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

The city of Omro is located in Winnebago County<1>.

While we don't have a date for the founding of Omro, you might consider that their post office opened in 1850.

From the  Census Estimates for 2019, Omro has a population of 3,583 people<2> (see below for details).

Omro is 750 feet [229 m] above sea level.<3>.

Time Zone: Omro lies in the Central Time Zone (CST/CDT) and observes daylight saving time

Area Codes for Omro: 920 & 274<4>

The ZIP code for Omro: 54963<5>

Population Details ...

Taken from the 2019 Census Estimates, Omro had an population of 3,583 people. This is an increase of 1.88% since the 2010 Census (or an increase of 12.78% since the 2000 Census).

At the time of the 2010 Census, Omro had a population of 3,517 people. This makes Omro the county's 7th most populous community.

The population of Omro represents 0.06% of the total population of Wisconsin (which has 5,686,986 people), making it the state's 249th most populous community.

With a 2010 count of 3,517 people, the population of Omro increased 10.7% from the 2000 Census (which had a count of 3,177 people).

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

Communities Also Named Omro ...

Using our Gazetteer, we found another community named Omro - it's located in New York.

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

Communities near Omro ...

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

  • Oshkosh
    (10 miles [16.1 km] to the east)
  • Neenah
    (17 miles [27.4 km] to the northeast)
  • Fox Crossing
    (18 miles [29 km] to the northeast)
  • Menasha
    (19 miles [30.6 km] to the northeast)
    • Menasha is located in Winnebago County
    • Jump to our Gazetteer entry for Menasha
    • Population from the 2020 Census: 17,796 people
  • Ripon
    (14 miles [22.5 km] to the south)
  • Berlin
    (11 miles [17.7 km] to the southwest)
  • Winneconne
    (5 miles [8 km] to the north)
    • Winneconne is located in Winnebago County
    • Jump to our Gazetteer entry for Winneconne
    • Population from the 2020 Census: 2,480 people
  • Redgranite
    (17 miles [27.4 km] to the west)
  • Rosendale
    (16 miles [25.7 km] to the south)
    • Rosendale is located in Fond du Lac County
    • Jump to our Gazetteer entry for Rosendale
    • Population from the 2020 Census: 1,026 people
  • Green Lake
    (17 miles [27.4 km] to the southwest)
    • Green Lake is located in Green Lake County
    • Jump to our Gazetteer entry for Green Lake
    • Population from the 2020 Census: 959 people

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

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

We also have a detailed list of newspapers that have been published in the area around Omro. Our list includes 7 papers. See our Newspapers Page for Omro.

Adding Omro to Our Gazetteer ...

We originally found mention of Omro 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 (so far) for Omro was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the Omro post office opened in 1850.

For more details, see References and Mentions for Omro.

Footnotes ...

<1>If you're interested in how the shape of Wisconsin's counties, including Winnebago, 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 Omro.
<3>The elevation is an estimate for the area around Omro - it will be higher in some places and lower in others.
<4>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 920 code has been Overlayed with the 274 area code. New phone numbers in the Omro area will be assigned with one of these codes: 920 or 274. As a result, placing a call in the Omro area will require 10-digit dialing (where you enter both the area code and then the phone number).
<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 Omro). When looking for a ZIP Code, whether Omro or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<6>A copy of the Blevins & Helbock Post Office list with background information can be found at:

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