Real Estate for Sale in Union, ME

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View up-to-date real estate for sale in Union, ME. Reach out to Cates Real Estate for more details or to schedule a private tour. Be sure to sign up to save your favorite listings and get notified of new arrivals.

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Homes, Land, and Properties for Sale in Union, Maine

Union is a rural town in Knox County set among rolling farmland, forests, and ponds in the heart of mid-coast Maine. Union sits roughly 20 miles from Rockland and 15 miles from Camden, keeping residents within reach of the coast's employment, dining, and cultural amenities while maintaining a distinctly rural character. Properties in Union range from classic New England farmhouses and Cape Cods on acreage to smaller in-town lots.

Explore nearby markets including Rockland, ME real estate, Rockport, ME real estate, and Sennebec Pond properties. You can also browse Seven Tree Pond listings for water-access options in the area.

Frequently Asked Questions

What is the Union Fair in Union, ME?
The Union Fair is one of Maine's longest-running agricultural fairs, held annually in late August on the Union Fairgrounds. It features livestock competitions, harness racing, local vendors, and traditional fair events that reflect the town's deep agricultural heritage and draw large crowds from across Knox County and beyond.
What types of properties are available in Union, ME?
Union's real estate inventory includes single-family homes, farmhouses, land parcels, and properties with pond or water access. The market skews toward larger lots and rural settings, with a mix of historic New England-style homes and more recently built properties throughout the town's countryside and village center.

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Cates Real Estate participates in ©2026 Maine Listings Internet Data Exchange program, allowing us to display other Maine IDX Participants' listings. This website does not display complete listings. Certain listings of other real estate brokerage firms have been excluded. Mortgage figures are estimates. Check with your bank or proposed mortgage company for actual interest rates. This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.