Plymouth vs Thornton

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

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

Thornton has the higher population (534 vs 405 in Plymouth). Thornton has the higher median household income ($66,979 vs $66,250 in Plymouth). Plymouth has the higher median home value ($105,200 vs $99,000 in Thornton).

Population, income & housing

	Plymouth	Thornton
Population	405	534
Median age	38.0 yrs	34.3 yrs
Median household income	$66,250	$66,979
Median home value	$105,200	$99,000
Median gross rent	$830	$775
Housing units	182	246
Homeownership rate	78.8%	86.4%
Bachelor's degree or higher	10.8%	19.9%
Unemployment rate	0.9%	2.5%

Trends (ACS 5-year, 2019–2023)

	Plymouth	Thornton
Population	447 → 405 (-9.4%)	411 → 534 (+29.9%)
Median household income	$60,917 → $66,250 (+8.8%)	$48,542 → $66,979 (+38.0%)
Median home value	$82,500 → $105,200 (+27.5%)	$69,600 → $99,000 (+42.2%)
Median gross rent	$685 → $830 (+21.2%)	$541 → $775 (+43.3%)

Plymouth

Population

447405

Median household income

$60,917$66,250

Median home value

$82,500$105,200

Median gross rent

$685$830

Thornton

Population

411534

Median household income

$48,542$66,979

Median home value

$69,600$99,000

Median gross rent

$541$775

Age & race/ethnicity

Age distribution (share)

	Plymouth	Thornton
Under 5	6.2%	8.8%
5 to 17	22.5%	13.5%
18 to 24	7.2%	10.9%
25 to 34	10.4%	18.5%
35 to 44	17.5%	10.1%
45 to 54	9.4%	7.1%
55 to 64	13.3%	11.0%
65 to 74	8.9%	5.2%
75 and over	4.7%	14.8%

Race & ethnicity (share)

	Plymouth	Thornton
White (non-Hispanic)	97.5%	90.6%
Black or African American	0.5%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.2%	0.4%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.2%
Two or more races	1.0%	1.3%
Hispanic or Latino	0.7%	7.5%

Educational attainment (age 25+)

Share of adults 25+

	Plymouth	Thornton
No high school diploma	2.7%	4.8%
High school graduate	39.2%	31.9%
Some college or associate's	47.3%	43.4%
Bachelor's degree	9.6%	16.8%
Graduate or professional degree	1.2%	3.1%

Commute to work

How workers get to work (share)

	Plymouth	Thornton
Drove alone	81.2%	72.4%
Carpooled	11.3%	15.3%
Public transit	0.0%	0.0%
Walked	1.4%	5.6%
Bicycle	0.0%	0.0%
Worked from home	5.6%	5.6%
Other means	0.5%	1.1%

Housing

Units in structure (share)

	Plymouth	Thornton
1-unit, detached	89.6%	92.7%
1-unit, attached	0.0%	0.0%
2 to 4 units	2.7%	5.3%
5 to 19 units	6.6%	0.0%
20 or more units	0.0%	0.0%
Mobile home & other	1.1%	2.0%

Poverty & households

	Plymouth	Thornton
Poverty rate	7.7%	6.6%
Average household size	2.60	2.27
Mean commute (minutes)	21	24
Median year structure built	1951	1955