
"Over 30 years of service partnering with you."
Seasonal News & Updates
If you feel that you are paying too much for your feed and supplements; stop in or call and see what we can do for you. With a full lineup of minerals, supplements, and complete feeds as well as nutritionists on site; we can accommodate most needs.
Stop in today for your lawn grass seed needs. Available now. We carry quality Mustang/Coyote brand seed.
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Coyote Lawn Mix
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Dwarf Fescue
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Endurance Lawn Mix
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We are now carrying Rancher's Choice Plastic Tubs in 250lb in addition to our normal Crystalyx tubs.
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Ranchers Choice 30% Protein tub
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18% all natural
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Mineral licks
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All natural Stress Tub
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Other's available special order
PRODUCTS
Frontier Mills is a custom feed mill, we manufacture a complete line of livestock feeds for all your needs. We also carry Hubbard Brand feeds, Akey swine feeds and Country Vet pet food. We have milk replacer for calves, kids and lambs. Also have various types of salt, and mineral blocks.
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DAIRY FEED
SWINE FEED
BEEF FEED
SHEEP FEED
CHICKEN FEED
GOAT FEED
HORSE FEED
ABOUT US
Located on Highway 314 just west of Yankton, South Dakota; Frontier Mills can meet all of your livestock feed needs. Frontier Mills was incorporated in 1989. Since then it's business and facilities have grown. It's most recent expansion in 2011, added more storage space for its products and mixing ingredients, more office space, and the addition of a forage testing lab.

Forage Lab
The lab was purchased in 2012 with from Riverside Premium Labs. To expand the usefulness of the NIR machines and testing capabilities and to better match the needs of the Nutritionists, we worked with Caltest to further develop our testing capabilities. As a result, we can now process a majority of forage samples in house, saving time and expense. The program expansion allow us to provide more detailed and specific results to use for balancing rations, decisions on purchasing, selling, pricing and advertising forages. In 2018, the lab was updated to better serve our customers.
Feedstuff's that we can test on site
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Alfalfa Hay
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Alfalfa Haylage
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Grass Hay
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Mixed Hay
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Mixed Haylage
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Small Grain Hay
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Small Grain Silage
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Sorghum Hay
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Sorghum Silage
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Corn Hay/Stover
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Corn Silage
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Earlage
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High Moisture Corn
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Dry Corn
Testing Constituents
•Moisture
•Dry Matter
•Crude Protein
•Soluble Protein
•Acid Detergent Fiber
•Neutral Detergent Fiber
•Digestible Neutral Detergent Fiber (48hr)
•Total Digestible Nutrients
•Net Energy for Lactation Mcal/lb
•Net Energy for Maintenance Mcal/lb
•Net Energy for Gain Mcal/lb
•Relative Feed Value RFV
•Relative ForageQuality RFQ
•Calcium
•Phosphorus
•Potassium
•Magnesium
•Sulfur
•Sodium
•Chloride
•Fat
•Starch
•Ash
•Nitrates (RQ Flex)
CONTACT US
2002 SD Hwy 314
Yankton, SD 57078
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Office: 1-605-665-2441
Office (toll free): 1-800-955-2441
OPENING HOURS:
Mon - Fri: 8am - 5 pm
​​Saturday: 8am - 12pm
​Sunday: Closed