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COUNTY · 2020 ACS

Plymouth County

Iowa · 25,698 residents · 862.828 sq mi
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The short version

Plymouth County has roughly average household income, with a median household income of $71,147. Population has held roughly steady since 2000. Median home value has more than doubled since 2000, reaching $172,600.

At a glance
Wealthier
above the US median
US median: $66,278
Mid-age
median age 40.6
US median: 38.8
Less educated
22% hold a bachelor's degree
US average: 33%
Less affordable
home values up 27%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
25,698
+3%since 2000
from 24,849 in 2000
1990 – 2025
Population density
30 / sq mi
+3%since 2000
from 29 / sq mi in 2000
US average: 280
Median age
40.6
+7%since 2000
from 37.8 in 2000
US average: 38.8
Population, 1990 – 2024
23K24K25K25K26K1990201020202024Plymouth County
202426K
1990201020202024
Section 02

Income & economy

Median household income
$71,147
+14%inflation adjusted, since 2000
from $41,638 in 2000
US average: $66,278
1990 – 2024
Per capita income
$35,078
+80%since 2000
from $19,442 in 2000
US average: $35,364
Households earning $100K+
47.5%
+16.1 ptssince 2009
from 31.5% in 2009
US average: 43.9%
Poverty rate
7.2%
+1.2 ptssince 2000
from 6.0% in 2000
US average: 12.8%
Workforce by industry, 2020
Retail trade19.7%
US avg: 10%
Information11.4%
US avg: 11.1%
Agriculture, forestry, fishing9.2%
US avg: 1.7%
Construction9%
US avg: 1.2%
Finance & insurance6%
US avg: 5.5%
Wholesale trade5.6%
US avg: 6.7%
Other services4.6%
US avg: 6.6%
Professional, scientific, technical4.5%
US avg: 4.7%
Public administration3.8%
US avg: 4.7%
Transportation & warehousing2.7%
US avg: 2.5%
Education & health services1.5%
US avg: 0.8%
Arts, entertainment, food1.2%
US avg: 2%
Manufacturing0.2%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$172,600
+27%inflation adjusted, since 2000
from $90,100 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$714
+14%inflation adjusted, since 2000
from $416 in 2000
US average: $1,124
Owner-occupied
77.0%
−0.5 ptssince 2000
from 77.5% in 2000
23.0% rent
Afford Score
2.4
+12%since 2000
from 2.2 in 2000
1990 – 2024
RELATED:See current rent listings in Plymouth County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic97.4%(24,215)
Black0.3%(67)
Hispanic / Latino1.3%(328)
Asian0.3%(65)
Other0%
Diversity Score4.6%(1,141)
Segregation Score0%
2020
White, non-Hispanic89.3%(22,941)
Black1.4%(354)
Hispanic / Latino5.8%(1,496)
Asian0.4%(111)
Other1.3%(334)
Diversity Score21.2%(5,452)
Segregation Score16.5%(4,233)
Diversity Score
21
+362%since 2000
from 5 in 2000
1990 – 2024
Segregation Score
16
Section 05

Education

Bachelor's degree or higher
22.3%
+3.0 ptssince 2000
from 19.3% in 2000
US average: 32.9%
High school or higher
93.6%
+6.2 ptssince 2000
from 87.4% in 2000
US average: 88.5%
Graduate degree
5.4%
+1.0 ptssince 2000
from 4.5% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
18.3 min
+37%since 2000
from 13.3 min in 2000
US average: 26.9
Drive alone to work
80.2%
−0.8 ptssince 2009
from 81.0% in 2009
US average: 75.1%
No vehicle available
4.3%
−0.2 ptssince 2009
from 4.5% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
2.1%
−0.2 ptssince 2011
from 2.3% in 2011
US average: 5.4%
Labor force participation
70.0%
−3.0 ptssince 2011
from 73.0% in 2011
US average: 63.4%
Management & professional
32.6%
−27.8 ptssince 2009
from 60.4% in 2009
US average: 39.3%
Section 08

People & community

Male
49.2%
−0.6 ptssince 2009
from 49.8% in 2009
Female
50.8%
+0.6 ptssince 2009
from 50.2% in 2009
Foreign born
3.6%
+2.4 ptssince 2009
from 1.2% in 2009
US average: 13.5%
Uninsured
5.1%
−89.0 ptssince 2013
from 94.1% in 2013
US average: 8.8%
Drill deeper

Places similar to Plymouth County

Teller County
Pop 24,756
Monroe County
Pop 32,023
Baker County
Pop 29,737
Blaine County
Pop 25,517
Places similar to Plymouth County
Head to head

Compare Plymouth County to nearby counties

PLYMOUTH COUNTY VS
Union County
Income$89,636+26%
Home value$301,100+74%
Population17,402−32%
SEE FULL COMPARISON →
PLYMOUTH COUNTY VS
Sioux County
Income$86,098+21%
Home value$250,100+45%
Population36,774+43%
SEE FULL COMPARISON →
PLYMOUTH COUNTY VS
Woodbury County
Income$73,658+4%
Home value$183,200+6%
Population106,649+315%
SEE FULL COMPARISON →
PLYMOUTH COUNTY VS
Cherokee County
Income$71,269same
Home value$158,700−8%
Population11,369−56%
SEE FULL COMPARISON →
Frequently asked

How many people live in Plymouth County, Iowa?

Plymouth County, Iowa has about 25,698 residents according to the 2020 American Community Survey.

What is the median household income in Plymouth County, Iowa?

The typical household in Plymouth County, Iowa earns about $71,147 a year. Half of households make more than that, and half make less.

Is Plymouth County, Iowa expensive?

In Plymouth County, Iowa, the median home is worth about $172,600, and the typical rent is about $714 a month.

How educated are people in Plymouth County, Iowa?

About 22.3% of adults age 25 and over in Plymouth County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Plymouth County, Iowa?

About 7.2% of people in Plymouth County, Iowa live below the federal poverty line.

Has Plymouth County, Iowa grown since 1990?

Yes, Plymouth County, Iowa has grown since 1990. The population has added about 2,310 residents, a change of about 10 percent over that period.

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Explore from here

6 census tracts
Census Tract 9701Census Tract 9706Census Tract 9702Census Tract 9703Census Tract 9705Census Tract 9704
11 ZIP codes
ZIP 51031ZIP 51108ZIP 51109ZIP 51050ZIP 51001ZIP 51028ZIP 51024ZIP 51038ZIP 51062ZIP 51008ZIP 51045
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →