The Ankeny Brief

Reference · Ankeny fast facts

Ankeny, Iowa fast facts: ZIP codes, area code, county, and the numbers people ask for.

The quick reference for Ankeny, Iowa: the ZIP codes, area code, county, and the handful of facts you came here to grab. Everything's on one page, and if you want the deeper numbers on population, housing, and taxes, we've linked those too.

The quick answer

Ankeny, Iowa uses two ZIP codes: 50021 and 50023. The area code is 515, and the town is in Polk County, just north of Des Moines, in the Central Time Zone.

The facts

Ankeny at a glance

ZIP codes50021 & 50023
Area code515
CountyPolk County
StateIowa
Time zoneCentral (CST / CDT)
Elevation~940 ft
Population~80,000 (2026 est.)
Location~10 mi N of Des Moines
Founded / platted1875
Incorporated1903 (city in 1961)
Named afterJohn Fletcher Ankeny
School districtAnkeny Community
Which ZIP?

50021 vs. 50023

Ankeny is split across two ZIP codes. 50021 is the original, generally covering the older west and central parts of town. 50023 was added as the city grew and generally covers the eastern and northern growth areas, including much of Prairie Trail. They overlap around the middle, so the surest way to know which applies is to check the specific address. Both share the 515 area code and sit in Polk County.

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Go deeper

The bigger numbers

For the full picture, see Ankeny by the numbers (population, schools, crime, and more), the cost of living, the neighborhoods guide, and the history of how Ankeny grew from a rail stop into a city of 80,000.

Quick answers

Ankeny fast facts: FAQ

What is the ZIP code for Ankeny, Iowa?

Ankeny has two ZIP codes: 50021 and 50023. 50021 generally covers the older west and central town; 50023 covers the eastern and northern growth areas. Both are in the 515 area code and Polk County.

Is Ankeny 50021 or 50023?

Both, depending on the address. 50021 is the original ZIP; 50023 was added for the growth areas. Check the specific address to be sure.

What area code is Ankeny, Iowa?

Area code 515, the code for Des Moines and central Iowa.

What county is Ankeny, Iowa in?

Polk County, Iowa's most populous county, immediately north of Des Moines.

What time zone is Ankeny in?

Central Time (CST in winter, CDT in summer), the same as the rest of Iowa.

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Sources: U.S. Postal Service and ZIP-code directories (ZIP codes 50021 and 50023, area code 515, Polk County, elevation); U.S. Census Bureau & World Population Review (population); City of Ankeny and the Ankeny Area Historical Society (founding, incorporation, name). Population is a 2026 estimate; the 2024 Special Census counted 76,207. Confirm a specific ZIP by the exact address.