48889 ZIP Code — Sumner, MI

Gratiot County, Michigan

ZIP code 48889 is located in Sumner, Michigan, within Gratiot County. It covers approximately 31.02 square miles and serves a population of 1,482 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 989.

About ZIP code 48889

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $120,300. Owner-occupancy is high at 81%, well above the national average.

The gap between median ($57,500) and mean household income suggests income inequality — a small number of higher earners pull the average up. 31% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (23%) compared to national benchmarks.

Overall, ZIP code 48889 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

1,482

population

31.02

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

48889 ZIP code map

Cities in ZIP code 48889

Below are the cities the US Postal Service accepts for ZIP code 48889. Using any city not on this list may result in mail delivery delays.

City	Status
Sumner	Preferred

Nearby ZIP codes

48818 Crystal (5.6 mi) 48856 Middleton (6.5 mi) 48811 Carson City (7.7 mi) 48877 Riverdale (8 mi) 48832 Elwell (8.3 mi) 48891 Vestaburg (9.1 mi) 48801 Alma (9.2 mi) 48871 Perrinton (10.2 mi) 48847 Ithaca (11.2 mi) 48845 Hubbardston (14.3 mi) 48829 Edmore (14.4 mi) 48884 Sheridan (14.5 mi)

Demographics updated 06/2026

Population
Total population	1,482
Population density	48 / sq mi
State FIPS	26
County FIPS	057

Geography
Land area	31.02 sq mi
Water area	0.29 sq mi
Latitude	43.2888
Longitude	-84.7909
Timezone	Eastern (ET)
Area code	989

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	49.8%	49.9%	42.6%
$50k – $100k	36.6%	33.1%	31.1%
$100k – $200k	11.2%	14.1%	20.6%
Over $200k	2.3%	2.9%	5.7%

Demographics & statistics

1,482

Population

People per sq mi

46.1

Median age

$57,500

Median household income

$40,856

Per capita income

$120,300

Median home value

$952

Median monthly rent

81.0%

Home ownership

12.2%

Poverty rate

7.5%

Unemployment

594

Housing units

12.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

104

45–54

114

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	339	22.9%
18 and over	1,143	77.1%
65 and over	259	17.5%
Median age	46.1 years

Race & ethnicity

White 93.3%

Two or more races 4.4%

Hispanic or Latino 1.7%

Black or African American 0.6%

Group	Count	%
White	1,407	93.3%
Two or more races	66	4.4%
Hispanic or Latino	26	1.7%
Black or African American	9	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	49.8%	49.9%	42.6%
$50k – $100k	36.6%	33.1%	31.1%
$100k – $200k	11.2%	14.1%	20.6%
Over $200k	2.3%	2.9%	5.7%

Under $10k 8.6%

$10k–$15k 5.2%

$15k–$25k 8.2%

$25k–$35k 7.4%

$35k–$50k 16.5%

$50k–$75k 14.8%

$75k–$100k 18.2%

$100k–$150k 14.6%

$150k–$200k 3.9%

$200k+ 2.5%

Range	% of households
Under $10k	8.6%
$10k–$15k	5.2%
$15k–$25k	8.2%
$25k–$35k	7.4%
$35k–$50k	16.5%
$50k–$75k	14.8%
$75k–$100k	18.2%
$100k–$150k	14.6%
$150k–$200k	3.9%
$200k+	2.5%
Median income	$57,500

Housing

Home values

Under $50k 13.2%

$50k–$100k 28.9%

$100k–$150k 18.6%

$150k–$200k 10.7%

$200k–$300k 19.0%

$300k–$500k 8.5%

$500k–$1M 1.0%

Housing overview

Metric	Value
Median home value	$120,300
Median rent / month	$952
Owner occupied	81.0%
Renter occupied	19.0%
Vacant	11.0%
Single-family detached	80.4%
Large apartment buildings	3.2%
Mobile homes	16.4%
Median rooms	6.0
Avg household size (owned)	2.44

Year built

Era	%
2020 or later	0.7%
2010–2019	2.4%
2000–2009	10.9%
1990–1999	10.3%
1980–1989	19.7%
1970–1979	14.1%
1960–1969	9.2%
1950–1959	6.4%
1940–1949	5.5%
1939 or earlier	20.7%

Bedrooms

Size	% of units
No bedroom (studio)	2.7%
1 bedroom	5.5%
2 bedrooms	22.0%
3 bedrooms	50.1%
4 bedrooms	12.3%
5+ bedrooms	7.6%

Vehicles per household

Vehicles	% of households
No vehicle	8.2%
1 vehicle	25.8%
2 vehicles	40.3%
3 or more	25.8%

Heating fuel

Fuel type	%
Utility gas	21.1%
Electricity	4.7%
Propane / LP gas	49.5%
Fuel oil	4.4%
Wood	11.6%

Households & families

Household type	Count	%
Married-couple family	345	54.2%
Cohabiting couple	28	4.4%
Male householder, no spouse	118	18.6%
Female householder, no spouse	145	22.8%
Households with children under 18	186	29.2%
Households with seniors (65+)	201	31.6%
Average household size	2.33

Marital status

Status	Male	Female
Never married	25.8%	19.9%
Married	61.4%	54.6%
Separated	1.2%	0.0%
Widowed	0.5%	11.6%
Divorced	11.2%	13.9%

Education

Less than 9th grade 0.3%

Some HS, no diploma 5.1%

HS graduate 48.3%

Some college, no degree 22.8%

Associate's degree 11.0%

Bachelor's degree 8.3%

Graduate / professional 4.1%

Metric	%
HS diploma or higher	94.6%
Bachelor's or higher	12.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	21	6.2%
Kindergarten	28	8.2%
Elementary school	115	33.8%
High school	113	33.2%
College / grad school	63	18.5%

Employment

Industry of employment

Education & healthcare 25.3%

Manufacturing 18.1%

Construction 11.7%

Retail trade 9.9%

Agriculture & mining 8.4%

Arts, food & hospitality 7.6%

Professional & management 5.3%

Public administration 4.6%

Transportation & utilities 4.4%

Other services 2.6%

Finance & real estate 1.0%

Information 0.7%

Wholesale trade 0.5%

Occupation

Category	%
Management, business & arts	28.8%
Service	18.6%
Sales & office	19.7%
Natural resources & construction	14.0%
Production & transportation	18.9%

Employment type

Type	%
Private sector	77.0%
Government	14.8%
Self-employed	8.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.2%
Carpool	6.7%
Public transit	0.0%
Walk	1.3%
Work from home	10.1%
Other means	0.7%
Avg commute (minutes)	25.2

Poverty

All people 12.2%

Under 18 years 9.8%

18 and over 12.9%

Married-couple families 2.9%

Female-led households 30.0%

Income support

Source	% of households
Social Security	31.1%
Retirement income	30.3%
Supplemental Security	11.2%
Cash public assistance	3.5%
Food stamps / SNAP	15.4%

Health indicators

Condition	%
Obesity	39.0%
High blood pressure	36.4%
High cholesterol	36.1%
Diabetes	11.7%
Heart disease	7.7%
Stroke	3.5%
Asthma	11.0%
Arthritis	32.3%
Kidney disease	3.2%
Pulmonary disease	9.2%
Cancer	7.5%

Behavior / access	%
Smoking	22.8%
Binge drinking	18.5%
No physical activity	23.1%
Less than 7 hrs sleep	31.7%
Depression	22.8%
Fair or poor health	16.4%
Poor mental health	16.3%
Poor physical health	12.3%
No health insurance	9.9%
Visited doctor (checkup)	74.0%
Visited dentist	64.7%
Cholesterol screening	91.4%
Teeth loss	14.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	55	4.8%

Disability	%
Any disability	19.0%
Under 18	3.8%
18–64 years	16.3%
65 and over	47.9%

Health insurance coverage

Type	%
Private insurance	72.5%
Public insurance	45.7%
No insurance	4.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,408	95.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,474	99.5%
Born in same state	1,471	99.3%
Born in different state	1,362	91.9%
Foreign born	3	0.2%
Naturalized citizen	8	0.5%
Not a US citizen	8	100.0%

Ancestry

Ancestry	Count	%
Italian	181	12.2%
French	142	9.6%
Arab	133	9%
English	35	2.4%

Ancestry	Count	%
Dutch	24	1.6%
German	12	0.8%
Polish	9	0.6%
Irish	3	0.2%

Technology access

Metric	% of households
Computer access	42.9%
Internet access	89.9%

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

Frequently asked questions about ZIP code 48889

What city is ZIP code 48889 in?

ZIP code 48889 is primarily assigned to Sumner, Michigan.

What county is ZIP code 48889 in?

ZIP code 48889 falls within Gratiot County, Michigan.

How educated is the population of ZIP code 48889?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 48889 mostly owner-occupied?

81% of occupied units in ZIP code 48889 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 48889?

The median home value in ZIP code 48889 is $120,300.

What is the population of ZIP code 48889?

ZIP code 48889 has an estimated population of 1,482 residents, with a density of 48 people per square mile.

What timezone is ZIP code 48889 in?

ZIP code 48889 observes the EST timezone.