Saint Louis ZIP Code List — Gratiot County, MI

There is one unique ZIP code in Saint Louis, Michigan and it is 48880. Area code: 989.

ZIP codes

74.78

sq mi land

0.54

sq mi water

989

area code

Saint Louis, MI ZIP code map

About Saint Louis, MI

Saint Louis is a charming city located in the heart of Michigan, specifically in Gratiot County. Known for its friendly atmosphere and small-town feel, it serves as a hub for local cultural and recreational activities. With a rich history and a vibrant community, Saint Louis offers residents and visitors alike a unique glimpse into mid-Michigan life.

Location & geography

Saint Louis is situated in Gratiot County, in the central part of Michigan's Lower Peninsula. It is conveniently located near several cities, including Alma, which is 10 miles to the northwest, Ithaca, 9 miles to the southeast, and Mount Pleasant, approximately 20 miles to the northeast. The city covers a land area of 74.78 square miles, with a water area of 0.54 square miles, giving it a mix of rural and suburban terrain.

Community & economy

The community of Saint Louis is characterized by its tight-knit environment and strong local identity, fostering a sense of belonging among residents. The local economy is diversified, with key industries including agriculture, manufacturing, and retail, contributing to the community's overall vibrancy. Daily life in Saint Louis is enhanced by various community events, parks, and recreational facilities that promote social interaction and community well-being.

Transportation

Saint Louis is accessible via several major highways, including U.S. Route 127, which connects the city to larger urban centers. The nearest named airport is the MidMichigan Regional Airport, located about 25 miles away, providing regional air travel options. Public transportation is limited, but local roads support easy navigation throughout the city and its surroundings.

History

Saint Louis was founded in the late 19th century and has since developed a rich historical narrative marked by agricultural and industrial growth. Key industries that contributed to its economy included farming and small-scale manufacturing, which remain important to this day. Notable events in the city's history include the establishment of local festivals and community gatherings that celebrate its heritage and bring residents together.

Did you know?

One surprising fact about Saint Louis is that it is home to the only remaining depot of the former Grand Trunk Western Railroad line in Gratiot County, reflecting its historical significance in transportation. Additionally, the city hosts various annual events that highlight its unique culture and strengthen community ties.

ZIP codes for Saint Louis, MI (1)

ZIP code	City	County	Map
48880	Saint Louis	Gratiot	View map

Demographics & statistics

10,026

Population

39.6

Median age

$55,597

Median household income

$19,271

Per capita income

$129,500

Median home value

$771

Median monthly rent

82.5%

Home ownership

9.8%

Poverty rate

5.7%

Unemployment

2,340

Housing units

12.1%

Bachelor's or higher

Age distribution

Male Female

220

Under 5

102

247

5–9

115

234

10–14

109

299

15–19

139

623

20–24

288

1,231

25–34

569

1,303

35–44

603

930

45–54

431

366

55–59

169

414

60–64

192

573

65–74

265

321

75–84

148

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,341	13.4%
18 and over	8,685	86.6%
65 and over	1,442	14.4%
Median age	39.6 years

Race & ethnicity

White 71.3%

Black or African American 19.1%

Two or more races 5.3%

Hispanic or Latino 2.9%

Other race 0.7%

Asian 0.4%

American Indian / Alaska Native 0.3%

Group	Count	%
White	7,356	71.3%
Black or African American	1,971	19.1%
Two or more races	552	5.3%
Hispanic or Latino	296	2.9%
Other race	71	0.7%
Asian	45	0.4%
American Indian / Alaska Native	31	0.3%

Household income

Under $10k 3.7%

$10k–$15k 4.3%

$15k–$25k 9.5%

$25k–$35k 10.9%

$35k–$50k 16.3%

$50k–$75k 19.6%

$75k–$100k 11.7%

$100k–$150k 13.9%

$150k–$200k 5.2%

$200k+ 5.0%

Range	% of households
Under $10k	3.7%
$10k–$15k	4.3%
$15k–$25k	9.5%
$25k–$35k	10.9%
$35k–$50k	16.3%
$50k–$75k	19.6%
$75k–$100k	11.7%
$100k–$150k	13.9%
$150k–$200k	5.2%
$200k+	5.0%
Median income	$55,597

Housing

Home values

Under $50k 11.1%

$50k–$100k 25.4%

$100k–$150k 22.9%

$150k–$200k 18.2%

$200k–$300k 17.1%

$300k–$500k 3.7%

$500k–$1M 1.5%

$1M+ 0.1%

Housing overview

Metric	Value
Median home value	$129,500
Median rent / month	$771
Owner occupied	82.5%
Renter occupied	17.5%
Vacant	12.5%
Single-family detached	76.2%
Large apartment buildings	0.9%
Mobile homes	7.9%
Median rooms	6.2
Avg household size (owned)	2.51

Year built

Era	%
2020 or later	0.1%
2010–2019	2.8%
2000–2009	6.6%
1990–1999	11.5%
1980–1989	14.3%
1970–1979	11.4%
1960–1969	16.4%
1950–1959	9.8%
1940–1949	8.9%
1939 or earlier	18.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.3%
1 bedroom	3.6%
2 bedrooms	28.5%
3 bedrooms	45.9%
4 bedrooms	16.1%
5+ bedrooms	3.7%

Vehicles per household

Vehicles	% of households
No vehicle	6.5%
1 vehicle	30.0%
2 vehicles	41.0%
3 or more	22.5%

Heating fuel

Fuel type	%
Utility gas	62.4%
Electricity	7.0%
Propane / LP gas	19.9%
Fuel oil	1.9%
Wood	8.2%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	1,305	53.9%
Cohabiting couple	163	6.7%
Male householder, no spouse	290	12.0%
Female householder, no spouse	661	27.3%
Households with children under 18	746	30.8%
Households with seniors (65+)	853	35.3%
Average household size	2.47

Marital status

Status	Male	Female
Never married	53.6%	24.3%
Married	27.2%	52.1%
Separated	2.1%	0.9%
Widowed	2.8%	10.3%
Divorced	14.3%	12.4%

Education

Less than 9th grade 2.4%

Some HS, no diploma 8.4%

HS graduate 47.4%

Some college, no degree 24.3%

Associate's degree 5.5%

Bachelor's degree 7.2%

Graduate / professional 4.9%

Metric	%
HS diploma or higher	89.2%
Bachelor's or higher	12.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	34	2.3%
Kindergarten	58	4.0%
Elementary school	561	38.3%
High school	399	27.2%
College / grad school	414	28.2%

Employment

Industry of employment

Education & healthcare 24.0%

Manufacturing 14.8%

Retail trade 12.3%

Professional & management 10.3%

Construction 9.1%

Arts, food & hospitality 8.3%

Other services 5.7%

Public administration 4.6%

Finance & real estate 4.1%

Agriculture & mining 2.8%

Transportation & utilities 2.4%

Wholesale trade 1.6%

Occupation

Category	%
Management, business & arts	31.5%
Service	17.9%
Sales & office	19.3%
Natural resources & construction	11.8%
Production & transportation	19.4%

Employment type

Type	%
Private sector	80.7%
Government	13.3%
Self-employed	5.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.8%
Carpool	8.3%
Public transit	0.2%
Walk	1.4%
Other means	1.9%
Avg commute (minutes)	20.5

Poverty

All people 9.8%

Under 18 years 10.7%

18 and over 9.5%

Married-couple families 5.1%

Female-led households 19.0%

Income support

Source	% of households
Social Security	42.4%
Retirement income	23.9%
Supplemental Security	5.3%
Cash public assistance	4.4%
Food stamps / SNAP	17.2%

Health indicators

Condition	%
High blood pressure	33.7%
High cholesterol	31.4%
Heart disease	5.9%
Stroke	2.9%
Asthma	10.3%
Arthritis	24.6%
Kidney disease	2.6%
Pulmonary disease	6.9%
Cancer	5.4%

Behavior / access	%
Binge drinking	21.9%
No physical activity	22.3%
Less than 7 hrs sleep	35.1%
Fair or poor health	15.5%
Poor mental health	16.1%
Poor physical health	10.5%
No health insurance	13.2%
Visited doctor (checkup)	71.5%
Visited dentist	60.1%
Cholesterol screening	88.5%
Teeth loss	13.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	505	5.8%

Disability	%
Any disability	14.6%
Under 18	6.3%
18–64 years	11.1%
65 and over	34.2%

Health insurance coverage

Type	%
Private insurance	69.8%
Public insurance	45.9%
Uninsured under 19	2.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,704	96.8%
Spanish	137	1.4%
Other Indo-European	95	1.0%
Asian & Pacific Islander	16	0.2%
Other languages	10	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	9,876	98.5%
Born in same state	9,800	97.7%
Born in different state	8,497	84.7%
Foreign born	76	0.8%
Naturalized citizen	150	1.5%
Not a US citizen	48	32.0%

Ancestry

Ancestry	Count	%
French	1,004	10%
Italian	790	7.9%
Arab	600	6%
English	123	1.2%

Ancestry	Count	%
German	47	0.5%
Irish	38	0.4%
Polish	12	0.1%
Dutch	11	0.1%

Technology access

Metric	% of households
Computer access	24.1%
Internet access	88.4%

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

Frequently asked questions

What is the ZIP code for Saint Louis, MI?

Saint Louis, MI has one ZIP code: 48880.

What is the main ZIP code for Saint Louis, MI?

The primary ZIP code for Saint Louis, MI is 48880. The city uses area code 989 for phone service.

What county is Saint Louis, MI in?

Saint Louis is located in Gratiot County, Michigan.

How many ZIP codes are in Saint Louis, MI?

Saint Louis, MI has 1 ZIP code.

What ZIP code covers the downtown Saint Louis area and the historic business district along Main Street?

The downtown Saint Louis area, including the main business district, is located in ZIP code 48880.

What is the ZIP code for the Saint Louis schools and residential neighborhoods in Gratiot County?

The Saint Louis schools and surrounding residential neighborhoods are all served by ZIP code 48880.