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ZIP code 51040

Onawa, IA · Monona County

About ZIP code 51040

  • ZIP code 51040 is in Onawa, Monona County, Iowa.
  • About 3,500 people live in it, which is 10.4 people per square mile.
  • Time zone: Central Standard Time.
  • The middle of the ZIP code is at 42.031, -96.071.

A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.

Onawa, IA

ZIP code 51040 is the post office name for Onawa, IA. 2,839 people live in Onawa. Typical household income is $62,143. A typical home costs $145,800.

  • Stronger than most towns on: Short commute, Clean air and low disaster risk and Walkability.
  • Weaker than most towns on: Diversity & community, Home internet and working from home and Property taxes.

See all figures for Onawa

Nearby ZIP codes

ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.