New Castle town, Colorado
Official LSAD Designation: New Castle town • Census GEOID: 0853395
• Garfield County
New Castle town is an incorporated town in Garfield County, Colorado. According to official records from the Census (2025), New Castle town had an estimated population of 4,896 residents. Official Census Bureau geographic records classify this community under LSAD designation New Castle town (GEOID 0853395).
Local Government Administration U.S. Census Bureau GMAF
Town Of New Castle
Municipal
Official Title:
Mayor
Address:
PO BOX 90, NEW CASTLE CO 81647-0090
County Of Garfield
County
Official Title:
County Manager
Address:
108 8TH ST, SUITE 101, GLENWOOD SPRINGS CO 81601
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 4,896 | 2025 |
| Median Household Income | $80,084 | 2020-2024 |
| Median Home Value | $454,300 | 2020-2024 |
| Land Area | 2.50 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).