Willis, MI 48191 ZIP Code Profile

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Willis, MI

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ZIP Code 48191: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Willis, MI 48191

  • ZIP Code Type: STANDARD
  • County: Washtenaw County
  • Centroid: Latitude 42.131, Longitude -83.571
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 57
  • PO Box Addresses: 129
  • Residential Addresses: 1,277
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1,277

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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48191 ZIP Code Map

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Willis, MI 48191 Data & Demographics (As of July 1, 2017)


Total Population 3,894
Daytime Population: Workers 210
Daytime Population: Residents 2,139
Total Daytime Population (TDP) 2,349
Ratio TDP/Total Population1 0.60
Population in Households 3,890
Population in Familes 3,341
Population in Group Qrtrs 4
Population Density2 258
Diversity Index3 31


Median Household Income $71,541
Average Household Income $77,625
Per Capita Income $28,437


Total Housing Units 1,473 (100%)
Owner Occupied HU 1,274 (86.5%)
Renter Occupied HU 151 (10.3%)
Vacant Housing Units 48 ( 3.3%)
Median Home Value $212,367
Average Home Value $217,524


Total Households 1,425
Average Household Size 2.73
Family Households 1,079
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.97% 0.8%
Households 0.9% 0.77%
Families 0.78% 0.69%
Median Household Income   2.63%
Per Capita Income   2.79%

Willis, MI 48191 - Peer Comparisons by Rank and Percentile

The table below compares 48191 to the other 984 ZIP Codes in Michigan by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 535 46th
Population Density # 350 65th
Diversity Index # 227 77th
Median Household Income # 93 91st
Per Capita Income # 293 70th

Additional comparisons and rankings can be made with a VERY EASY TO USE Michigan Census Data Comparison Tool.

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