RoadsideThoughts
A Gazetteer for the United States and Canada
Home >> State of Kansas >> Johnson County >> OlatheIndex...

Welcome to Olathe ...

The city of Olathe is located in Johnson County<1> and is the County Seat for Johnson County.

While we don't have a date for the founding of Olathe, you might consider that their post office opened in 1857.

From the  Census Estimates for 2019, Olathe has a population of 140,648 people<2> (see below for details).

Olathe is 1,020 feet [311 m] above sea level.<3>.

Time Zone: Olathe lies in the Central Time Zone (CST/CDT) and observes daylight saving time

Area Code for Olathe: 913

The ZIP codes for Olathe: 66051, 66061-66063, 66215<4>

Population Details ...

Taken from the 2019 Census Estimates, Olathe had an population of 140,648 people. This is an increase of 11.74% since the 2010 Census (or an increase of 51.3% since the 2000 Census).

At the time of the 2010 Census, Olathe had a population of 125,872 people (or 23.07% of the total population of Johnson County). This makes Olathe the county's 2nd most populous community.

The population of Olathe represents 4.41% of the total population of Kansas (which has 2,853,118 people), making it the state's 5th most populous community.

With a 2010 count of 125,872 people, the population of Olathe increased 35.4% from the 2000 Census (with a count of 92,962 people).

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

Communities Also Named Olathe ...

Using our Gazetteer, we found another community named Olathe - it's located in Colorado.

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

Websites for Olathe ...

Official Website:   www.olatheks.org/

Chamber of Commerce:   www.olathe.org/

Communities near Olathe ...

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

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

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

We also have a detailed list of newspapers that have been published in the area around Olathe. Our list includes 36 papers. See our Newspapers Page for Olathe.

TripAdvisor Tourism Pages for Olathe ...

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

Adding Olathe to Our Gazetteer ...

We originally found mention of Olathe 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 (so far) for Olathe was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the Olathe post office opened in 1857.

For more details, see References and Mentions for Olathe.

Footnotes ...

<1>If you're interested in how the shape of Kansas' counties, including Johnson, 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 Olathe.
<3>The elevation is an estimate for the area around Olathe - 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 city (such as Olathe). When looking for a ZIP Code, whether Olathe or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

Our list of ZIP Codes for Olathe includes: 66051, 66061, 66062 & 66063.
<5>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<6>A copy of the Blevins & Helbock Post Office list with background information can be found at:

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