48879 ZIP Code — Saint Johns, MI

Clinton County, Michigan

ZIP code 48879 is located in Saint Johns, Michigan, within Clinton County. It covers approximately 191.28 square miles and serves a population of 18,607 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 989.

About ZIP code 48879

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 $200,100. Owner-occupancy is high at 83%, well above the national average.

Median household income is $77,321. 39% 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 24 minutes is near the national average.

Educational attainment is near the national average, with 23% of residents holding a bachelor's degree or higher.

Overall, ZIP code 48879 reflects a community defined by high homeownership and a significant Social Security-dependent population.

18,607

population

191.28

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

48879 ZIP code map

Cities in ZIP code 48879

Below are the cities the US Postal Service accepts for ZIP code 48879. Using any city not on this list may result in mail delivery delays.

City	Status
Saint Johns	Preferred

Nearby ZIP codes

48835 Fowler (9.2 mi) 48820 Dewitt (9.9 mi) 48866 Ovid (11.5 mi) 48894 Westphalia (11.7 mi) 48831 Elsie (11.8 mi) 48871 Perrinton (12.3 mi) 48873 Pewamo (12.9 mi) 48848 Laingsburg (13.2 mi) 48806 Ashley (13.7 mi) 48807 Bannister (13.9 mi) 48808 Bath (13.9 mi) 48822 Eagle (14.4 mi)

Demographics updated 06/2026

Population
Total population	18,607
Population density	97 / sq mi
State FIPS	26
County FIPS	037

Geography
Land area	191.28 sq mi
Water area	0.67 sq mi
Latitude	43.0005
Longitude	-84.5827
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	32.4%	38.9%	42.6%
$50k – $100k	37.3%	33.9%	31.1%
$100k – $200k	26.7%	22.1%	20.6%
Over $200k	3.6%	5.1%	5.7%

Demographics & statistics

18,607

Population

People per sq mi

42.3

Median age

$77,321

Median household income

$35,739

Per capita income

$200,100

Median home value

$885

Median monthly rent

82.5%

Home ownership

11.2%

Poverty rate

4.0%

Unemployment

6,209

Housing units

22.6%

Bachelor's or higher

Age distribution

Male Female

503

Under 5

491

702

5–9

685

653

10–14

638

629

15–19

613

396

20–24

387

1,141

25–34

1,113

1,016

35–44

991

1,293

45–54

1,261

745

55–59

726

564

60–64

551

974

65–74

951

517

75–84

504

285

85+

278

← Male

Female →

Age summary

Group	Count	%
Under 18	4,546	24.4%
18 and over	14,061	75.6%
65 and over	3,509	18.9%
Median age	42.3 years

Race & ethnicity

White 93.3%

Two or more races 3.2%

Hispanic or Latino 1.4%

American Indian / Alaska Native 0.9%

Black or African American 0.8%

Other race 0.3%

Asian 0.2%

Group	Count	%
White	17,600	93.3%
Two or more races	596	3.2%
Hispanic or Latino	260	1.4%
American Indian / Alaska Native	166	0.9%
Black or African American	153	0.8%
Other race	53	0.3%
Asian	37	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.4%	38.9%	42.6%
$50k – $100k	37.3%	33.9%	31.1%
$100k – $200k	26.7%	22.1%	20.6%
Over $200k	3.6%	5.1%	5.7%

Under $10k 3.6%

$10k–$15k 2.7%

$15k–$25k 5.1%

$25k–$35k 7.4%

$35k–$50k 12.9%

$50k–$75k 16.8%

$75k–$100k 14.9%

$100k–$150k 20.0%

$150k–$200k 10.8%

$200k+ 5.8%

Range	% of households
Under $10k	3.6%
$10k–$15k	2.7%
$15k–$25k	5.1%
$25k–$35k	7.4%
$35k–$50k	12.9%
$50k–$75k	16.8%
$75k–$100k	14.9%
$100k–$150k	20.0%
$150k–$200k	10.8%
$200k+	5.8%
Median income	$77,321

Housing

Home values

Under $50k 5.5%

$50k–$100k 7.4%

$100k–$150k 16.6%

$150k–$200k 20.5%

$200k–$300k 29.7%

$300k–$500k 17.8%

$500k–$1M 2.0%

$1M+ 0.6%

Housing overview

Metric	Value
Median home value	$200,100
Median rent / month	$885
Owner occupied	82.5%
Renter occupied	17.5%
Vacant	6.1%
Single-family detached	82.0%
Large apartment buildings	3.1%
Mobile homes	4.9%
Median rooms	6.6
Avg household size (owned)	2.68

Year built

Era	%
2020 or later	0.0%
2010–2019	3.2%
2000–2009	11.3%
1990–1999	13.3%
1980–1989	9.8%
1970–1979	17.0%
1960–1969	8.1%
1950–1959	7.6%
1940–1949	2.9%
1939 or earlier	26.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	4.4%
2 bedrooms	18.4%
3 bedrooms	48.1%
4 bedrooms	22.1%
5+ bedrooms	6.1%

Vehicles per household

Vehicles	% of households
No vehicle	3.7%
1 vehicle	27.5%
2 vehicles	38.5%
3 or more	30.3%

Heating fuel

Fuel type	%
Utility gas	49.4%
Electricity	8.2%
Propane / LP gas	28.0%
Fuel oil	6.1%
Wood	5.5%
Solar	0.1%
No fuel used	1.1%

Households & families

Household type	Count	%
Married-couple family	3,921	56.2%
Cohabiting couple	488	7.0%
Male householder, no spouse	961	13.8%
Female householder, no spouse	1,602	23.0%
Households with children under 18	2,169	31.1%
Households with seniors (65+)	2,325	33.3%
Average household size	2.62

Marital status

Status	Male	Female
Never married	30.2%	22.8%
Married	56.3%	53.2%
Separated	1.8%	0.9%
Widowed	4.1%	11.0%
Divorced	7.6%	12.0%

Education

Less than 9th grade 1.8%

Some HS, no diploma 3.8%

HS graduate 31.1%

Some college, no degree 27.9%

Associate's degree 12.8%

Bachelor's degree 15.1%

Graduate / professional 7.6%

Metric	%
HS diploma or higher	94.4%
Bachelor's or higher	22.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	232	5.3%
Kindergarten	268	6.2%
Elementary school	2,089	48.0%
High school	1,128	25.9%
College / grad school	633	14.6%

Employment

Industry of employment

Education & healthcare 22.7%

Manufacturing 11.6%

Public administration 11.1%

Retail trade 9.1%

Finance & real estate 8.3%

Professional & management 7.3%

Construction 6.6%

Arts, food & hospitality 6.2%

Other services 5.0%

Transportation & utilities 4.7%

Wholesale trade 4.3%

Agriculture & mining 2.7%

Information 0.6%

Occupation

Category	%
Management, business & arts	33.0%
Service	19.9%
Sales & office	21.5%
Natural resources & construction	10.4%
Production & transportation	15.3%

Employment type

Type	%
Private sector	73.6%
Government	18.8%
Self-employed	7.4%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	81.4%
Carpool	5.2%
Public transit	0.6%
Walk	2.1%
Work from home	10.2%
Other means	0.4%
Avg commute (minutes)	24.4

Poverty

All people 11.2%

Under 18 years 21.8%

18 and over 7.7%

Married-couple families 3.4%

Female-led households 24.5%

Income support

Source	% of households
Social Security	38.5%
Retirement income	33.3%
Supplemental Security	3.7%
Cash public assistance	3.9%
Food stamps / SNAP	9.2%

Health indicators

Condition	%
Obesity	34.5%
High blood pressure	31.7%
High cholesterol	34.0%
Diabetes	10.0%
Heart disease	6.3%
Stroke	2.8%
Asthma	10.7%
Arthritis	29.6%
Kidney disease	2.7%
Pulmonary disease	7.1%
Cancer	6.8%

Behavior / access	%
Smoking	18.7%
Binge drinking	19.3%
No physical activity	18.5%
Less than 7 hrs sleep	32.0%
Depression	21.6%
Fair or poor health	12.9%
Poor mental health	15.6%
Poor physical health	10.2%
No health insurance	8.9%
Visited doctor (checkup)	75.1%
Visited dentist	72.2%
Cholesterol screening	91.4%
Teeth loss	11.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,025	7.3%

Disability	%
Any disability	13.0%
Under 18	4.0%
18–64 years	10.1%
65 and over	33.9%

Health insurance coverage

Type	%
Private insurance	79.7%
Public insurance	37.4%
No insurance	2.6%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	17,613	94.7%
Spanish	66	0.4%
Other Indo-European	41	0.2%
Asian & Pacific Islander	20	0.1%
Other languages	5	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	18,432	99.1%
Born in same state	18,378	98.8%
Born in different state	16,613	89.3%
Foreign born	54	0.3%
Naturalized citizen	175	0.9%
Not a US citizen	136	77.7%

Ancestry

Ancestry	Count	%
French	2,286	12.3%
Italian	2,208	11.9%
Arab	1,159	6.2%
English	630	3.4%
Polish	175	0.9%

Ancestry	Count	%
German	144	0.8%
Norwegian	73	0.4%
Dutch	69	0.4%
Irish	65	0.3%

Technology access

Metric	% of households
Computer access	37.5%
Internet access	94.0%

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

Frequently asked questions about ZIP code 48879

What city is ZIP code 48879 in?

ZIP code 48879 is primarily assigned to Saint Johns, Michigan.

What county is ZIP code 48879 in?

ZIP code 48879 falls within Clinton County, Michigan.

Is ZIP code 48879 mostly owner-occupied?

83% of occupied units in ZIP code 48879 are owner-occupied, well above the national average.

Does ZIP code 48879 have a large retiree population?

39% of households in ZIP code 48879 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 48879?

ZIP code 48879 has an estimated population of 18,607 residents, with a density of 97 people per square mile.

What is the typical home value in ZIP code 48879?

The median home value in ZIP code 48879 is $200,100.

What timezone is ZIP code 48879 in?

ZIP code 48879 observes the EST timezone.