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ZIP Codes for City of Onawa, IA

Timezone(s):Central (GMT -06:00)
Counties:MONONA, IA
Population:2,998 (More Details)
Male Population:1,424
Female Population:1,574
Median Age:45
ZIP Codes:1
Area Codes:1
Total Area:699 square miles (county)
Land Area:694 square miles (county)
Water Area:5 square miles (county)

Onawa, IA Covers 1 ZIP Code

ZIP Code Type County Population Area Code(s)
ZIP Code 51040 Standard Monona 3,712 712

Onawa, IA Demographic Information *

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Total population 2,998
Male population 1,424
Female population 1,574
Median age (years) 44.8
White Population 2,890
Black Population 13
Indian Population 50
Asian Population 10
Hawaiian Population 0
Hispanic Population 35
Median age (Male) 41.6
Median age (Female) 47.2
Total households 1,345
Family households (families) 756
Average household size 2.18
Average family size 2.91
Total housing units 1,519
* Demographic data is based on 2010 Census.

Onawa, IA Other Information

  • Located in MONONA County, Iowa
  • Onawa, IA is also known as:
    • TURIN, IA

60 Cities within 30 miles of Onawa, IA Products