REGION
Boulder County Area Codes and ZIP Codes
Colorado · United States
- Country calling code
- +1
- Local time
- America/Denver
- Country
- United States
A local area-code link is not listed here. The country calling code is shown separately when available.
On this page
Cities & settlements
- BoulderRegional capitalUnited States · Colorado · Boulder County
- LongmontCity / settlementUnited States · Colorado · Boulder County
- LafayetteCity / settlementUnited States · Colorado · Boulder County
- ErieCity / settlementUnited States · Colorado · Boulder County
- LouisvilleCity / settlementUnited States · Colorado · Boulder County
- SuperiorCity / settlementUnited States · Colorado · Boulder County
- GunbarrelCity / settlementUnited States · Colorado · Boulder County
- NiwotCity / settlementUnited States · Colorado · Boulder County
- Coal CreekCity / settlementUnited States · Colorado · Boulder County
- LyonsCity / settlementUnited States · Colorado · Boulder County
- NederlandCity / settlementUnited States · Colorado · Boulder County
- Pine Brook HillCity / settlementUnited States · Colorado · Boulder County
- Paragon EstatesCity / settlementUnited States · Colorado · Boulder County
- Lazy AcresCity / settlementUnited States · Colorado · Boulder County
- Eldorado SpringsCity / settlementUnited States · Colorado · Boulder County
- AllensparkCity / settlementUnited States · Colorado · Boulder County
- AltonaCity / settlementUnited States · Colorado · Boulder County
- Saint Anton HighlandsCity / settlementUnited States · Colorado · Boulder County
- Mountain MeadowsCity / settlementUnited States · Colorado · Boulder County
- JamestownCity / settlementUnited States · Colorado · Boulder County
- SugarloafCity / settlementUnited States · Colorado · Boulder County
- Gold HillCity / settlementUnited States · Colorado · Boulder County
- SunshineCity / settlementUnited States · Colorado · Boulder County
- Bark RanchCity / settlementUnited States · Colorado · Boulder County
- Tall TimberCity / settlementUnited States · Colorado · Boulder County
- CrismanCity / settlementUnited States · Colorado · Boulder County
- WardCity / settlementUnited States · Colorado · Boulder County
- EldoraCity / settlementUnited States · Colorado · Boulder County
- Bonanza Mountain EstatesCity / settlementUnited States · Colorado · Boulder County
- Seven HillsCity / settlementUnited States · Colorado · Boulder County
- Seven HillsCity / settlementUnited States · Colorado · Boulder County
- GlendaleCity / settlementUnited States · Colorado · Boulder County
- ValmontCity / settlementUnited States · Colorado · Boulder County
- Hidden LakeCity / settlementUnited States · Colorado · Boulder County
- LeynerCity / settlementUnited States · Colorado · Boulder County
- AraCity / settlementUnited States · Colorado · Boulder County
- ArrowoodCity / settlementUnited States · Colorado · Boulder County
- Aspen MeadowsCity / settlementUnited States · Colorado · Boulder County
- BalaratCity / settlementUnited States · Colorado · Boulder County
- Big Elk MeadowsCity / settlementUnited States · Colorado · Boulder County
- Boulder JunctionCity / settlementUnited States · Colorado · Boulder County
- CanfieldCity / settlementUnited States · Colorado · Boulder County
- Caribou CityCity / settlementUnited States · Colorado · Boulder County
- CopperdaleCity / settlementUnited States · Colorado · Boulder County
- CrescentCity / settlementUnited States · Colorado · Boulder County
- Crescent VillageCity / settlementUnited States · Colorado · Boulder County
- DominionCity / settlementUnited States · Colorado · Boulder County
- El VadoCity / settlementUnited States · Colorado · Boulder County
- FerncliffCity / settlementUnited States · Colorado · Boulder County
- Gold RunCity / settlementUnited States · Colorado · Boulder County
Administrative areas
- City of BoulderRegionUnited States · Colorado · Boulder County
- City of LafayetteRegionUnited States · Colorado · Boulder County
- City of LouisvilleRegionUnited States · Colorado · Boulder County
Local time & call planner
Plan a call
Choose your local date and time. See when it will be at your destination, including seasonal clock changes.
Boulder County Time Zone
- IANA time zone
- America/Denver
- Current UTC offset
- -07:00
- Daylight saving time
- Not in effect
Map & location
Latitude and Longitude
- Latitude
- 40.09246
- Longitude
- -105.3577
Call Boulder County
International dialing format
+1 [national number]
Use the national number in international format. A domestic trunk prefix is not always part of that number.
Build your dialing format
Enter the national significant number without its domestic trunk prefix, or a number beginning with +. No prefixes are removed for you. These formats do not confirm that a number is valid.
Nearby places
Distances are measured in a straight line.
Find surrounding cities and settlements, ordered by distance.
Show nearby placesLocal facts
Population is a source snapshot, not a live count.
- Recorded population
- 330,758
- Recorded elevation
- 2062 m
Names & history
Names, translations and spelling variants
Other spellings
- Boulder
Arabic
- مقاطعة بولدر
Language: bg
- Боулдър
Language: bpy
- বৌল্ডার কাউন্টি
English
- Boulder
Spanish
- Condado de Boulder
Language: et
- Boulderi maakond
Language: eu
- Boulder konderria
Language: fa
- شهرستان بولدر، کلرادو
French
- Comté de Boulder
Language: hu
- Boulder megye
Language: hy
- Բոլդեր շրջան
Italian
- Contea di Boulder
Japanese
- ボルダー郡
Language: nan
- Boulder Kūn
Polish
- Hrabstwo Boulder
Language: pnb
- باؤلڈر کاؤنٹی
Portuguese
- Condado de Boulder
Language: ro
- Comitatul Boulder
Russian
- Боулдер
Language: sr
- Округ Болдер
Ukrainian
- Боулдер
Language: ur
- بولڈر کاؤنٹی، کولوراڈو
Language: vi
- Quận Boulder
Language: war
- Condado han Boulder
Chinese
- 圓石縣