Welcome to Arnold ...
The city of Arnold is located in Jefferson County<1>.
The location of Arnold has been provided by the Geographic Names Information System (ie- the GNIS).<2>
While we don't have a date for the founding of Arnold, you might consider that their post office opened in 1945.
From the Census Estimates for 2019, Arnold has a population of 21,134 people<3> (see below for details).
Arnold is 500 feet [152 m] above sea level.<4>.
Time Zone: Arnold lies in the Central Time Zone (CST/CDT) and observes daylight saving time
Arnold lies within the (636) area code.
The ZIP code for Arnold: 63010<5>
Websites for Arnold ...
Official Website: www.arnoldmo.org/
Population Details ...
Taken from the 2019 Census Estimates, Arnold had an population of 21,134 people. This is an increase of 1.57% since the 2010 Census (or an increase of 5.86% since the 2000 Census).
At the time of the 2010 Census, Arnold had a population of 20,808 people (or 9.51% of the total population of Jefferson County). This makes Arnold the county's most populous community.
The population of Arnold represents 0.35% of the population of Missouri (which has 5,988,927 people), making it the state's 32nd most populous community.
With a 2010 count of 20,808 people, the population of Arnold increased 4.22% from the 2000 Census (with a count of 19,965 people).
More information can be found on the Census Page for Arnold.
Communities Also Named Arnold ...
Using our Gazetteer, we found that there are 39 communities that are also named Arnold - they are located in Alabama, British Columbia, California (3), Georgia (6), Illinois (2), Iowa, Kansas (3), Kentucky (2), Maine, Maryland, Massachusetts, Michigan (3), Minnesota, Montana, Nebraska, Nevada, North Carolina, North Dakota, Nova Scotia, Ohio, Pennsylvania (2), Texas, West Virginia (2) and Wisconsin.
For more information, see our Tidbits & Trivia Page for Arnold.
Communities near Arnold ...
We have created a list of 10 communities that are near Arnold.
- Saint Louis
(16 miles [25.7 km] to the northeast)- Jump to our Gazetteer entry for Saint Louis
- Saint Louis is located in Saint Louis City
- Population from the 2020 Census: 297,645 people
- Jump to TripAdvisor's Tourism page for Saint Louis <6>
- Chesterfield
(19 miles [30.6 km] to the northwest)- Jump to our Gazetteer entry for Chesterfield
- Chesterfield is located in Saint Louis County
- Population from the 2020 Census: 47,570 people
- Jump to TripAdvisor's Tourism page for Chesterfield <6>
- Wildwood
(19 miles [30.6 km] to the northwest)- Note: The GPS coordinates that we are using for Wildwood have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Wildwood
- Wildwood is located in Saint Louis County
- Population from the 2020 Census: 35,460 people
- Jump to TripAdvisor's Tourism page for Wildwood <6>
- University City
(16 miles [25.7 km] to the north)- Jump to our Gazetteer entry for University City
- University City is located in Saint Louis City
- Population from the 2020 Census: 34,049 people
- Ballwin
(14 miles [22.5 km] to the northwest)- Note: The GPS coordinates that we are using for Ballwin have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Ballwin
- Ballwin is located in Saint Louis County
- Population from the 2020 Census: 30,094 people
- Jump to TripAdvisor's Tourism page for Ballwin <6>
- Kirkwood
(10 miles [16.1 km] to the north)- Jump to our Gazetteer entry for Kirkwood
- Kirkwood is located in Saint Louis County
- Population from the 2020 Census: 27,866 people
- East Saint Louis
(18 miles [29 km] to the northeast)- Jump to our Gazetteer entry for East Saint Louis
- East Saint Louis is located in Saint Clair County (IL)
- Population from the 2020 Census: 25,776 people
- Jump to TripAdvisor's Tourism page for East Saint Louis <6>
- Webster Groves
(11 miles [17.7 km] to the north)- Note: The GPS coordinates that we are using for Webster Groves have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Webster Groves
- Webster Groves is located in Saint Louis County
- Population from the 2020 Census: 22,896 people
- Creve Coeur
(16 miles [25.7 km] to the north)- Note: The GPS coordinates that we are using for Creve Coeur have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Creve Coeur
- Creve Coeur is located in Saint Louis County
- Population from the 2020 Census: 18,624 people
- Manchester
(12 miles [19.3 km] to the northwest)- Note: The GPS coordinates that we are using for Manchester have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Manchester
- Manchester is located in Saint Louis County
- Population from the 2020 Census: 18,081 people
- Jump to TripAdvisor's Tourism page for Manchester <6>
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 Arnold. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Arnold.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Arnold. 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 Arnold.
We also have a detailed list of newspapers that have been published in the area around Arnold. See our Newspapers Page for Arnold.
TripAdvisor Tourism Pages for Arnold ...
Looking for more information about Arnold? 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 Arnold, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Arnold.
Adding Arnold to Our Gazetteer ...
We originally found mention of Arnold 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 Arnold was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<7>
From that list, the Arnold post office opened in 1945.
For more details, see References and Mentions for Arnold.
Off-the-Road Links ...
The official website for Arnold: www.arnoldmo.org/
The official website for Jefferson County: www.jeffcomo.org/
The official website for State of Missouri: https://www.mo.gov/
Footnotes ...
| <1> | If you're interested in how the shape of Missouri's counties, including Jefferson, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <2> | 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. |
| <3> | Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Arnold. |
| <4> | The elevation is an estimate for the area around Arnold - it will be higher in some places and lower in others. |
| <5> | 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 Arnold). When looking for a ZIP Code, whether Arnold or elsewhere, it's always best to check the website of the United States Postal Service (USPS). |
| <6> | While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program. |
| <7> | A copy of their list with background information can be found at: https://cblevins.github.io/us-post-offices/data-biography/ |