New Castle, CO ZIP code
The ZIP code for New Castle, Colorado is 81647. It is in Garfield County.
- Population in these ZIPs
- 6,882
- Avg. median income
- $78,400population-weighted
- Typical home value
- $648,700population-weighted
- Metro area
- Rifle, CO
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New Castle, CO ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 81647 | 6,882 | $78,352 | $648,700 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near New Castle
- Glenwood Springs 11 mi
- Silt 11 mi
- Gypsum 27 mi
- Parachute 29 mi
- Carbondale 30 mi
- Collbran 31 mi
- Rifle 33 mi
- Burns 35 mi
- Snowmass 37 mi
- Basalt 38 mi
- Meeker 40 mi
- Snowmass Village 40 mi
Frequently asked questions
What is the ZIP code for New Castle, CO?
The ZIP code for New Castle, CO is 81647.
What county is New Castle, Colorado in?
New Castle ZIP codes are in Garfield County.