Charles City vs Marble Rock

A side-by-side comparison of Charles City and Marble Rock: population, income, housing, and more.

Charles City and Marble Rock are places in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Charles City has the higher population (7,321 vs 199 in Marble Rock). Marble Rock has the higher median household income ($65,938 vs $56,734 in Charles City). Charles City has the higher median home value ($118,900 vs $59,300 in Marble Rock).

Population, income & housing

	Charles City	Marble Rock
Population	7,321	199
Median age	42.7 yrs	55.1 yrs
Median household income	$56,734	$65,938
Median home value	$118,900	$59,300
Median gross rent	$628	$592
Housing units	3,621	117
Homeownership rate	65.8%	74.7%
Bachelor's degree or higher	15.6%	3.3%
Unemployment rate	4.9%	5.2%

Trends (ACS 5-year, 2019–2023)

	Charles City	Marble Rock
Population	7,396 → 7,321 (-1.0%)	321 → 199 (-38.0%)
Median household income	$41,060 → $56,734 (+38.2%)	$51,875 → $65,938 (+27.1%)
Median home value	$93,600 → $118,900 (+27.0%)	$54,300 → $59,300 (+9.2%)
Median gross rent	$530 → $628 (+18.5%)	$570 → $592 (+3.9%)

Charles City

Population

7,3967,321

Median household income

$41,060$56,734

Median home value

$93,600$118,900

Median gross rent

$530$628

Marble Rock

Population

321199

Median household income

$51,875$65,938

Median home value

$54,300$59,300

Median gross rent

$570$592

Age & race/ethnicity

Age distribution (share)

	Charles City	Marble Rock
Under 5	4.8%	1.0%
5 to 17	17.4%	12.6%
18 to 24	7.4%	9.5%
25 to 34	11.0%	7.5%
35 to 44	12.3%	6.0%
45 to 54	11.4%	13.1%
55 to 64	11.9%	19.6%
65 to 74	11.8%	23.1%
75 and over	12.1%	7.5%

Race & ethnicity (share)

	Charles City	Marble Rock
White (non-Hispanic)	86.0%	95.5%
Black or African American	2.0%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	3.0%	0.0%
Native Hawaiian & Pacific Islander	0.1%	0.0%
Some other race	0.0%	0.0%
Two or more races	2.8%	4.5%
Hispanic or Latino	6.2%	0.0%

Educational attainment (age 25+)

Share of adults 25+

	Charles City	Marble Rock
No high school diploma	5.8%	7.2%
High school graduate	41.8%	50.3%
Some college or associate's	36.8%	39.2%
Bachelor's degree	11.2%	2.6%
Graduate or professional degree	4.4%	0.7%

Commute to work

How workers get to work (share)

	Charles City	Marble Rock
Drove alone	77.8%	82.7%
Carpooled	10.5%	12.7%
Public transit	0.0%	0.0%
Walked	1.2%	3.6%
Bicycle	0.9%	0.0%
Worked from home	9.1%	0.9%
Other means	0.4%	0.0%

Housing

Units in structure (share)

	Charles City	Marble Rock
1-unit, detached	74.7%	88.9%
1-unit, attached	1.7%	0.0%
2 to 4 units	9.1%	0.9%
5 to 19 units	8.3%	8.5%
20 or more units	6.2%	0.0%
Mobile home & other	0.0%	1.7%

Poverty & households

	Charles City	Marble Rock
Poverty rate	13.4%	7.0%
Average household size	2.17	2.01
Mean commute (minutes)	15	32
Median year structure built	1962	1950