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Welcome to Adelphi ...

The village of Adelphi is located in Ross County<1>.

The pronunciation of Adelphi: uh-DEL-feye<2>

While we don't have a date for the founding of Adelphi, you might consider that their post office opened  in 1808.

From the  Census Estimates for 2019, Adelphi has a population of 377 people<3> (see below for details).

Adelphi is 830 feet [253 m] above sea level.<4>.

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

Area Codes for Adelphi: 740 & 220<5>

The ZIP code for Adelphi: 43101<6>

Population Details ...

Taken from the 2019 Census Estimates, Adelphi had an population of 377 people. This is a decrease of 0.79% since the 2010 Census (or an increase of 1.62% since the 2000 Census).

At the time of the 2010 Census, Adelphi had a population of 380 people. This makes Adelphi the county's 6th most populous community.

With a 2010 count of 380 people, the population of Adelphi increased 2.43% from the 2000 Census (which had a count of 371 people).

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

Communities Also Named Adelphi ...

Using our Gazetteer, we found that there are two Ohio communities named Adelphi: This one is located in Ross County and the other is located in Pickaway County.

Beyond Ohio, there are 4 communities that are also named Adelphi - they are located in Iowa, Maryland and New York.

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

Communities near Adelphi ...

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

  • Lancaster
    (18 miles [29 km] to the northeast)
  • Chillicothe
    (15 miles [24.1 km] to the southwest)
  • Circleville
    (13 miles [20.9 km] to the northwest)
    • Note: The GPS coordinates that we are using for Circleville have been provided by the GNIS.<8> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Circleville
    • Circleville is located in Pickaway County
    • Population from the 2020 Census: 14,158 people
    • Jump to TripAdvisor's Tourism page for Circleville <7>
  • Logan
    (18 miles [29 km] to the east)
  • Kingston
    (8 miles [12.9 km] to the west)
  • Amanda
    (12 miles [19.3 km] to the north)
  • Stoutsville
    (10 miles [16.1 km] to the northwest)
    • Note: The GPS coordinates that we are using for Stoutsville have been provided by the GNIS.<8> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Stoutsville
    • Stoutsville is located in Fairfield County
    • Population from the 2020 Census: 566 people
    • Jump to TripAdvisor's Tourism page for Stoutsville <7>
  • Sugar Grove
    (15 miles [24.1 km] to the northeast)
    • Note: The GPS coordinates that we are using for Sugar Grove have been provided by the GNIS.<8> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Sugar Grove
    • Sugar Grove is located in Fairfield County
    • Population from the 2020 Census: 426 people
    • Jump to TripAdvisor's Tourism page for Sugar Grove <7>
  • Tarlton
    (6 miles [9.7 km] to the north)
  • Huntsville
    (5 miles [8 km] to the north)
    • Note: The GPS coordinates that we are using for Huntsville have been provided by the GNIS.<8> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Huntsville
    • Huntsville is located in Pickaway County

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

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

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

TripAdvisor Tourism Pages for Adelphi ...

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

Adding Adelphi to Our Gazetteer ...

We originally found mention of Adelphi 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 Adelphi was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<9>

X2X - From that list, the Adelphi post office opened in 1808.

We also found Adelphi in the book titled U.S. Post Offices (Oct. 1846).

For more details, see References and Mentions for Adelphi.

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

The official website for Ross County: www.co.ross.oh.us/

The official website for State of Ohio: https://ohio.gov/

Footnotes ...

<1>If you're interested in how the shape of Ohio's counties, including Ross, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The pronunciation we've provided is our attempt to give a phonetic pronunciation for Adelphi. While it might not be exactly right, hopefully it will be close. If we have it wrong or there's a better way to pronounce the name, please contact us through our Feedback Page.
<3>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Adelphi.
<4>The elevation is an estimate for the area around Adelphi - it will be higher in some places and lower in others.
<5>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 740 code has been Overlayed with the 220 area code. New phone numbers in the Adelphi area will be assigned with one of these codes: 740 or 220. As a result, placing a call in the Adelphi area will require 10-digit dialing (where you enter both the area code and then the phone number).
<6>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 village (such as Adelphi). When looking for a ZIP Code, whether Adelphi or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<7>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<8>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.
<9>A copy of their list with background information can be found at:

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




 

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This page was last modified/updated: 26 Jul 2025