Postal Codes

49128 ZIP Code

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ZIP code 49128 covers Three Oaks, Michigan, with a population of about 3,461 and a median household income of $73,023.

Population
3,46179 per square mile
Median age
50.211.5 points above the US average
Median household income
$73,023about the Michigan median
Poverty rate
6.2%6.2 points below the US average
Typical home value
$367,975up 33.3% in five years
Median rent
$9849% below the Michigan median
Degree or higher
24.2%10.8 points below the US average
Homeownership
84.4%19.4 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
73

Where 49128 is

Three Oaks, Michigan — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population3,461
Median age50.2
Family households62.4%
Born outside the US3.4%
Speaks a language other than English at home7.9%
White (non-Hispanic)83.7%
Black (non-Hispanic)0.3%
Asian (non-Hispanic)0.5%
Hispanic or Latino11.1%
Veterans7.2%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$73,023
Income per person$43,798
Poverty rate6.2%
Households on SNAP or cash assistance7.8%

Household income distribution

Under $10k4.9%
$10–15k3.3%
$15–20k3.3%
$20–25k1.8%
$25–30k5.2%
$30–35k3.7%
$35–40k3.7%
$40–45k2.9%
$45–50k4.5%
$50–60k8.4%
$60–75k11.1%
$75–100k11.3%
$100–125k6.3%
$125–150k6.8%
$150–200k16.6%
$200k or more6.0%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed1,630
Mean adjusted gross income$79,279
Returns declaring $200,000 or more5.5%
Returns, under $25k30.1%
Returns, $25k–$50k23.9%
Returns, $50k–$75k15.3%
Returns, $75k–$100k9.2%
Returns, $100k–$200k16.0%
Returns, $200k or more5.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$247,000
Median gross rent$984
Rent as a share of household income31%
Owner-occupied84.4%
Vacant homes23.5%
Median year built1963

What the homes are

Detached house88.3%
Attached house0.5%
2 to 4 units3.2%
5 to 19 units2.3%
Mobile home5.5%
Boat, RV or van0.1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$367,975as of 2026-07
Typical home value, 1 yearup 12.5%
Typical home value, 5 yearsup 33.3%
Typical home value, 10 yearsup 111.7%
Typical home value since 2000
200020132026$367,975$124,597

$127,291 in 2000 to $367,975 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.7%
Bachelor's degree or higher24.2%
High school diploma or higher94.4%
Works from home8.9%
Drives to work alone79%
Takes public transport0.1%
Commutes 45 minutes or more11.3%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity36.2% 2.8 pts above the national average of 33.4%
Diagnosed diabetes12.5% 0.5 pts above the national average of 12%
Currently smokes14% 0.8 pts above the national average of 13.2%
High blood pressure39.7% 5.6 pts above the national average of 34.1%
Fair or poor general health18.4% 1.9 pts below the national average of 20.3%
No health insurance (18–64)6% 5.3 pts below the national average of 11.3%
Depression25.5% 3.6 pts above the national average of 21.9%
No leisure-time physical activity24.6% 0.8 pts below the national average of 25.4%
Arthritis34.5% 9.4 pts above the national average of 25.1%
Binge drinking15.3% 0.7 pts below the national average of 16%
Taking blood pressure medication79.8% 5.1 pts above the national average of 74.7%
Cancer (non-skin)11.8% 4.1 pts above the national average of 7.7%
Current asthma11.3% 0.9 pts above the national average of 10.4%
Coronary heart disease8.1% 1.9 pts above the national average of 6.2%
Routine check-up in past year80.7% 4 pts above the national average of 76.7%
Cholesterol screening89.7% 3.8 pts above the national average of 85.9%
Cognitive disability13.4% 1.4 pts below the national average of 14.8%
Colorectal screening73.5% 9.2 pts above the national average of 64.3%
COPD8.9% 2.3 pts above the national average of 6.6%
Visited a dentist71.9% 10.6 pts above the national average of 61.3%
Any disability32.9% 2.2 pts above the national average of 30.7%
Lacks emotional support21.3% 3.5 pts below the national average of 24.8%
Food insecurity11% 6.1 pts below the national average of 17.1%
Received food stamps9.8% 4.5 pts below the national average of 14.3%
Hearing disability8.8% 2.1 pts above the national average of 6.7%
High cholesterol38.5% 2.3 pts above the national average of 36.2%
Housing insecurity8.6% 5.2 pts below the national average of 13.8%
Independent living disability8% same as the national average of 8.4%
Lacks transport6.1% 3.1 pts below the national average of 9.2%
Loneliness30.3% 4.1 pts below the national average of 34.4%
Mammography use78.1% 2.2 pts above the national average of 75.9%
Poor mental health (14+ days)16% 0.8 pts below the national average of 16.8%
Mobility disability15.1% 1.1 pts above the national average of 14%
Poor physical health (14+ days)14.9% 1.4 pts above the national average of 13.5%
Self-care disability3.7% same as the national average of 4%
Utility shut-off threat6.2% 2.6 pts below the national average of 8.8%
Sleeps under 7 hours34.6% 1.8 pts below the national average of 36.4%
Stroke3.9% 0.5 pts above the national average of 3.4%
All natural teeth lost10.7% 2.3 pts below the national average of 13%
Vision disability4.4% 1.2 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments73
People employed525
Annual payroll$18,460,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 20.1% of US census tracts
FEMA ratingVery Low to Relatively Low across the 5 census tracts this ZIP code covers
Expected annual loss17.2 out of 100
Community resilience97.4 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Strong wind77.6Relatively Moderate at its worst in this ZIP code
Hail77Relatively Moderate at its worst in this ZIP code
Landslide69Very Low at its worst in this ZIP code
Cold wave66Relatively Moderate at its worst in this ZIP code
Coastal flooding57Very Low at its worst in this ZIP code
Tornado53.1Relatively Moderate at its worst in this ZIP code
Winter weather47.2Relatively Moderate at its worst in this ZIP code
Wildfire44.9Very Low at its worst in this ZIP code
Earthquake36.4Relatively Low at its worst in this ZIP code
River flooding35.3Relatively Moderate at its worst in this ZIP code
Lightning27.7Relatively Low at its worst in this ZIP code
Hurricane24.9Very Low at its worst in this ZIP code
Ice storm14.6Very Low at its worst in this ZIP code
Heat wave12.6Very Low at its worst in this ZIP code
Compared with Michigan and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPMichiganUnited States
Median household income$73,023$71,149$78,538
Income per person$43,798$39,538$43,289
Poverty rate6.2%13.1%12.4%
Median home value$247,000$217,600$303,400
Median gross rent$984$1,084$1,348
Homeownership84.4%72.9%65%
Bachelor's degree or higher24.2%31.8%35%
Unemployment rate2.7%5.8%5.2%
Works from home8.9%12%13.5%
Born outside the US3.4%7%13.9%
Median age50.240.138.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationLAPORTE, IN US24.5 km away
Rain in a year43 in
Snow in a year65 in

Average high and low by month

January31.2°F / 17.3°F3.01 in rain, 23 in snow
February35.1°F / 20.3°F2.52 in rain, 16 in snow
March46°F / 28.7°F2.7 in rain, 7.1 in snow
April58.8°F / 39.3°F3.77 in rain, 1.1 in snow
May70°F / 50°F4.33 in rain
June78.9°F / 59.7°F4.38 in rain
July82.1°F / 64°F4.04 in rain
August80.3°F / 62.8°F4.22 in rain
September74.4°F / 55.2°F3.38 in rain
October62°F / 43.9°F4.11 in rain, 0.2 in snow
November47.7°F / 32.9°F3.24 in rain, 4 in snow
December36.2°F / 23.5°F2.85 in rain, 13.8 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

River Valley School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability32more vulnerable than 32% of US census tracts
Socioeconomic status33more vulnerable than 33% of US census tracts
Household characteristics50more vulnerable than 50% of US census tracts
Racial and ethnic minority status24more vulnerable than 24% of US census tracts
Housing type and transport33more vulnerable than 33% of US census tracts
Walkability5 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

49116 Lakeside, MI5.8 km away
49129 Union Pier, MI6.4 km away
49115 Harbert, MI7 km away
49125 Sawyer, MI7.9 km away
49119 New Troy, MI8.6 km away
49113 Galien, MI9.3 km away
46371 Rolling Prairie, IN10.6 km away
49117 New Buffalo, MI11.1 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Berrien County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area43.71 sq mi
Water area0.3 sq mi
Population density79 people per sq mi
Latitude, longitude41.8150, -86.6154

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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