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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Rock Rapids, IA

Rock Rapids, IA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 51246StandardLyon3,844712

Timezone(s):Central (GMT -06:00)
Counties:LYON, IA
Population:2,549 (More Details)
Male Population:1,200
Female Population:1,349
Median Age:42
ZIP Codes:1
Area Codes:1
Total Area:588 square miles (county)
Land Area:588 square miles (county)
Water Area:0 square miles (county)

Rock Rapids, IA Demographic Information *

Total population2,549
Male population1,200
Female population1,349
Median age (years)42.1
White Population2,502
Black Population5
Indian Population2
Asian Population3
Hawaiian Population0
Hispanic Population45
Median age (Male)38.8
Median age (Female)45.5
Total households1,083
Family households (families)689
Average household size2.28
Average family size2.92
Total housing units1,207
* Demographic data is based on 2010 Census.

Rock Rapids, IA Other Information

  • Located in LYON County, Iowa
  • Rock Rapids, IA is also known as:
    • EDNA, IA

62 Cities within 30 miles of Rock Rapids, IA Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],