- 3 bd
- 1 ba
- 1,300 sqft

The average Union, ME home value is $390,433, up 1.5% over the past year. (Updated on )
Zillow Home Value Index (ZHVI), built from the ground up by measuring monthly changes in property level Zestimates, captures both the level and home values across a wide variety of geographies and housing types.
Typical Home Values: $390,433
1-Year Value Change: +1.5%
(Data through September 30, 2026)
Zillow is more than a place to browse homes. It’s a place to connect with a local agent, explore financing solutions, schedule home tours, understand your buying and selling power, and more.
The median home value in Union, ME is $390,433 as of September 2026. This represents a 0.3% decrease compared to last month and a 1.5% increase year-over-year.
Home values in Union, ME have decreased by 0.3% month-over-month and 1.5% year-over-year.
The median home value in Union, ME ($390,433) compares to: Knox County ($436,709), Maine ($412,002), and the U.S. national median ($366,157).