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Welcome to Hartline ...

The town of Hartline is located in Grant County<1>.

While we don't have a date for the founding of Hartline, you might consider that their post office opened  in 1890.

From the  Census Estimates for 2019, Hartline has a population of 154 people<2> (see below for details).

Hartline is 1,910 feet [582 m] above sea level.<3>.

Time Zone: Hartline lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

Area Code for Hartline: 509

The ZIP code for Hartline: 99135<4>

Population Details ...

Taken from the 2019 Census Estimates, Hartline had an population of 154 people. This is an increase of 1.99% since the 2010 Census (or an increase of 14.93% since the 2000 Census).

At the time of the 2010 Census, Hartline had a population of 151 people. This makes Hartline the county's 13th most populous community.

With a 2010 count of 151 people, the population of Hartline increased 12.69% from the 2000 Census (with a count of 134 people).

More information can be found on the Census Page for Hartline.

Communities Also Named Hartline ...

Using our Gazetteer, we found that there are two Washington communities named Hartline: This one is located in Grant County and the other is located in Douglas County.

For more information, see our Tidbits & Trivia Page for Hartline.

Communities near Hartline ...

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

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 Hartline. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Hartline.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Hartline. 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 Hartline.

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

TripAdvisor Tourism Pages for Hartline ...

Looking for more information about Hartline? 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 Hartline, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Hartline.

Adding Hartline to Our Gazetteer ...

We originally found mention of Hartline 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 Hartline was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<8>

X2X - From that list, the Hartline post office opened in 1890.

For more details, see References and Mentions for Hartline.

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

The official website for Grant County: www.co.grant.wa.us/

The official website for State of Washington: https://wa.gov/

Footnotes ...

<1>If you're interested in how the shape of Washington's counties, including Grant, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Hartline.
<3>The elevation is an estimate for the area around Hartline - it will be higher in some places and lower in others.
<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 town (such as Hartline). When looking for a ZIP Code, whether Hartline 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>An 'estimated' location is one where we have been given GPS coordinates, but are unable to verify the accuracy of those coordinates. That said, we have some confidence that we have placed the marker near the actual location. A typical reason for being unable to verify a location is that it might be on private property or maybe historic and gone without an obvious trace.
<7>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.
<8>A copy of their list with background information can be found at:

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




 

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This page was last modified/updated: 29 Apr 2025