Government go Results Found: 3 Button group with nested dropdown Jefferson County Economic Development... Jefferson County Economic Development Committee (JeffCo EDC) 1667 Cole Blvd #400 Lakewood CO 80401 (303) 202-2965 Jefferson County Board of Commission... Jefferson County Board of Commissioners 100 Jefferson County Parkway Suite 5550 Golden CO 80419 (303) 271-8525 Colorado State Representative Colorado State Representative 200 E Colfax Room 307 Denver CO 80203 (303) 866-2582