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ZIP code 51109

Sioux City, IA · Plymouth County

About ZIP code 51109

  • ZIP code 51109 is in Sioux City, Plymouth County, Iowa.
  • About 3,606 people live in it, which is 79.1 people per square mile.
  • It also reaches into Woodbury County.
  • Time zone: Central Standard Time.
  • The middle of the ZIP code is at 42.599, -96.478.

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.

Sioux City, IA

ZIP code 51109 is the post office name for Sioux City, IA. 86,101 people live in Sioux City. Typical household income is $68,906. A typical home costs $173,600.

  • Stronger than most towns on: Public transit, Walkability and Short commute.
  • Weaker than most towns on: Property taxes, Home internet and working from home and Airport access.

See all figures for Sioux City

Other ZIP codes in Sioux City

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