
B+
316 Denver 0.6 ppb
No 2
A
317 Villisca 0.6 ppb
No 1
A
318 Shenandoah 0.5 ppb
No 2
A
319 Madrid 0.5 ppb
No 4
A-
320 Peosta 0.5 ppb
No 7
A-
321 Bellevue 0.5 ppb
No 18
A-
322 De Soto 0.5 ppb
No 1
B
323 Spencer 0.3 ppb
No 1
A
324 Indianola 0.2 ppb
No 7
A-
325 Ames 0.0 ppb
No 15
B+
326 Ankeny 0.0 ppb
No 15
B
327 Council Bluffs 0.0 ppb
No 8
B+
328 Dubuque 0.0 ppb
No 30
F
329 Urbandale 0.0 ppb
No 0
B+
330 Centerville 0.0 ppb
No 4
B+
331 Waukee 0.0 ppb
No 13
A-
332 Muscatine 0.0 ppb
No 46
F
333 Coralville 0.0 ppb
No 15
B
334 Fort Madison 0.0 ppb
No 6
A-
335 North Liberty 0.0 ppb
No 29
B-
336 Clive 0.0 ppb
No 1
A
337 Grimes 0.0 ppb
No 13
A-
338 Newton 0.0 ppb
No 2
A
339 Norwalk 0.0 ppb
No 1
A
340 Storm Lake 0.0 ppb
No 1
A-
341 Mount Pleasant 0.0 ppb
No 2
A
342 Fairfield 0.0 ppb
No 15
A-
343 Graettinger 0.0 ppb
No 4
A
344 Webster City 0.0 ppb
No 3
A
345 Hiawatha 0.0 ppb
No 12
B-
346 Nevada 0.0 ppb
No 7
A
347 Stratford 0.0 ppb
No 6
A-
348 Adel 0.0 ppb
No 2
A
349 Orange City 0.0 ppb
No 0
A-
350 Asbury 0.0 ppb
No 0
A+
351 Anamosa 0.0 ppb
No 5
B-
352 De Witt 0.0 ppb
No 26
B+
353 Woodward 0.0 ppb
No 17
B
354 Vinton 0.0 ppb
No 4
A
355 West Burlington 0.0 ppb
No 17
B+
356 West Liberty 0.0 ppb
No 6
A
357 Eagle Grove 0.0 ppb
No 0
A
358 Story City 0.0 ppb
No 0
A
359 Missouri Valley 0.0 ppb
No 6
C+
360 Hawarden 0.0 ppb
No 4
A
361 Brooks 0.0 ppb
No 6
A+
362 Rockwell City 0.0 ppb
No 6
B+
363 Mitchellville 0.0 ppb
No 1
A
364 Belmond 0.0 ppb
No 0
A
365 Toledo 0.0 ppb
No 8
A
366 Cascade 0.0 ppb
No 0
A
367 Alta 0.0 ppb
No 1
A-
368 Northwood 0.0 ppb
No 3
A
369 Britt 0.0 ppb
No 0
B+
370 Sac City 0.0 ppb
No 0
A
371 Sumner 0.0 ppb
No 0
A+
372 Dallas Center 0.0 ppb
No 0
A
373 Columbus Junction 0.0 ppb
No 0
A-
374 Prairie City 0.0 ppb
No 3
A
375 Granger 0.0 ppb
No 1
A-
376 Corydon 0.0 ppb
No 0
A-
377 Traer 0.0 ppb
No 0
A
378 Urbana 0.0 ppb
No 0
A-
379 Walcott 0.0 ppb
No 0
A
380 Van Meter 0.0 ppb
No 6
A-
381 Wellman 0.0 ppb
No 24
A-
382 Bedford 0.0 ppb
No 19
A-
383 Buffalo 0.0 ppb
No 12
A-
384 Roland 0.0 ppb
No 4
A
385 Sanborn 0.0 ppb
No 0
A
386 Decatur City 0.0 ppb
No 3
A
387 New Sharon 0.0 ppb
No 0
A
388 Laurens 0.0 ppb
No 0
A
389 Coon Rapids 0.0 ppb
No 0
A
390 Dysart 0.0 ppb
No 0
A-
391 Springville 0.0 ppb
No 0
A
392 Middle Amana 0.0 ppb
No 1
B+
393 Gilbert 0.0 ppb
No 1
B+
394 Tripoli 0.0 ppb
No 1
A-
395 Shellsburg 0.0 ppb
No 12
A-
396 Oxford 0.0 ppb
No 24
C+
397 Dunkerton 0.0 ppb
No 6
A-
398 Elk Run Heights 0.0 ppb
No 1
A
399 North English 0.0 ppb
No 0
A
400 Winfield 0.0 ppb
No 0
A
401 Tabor 0.0 ppb
No 0
A-
402 Baxter 0.0 ppb
No 0
A-
403 Paullina 0.0 ppb
No 3
A
404 Lansing 0.0 ppb
No 3
A
405 Keosauqua 0.0 ppb
No 5
A
406 West Point 0.0 ppb
No 13
A-
407 Keota 0.0 ppb
No 4
A
408 Donnellson 0.0 ppb
No 20
B+
409 Hubbard 0.0 ppb
No 9
A
410 Buffalo Center 0.0 ppb
No 0
A
411 Riceville 0.0 ppb
No 0
A
412 Gilbertville 0.0 ppb
No 0
A-
413 Milo 0.0 ppb
No 4
A
414 Van Horne 0.0 ppb
No 1
A
415 Crescent 0.0 ppb
No 6
A
416 Dayton 0.0 ppb
No 7
A
417 Walnut 0.0 ppb
No 10
A
418 Exira 0.0 ppb
No 1
A-
419 Morning Sun 0.0 ppb
No 1
A
420 Redfield 0.0 ppb
No 0
A
421 Blairstown 0.0 ppb
No 3
A-
422 Montrose 0.0 ppb
No 1
A
423 Hedrick 0.0 ppb
No 0
A-
424 Shelby 0.0 ppb
No 3
A-
425 Ventura 0.0 ppb
No 0
A-
426 Bancroft 0.0 ppb
No 0
A+
427 Dexter 0.0 ppb
No 0
A
428 Agency 0.0 ppb
No 0
A-
429 Grand Mound 0.0 ppb
No 0
A
430 Moulton 0.0 ppb
No 1
A-
431 Farmington 0.0 ppb
No 20
A
432 Gilman 0.0 ppb
No 7
A+
433 Dows 0.0 ppb
No 3
A
434 Ainsworth 0.0 ppb
No 1
A
435 Sabula 0.0 ppb
No 1
A
436 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 436 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)
→
Chromium-6 in Iowa
Ranked by max detected (µg/L)
→
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)
→
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)
→
Cobalt in Iowa
Ranked by max detected (µg/L)
→
Lithium in Iowa
Ranked by max detected (µg/L)
→
NDMA in Iowa
Ranked by max detected (ng/L)
→
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 DakotaOhioOklahomaOregonPennsylvaniaQCRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming
← Lead contamination overview Explore Iowa water quality → National Lead map →