Marble Rock, IA Profile
Marble Rock, IA, population 322, is located
in Iowa's Floyd county,
about 91.0 miles from Cedar Rapids and 101.7 miles from Des Moines.
Through the 90's Marble Rock's population has declined by about 10%.
It is estimated that in the first 5 years of the past decade the population of Marble Rock has declined by about 1%. Since 2005 Marble Rock's population has grown by about 1%.
Population Statistics
Gender
| Population by Gender |
|---|
| Males | 50% |
| Females | 50% |
Race
| Population by Race |
|---|
| White | 99% |
| African American | 0% |
| Native American | 0% |
| Asian | 0% |
| Hawaiian | 0% |
| Other/Mixed | 1% |
Age
| Median Age |
|---|
| Population | 9.99 |
| Males | 9.99 |
| Females | 9.99 |
| Males by Age | Females by Age |
|---|
| Under 20 | 9.99% | | Under 20: | 9.99% |
| 20 to 40 | 9.99% | | 20 to 40: | 9.99% |
| 40 to 60 | 9.99% | | 40 to 60: | 9.99% |
| Over 60 | 9.99% | | Over 60: | 9.99% |
Size
| Population by Year | Change Rate |
|---|
| 2000 | 326 | N/A |
| 2001 | 321 | -1.53% |
| 2002 | 320 | -0.31% |
| 2003 | 321 | 0.31% |
| 2004 | 320 | -0.31% |
| 2005 | 319 | -0.31% |
| 2006 | 321 | 0.63% |
| 2007 | 320 | -0.31% |
| 2008 | 323 | 0.94% |
| 2009 | 322 | -0.31% |
Economics
| Household Income |
|---|
| Median | $35,500 |
Location
| Elevation | 1,000 feet above sea level |
| Land Area | 0.8 Square Miles |
