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A Gazetteer for the United States and Canada
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Welcome to Union ...

Union is located in Knox County<1>.

While we don't have a date for the founding of Union, you might get a feel for it by knowing that the earliest mention that we've found (so far) was in a book dated 1895.

From the  Census Estimates for 2019, Union has a population of 2,260 people<2> (see below for details).

Union is 90 feet [27 m] above sea level.<3>.

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

Area Code for Union: 207

The ZIP code for Union: 04862<4>

Population Details ...

Taken from the 2019 Census Estimates, Union had an population of 2,260 people (or an increase of 2.31% since the 2000 Census).

At the time of the 2010 Census, Union had a population of 2,259 people (which is 5.69% of the total population of Knox County). This makes Union the county's 7th most populous community.

The population of Union represents 0.17% of the total population of Maine (which has 1,328,361 people), making it the state's 152nd most populous community.

With a 2010 count of 2,259 people, the population of Union increased 2.26% from the 2000 Census (with a count of 2,209 people).

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

Communities Also Named Union ...

Using our Gazetteer, we found that there are 121 communities that are also named Union - they are located in Alabama (10), Arizona, Arkansas (5), California (3), Colorado, Connecticut, Florida, Georgia (10), Illinois (5), Indiana, Iowa (2), Kansas (5), Kentucky (3), Louisiana, Michigan, Minnesota, Mississippi (6), Missouri (3), Montana, Nebraska, Nevada, New Hampshire, New Jersey (3), New Mexico, New York (3), North Carolina (5), North Dakota, Nova Scotia, Ohio (3), Oklahoma (3), Ontario (4), Oregon, Pennsylvania, Prince Edward Island, South Carolina (4), Tennessee (6), Texas (9), Utah, Virginia (2), Washington (2), West Virginia (3) and Wisconsin (3).

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

Communities near Union ...

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

  • Rockland
    (11 miles [17.7 km] to the southeast)
  • Belfast
    (19 miles [30.6 km] to the northeast)
  • Waldoboro
    (9 miles [14.5 km] to the southwest)
  • Warren
    (6 miles [9.7 km] to the south)
  • Camden
    (10 miles [16.1 km] to the east)
    • Note: The GPS coordinates that we are using for Camden have been provided by the GNIS.<6> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Camden
    • Camden is located in Knox County
    • Population from the 2020 Census: 4,806 people
    • Jump to TripAdvisor's Tourism page for Camden <5>
  • Rockport
    (9 miles [14.5 km] to the east)
    • Note: The GPS coordinates that we are using for Rockport have been provided by the GNIS.<6> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Rockport
    • Rockport is located in Knox County
    • Population from the 2020 Census: 3,389 people
    • Jump to TripAdvisor's Tourism page for Rockport <5>
  • Thomaston
    (10 miles [16.1 km] to the southeast)
  • Windsor
    (16 miles [25.7 km] to the northwest)
    • Note: The GPS coordinates that we are using for Windsor have been provided by the GNIS.<6> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Windsor
    • Windsor is located in Kennebec County
    • Population from the 2020 Census: 2,620 people
    • Jump to TripAdvisor's Tourism page for Windsor <5>
  • Saint George
    (13 miles [20.9 km] to the south)
    • Note: We haven't been able to verify our GPS coordinates for Saint George. Although the coordinates have been estimated, they should be in the vicinity.<7>
    • Jump to our Gazetteer entry for Saint George
    • Saint George is located in Knox County
    • Population from the 2020 Census: 2,578 people
  • Jefferson
    (8 miles [12.9 km] to the west)
    • Note: The GPS coordinates that we are using for Jefferson have been provided by the GNIS.<6> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Jefferson
    • Jefferson is located in Lincoln County
    • Population from the 2020 Census: 2,470 people
    • Jump to TripAdvisor's Tourism page for Jefferson <5>

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

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

We also have a detailed list of newspapers that have been published in the area around Union. Our list includes 4 papers. See our Newspapers Page for Union.

TripAdvisor Tourism Pages for Union ...

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

Adding Union to Our Gazetteer ...

We originally found mention of Union 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 Union was in the book titled Business Atlas and Shippers' Guide (1895).

We also found Union on a map titled Rand McNally Map of Maine (1897).

For more details, see References and Mentions for Union.

Footnotes ...

<1>If you're interested in how the shape of Maine's counties, including Knox, 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 Union.
<3>The elevation is an estimate for the area around Union - 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 community (such as Union). When looking for a ZIP Code, whether Union 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>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.
<7>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.