Boulder County, Colorado: Farm & Ranch Directory
27 farm and ranch listings in Boulder County, Colorado, grouped by category below.
Events in Boulder County
- Boulder County Fair
County fair at the Boulder County Fairgrounds in Longmont. Held each year; the most recent dates were Aug. 5-9, 2026.
9595 Nelson Rd, Longmont, CO 80501 Official event details - Boulder County Fair, Livestock Show and Rodeo
Boulder County's five-day fair, August 5 to 9, 2026, in Longmont combining a livestock show, 4-H and open-class exhibits and a rodeo.
9595 Nelson Rd Bldg 200, Longmont, CO 80501 | 720-864-6460 | Organizer: Boulder County Official event details
Farms & Ranches in Boulder County
- Aspen Moon Farm
Longmont farm selling produce daily from 10 a.m. to 6 p.m. between mid-June and mid-December.
7927 Hygiene Rd, Longmont, CO | 303-684-6848 - Colorado's Best Beef Company
Natural beef producer on Jay Road in Boulder taking orders by phone or email year-round.
4791 Jay Rd, Boulder, CO | 303-449-8632 - Cottonwood Farm
Lafayette farm open for fall autumn-harvest season and again for the Thanksgiving to Christmas stretch.
10600 Isabelle Rd, Lafayette, CO | 720-890-4766 - Father Earth Organic Farm
Organic Lafayette farm selling through CSA shares and farmers markets, with weekday office hours 8 a.m. to 5 p.m.
Lafayette, CO | 720-849-3484 - Growing Gardens
Boulder nonprofit urban farm with fall pumpkins and u-pick; visitors call ahead in the off-season.
1630 Hawthorn Ave, Boulder, CO | 303-579-1605 - Isabelle Farm
Lafayette farm with a year-round farm store and an autumn pumpkin patch open daily, 10 a.m. to 6 p.m.
1640 W. Baseline Rd, Lafayette, CO | 720-438-0707 - Kilt Farm
Niwot farm open Monday through Saturday, 8 a.m. to 6 p.m., from mid-May into the start of October.
8140 Oxford Rd, Niwot, CO | 970-846-6233 - Longmont Dairy Farm
Longmont dairy with home delivery and customer service open weekday mornings, closing at noon on Fridays.
Longmont, CO | 303-776-8466 - Mountain Flower Goat Dairy
Boulder goat dairy offering free public visits on Saturdays in spring and private tours from April through October.
3240 Broadway St, Boulder, CO | 720-492-8918 - Munson Farms
Valmont Road farm selling produce daily from 9 a.m. to 7 p.m. from mid-July to the end of October.
7355 Valmont Rd, Boulder, CO | 303-442-5330 - Rocky Mountain Pumpkin Ranch
Longmont pumpkin ranch open daily 9 a.m. to 6 p.m. through October.
9059 Ute Hwy., Longmont, CO | 303-684-0087 - SkyPilot Farm
Longmont farm that welcomes visitors year-round by appointment.
10384 Airport Rd, Longmont, CO | 970-888-2263 - Stonebridge Farm
Longmont CSA with Saturday 11 a.m. pickup running May through October; call before visiting.
5169 Ute Hwy., Longmont, CO | 303-823-0975
Agribusiness in Boulder County
- Boulder and White Rock Ditch and Reservoir Company
Irrigation water organization at Longmont in Boulder County, Colorado, delivering ditch and reservoir water to growers. Phone (303) 776-5800.
Longmont, CO | (303) 776-5800 - Leyner-Cottonwood Consolidated Ditch Company
Irrigation water organization at Lafayette in Boulder County, Colorado, delivering ditch and reservoir water to growers. Phone (303) 665-5704.
Lafayette, CO | (303) 665-5704 - Rural Ditch Company
Longmont-based water user group serving Boulder County farmland; call (303) 678-4179 for shares, deliveries and ditch rider questions.
Longmont, CO | (303) 678-4179 - Swede Ditch Company
Irrigation water organization at Hygiene in Boulder County, Colorado, delivering ditch and reservoir water to growers. Phone (303) 776-7130.
Hygiene, CO | (303) 776-7130
Organizations in Boulder County
- Boulder County CSU Extension Office
The office shares the Boulder County Fairgrounds campus in Longmont. The Boulder County CSU Extension office is located at 9595 Nelson Road, Box B, Longmont, CO 80501; phone (303) 678-6238.
9595 Nelson Road, Box B, Longmont, CO 80501 | (303) 678-6238 Website - Boulder Valley Conservation District
Based in Longmont, this district works with Boulder County landowners on soil, water and weed management; an NRCS service center also operates in town.
Longmont, CO - Colorado Fruit and Vegetable Growers Association
Trade group for Colorado fruit and vegetable growers with a Longmont address on Nelson Road, the same campus as the Boulder County fairgrounds.
9595 Nelson Rd, Box B, Longmont, CO 80501 | 303-678-6383 - Colorado Wine Industry Development Board
State board with a Boulder contact that promotes Colorado wine and supports its vineyards and wineries.
Boulder, CO | (720) 304-3406 - Longmont Conservation District
A second Longmont-based district, separate from Boulder Valley, helping local landowners with conservation planning and cost-share programs.
Longmont, CO
Farmers Markets & Farm Stands in Boulder County
- Louisville Farmers Market
Saturday morning market on Front Street in Louisville, running 9 a.m. to 1 p.m. through the growing season.
824 Front St, Louisville, CO | 303-902-2451 - Nederland Farmers' Market
Mountain-town market held the second and fourth Sunday of each month, 10 a.m. to 2 p.m., May through September.
85 E. First St, Nederland, CO | 303-601-9939
Ag Education in Boulder County
- Boulder County 4-H Livestock Program
General guidance for Boulder County 4-H members raising market and breeding livestock for the Boulder County Fair.
Longmont, CO Website
Helpful Guides for Boulder County
- CSU Extension in Colorado
What Colorado State University Extension offers in Colorado counties: soil testing and sampling steps, small acreage help, Master Gardeners, 4-H enrollment and fair paperwork, and how to find your county office.
- Colorado Conservation Districts
How Colorado conservation districts work: elected supervisors, seedling tree sales, equipment rentals, cost share, matching grants from the State Conservation Board, and how to reach your district.
- Colorado County Fairs
A practical guide to Colorado county fairs: 2026 season dates, 4-H and FFA entries, MQA training, weigh-ins, weight limits, interview judging and how the junior livestock sale works.