RoadsideThoughts
A Gazetteer for the United States and Canada
Home >> State of Colorado >> Jefferson County >> IdledaleIndex...










Learn About
The Commemorative
Quarter for
Colorado

The Commemorative Quarter for Colorado





Welcome to Idledale ...

Idledale is located in Jefferson County<1>.

While we don't have a date for the founding of Idledale, you might consider that their post office opened  in 1930.

Idledale is 6,450 feet [1,966 m] above sea level.<2> In other words, the altitude of Idledale is about 1¼ mile [or ~2 km] above sea level.

Time Zone: Idledale lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time

Area Codes for Idledale: 303 & 720<3>

The ZIP code for Idledale: 80453<4>

Communities near Idledale ...

We have created a list of 10 communities that are near Idledale.

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Idledale. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Idledale.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Idledale. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Idledale.

We also have a detailed list of newspapers that have been published in the area around Idledale. See our Newspapers Page for Idledale.

TripAdvisor Tourism Pages for Idledale ...

Looking for more information about Idledale? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Idledale, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Idledale.

Adding Idledale to Our Gazetteer ...

We originally found mention of Idledale in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Idledale was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<7>

X2X - From that list, the Idledale post office opened in 1930.

For more details, see References and Mentions for Idledale.

Unfortunately, we don't know of a website for Idledale. If you can help, please contact us through our Feedback Page.

The official website for Jefferson County: www.co.jefferson.co.us/

The official website for State of Colorado: https://www.colorado.gov/

Footnotes ...

<1>If you're interested in how the shape of Colorado's counties, including Jefferson, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Idledale - it will be higher in some places and lower in others.
<3>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 303 code has been Overlayed with the 720 area code. New phone numbers in the Idledale area will be assigned with one of these codes: 303 or 720. As a result, placing a call in the Idledale area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a community (such as Idledale). When looking for a ZIP Code, whether Idledale or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<5>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<6>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.
<7>A copy of their list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/




 

Copyright 2025
All Rights Reserved

Thank you for visiting our website.

In closing, please keep in mind that we can not guarantee the accuracy or timeliness of the information on this website, so use with care. We encourage you to double-check the information that is critical to you.

If you've found an error or have additional information that you would like to share, please don't hesitate to write: Click here to contact us.

This page was last modified/updated: 28 Apr 2025