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Welcome to Loudon ...

Loudon is located in Merrimack County<1>.

While we don't have a date for the founding of Loudon, you might consider that their post office opened  in 1846.

From the  Census Estimates for 2019, Loudon has a population of 5,646 people<2> (see below for details).

Loudon is 380 feet [116 m] above sea level.<3>.

Time Zone: Loudon lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time

Area Code for Loudon: 603

Population Details ...

Taken from the 2019 Census Estimates, Loudon had an population of 5,646 people. This is an increase of 6.19% since the 2010 Census (or an increase of 26% since the 2000 Census).

At the time of the 2010 Census, Loudon had a population of 5,317 people. This makes Loudon the county's 7th most populous community.

The population of Loudon represents 0.4% of the population of New Hampshire (which has 1,316,470 people), making it the state's 62nd most populous community.

With a 2010 count of 5,317 people, the population of Loudon increased 18.66% from the 2000 Census (which had a count of 4,481 people).

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

Communities Also Named Loudon ...

Using our Gazetteer, we found that there are 5 communities that are also named Loudon - they are located in Louisiana, Ohio, Pennsylvania, Tennessee and West Virginia.

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

Communities near Loudon ...

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

  • Concord
    (6 miles [9.7 km] to the southwest)
  • Goffstown
    (19 miles [30.6 km] to the south)
    • Note: The GPS coordinates that we are using for Goffstown have been provided by the GNIS.<5> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Goffstown
    • Goffstown is located in Hillsborough County
    • Population from the 2020 Census: 18,136 people
    • Jump to TripAdvisor's Tourism page for Goffstown <4>
  • Laconia
    (16 miles [25.7 km] to the north)
  • Hooksett
    (13 miles [20.9 km] to the south)
  • Weare
    (18 miles [29 km] to the southwest)
    • Jump to our Gazetteer entry for Weare
    • Weare is located in Hillsborough County
    • Population from the 2020 Census: 9,100 people
    • Jump to TripAdvisor's Tourism page for Weare <4>
  • Franklin
    (14 miles [22.5 km] to the northwest)
    • Note: We haven't been able to verify our GPS coordinates for Franklin. Although the coordinates have been estimated, they should be in the vicinity.<6>
    • Jump to our Gazetteer entry for Franklin
    • Franklin is located in Merrimack County
    • Population from the 2020 Census: 8,753 people
    • Jump to TripAdvisor's Tourism page for Franklin <4>
  • Bow
    (11 miles [17.7 km] to the south)
    • Note: We haven't been able to verify our GPS coordinates for Bow. Although the coordinates have been estimated, they should be in the vicinity.<6>
    • Jump to our Gazetteer entry for Bow
    • Bow is located in Merrimack County
    • Population from the 2020 Census: 8,063 people
    • Jump to TripAdvisor's Tourism page for Bow <4>
  • Belmont
    (11 miles [17.7 km] to the north)
  • Gilford
    (18 miles [29 km] to the north)
    • Note: The GPS coordinates that we are using for Gilford have been provided by the GNIS.<5> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Gilford
    • Gilford is located in Belknap County
    • Population from the 2020 Census: 7,278 people
    • Jump to TripAdvisor's Tourism page for Gilford <4>
  • Pembroke
    (9 miles [14.5 km] to the south)
    • Note: We haven't been able to verify our GPS coordinates for Pembroke. Although the coordinates have been estimated, they should be in the vicinity.<6>
    • Jump to our Gazetteer entry for Pembroke
    • Pembroke is located in Merrimack County
    • Population from the 2020 Census: 7,252 people
    • Jump to TripAdvisor's Tourism page for Pembroke <4>

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

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

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

TripAdvisor Tourism Pages for Loudon ...

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

Adding Loudon to Our Gazetteer ...

We originally found mention of Loudon 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 Loudon was in the book titled U.S. Post Offices (Oct. 1846).

We also found Loudon in the book titled Table of U.S. Post Offices in the United States (Jan. 1851).

For more details, see References and Mentions for Loudon.

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

The official website for State of New Hampshire: https://www.nh.gov/

Footnotes ...

<1>If you're interested in how the shape of New Hampshire's counties, including Merrimack, 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 Loudon.
<3>The elevation is an estimate for the area around Loudon - it will be higher in some places and lower in others.
<4>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<5>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.
<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.




 

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This page was last modified/updated: 28 Apr 2025