Farmington city council member Kristin Kuiken said Monday that she will resign her post in May, because her family will be moving this summer.
Kuiken said her husband, Jim, has been transferred to the Denver area.
"I leave this position with a heavy heart," she said. "My family and I have loved living in this community for the past 11 years."
The Kuikens have been active volunteers for many of those years. Jim served on the Farmington Downtown Development Authority board, and Kristin was a member of the Planning Commission and the Board of Zoning Appeals.
"Farmington loses, but Denver gains," council member JoAnne McShane said.
Kuiken was elected in 2011 to a 4-year term; her last meeting will be on May 20. City manager Vince Pastue said officials will likely discuss at their April 15 meeting how to fill the vacancy.
Council members faced the same situation when Michael Wiggins resigned before the 2011 election. Council member Bill Galvin was appointed to fill the remaining two years of Wiggins' term and is up for re-election this year.