Postal Codes

48820 ZIP Code

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ZIP code 48820 covers Dewitt, Michigan, with a population of about 18,109 and a median household income of $106,651.

Population
18,109275 per square mile
Median age
43.75 points above the US average
Median household income
$106,6511.5× the Michigan median
Poverty rate
3.6%8.8 points below the US average
Typical home value
$370,510up 23.7% in five years
Median rent
$1,098about the Michigan median
Degree or higher
45.2%10.2 points above the US average
Homeownership
85.4%20.4 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
330

Where 48820 is

Dewitt, 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

Population18,109
Median age43.7
Family households75.2%
Born outside the US1.6%
Speaks a language other than English at home3.6%
White (non-Hispanic)88.1%
Black (non-Hispanic)1.6%
Asian (non-Hispanic)0.2%
Hispanic or Latino6.2%
Veterans7.8%
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$106,651
Income per person$50,054
Poverty rate3.6%
Households on SNAP or cash assistance4.4%

Household income distribution

Under $10k1.4%
$10–15k0.7%
$15–20k1.7%
$20–25k1.4%
$25–30k2.3%
$30–35k5.3%
$35–40k2.3%
$40–45k2.5%
$45–50k2.3%
$50–60k4.1%
$60–75k10.3%
$75–100k12.9%
$100–125k11.1%
$125–150k10.3%
$150–200k12.5%
$200k or more18.8%

Income as declared to the IRS

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

Tax returns filed9,380
Mean adjusted gross income$110,307
Returns declaring $200,000 or more11.2%
Returns, under $25k23.1%
Returns, $25k–$50k15.5%
Returns, $50k–$75k13.3%
Returns, $75k–$100k10.7%
Returns, $100k–$200k26.2%
Returns, $200k or more11.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$318,400
Median gross rent$1,098
Rent as a share of household income26.5%
Owner-occupied85.4%
Vacant homes1.8%
Median year built1991

What the homes are

Detached house84.7%
Attached house3.7%
2 to 4 units2.7%
5 to 19 units7.5%
20 or more units1.2%
Mobile home0.2%
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$370,510as of 2026-07
Typical home value, 1 yearup 2.8%
Typical home value, 5 yearsup 23.7%
Typical home value, 10 yearsup 77.2%
Typical asking rent$1,891as of 2026-07
Typical home value since 2000
200020132026$370,510$155,630

$155,630 in 2000 to $370,510 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.8%
Bachelor's degree or higher45.2%
High school diploma or higher96.9%
Works from home19%
Drives to work alone74%
Takes public transport0.1%
Commutes 45 minutes or more12.3%
Health

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

Obesity33% same as the national average of 33.4%
Diagnosed diabetes9.3% 2.7 pts below the national average of 12%
Currently smokes10.7% 2.5 pts below the national average of 13.2%
High blood pressure31.7% 2.4 pts below the national average of 34.1%
Fair or poor general health13.7% 6.6 pts below the national average of 20.3%
No health insurance (18–64)4.6% 6.7 pts below the national average of 11.3%
Depression26.1% 4.2 pts above the national average of 21.9%
No leisure-time physical activity18.4% 7 pts below the national average of 25.4%
Arthritis28.5% 3.4 pts above the national average of 25.1%
Binge drinking17.6% 1.6 pts above the national average of 16%
Taking blood pressure medication77.2% 2.5 pts above the national average of 74.7%
Cancer (non-skin)9.8% 2.1 pts above the national average of 7.7%
Current asthma10.9% 0.5 pts above the national average of 10.4%
Coronary heart disease5.7% 0.5 pts below the national average of 6.2%
Routine check-up in past year81.1% 4.4 pts above the national average of 76.7%
Cholesterol screening89.9% 4 pts above the national average of 85.9%
Cognitive disability11.3% 3.5 pts below the national average of 14.8%
Colorectal screening73.3% 9 pts above the national average of 64.3%
COPD6.1% 0.5 pts below the national average of 6.6%
Visited a dentist75.7% 14.4 pts above the national average of 61.3%
Any disability24.9% 5.8 pts below the national average of 30.7%
Lacks emotional support20.6% 4.2 pts below the national average of 24.8%
Food insecurity8.4% 8.7 pts below the national average of 17.1%
Received food stamps6.9% 7.4 pts below the national average of 14.3%
Hearing disability6.3% same as the national average of 6.7%
High cholesterol36.1% same as the national average of 36.2%
Housing insecurity7.3% 6.5 pts below the national average of 13.8%
Independent living disability6.2% 2.2 pts below the national average of 8.4%
Lacks transport5.1% 4.1 pts below the national average of 9.2%
Loneliness30.4% 4 pts below the national average of 34.4%
Mammography use78.8% 2.9 pts above the national average of 75.9%
Poor mental health (14+ days)15.2% 1.6 pts below the national average of 16.8%
Mobility disability10.7% 3.3 pts below the national average of 14%
Poor physical health (14+ days)11.6% 1.9 pts below the national average of 13.5%
Self-care disability2.6% 1.4 pts below the national average of 4%
Utility shut-off threat5.2% 3.6 pts below the national average of 8.8%
Sleeps under 7 hours29.2% 7.2 pts below the national average of 36.4%
Stroke2.8% 0.6 pts below the national average of 3.4%
All natural teeth lost7.2% 5.8 pts below the national average of 13%
Vision disability3.2% 2.4 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments330
People employed2,776
Annual payroll$99,869,000
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 33.1% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 10 census tracts this ZIP code covers
Expected annual loss52.7 out of 100
Community resilience84.9 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 wind92.8Very High at its worst in this ZIP code
Hail75.9Relatively Moderate at its worst in this ZIP code
Tornado74.9Relatively High at its worst in this ZIP code
Landslide74.2Relatively Low at its worst in this ZIP code
Cold wave67.6Relatively Moderate at its worst in this ZIP code
Ice storm62.3Relatively Moderate at its worst in this ZIP code
Wildfire54.2Very Low at its worst in this ZIP code
Winter weather42.9Relatively Moderate at its worst in this ZIP code
River flooding40.2Relatively Moderate at its worst in this ZIP code
Hurricane37.9Very Low at its worst in this ZIP code
Lightning25.2Relatively Low at its worst in this ZIP code
Earthquake19.1Very Low at its worst in this ZIP code
Heat wave10.7Very 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$106,651$71,149$78,538
Income per person$50,054$39,538$43,289
Poverty rate3.6%13.1%12.4%
Median home value$318,400$217,600$303,400
Median gross rent$1,098$1,084$1,348
Homeownership85.4%72.9%65%
Bachelor's degree or higher45.2%31.8%35%
Unemployment rate2.8%5.8%5.2%
Works from home19%12%13.5%
Born outside the US1.6%7%13.9%
Median age43.740.138.7
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 stationLANSING CAPITAL CITY AP, MI US6.9 km away
Rain in a year33 in
Snow in a year50 in

Average high and low by month

January30.6°F / 17.2°F2.06 in rain, 14.3 in snow
February33.5°F / 18.3°F1.71 in rain, 12.9 in snow
March44.4°F / 26°F2.13 in rain, 5.9 in snow
April57.6°F / 36.4°F3.26 in rain, 1.7 in snow
May69.4°F / 47.5°F3.66 in rain
June78.9°F / 57.1°F3.76 in rain
July82.8°F / 60.9°F2.94 in rain
August80.6°F / 59.5°F3.48 in rain
September73.6°F / 51.5°F2.81 in rain
October60.5°F / 41.2°F3.16 in rain, 0.2 in snow
November47°F / 31.9°F2.46 in rain, 3.9 in snow
December35.7°F / 23.3°F1.9 in rain, 11.3 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 supermarket14% of this ZIP code's area
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%.

This ZIP code is served by 5 school districts, so the address decides which one, not the ZIP code.

St. Johns Public Schools59.8% of this ZIP code's land area
DeWitt Public Schools21.5% of this ZIP code's land area
Bath Community Schools9.7% of this ZIP code's land area
Grand Ledge Public Schools6% of this ZIP code's land area
Lansing Public School District2.6% 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 vulnerability15more vulnerable than 15% of US census tracts
Socioeconomic status12more vulnerable than 12% of US census tracts
Household characteristics30more vulnerable than 30% of US census tracts
Racial and ethnic minority status18more vulnerable than 18% of US census tracts
Housing type and transport30more vulnerable than 30% of US census tracts
Walkability4.8 out of 20Least walkable
Nearby ZIP codes

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

48906 Lansing, MI9 km away
48808 Bath, MI10.5 km away
48937 Lansing, MI10.6 km away
48915 Lansing, MI11.6 km away
48917 Lansing, MI12.3 km away
48933 Lansing, MI12.3 km away
48922 Lansing, MI12.4 km away
48929 Lansing, MI12.4 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.

Clinton County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area65.77 sq mi
Water area0.55 sq mi
Population density275 people per sq mi
Latitude, longitude42.8428, -84.5797

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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