New Castle, CO zip code
New Castle, Colorado uses one zip code: 81647. Most of it is in Garfield County. Together these zip codes are home to about 6.9K people.
Zip codes
1
Population
6.9K
All zips combined
Largest zip
81647
6,882 residents
Zip codes in New Castle
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 81647 | 6,882 | $78,352 |