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Welcome to Lamar ...

The city of Lamar is located in Barton County<1> and is the County Seat for Barton County.

While we don't have a date for the founding of Lamar, you might consider that their post office opened in 1858.

See our Genealogy Helper Page for Lamar for more information about variations on the name of Lamar.

From the  Census Estimates for 2019, Lamar has a population of 4,268 people<2> (see below for details).

Lamar is 960 feet [293 m] above sea level.<3>.

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

Area Code for Lamar: 417

The ZIP code for Lamar: 64759<4>

Population Details ...

Taken from the 2019 Census Estimates, Lamar had an population of 4,268 people. This is a decrease of 5.83% since the 2010 Census (or a decrease of 3.55% since the 2000 Census).

At the time of the 2010 Census, Lamar had a population of 4,532 people (or 36.6% of the total population of Barton County). This makes Lamar the county's most populous community.

The population of Lamar represents 0.08% of the total population of Missouri (which has 5,988,927 people), making it the state's 145th most populous community.

With a 2010 count of 4,532 people, the population of Lamar increased 2.42% from the 2000 Census (which had a count of 4,425 people).

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

Communities Also Named Lamar ...

Using our Gazetteer, we found that there are 22 communities that are also named Lamar - they are located in Alabama, Arkansas, Colorado, Georgia (2), Indiana, Kansas, Louisiana, Michigan, Mississippi, Nebraska, North Carolina, Oklahoma, Pennsylvania, South Carolina, Tennessee (2), Texas (2), Washington, West Virginia and Wisconsin.

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

Communities near Lamar ...

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

  • Jasper
    (11 miles [17.7 km] to the south)
  • Lockwood
    (18 miles [29 km] to the southeast)
    • Lockwood is located in Dade County
    • Jump to our Gazetteer entry for Lockwood
    • Population from the 2020 Census: 897 people
  • Golden City
    (11 miles [17.7 km] to the southeast)
  • Liberal
    (14 miles [22.5 km] to the west)
    • Liberal is located in Barton County
    • Jump to our Gazetteer entry for Liberal
    • Population from the 2020 Census: 702 people
  • Alba
    (19 miles [30.6 km] to the southwest)
    • Alba is located in Jasper County
    • Jump to our Gazetteer entry for Alba
    • Population from the 2020 Census: 537 people
  • Mulberry
    (19 miles [30.6 km] to the west)
  • Sheldon
    (11 miles [17.7 km] to the north)
  • Purcell
    (19 miles [30.6 km] to the southwest)
  • Mindenmines
    (17 miles [27.4 km] to the west)
  • Carytown
    (16 miles [25.7 km] to the south)
    • Carytown is located in Jasper County
    • Jump to our Gazetteer entry for Carytown
    • Population from the 2020 Census: 283 people

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

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

We also have a detailed list of newspapers that have been published in the area around Lamar. Our list includes 18 papers. See our Newspapers Page for Lamar.

TripAdvisor Tourism Pages for Lamar ...

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

Adding Lamar to Our Gazetteer ...

We originally found mention of Lamar 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 Lamar was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the Lamar post office opened in 1858.

For more details, see References and Mentions for Lamar.

Footnotes ...

<1>If you're interested in how the shape of Missouri's counties, including Barton, 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 Lamar.
<3>The elevation is an estimate for the area around Lamar - 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 Lamar). When looking for a ZIP Code, whether Lamar 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>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/