Rock River
Laboratory, INC.

Locations Information

Exceptional customer service and accurate analysis offered at nine locations

Rock River Laboratory can be found in several convenient locations across the US and abroad. Exact locations and contact information is provided below. All domestic phone calls are routed to our customer service team at our headquarters laboratory to streamline and ensure consistency of all information. Services can still be conveniently accessed by those outside of our laboratory regions. Simply order materials through our Shipping and Sampling Supplies page and receive free shipping for quick sample submission. 

Regular Hours of Operation

8:00 AM - 4:30 PM

Monday - Friday

Closed Saturday and Sunday

Rock River Laboratory closes to observe the following U.S. holidays: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and the following Friday, Christmas Eve Day, and Christmas Day

Watertown, Wisconsin - HeadquartersWatertown, WI

710 Commerce Drive (Physical)

PO Box 169 (Mailing)

Watertown, WI 53094

Phone: 920-261-0446


Colby, WIColby, Wisconsin

108 S. Division Street (Physical)

Colby, WI 54421

PO Box 388 (Mailing)

Abbotsford, WI 54405

Phone: 844-206-7255

Visalia, CAVisalia, California

708 Gateway Avenue (Physical)

Visalia, CA 93291

PO Box 580 (Mailing)

Goshen, CA 93227

Phone: 559-623-1911

Apple Creek, OH

Apple Creek, Ohio

7859 E Lincoln Way (Physical)

Apple Creek, OH 44606

PO Box 1039 (Mailing)

Wooster, OH 44691

Phone: 330-462-6041

Binghampton, NYBinghamton, New York

21 Kattelville Road (Physical)

Binghamton, NY 13901

PO Box 34 (Mailing)

Chenango Bridge, NY 13745

Phone: 607-591-5567


Lavras, BrazilLavras, Brazil

3R Lab

Fabio Modesto, 158

Joaquim Sales, Lavras MG, 32700-000



Santa Fe, ArgentinaSanta Fe, Argentina

Ricardo Aldao, 549 CP 3000

Santa Fe



Temuco, ChileTemuco, Chile

Hochstetter 560, Office 610

Temuco 4810148




GermanyHeiddorf, Germany

Hof Rump

19294 Heiddorf 



Questions or comments? Rock River Laboratory can easily be reached by emailing

Rock River Laboratory

Founded in 1976, Rock River Laboratory is a family-owned laboratory network that provides production assistance to the agricultural industry through the use of advanced diagnostic systems, progressive techniques, and research-supported analyses.  Employing a team of top specialists in their respective fields, Rock River Laboratory provides accurate, cost-effective, and timely analytical results to customers worldwide, while featuring unsurpassed customer service.

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