Welcome to Arco ...

The city of Arco is located in Butte County<1> and is the County Seat for Butte County.

While we don't have a date for the founding of Arco, you might consider that their post office opened  in 1880.

From the  Census Estimates for 2019, Arco has a population of 886 people<2> (see below for details).

Arco is 5,320 feet [1,622 m] above sea level.<3> In other words, the elevation of Arco is 1 mile [or ~1½ km] above sea level.

Time Zone: Arco lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time

Area codes for Arco: (208) & (986)<4>

The ZIP code for Arco: 83213<5>

Population Details ...

Taken from the 2019 Census Estimates, Arco had an population of 886 people. This is a decrease of 10.95% since the 2010 Census (or a decrease of 13.65% since the 2000 Census).

At the time of the 2010 Census, Arco had a population of 995 people (or 34.42% of the total population of Butte County). This makes Arco the county's most populous community.

The population of Arco represents 0.06% of the total population of Idaho (which has 1,567,582 people), making it the state's 83rd most populous community.

With a 2010 count of 995 people, the population of Arco decreased 3.02% from the 2000 Census (with a count of 1,026 people).

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

Communities Also Named Arco ...

Using our Gazetteer, we found that there are 4 communities that are also named Arco - they are located in Georgia, Minnesota, Tennessee and Virginia.

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

Communities near Arco ...

We have created a list of 7 communities that are near Arco.

• Moore
  (7 miles [11.3 km] to the northwest)
  • Jump to our Gazetteer entry for Moore
  • Moore is located in Butte County
  • Population from the 2020 Census: 175 people
  • Jump to TripAdvisor's Tourism page for Moore <6>
• Lost River
  (16 miles [25.7 km] to the west)
  • Note: The GPS coordinates that we are using for Lost River have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Lost River
  • Lost River is located in Custer County
  • Population from the 2010 Census: 68 people
• Lost River
  (5 miles [8 km] to the northwest)
  • Note: The GPS coordinates that we are using for Lost River have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Lost River
  • Lost River is located in Butte County
• Howe
  (17 miles [27.4 km] to the northeast)
  • Note: The GPS coordinates that we are using for Howe have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Howe
  • Howe is located in Butte County
  • Jump to TripAdvisor's Tourism page for Howe <6>
• Alder City ‑ Historic
  (19 miles [30.6 km] to the northwest)
  • Note: The GPS coordinates that we are using for Alder City have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Alder City
  • Alder City is located in Custer County
• Mackay
  (24 miles [38.6 km] to the northwest)
  • Note: The GPS coordinates that we are using for Mackay have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Mackay
  • Mackay is located in Custer County
  • Population from the 2020 Census: 493 people
  • Jump to TripAdvisor's Tourism page for Mackay <6>
• Atomic City
  (27 miles [43.5 km] to the southeast)
  • Jump to our Gazetteer entry for Atomic City
  • Atomic City is located in Bingham County
  • Population from the 2020 Census: 27 people
  • Jump to TripAdvisor's Tourism page for Atomic City <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 Arco. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Arco.

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

TripAdvisor Tourism Pages for Arco ...

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

Adding Arco to Our Gazetteer ...

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

From that list, the Arco post office opened in 1880.

We also found Arco in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for Arco.

Off-the-Road Links ...

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

The official website for State of Idaho: www.state.id.us/