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Get your water tested in Iowa.

The labs Iowa certifies to test drinking water, from the state’s own list of Oct. 10, 2026. A lab test is the only way to know what is in your own tap or well.

The short answer

Iowa’s list has 36 labs certified to test drinking water: 17 in Iowa and 19 in other states. It also names 22 water utilities’ in-house labs, left out here because they test only their own systems’ water.

Certification is test by test, so check that a lab is certified for what you want tested, and call first: it will say which bottles to use and how soon the sample has to arrive.

From the state

  • State Hygienic Laboratory at the University of Iowa

    Through the Grants-to-Counties program, private well owners in participating counties can have their water tested for total coliform bacteria and nitrate. Start with the county sanitarian at your county health department. No cost in a participating county.

    The Grants-to-Counties Program, State Hygienic Lab at the University of Iowa, checked Oct. 10, 2026

Labs in Iowa

17 labs, by city.

Labs in Iowa, certified by Iowa
LabCityPhoneCertified for
State Hygienic Laboratory - AnkenyAnkeny(515) 725-1600Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Eurofins - Cedar FallsCedar Falls(319) 277-2401Bacteria, nitrate, minerals and other inorganics
Linn County Public Health DepartmentCedar Rapids(319) 892-6000Bacteria, nitrate
Microbac Laboratories - CentervilleCenterville(641) 437-7023Bacteria
Foundation Analytical LaboratoryCherokee(712) 225-6989Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, PFAS
State Hygienic Laboratory - CoralvilleCoralville(319) 335-4500Bacteria, nitrate, organic chemicals, disinfection byproducts, PFAS, radioactivity
Quad Cities Metallurgical LaboratoryDavenport(563) 386-7827Bacteria, nitrate
Dubuque County Health DepartmentDubuque(563) 557-7396Bacteria
AgSourceEllsworth(515) 297-8103Bacteria, nitrate, metals, minerals and other inorganics
QC Analytical ServicesLe Claire(563) 289-3373Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
ChemRight LaboratoriesMaquoketa(563) 652-4226Bacteria, nitrate, minerals and other inorganics
State Hygienic Laboratory - LakesideMilford(712) 337-3669Bacteria, nitrate, minerals and other inorganics
Ion Environmental SolutionsMuscatine(563) 299-2214Bacteria, nitrate
Microbac Laboratories - NewtonNewton(641) 792-8451Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Analytical & Consulting ServicesSergeant Bluff(712) 943-4888Bacteria, nitrate
Siouxland District Health DepartmentSioux City(712) 234-3908Bacteria, nitrate, minerals and other inorganics
Microbac Laboratories - WaterlooWaterloo(319) 235-4440Bacteria, nitrate

Labs in other states

19 labs Iowa certifies outside the state, by state and city. Ask whether a lab takes samples by mail, and how fast they have to arrive.

Labs in other states, certified by Iowa
LabCityPhoneCertified for
Eurofins - DenverArvada, CO(303) 736-0100Organic chemicals, PFAS
SGS Accutest - OrlandoOrlando, FL(407) 425-6700Organic chemicals, PFAS
Microbac Laboratories - NorthbrookNorthbrook, IL(847) 564-0700Radioactivity
Pace Analytical Services - PeoriaPeoria, IL(800) 752-6651Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Culligan Analytical LaboratoryRosemont, IL(847) 430-1219Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Eurofins - ChicagoTinley Park, IL(708) 534-5200Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Eurofins - South BendSouth Bend, IN(574) 233-4777Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Pace Analytical Services - MinneapolisMinneapolis, MN(612) 607-6352Lead and copper, metals, organic chemicals
EMSL Analytical - MinneapolisNew Hope, MN(763) 449-4922Asbestos
Eurofins TestAmerica - St. LouisEarth City, MO(314) 298-8566Radioactivity
Eurofins CEI - CaryCary, NC(919) 481-1413Asbestos
Midwest LaboratoriesOmaha, NE(402) 334-7770Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
EMSL Analytical -CinnaminsonCinnaminson, NJ(856) 858-4800Lead and copper, organic chemicals, PFAS, radioactivity, asbestos
Alliance Technical Group - AkronCuyahoga Falls, OH(330) 253-8211Organic chemicals, PFAS
Microbac Laboratories - OhioMarietta, OH(740) 373-4071Organic chemicals, PFAS
Pace Analytical Services - GreensburgGreensburg, PA(724) 850-5600Radioactivity
Eurofins - LancasterLancaster, PA(717) 656-2300Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Pace Analytical - Mt. JulietMt. Juliet, TN(615) 773-9653Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, radioactivity
Davy LaboratoriesLa Crosse, WI(608) 782-3130Bacteria

What to ask a lab to test

Source: Iowa DNR, laboratories certified for drinking water, dated Oct. 10, 2026, read Oct. 10, 2026. Labs are listed as the state lists them; what each is certified for is as far as the list says. Certifications change, so a lab’s own word is the latest.

A lab named for a water utility is listed apart. Distances on town pages are straight lines between ZIP code centers from the Census 2020 gazetteer. How labs are listed here.

Where to go next