Plymouth vs Rock Falls

A side-by-side comparison of Plymouth and Rock Falls: population, income, housing, and more.

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

Plymouth has the higher population (405 vs 125 in Rock Falls). Rock Falls has the higher median household income ($66,875 vs $66,250 in Plymouth). Rock Falls has the higher median home value ($156,300 vs $105,200 in Plymouth).

Population, income & housing

	Plymouth	Rock Falls
Population	405	125
Median age	38.0 yrs	39.3 yrs
Median household income	$66,250	$66,875
Median home value	$105,200	$156,300
Median gross rent	$830	$967
Housing units	182	66
Homeownership rate	78.8%	78.7%
Bachelor's degree or higher	10.8%	31.4%
Unemployment rate	0.9%	5.8%

Trends (ACS 5-year, 2019–2023)

	Plymouth	Rock Falls
Population	447 → 405 (-9.4%)	136 → 125 (-8.1%)
Median household income	$60,917 → $66,250 (+8.8%)	$43,125 → $66,875 (+55.1%)
Median home value	$82,500 → $105,200 (+27.5%)	$137,500 → $156,300 (+13.7%)
Median gross rent	$685 → $830 (+21.2%)	$595 → $967 (+62.5%)

Plymouth

Population

447405

Median household income

$60,917$66,250

Median home value

$82,500$105,200

Median gross rent

$685$830

Rock Falls

Population

136125

Median household income

$43,125$66,875

Median home value

$137,500$156,300

Median gross rent

$595$967

Age & race/ethnicity

Age distribution (share)

	Plymouth	Rock Falls
Under 5	6.2%	9.6%
5 to 17	22.5%	18.4%
18 to 24	7.2%	16.0%
25 to 34	10.4%	2.4%
35 to 44	17.5%	13.6%
45 to 54	9.4%	11.2%
55 to 64	13.3%	12.0%
65 to 74	8.9%	5.6%
75 and over	4.7%	11.2%

Race & ethnicity (share)

	Plymouth	Rock Falls
White (non-Hispanic)	97.5%	100.0%
Black or African American	0.5%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.2%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	1.0%	0.0%
Hispanic or Latino	0.7%	0.0%

Educational attainment (age 25+)

Share of adults 25+

	Plymouth	Rock Falls
No high school diploma	2.7%	0.0%
High school graduate	39.2%	32.9%
Some college or associate's	47.3%	35.7%
Bachelor's degree	9.6%	21.4%
Graduate or professional degree	1.2%	10.0%

Commute to work

How workers get to work (share)

	Plymouth	Rock Falls
Drove alone	81.2%	83.1%
Carpooled	11.3%	7.7%
Public transit	0.0%	0.0%
Walked	1.4%	0.0%
Bicycle	0.0%	0.0%
Worked from home	5.6%	9.2%
Other means	0.5%	0.0%

Housing

Units in structure (share)

	Plymouth	Rock Falls
1-unit, detached	89.6%	100.0%
1-unit, attached	0.0%	0.0%
2 to 4 units	2.7%	0.0%
5 to 19 units	6.6%	0.0%
20 or more units	0.0%	0.0%
Mobile home & other	1.1%	0.0%

Poverty & households

	Plymouth	Rock Falls
Poverty rate	7.7%	11.2%
Average household size	2.60	2.66
Mean commute (minutes)	21	18
Median year structure built	1951	1956