Lead Pipe Map

Lead pipes in Colorado

Colorado's 1,061 community water systems reported 18,792 lead and 2,618 galvanized-requiring-replacement service lines, plus 141,909 of unknown material. That ranks #23 among states for confirmed lead lines.

18,792Lead
2,618Galvanized, replace
141,909Unknown
55Systems with lead

1.2% of the service lines Colorado utilities reported are lead or galvanized requiring replacement, well below the national share of 3.1%. 7.8% are still unidentified (national: 21%). The largest counts are in Denver Water Board (16,674), City of Englewood (2,433), City of Aurora (476). 93 systems haven't reported counts yet.

Since 2025 Q1, reported lead and galvanized lines in Colorado went from 20,412 to 21,410 (up 998). See which systems made the most progress.

Systems with confirmed lead lines (55)

Water systemLeadGalv.Unknown% leadPeople
Denver Water BoardDenver County15,82684834,0575.4%1,287,000
City of EnglewoodArapahoe County2,433068222%59,904
City of AuroraArapahoe County124649,2860.5%533,407
City of Grand JunctionMesa County18917603.6%26,000
City of GreeleyWeld County102639,1910.9%132,310
Pueblo Board of WWPueblo County6710921,0480.4%114,070
City of SterlingLogan County164103.4%15,100
City of LovelandLarimer County21875,9120.4%91,077
Town of MancosMontezuma County09623116%1,390
City of Canon CityFremont County0773,4630.9%34,800
City of Glenwood SpringsGarfield County0657761.8%9,428
Parkville WDLake County1504812.1%7,500
City of Manitou SpringsEl Paso County0461,1662.1%6,938
City of Las AnimasBent County15221,1062.8%2,139
City of GoldenJefferson County2331770.7%38,288
City of BurlingtonKit Carson County0331,2612.1%3,720
City of LafayetteBoulder County1306140.3%28,700
Town of LimonLincoln County26062.7%5,080
City of YumaYuma County0171,3611.1%4,049
Town of RamahEl Paso County0153920%125
City of HolyokePhillips County01501.4%2,540
Morgan County Quality WDMorgan County1131,4830.5%8,116
Bristol WSDProwers County211319%151
City of ArvadaJefferson County0121,221<0.1%171,610
City of CortezMontezuma County0122610.3%8,770
City of SalidaChaffee County091,4100.3%5,666
City of WrayYuma County098360.8%2,342
Town of JohnstownWeld County093440.1%27,295
Town of EckleyYuma County18866.3%235
City of Ft MorganMorgan County90780.2%12,000
Town of GeorgetownClear Creek County9081.4%5,315
Town of HugoLincoln County1801.6%885
Town of CalhanEl Paso County081052.0%780
Town of NaturitaMontrose County071201.8%585
Freeman CreekLa Plata County07014%88
City of OurayOuray County064010.8%1,460
Town of BethuneKit Carson County06685.9%195
North Weld County WDWeld County052,137<0.1%15,890
Town of MerinoLogan County0503.1%235
City of La JuntaOtero County042,2340.1%8,320
May Valley WAProwers County044090.6%1,500
City of VictorTeller County043530.8%491
City of AspenPitkin County0476<0.1%31,100
City of Woodland ParkTeller County031,037<0.1%8,500
Town of SilvertonSan Juan County033250.5%2,387
Briggsdale WCWeld County03244.8%303
Town of PaoniaDelta County024580.2%2,499
Town of OrdwayCrowley County024420.4%1,300
City of Central CityGilpin County021550.5%3,750
Town of RyePueblo County02671.7%745
City of Ft LuptonWeld County012,163<0.1%12,099
City of Steamboat SpringsRoutt County10188<0.1%9,950
Town of Silver PlumeClear Creek County10170.7%180
Minnesota PipelinePaonia01143.3%72
City of WestminsterAdams County018<0.1%202,078

No confirmed lead, but unknown lines remain (105)

Water systemLeadGalv.Unknown% leadPeople
City of LouisvilleBoulder County004,4160%20,975
City of EvansWeld County003,3670%19,369
City of LamarProwers County003,2780%7,500
City of BrightonAdams County001,7300%56,304
City of AlamosaAlamosa County001,6860%11,271
Pueblo West MDPueblo County001,5350%30,000
City of Rocky FordOtero County001,4220%4,443
City of Monte VistaRio Grande County001,3360%4,600
City of CraigMoffat County001,0140%8,930
City of BrushMorgan County009410%5,122
Towaoc Water SystemTowoac008200%2,020
Town of Del NorteRio Grande County006940%1,429
City of GunnisonGunnison County006620%9,610
Town of PalisadeMesa County006010%3,060
Montezuma WCMontezuma County005770%13,797
Town of CenterSaguache County005560%2,575
Consolidated Mutual Maple GroveJefferson County004520%81,400
Town of AguilarLas Animas County004440%447
Town of EadsKiowa County004220%656
San Luis WSDCostilla County003940%629
Cloverleaf Colorado LLCLarimer County003930%1,007
City of RifleGarfield County003800%9,489
Costilla County WSCostilla County003770%561
Town of Dove CreekDolores County003120%850
Town of SaguacheSaguache County003120%504
Garden ValleyEl Paso County003030%900
Arbordale Acres MHPBoulder County002860%901
Town of Oak CreekRoutt County002580%950
Brook Forest WDJefferson County002530%998
Town of WalshBaca County002370%650
Town of Deer TrailArapahoe County002270%1,648
Town of La JaraConejos County002100%825
Rogers Mesa WCDelta County001970%840
Animas WCLa Plata County001950%3,096
Town of IgnacioLa Plata County001950%800
East AlamosaAlamosa County001760%1,453
Town of GypsumEagle County001750%15,272
Town of HudsonWeld County001750%3,350
Town of Orchard CityDelta County001570%3,100
Teller County WSDTeller County001570%600
Hickory VillageLarimer County001500%816
Ft Garland WSDCostilla County001470%477
Town of SeibertKit Carson County001430%296
Town of Sugar CityCrowley County001360%240
Town of WigginsMorgan County001340%1,909
Town of ArribaLincoln County001270%216
Mancos Rural Water CompanyMontezuma County001260%1,300
Town of RomeoConejos County001210%365
McClave WA INCBent County001190%378
Pioneer Mobile Home ParkAdams County001090%250

Showing 50. See all

No lead or unknown lines reported (234)

Systems serving 1,000 or more people. Systems without counts on file are listed as 0.

Water systemLeadGalv.Unknown% leadPeople
Colorado Springs UtilitiesEl Paso County0000%464,111
City of ThorntonAdams County0000%226,465
City of Ft CollinsLarimer County0000%179,901
City of BoulderBoulder County0000%166,080
Town of Castle RockDouglas County0000%110,298
Broomfield City and County ofBroomfield0000%106,153
City of LongmontBoulder County0000%104,178
Highlands Ranch WSDDouglas County0000%103,444
Ute WCDMesa County0000%92,580
South Adams County WSDAdams County0000%75,559
East Cherry Creek Valley WSDArapahoe County0000%66,130
Ft Collins Loveland WDLarimer County0000%63,532
Southgate WSDArapahoe County000–55,000
Eagle River WSDEagle County0000%51,515
Green Mountain WSDJefferson County000–49,400
City of NorthglennAdams County0000%48,927
Southwest Metropolitan WSDArapahoe County000–48,648
US Department of the Army Fort CarsonEl Paso County0000%48,000
Town of ErieBoulder County0000%47,444
Bancroft Clover WSDJefferson County000–44,000
Clifton WDMesa County0000%34,500
City of DurangoLa Plata County0000%33,787
Arapahoe Cnty WwwaArapahoe County0000%31,000
Bear Creek WSDJefferson County000–30,000
Cherokee MDEl Paso County0000%29,610
Town of BreckenridgeSummit County0000%28,315
East Larimer County WDLarimer County0000%27,944
Town of FirestoneWeld County0000%27,798
Widefield WSDEl Paso County0000%27,640
Csu Main and West Housing CampusLarimer County0000%27,375
Little Thompson WDLarimer County0000%25,654
City of FountainEl Paso County0000%25,130
Crestview WSDAdams County000–23,756
Town of WindsorWeld County0000%23,500
Meridian MDDouglas County0000%23,415
Cherry Creek Valley WSDDenver County000–22,000
Tri County WCDMontrose County0000%20,490
Left Hand WDBoulder County0000%20,280
Security Water DistrictEl Paso County0000%20,000
Wheat Ridge Water DistrictJefferson County000–20,000
Platte Canyon WSDArapahoe County000–19,485
City of MontroseMontrose County0000%19,305
Willows WDArapahoe County000–19,000
Mt Werner WDRoutt County0000%19,000
Woodmoor WSDEl Paso County0000%18,031
Superior MD No 1Boulder County0000%17,900
Town of FrederickWeld County0000%17,173
US Air Force AcademyEl Paso County0000%16,876
Town of Estes ParkLarimer County0000%16,722
Evergreen MDJefferson County0000%15,750

Showing the 50 largest. See all

Lead pipes in Colorado cities

All Colorado cities and towns · Lead pipes by county

Colorado lead pipe questions

How many lead pipes are in Colorado?

Colorado's community water systems reported 18,792 lead service lines and 2,618 galvanized lines that must be replaced, for 21,410 in total. Another 141,909 lines are of unknown material.

Which Colorado water systems have the most lead pipes?

Denver Water Board (16,674), City of Englewood (2,433), City of Aurora (476). Counts are lead plus galvanized-requiring-replacement lines.

What share of Colorado service lines are lead?

1.2% of reported service lines in Colorado are lead or galvanized requiring replacement, well below the national figure of 3.1%. 7.8% are still unknown, compared with 21% nationally.

How do I find out if my Colorado 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.