Marble Rock, IA
Population 199 · Iowa
About Marble Rock, IA
Marble Rock is a small community in Iowa with a population of 199 residents. The median household income is $65,938 per year, which is near the national average. The median age in Marble Rock is 55.1 years.
Housing in Marble Rock has a median home value of $59,300 and median monthly rent of $592. Of the 117 total housing units, the majority are owner-occupied, with 74 owner-occupied and 25 renter-occupied units.
The unemployment rate in Marble Rock is 5.2% and the poverty rate is 7.0%. 3.3% of residents hold a bachelor's degree or higher. The average commute time is 31.8 minutes.
Cost of Living in Marble Rock, IA
Compared to national averages, Marble Rock has a median household income of $65,938 (12% below the national median of $75,149). Home values average $59,300, which is 76% below the national median. Monthly rent at $592 is 49% below the US average of $1,163. Within Iowa, Marble Rock's income is 3% below the state average of $67,947, and home values are 55% below the state median of $132,237.
Why Live in Marble Rock, IA?
Marble Rock offers affordable housing with a median home value of $59,300, below the US average of $244,900, and rent that’s lower than the national average at $592/month, and a low poverty rate of 7.0%, better than the national average.
Potential considerations include median household income ($65,938) that falls below the national average. However, Marble Rock’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Marble Rock has a population of 199 with a median age of 55.1 years. Compare Marble Rock with other cities to see how it stacks up, or explore all cities in Iowa.
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Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Marble Rock
What is the population of Marble Rock, IA?
The population of Marble Rock, IA is 199 according to the latest Census data.
What is the median household income in Marble Rock?
The median household income in Marble Rock, IA is $65,938 per year.
What is the median home value in Marble Rock?
The median home value in Marble Rock, IA is $59,300.
What is the average rent in Marble Rock?
The median monthly rent in Marble Rock, IA is $592.
What is the unemployment rate in Marble Rock?
The unemployment rate in Marble Rock, IA is 5.2%.