About Plymouth County
Metro Area 
$254,052Median Home Value
$203,604
Sioux City Metro Area
$1,167Median Rent
$1,107
Sioux City Metro Area
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Demographics
Plymouth County's population is made up of 62% married, 24% single, 8% divorced and 6% widowed. Baby Boomers make up the largest percentage of the population at 39%, while Gen Z have the second largest segment at 27%. Homeowners make up 75% of the population in Plymouth County.
25,621Population
143,885
Sioux City Metro Area
29Population Density
- 51% Male
- 49% Female
41 Median Age
36
Sioux City Metro Area
Employment
The Per Capita income in Plymouth County is $40,150. The Median Household Income is $79,963
$40,150Income Per Capita
$35,178
Sioux City Metro Area
$79,963Median Household Income
$70,718
Sioux City Metro Area
6% Poverty Rate
12%
Sioux City Metro Area
2% Unemployment Rate
3%
Sioux City Metro Area
Amenities
Amenities in Plymouth County
Real Estate
$254,052Median Home Value
$203,604
Sioux City Metro Area
$1,167Median Rent
$1,107
Sioux City Metro Area
2Average Household Size
3
Sioux City Metro Area
Occupancy Type
Renters
25%
Home Owners
75%
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