City · United States

Johnston

Johnston is a city in Polk County, Iowa, United States. The population was 24,064 in the 2020 census, a large increase from the 8,649 population in 2000. It is part of the Des Moines–West Des Moines Metropolitan Statistical Area.

Good to know

• Population: 20,871.
• Founded: 1969.
• Area: 47.5 sq km.
• Elevation: 253 m.
• Timezone: America/Chicago.

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