Vets in Longmont, CO
🚨 Emergency care8 vet clinics in Longmont — including 2 with emergency services (marked in red). Call ahead for same-day availability; for after-hours crises, hit the red button.
Red markers = emergency clinics. Click a marker for details.
Animal Emergency & Critical Care
230 South Main St, Longmont, CO 80501
Verified 2026-07-28
Animal Whispering
2226 Mariner Drive, Longmont, CO 80503
Unverified listing — call ahead to confirm hours and availability.
815 East 17th Avenue, Longmont, CO 80501
Hours: Mo-Fr 8-6, Sa 9-1
Unverified listing — call ahead to confirm hours and availability.
Longmont Small Animal Hospital
104 South Main Street, Longmont, CO 80501
Hours: Mo-Fr 07:30-19:00; Sa 07:30-14:00; Su Closed
Unverified listing — call ahead to confirm hours and availability.
Longmont, CO
Hours: Mo-Th 8-8, Fr 8-6, Sa 8-6
Unverified listing — call ahead to confirm hours and availability.
Longmont, CO
Hours: Mo-Tu 8-5, We closed, Th-Fr 8-5, Sa-Su closed
Unverified listing — call ahead to confirm hours and availability.
The Animal Hospital
1250 Main Street, Longmont, CO 80501
Hours: Mo-We 08:00-18:30; Th-Fr 08:00-17:30; Sa 08:00-13:00
Unverified listing — call ahead to confirm hours and availability.
Longmont, CO
Hours: Mo-Fr 7-6, Sa 8-12
Unverified listing — call ahead to confirm hours and availability.
Emergency and after-hours cover in Longmont
2 practices in Longmont post 24-hour hours and 2 offer emergency services — call before setting off; overnight staffing changes and full ICUs divert cases.
Nearest emergency hospitals outside Longmont
- Colorado Animal Specialty & Emergency — Boulder, ~11 miles away, roughly a 21 min drive, open 24h
- BluePearl — Lafayette, ~12 miles away, roughly a 21 min drive, open 24h
- Alpenglow Veterinary Specialty + Emergency Center — Boulder, ~12 miles away, roughly a 22 min drive, open 24h
- VCA All Pets Animal Hospital — Boulder, ~13 miles away, roughly a 24 min drive, open 24h
Distances are straight-line from Longmont; drive times are estimates, not live traffic.
For a suspected poisoning, ASPCA Animal Poison Control on (888) 426-4435 (24/7, consultation fee applies) can give you treatment advice immediately — often while you are still deciding whether to drive anywhere.
About this list
Ordering is objective — 24/7 first, then emergency services, then alphabetical — and no clinic can pay for placement. Across United States, an emergency exam typically runs $100–$250 and an overnight emergency $800–$3,000 — full cost breakdown · if you cannot pay.