County

Plymouth County, IA

9 ZIP codes  ·  9 cities  ·  Iowa

👥24,186Population
💰$81,304Median HH Income≈ Avg
🎂41.6Median Age
🏠$213,806Median Home Value▼ 23% below avg
🎓39.3%College Grads≈ Avg
📊1.8%Unemployment▼ 63% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 50.5% Female 49.5% ♀

Race & Ethnicity

White: 88.5%Hispanic: 6.5%Black: 2.6%Asian: 0.4%Other: 1.8%Race
White88.5%
Hispanic6.5%
Black2.6%
Asian0.4%
Other1.8%

Age Breakdown

Under 5
5%
5–17
19%
18–24
7%
25–44
23%
45–64
26%
65+
8%

Key Indicators

Median Age41.6 yrs
Avg HH Size2.44
Below Poverty6.3% ▼ 37% below avg
College Grads39.3% ≈ Avg
Unemployment1.8% ▼ 63% below avg
No HS Diploma135 (0.9%)
HS Graduate5,600 (35.7%)
Some College1,717 (10.9%)
Associates2,073 (13.2%)
Bachelors2,337 (14.9%)
Graduate Degree3,827 (24.4%)

Education

No HS: 0.9%HS Grad: 35.7%Some College: 10.9%Associates: 13.2%Bachelors: 14.9%Graduate: 24.4%Edu
No HS0.9%
HS Grad35.7%
Some College10.9%
Associates13.2%
Bachelors14.9%
Graduate24.4%
Housing & Income

Housing Tenure

Owner: 73.2%Renter: 26.8%Tenure
Owner73.2%
Renter26.8%

Home Value Distribution

Under $50k
7%
$50k–$100k
9%
$100k–$150k
14%
$150k–$200k
17%
$200k–$300k
25%
$300k–$500k
23%
Over $500k
5%

Financials

Median HH Income$81,304 ≈ Avg
Median Home Value$213,806 ▼ 23% below avg
Home/Income Ratio2.6x (nat avg ~3.5x)
Median Rent$894/mo
Total Housing Units10,421
Vacant Units598

Income Distribution

Under $25k
13%
$25k–$50k
12%
$50k–$75k
21%
$75k–$100k
18%
$100k–$150k
19%
$150k–$200k
10%
Over $200k
8%
Employment & Commute

How People Get to Work

Drove Alone
88%
Public Transit
0%
Walked
3%
Work From Home
9%

Commute Time

Under 15 min
49%
15–30 min
25%
30–45 min
18%
Over 45 min
7%
Housing Stock

Year Built

Before 1940
3%
1940s–1950s
12%
1960s–1970s
11%
1980s–1990s
13%
2000+
62%
About Plymouth County, IA

Plymouth County is located in Iowa and encompasses 9 ZIP codes spanning 9 cities and communities. The county has an estimated population of 24,186 residents. With a median age of 41.56, it is a middle-aged county.

Plymouth County has a middle-income economic profile. The median household income of $81,303 is near the national average. Unemployment stands at 1.8%, well below the national average. The poverty rate of 6.3% is well below the national average.

Housing in Plymouth County is an affordable housing market, with a median home value of $213,806 — below the national average. Monthly median rent is approximately $893. Homeownership rates are high at 73.2%, reflecting a largely residential, stable population.

The residents of Plymouth County are primarily White (88.54%). Educational attainment is moderately educated — 39.3% of adults hold a bachelor's degree or higher, near the national average.

Plymouth County, IA is a middle-income area in Iowa. The 9 ZIP codes within the county each have their own character — browse the full list below to find the right community, whether you're looking for affordable housing, strong schools, or economic opportunity.

ZIP Codes in Plymouth County
ZIPCityPopulationMedian IncomeMedian HomeMedian RentUnemp.College
51001 Akron 2,292 $67,639 $177,700 $712 0.7% 40.1%
51008 Brunsville 180 $67,125 $136,300 $1,194 0.0% 33.3%
51024 Hinton 2,048 $108,892 $317,100 $1,005 2.0% 38.0%
51028 Kingsley 2,047 $74,655 $195,000 $689 0.6% 46.5%
51031 Le Mars 12,785 $74,978 $208,900 $903 1.5% 40.8%
51038 Merrill 1,512 $88,864 $181,800 3.0% 33.8%
51045 Oyens 75 $96,250 $155,000 1.8% 42.6%
51050 Remsen 2,909 $101,691 $219,100 $1,014 4.2% 32.0%