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County · Iowa

Plymouth County

25,825Population
0.5 %Change since 2020
10Net migration
2.6 %Unemployment rate

Facts

Population
25,825 (2024)
Change since 2020
0.5 %
Net migration
10 (2023)
Unemployment rate
2.6 % (2025)
State
Iowa
Population base, April 2020
25,698 (2020)
Births
319 (2023)
Births per 1,000 residents, 2023
12.4
Deaths
277 (2023)
Deaths per 1,000 residents, 2023
10.7
Natural change, 2023
42
International migration
105 (2023)
Domestic migration
-95 (2023)
Net migration per 1,000, 2023
0.4
Postal code
IA
FIPS code
19149

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020252.63.1
PeriodValue
20252.6 %
20242.4 %
20232.2 %
20222.3 %
20212.9 %
20203.7 %
20192.3 %
20182.1 %
20172.5 %
20162.8 %
20152.8 %
20143.4 %

Population estimates, 2020–2024

2020202425.8K25.7K
PeriodValue
202425,825
202325,765
202225,714
202125,738
202025,694