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ZIP Code Database - Facts & Stats

Data Last Updated: October 1, 2022

ZIP Codes for City of Willis, MI

Willis, MI Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 48191StandardWashtenaw4,054734

Timezone(s):Eastern (GMT -05:00)
Population:4,054 (More Details)
Male Population:2,010
Female Population:2,044
Median Age:40
ZIP Codes:1
Area Codes:1
Total Area:722 square miles (county)
Land Area:706 square miles (county)
Water Area:16 square miles (county)

Willis, MI Demographic Information *

There is no Census data for the city of WILLIS, MI. We have pulled information for the ZIP Code 48191 instead.
Total population4,054
Male population2,010
Female population2,044
Median age (years)40
White Population3,535
Black Population317
Indian Population11
Asian Population27
Hawaiian Population1
Hispanic Population93
Median age (Male)39.3
Median age (Female)40.6
Total households1,476
Family households (families)1,122
Average household size2.75
Average family size3.11
Total housing units1,603
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 10/1/2022],
  2. Internal Data Creation [Last Updated: 10/1/2022],
  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],