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County Line Seed offers Pioneer seed and seed treatments, as well as many other quality agricultural products to help your farm operation thrive.


These innovative products are sure to make your planter more efficient.  Contact our knowledgeable staff for a quote on a planter upgrade today.

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Contact us for your soil sampling, crop scouting, field planning/mapping, cover crop, and liquid fertilizer needs. 

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Langford, South Dakota



County Line Seed is a family-owned business dedicated to serving our customers in an open and honest manner.

Our qualified staff specializes in Pioneer brand seed & seed treatments, along with updating or overhauling corn planters with the best products available today.


Look to the team at County Line Seed for professional products, service, and advice to help make your operation thrive.

County Line Seed Building
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