Lead pipes in Iowa
Iowa's 1,083 community water systems reported 53,737 lead and 12,486 galvanized-requiring-replacement service lines, plus 204,010 of unknown material. That ranks #14 among states for confirmed lead lines.
- Lead 4.5%
- Galvanized (replace) 1.1%
- Unknown 17%
- Non-lead 77%
5.6% of the service lines Iowa utilities reported are lead or galvanized requiring replacement, well above the national share of 3.1%. 17% are still unidentified (national: 21%). The largest counts are in Iowa-American WTR Co-Davenport (9,628), Des Moines Water Works (8,124), City of Ankeny (6,630). 16 systems haven't reported counts yet.
Since 2025 Q1, reported lead and galvanized lines in Iowa went from 68,989 to 66,223 (down 2,766). See which systems made the most progress.
Systems with confirmed lead lines (402)
Showing the 100 with the most. All Iowa water systems
No confirmed lead, but unknown lines remain (107)
Showing 50. See all
No lead or unknown lines reported (73)
Systems serving 1,000 or more people. Systems without counts on file are listed as 0.
Showing the 50 largest. See all
Lead pipes in Iowa cities
- Cedar Rapids2,495 lead + galv. lines
- Davenport9,628 lead + galv. lines
- Sioux4,271 lead + galv. lines
- Ankeny6,630 lead + galv. lines
- Iowa2,787 lead + galv. lines
- West Des Moines59 lead + galv. lines
- Ames219 lead + galv. lines
- Waterloo285 unknown
- Council Bluffs3,511 lead + galv. lines
- Dubuque23,954 unknown
- Urbandale1 unknown
- Marion170 lead + galv. lines
- Cedar Fallsno lead reported
- Bettendorf9,628 lead + galv. lines
- Waukee110 unknown
- Ottumwano lead reported
- Johnstonno lead reported
- Fort Dodge1,249 lead + galv. lines
- Clinton889 lead + galv. lines
- Coralvilleno lead reported
- Burlington2 lead + galv. lines
- Muscatine2,419 lead + galv. lines
- Altoona70 unknown
- North Libertyno lead reported
- Clive45 lead + galv. lines
- Grimes7 lead + galv. lines
- Indianola9 lead + galv. lines
- Newton22 lead + galv. lines
- Norwalk1,392 unknown
- Boone1,905 lead + galv. lines
Iowa lead pipe questions
How many lead pipes are in Iowa?
Iowa's community water systems reported 53,737 lead service lines and 12,486 galvanized lines that must be replaced, for 66,223 in total. Another 204,010 lines are of unknown material.
Which Iowa water systems have the most lead pipes?
Iowa-American WTR Co-Davenport (9,628), Des Moines Water Works (8,124), City of Ankeny (6,630). Counts are lead plus galvanized-requiring-replacement lines.
What share of Iowa service lines are lead?
5.6% of reported service lines in Iowa are lead or galvanized requiring replacement, well above the national figure of 3.1%. 17% are still unknown, compared with 21% nationally.
How do I find out if my Iowa home has a lead service line?
Search for your water system or ZIP code above, then open your utility's address-level inventory map. You can also check the pipe where it enters your home with a scratch and magnet test.
Source: EPA SDWIS service line inventory, 2026 Q3. Smaller systems with no lead or unknown lines are omitted. See also national rankings.