# Castle Rock

- URL: https://palmerdivideresearch.com/places/castle-rock/

- Kind: Towns and settlements
- Status: Living today
- County: Douglas County, Colorado
- Point: 39.3722, -104.8561 (USGS GNIS point)
- Post office: Castle Rock (1871), 1871–1874; New Memphis, 1872–1874; Castle Rock, 1871 to today

- Updated: 2026-10-06

## What we know

The first Castle Rock PO (1871) sat at the Douglas site three miles south; New Memphis's office took the name May 18, 1874; plat filed April 25, 1874.

Today: Town of Castle Rock

## Where it was

USGS GNIS Populated Place 169449

The U.S. Geological Survey's official point for this place name.

## Nearby

- [Cedar Hill Cemetery](https://palmerdivideresearch.com/places/cedar-hill-cemetery/): 1.0 mi northwest
- [New Memphis](https://palmerdivideresearch.com/places/new-memphis/): 1.4 mi north
- [Madge Quarry](https://palmerdivideresearch.com/places/madge-quarry/): 2.0 mi south
- [Douglas](https://palmerdivideresearch.com/places/douglas/): 2.5 mi southwest
- [Tomah](https://palmerdivideresearch.com/places/tomah/): 5.2 mi south
- [Oakland School](https://palmerdivideresearch.com/places/oakland-school/): 5.3 mi west

Source numbers (S-0000) refer to https://palmerdivideresearch.com/sources/. Compiled by Michael Christensen for Palmer Divide Research; CC BY 4.0.