Postal Codes

55040 ZIP Code

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ZIP code 55040 covers Isanti, Minnesota, with a population of about 14,451 and a median household income of $88,576.

Population
14,451147 per square mile
Median age
37.51.2 points below the US average
Median household income
$88,576about the Minnesota median
Poverty rate
7.3%5.1 points below the US average
Typical home value
$335,972up 16.6% in five years
Median rent
$1,2981.1× the Minnesota median
Degree or higher
18.4%16.6 points below the US average
Homeownership
87.5%22.5 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
280

Where 55040 is

Isanti, Minnesota — 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

Population14,451
Median age37.5
Family households68.8%
Born outside the US1.1%
Speaks a language other than English at home2.9%
White (non-Hispanic)91.8%
Black (non-Hispanic)0.2%
Asian (non-Hispanic)2.1%
Hispanic or Latino3.4%
Veterans7.5%
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$88,576
Income per person$39,665
Poverty rate7.3%
Households on SNAP or cash assistance5.4%

Household income distribution

Under $10k3.4%
$10–15k2.3%
$15–20k0.8%
$20–25k0.8%
$25–30k2.0%
$30–35k2.3%
$35–40k1.7%
$40–45k2.5%
$45–50k4.6%
$50–60k9.1%
$60–75k11.4%
$75–100k15.5%
$100–125k14.0%
$125–150k10.9%
$150–200k10.6%
$200k or more8.1%

Income as declared to the IRS

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

Tax returns filed7,220
Mean adjusted gross income$73,677
Returns declaring $200,000 or more3.5%
Returns, under $25k22.6%
Returns, $25k–$50k22.9%
Returns, $50k–$75k18.4%
Returns, $75k–$100k12.9%
Returns, $100k–$200k19.8%
Returns, $200k or more3.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$287,700
Median gross rent$1,298
Rent as a share of household income26.5%
Owner-occupied87.5%
Vacant homes6.7%
Median year built1992

What the homes are

Detached house85.4%
Attached house4.1%
2 to 4 units0.3%
5 to 19 units1.3%
20 or more units7.5%
Mobile home1.3%
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$335,972as of 2026-07
Typical home value, 1 yearup 2.2%
Typical home value, 5 yearsup 16.6%
Typical home value, 10 yearsup 84.2%
Typical home value since 2000
200020132026$335,972$95,629

$95,629 in 2000 to $335,972 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.8%
Bachelor's degree or higher18.4%
High school diploma or higher89.9%
Works from home13.1%
Drives to work alone78.8%
Takes public transport0.6%
Commutes 45 minutes or more30.9%
Health

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

Obesity32.9% 0.5 pts below the national average of 33.4%
Diagnosed diabetes9.6% 2.4 pts below the national average of 12%
Currently smokes16.7% 3.5 pts above the national average of 13.2%
High blood pressure29.6% 4.5 pts below the national average of 34.1%
Fair or poor general health16.7% 3.6 pts below the national average of 20.3%
No health insurance (18–64)8.1% 3.2 pts below the national average of 11.3%
Depression25.3% 3.4 pts above the national average of 21.9%
No leisure-time physical activity23.9% 1.5 pts below the national average of 25.4%
Arthritis22.6% 2.5 pts below the national average of 25.1%
Binge drinking20.1% 4.1 pts above the national average of 16%
Taking blood pressure medication74.2% 0.5 pts below the national average of 74.7%
Cancer (non-skin)7.8% same as the national average of 7.7%
Current asthma10.2% same as 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 year71.8% 4.9 pts below the national average of 76.7%
Cholesterol screening82.8% 3.1 pts below the national average of 85.9%
Cognitive disability14.4% same as the national average of 14.8%
Colorectal screening68.7% 4.4 pts above the national average of 64.3%
COPD5.9% 0.7 pts below the national average of 6.6%
Visited a dentist63.9% 2.6 pts above the national average of 61.3%
Any disability28.1% 2.6 pts below the national average of 30.7%
Lacks emotional support22.7% 2.1 pts below the national average of 24.8%
Food insecurity12.1% 5 pts below the national average of 17.1%
Received food stamps8.7% 5.6 pts below the national average of 14.3%
Hearing disability6.6% same as the national average of 6.7%
High cholesterol32.7% 3.5 pts below the national average of 36.2%
Housing insecurity9.9% 3.9 pts below the national average of 13.8%
Independent living disability7.5% 0.9 pts below the national average of 8.4%
Lacks transport7.5% 1.7 pts below the national average of 9.2%
Loneliness30.1% 4.3 pts below the national average of 34.4%
Mammography use75% 0.9 pts below the national average of 75.9%
Poor mental health (14+ days)16.8% same as the national average of 16.8%
Mobility disability11.2% 2.8 pts below the national average of 14%
Poor physical health (14+ days)12.4% 1.1 pts below the national average of 13.5%
Self-care disability3.3% 0.7 pts below the national average of 4%
Utility shut-off threat6.2% 2.6 pts below the national average of 8.8%
Sleeps under 7 hours32.1% 4.3 pts below the national average of 36.4%
Stroke3% same as the national average of 3.4%
All natural teeth lost14.2% 1.2 pts above the national average of 13%
Vision disability4% 1.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments280
People employed2,392
Annual payroll$107,479,000
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 58% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 6 census tracts this ZIP code covers
Expected annual loss65.4 out of 100
Community resilience91.5 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 wind90.7Relatively High at its worst in this ZIP code
Wildfire89.7Relatively Moderate at its worst in this ZIP code
Hail87Relatively High at its worst in this ZIP code
Drought86Relatively Low at its worst in this ZIP code
Lightning82.2Relatively High at its worst in this ZIP code
Landslide80.3Relatively Low at its worst in this ZIP code
Tornado78.2Relatively High at its worst in this ZIP code
River flooding73.4Relatively High at its worst in this ZIP code
Cold wave69.5Relatively Moderate at its worst in this ZIP code
Winter weather62.5Relatively Moderate at its worst in this ZIP code
Ice storm52.7Relatively Low at its worst in this ZIP code
Heat wave49.6Relatively Moderate at its worst in this ZIP code
Earthquake2.3Very Low at its worst in this ZIP code
Compared with Minnesota 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 ZIPMinnesotaUnited States
Median household income$88,576$87,556$78,538
Income per person$39,665$46,957$43,289
Poverty rate7.3%9.2%12.4%
Median home value$287,700$305,500$303,400
Median gross rent$1,298$1,235$1,348
Homeownership87.5%72.4%65%
Bachelor's degree or higher18.4%38.8%35%
Unemployment rate4.8%3.9%5.2%
Works from home13.1%15.8%13.5%
Born outside the US1.1%8.6%13.9%
Median age37.538.638.7
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 stationCAMBRIDGE, MN US9.8 km away
Rain in a year30 in
Snow in a year44 in

Average high and low by month

January21.9°F / 3.6°F0.74 in rain, 5.4 in snow
February27.1°F / 7.3°F0.72 in rain, 10 in snow
March40.4°F / 19.9°F1.38 in rain, 7.4 in snow
April56°F / 33.5°F2.71 in rain, 4 in snow
May68.8°F / 45.7°F3.59 in rain
June77.4°F / 56.5°F4.2 in rain
July81.8°F / 60.7°F4.22 in rain
August79.8°F / 58.1°F3.63 in rain
September71.5°F / 49.5°F3.07 in rain
October57.7°F / 37.2°F2.8 in rain, 0.5 in snow
November41.1°F / 24.7°F1.61 in rain, 4.5 in snow
December26.9°F / 11.2°F0.99 in rain, 12.3 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 supermarket13% 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 2 school districts, so the address decides which one, not the ZIP code.

Cambridge-Isanti Public School District77.6% of this ZIP code's land area
St. Francis Area Schools22.4% 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 vulnerability22more vulnerable than 22% of US census tracts
Socioeconomic status34more vulnerable than 34% of US census tracts
Household characteristics23more vulnerable than 23% of US census tracts
Racial and ethnic minority status7more vulnerable than 7% of US census tracts
Housing type and transport32more vulnerable than 32% of US census tracts
Walkability4.6 out of 20Least walkable
Nearby ZIP codes

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

55005 Bethel, MN8.8 km away
55008 Cambridge, MN11.1 km away
55070 Saint Francis, MN13.5 km away
55011 Cedar, MN14.1 km away
55079 Stacy, MN18.1 km away
55029 Grandy, MN18.7 km away
55056 North Branch, MN19.8 km away
55078 Stacy, MN20.2 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.

Isanti County99.9% of this ZIP code's land area
Anoka County0.1% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area98.07 sq mi
Water area3.01 sq mi
Population density147 people per sq mi
Latitude, longitude45.4682, -93.2266

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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