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A Gazetteer for the United States and Canada
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Welcome to Marble Rock ...

The city of Marble Rock is located in Floyd County<1>.

While we don't have a date for the founding of Marble Rock, you might consider that their post office opened in 1859.

From the  Census Estimates for 2019, Marble Rock has a population of 290 people<2> (see below for details).

Marble Rock is 990 feet [302 m] above sea level.<3>.

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

Area Code for Marble Rock: 641

The ZIP code for Marble Rock: 50653<4>

Population Details ...

Taken from the 2019 Census Estimates, Marble Rock had an population of 290 people. This is a decrease of 5.54% since the 2010 Census (or a decrease of 11.04% since the 2000 Census).

At the time of the 2010 Census, Marble Rock had a population of 307 people. This makes Marble Rock the county's 6th most populous community.

The population of Marble Rock represents 0.01% of the total population of Iowa (which has 3,046,355 people), making it the state's 578th most populous community.

With a 2010 count of 307 people, the population of Marble Rock decreased 5.83% from the 2000 Census (with a count of 326 people).

More information can be found on the Census Page for Marble Rock.

Communities Also Named Marble Rock ...

Using our Gazetteer, we found another community named Marble Rock - it's located in Ontario.

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

Communities near Marble Rock ...

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

  • Charles City
    (12 miles [19.3 km] to the northeast)
  • Nashua
    (16 miles [25.7 km] to the east)
    • Nashua is located in Chickasaw County
    • Jump to our Gazetteer entry for Nashua
    • Population from the 2020 Census: 1,571 people
    • Jump to TripAdvisor's Tourism page for Nashua <5>
  • Nora Springs
    (14 miles [22.5 km] to the northwest)
  • Clarksville
    (16 miles [25.7 km] to the southeast)
  • Sheffield
    (17 miles [27.4 km] to the west)
    • Sheffield is located in Franklin County
    • Jump to our Gazetteer entry for Sheffield
    • Population from the 2020 Census: 1,096 people
  • Greene
    (5 miles [8 km] to the southeast)
  • Rockwell
    (16 miles [25.7 km] to the west)
  • Allison
    (14 miles [22.5 km] to the south)
  • Rockford
    (7 miles [11.3 km] to the northwest)
  • Dumont
    (15 miles [24.1 km] to the south)

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

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

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

TripAdvisor Tourism Pages for Marble Rock ...

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

Adding Marble Rock to Our Gazetteer ...

We originally found mention of Marble Rock 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 Marble Rock was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the Marble Rock post office opened in 1859.

For more details, see References and Mentions for Marble Rock.

Footnotes ...

<1>If you're interested in how the shape of Iowa's counties, including Floyd, 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 Marble Rock.
<3>The elevation is an estimate for the area around Marble Rock - 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 city (such as Marble Rock). When looking for a ZIP Code, whether Marble Rock 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>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/