Willis ZIP Code List — Washtenaw County, MI

There is one unique ZIP code in Willis, Michigan and it is 48191. Area code: 734.

ZIP codes

16.12

sq mi land

0.06

sq mi water

734

area code

Willis, MI ZIP code map

About Willis, MI

Willis, Michigan, is a quaint city located in the heart of Washtenaw County. Known for its small-town charm, Willis offers residents and visitors a serene lifestyle away from the hustle and bustle of larger urban areas. With a single ZIP code, 48191, this community embodies a close-knit atmosphere that attracts a variety of people.

Location & geography

Willis is situated approximately 25 miles southwest of Ann Arbor and about 15 miles northwest of Ypsilanti, making it a strategically located hub for those seeking a peaceful rural setting while remaining close to urban conveniences. The terrain of Willis features predominantly flat land, comprising a total area of 16.12 square miles, with a small water area of 0.06 square miles. This geography contributes to a rural lifestyle where agriculture and outdoor activities are popular pastimes.

Community & economy

The community in Willis is characterized by its friendly and welcoming nature, making it an ideal place for families and newcomers. The local economy is mainly driven by agriculture and small businesses, reflecting the area's historical roots. Daily life in Willis often revolves around community events, local gatherings, and outdoor recreational opportunities, fostering a strong sense of belonging among residents.

Transportation

Transportation in Willis is primarily facilitated by several local roads, with easy access to major highways such as U.S. Route 23. For air travel, the nearest airport is the Ann Arbor Municipal Airport, providing convenient options for regional travel. Public transportation options are more limited, making personal vehicles the primary mode of transit.

History

Willis was founded in the 19th century and has roots in the agricultural movement, which significantly shaped its development and economic activities. The community has seen various changes over the years, but it has largely retained its identity as a rural township with a focus on farming. Notable events in its history include the establishment of local festivals that celebrate its heritage and the contributions of its residents.

Did you know?

One surprising fact about Willis is that it is home to the historic Willis Race Track, which has been a local attraction for motorsport enthusiasts. Additionally, this small city promotes a tight-knit community spirit that manifests in its numerous local events and gatherings throughout the year.

ZIP codes for Willis, MI (1)

ZIP code	City	County	Map
48191	Willis	Washtenaw	View map

Demographics & statistics

4,059

Population

48.6

Median age

$102,784

Median household income

$51,818

Per capita income

$253,000

Median home value

$1,391

Median monthly rent

91.8%

Home ownership

4.2%

Poverty rate

3.4%

Unemployment

1,498

Housing units

22.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

146

10–14

151

144

15–19

148

165

20–24

170

25–34

222

35–44

228

409

45–54

421

133

55–59

137

227

60–64

233

241

65–74

247

118

75–84

122

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	722	17.8%
18 and over	3,337	82.2%
65 and over	750	18.5%
Median age	48.6 years

Race & ethnicity

White 74.9%

Two or more races 11.8%

Hispanic or Latino 7.8%

Black or African American 3.2%

Asian 1.2%

Other race 0.8%

American Indian / Alaska Native 0.2%

Group	Count	%
White	3,297	74.9%
Two or more races	521	11.8%
Hispanic or Latino	343	7.8%
Black or African American	140	3.2%
Asian	55	1.2%
Other race	36	0.8%
American Indian / Alaska Native	10	0.2%

Household income

Under $10k 1.0%

$10k–$15k 2.6%

$15k–$25k 2.2%

$25k–$35k 3.2%

$35k–$50k 10.3%

$50k–$75k 17.7%

$75k–$100k 12.7%

$100k–$150k 21.2%

$150k–$200k 13.0%

$200k+ 16.2%

Range	% of households
Under $10k	1.0%
$10k–$15k	2.6%
$15k–$25k	2.2%
$25k–$35k	3.2%
$35k–$50k	10.3%
$50k–$75k	17.7%
$75k–$100k	12.7%
$100k–$150k	21.2%
$150k–$200k	13.0%
$200k+	16.2%
Median income	$102,784

Housing

Home values

Under $50k 8.6%

$50k–$100k 7.6%

$100k–$150k 5.9%

$150k–$200k 14.3%

$200k–$300k 26.7%

$300k–$500k 27.9%

$500k–$1M 7.9%

$1M+ 1.0%

Housing overview

Metric	Value
Median home value	$253,000
Median rent / month	$1,391
Owner occupied	91.8%
Renter occupied	8.2%
Vacant	5.2%
Single-family detached	77.1%
Large apartment buildings	0.0%
Mobile homes	22.9%
Median rooms	6.7
Avg household size (owned)	2.61

Year built

Era	%
2020 or later	0.6%
2010–2019	5.1%
2000–2009	29.5%
1990–1999	19.5%
1980–1989	2.5%
1970–1979	12.5%
1960–1969	4.1%
1950–1959	13.6%
1940–1949	1.0%
1939 or earlier	11.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	5.1%
3 bedrooms	66.1%
4 bedrooms	24.4%
5+ bedrooms	4.4%

Vehicles per household

Vehicles	% of households
No vehicle	1.9%
1 vehicle	18.2%
2 vehicles	47.2%
3 or more	32.6%

Heating fuel

Fuel type	%
Utility gas	83.7%
Electricity	6.5%
Propane / LP gas	9.6%
Fuel oil	0.2%

Households & families

Household type	Count	%
Married-couple family	998	64.8%
Cohabiting couple	37	2.4%
Male householder, no spouse	214	13.9%
Female householder, no spouse	292	18.9%
Households with children under 18	437	28.4%
Households with seniors (65+)	574	37.2%
Average household size	2.63

Marital status

Status	Male	Female
Never married	26.2%	26.0%
Married	62.8%	55.4%
Separated	0.0%	0.3%
Widowed	0.4%	6.0%
Divorced	10.7%	12.2%

Education

Less than 9th grade 2.0%

Some HS, no diploma 7.1%

HS graduate 34.4%

Some college, no degree 25.4%

Associate's degree 8.3%

Bachelor's degree 14.0%

Graduate / professional 8.8%

Metric	%
HS diploma or higher	90.9%
Bachelor's or higher	22.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	29	3.5%
Elementary school	265	31.5%
High school	274	32.6%
College / grad school	272	32.4%

Employment

Industry of employment

Education & healthcare 22.4%

Manufacturing 22.2%

Retail trade 9.3%

Transportation & utilities 8.2%

Arts, food & hospitality 8.1%

Other services 7.0%

Construction 6.7%

Professional & management 5.3%

Information 4.0%

Finance & real estate 3.2%

Wholesale trade 1.6%

Public administration 1.0%

Agriculture & mining 0.9%

Occupation

Category	%
Management, business & arts	30.2%
Service	17.7%
Sales & office	24.3%
Natural resources & construction	15.6%
Production & transportation	12.2%

Employment type

Type	%
Private sector	81.0%
Government	15.0%
Self-employed	4.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.9%
Carpool	7.4%
Public transit	0.0%
Walk	0.0%
Other means	1.2%
Avg commute (minutes)	27.8

Poverty

All people 4.2%

Under 18 years 4.5%

18 and over 4.2%

Married-couple families 1.4%

Female-led households 14.5%

Income support

Source	% of households
Social Security	38.9%
Retirement income	38.8%
Supplemental Security	4.1%
Cash public assistance	0.0%
Food stamps / SNAP	6.0%

Health indicators

Condition	%
High blood pressure	27.3%
High cholesterol	31.5%
Heart disease	5.4%
Stroke	2.5%
Asthma	11.7%
Arthritis	25.9%
Kidney disease	2.5%
Pulmonary disease	5.9%
Cancer	6.4%

Behavior / access	%
Binge drinking	19.3%
No physical activity	16.9%
Less than 7 hrs sleep	34.3%
Fair or poor health	11.4%
Poor mental health	15.8%
Poor physical health	9.2%
No health insurance	8.2%
Visited doctor (checkup)	70.7%
Visited dentist	72.9%
Cholesterol screening	92.2%
Teeth loss	9.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	249	7.5%

Disability	%
Any disability	11.8%
Under 18	7.2%
18–64 years	11.5%
65 and over	17.5%

Health insurance coverage

Type	%
Private insurance	85.5%
Public insurance	30.3%
Uninsured under 19	3.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,952	97.4%
Spanish	19	0.5%
Other Indo-European	0	0.0%
Asian & Pacific Islander	19	0.5%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,903	96.2%
Born in same state	3,864	95.2%
Born in different state	3,089	76.1%
Foreign born	39	1.0%
Naturalized citizen	156	3.8%
Not a US citizen	112	71.8%

Ancestry

Ancestry	Count	%
Arab	623	15.3%
Italian	487	12%
French	417	10.3%
Polish	127	3.1%
English	125	3.1%

Ancestry	Count	%
Irish	98	2.4%
German	49	1.2%
Norwegian	16	0.4%
Dutch	16	0.4%

Technology access

Metric	% of households
Computer access	38.0%
Internet access	94.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Willis, MI?

Willis, MI has one ZIP code: 48191.

What is the main ZIP code for Willis, MI?

The primary ZIP code for Willis, MI is 48191. The city uses area code 734 for phone service.

What county is Willis, MI in?

Willis is located in Washtenaw County, Michigan.

How many ZIP codes are in Willis, MI?

Willis, MI has 1 ZIP code.

What ZIP code should I use when mailing packages to businesses in downtown Willis, Michigan?

All mail sent to Willis, Michigan uses the ZIP code 48191, including downtown and commercial areas throughout the city.

If I'm sending correspondence to a residential address in Willis within Washtenaw County, what ZIP code do I need?

Residential addresses in Willis, Michigan are located in ZIP code 48191, which covers the entire city.