55040 ZIP Code — Isanti, MN

Isanti County, Minnesota

ZIP code 55040 is located in Isanti, Minnesota, within Isanti County. It covers approximately 98.07 square miles and serves a population of 14,240 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 763/612.

About ZIP code 55040

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $259,300. Owner-occupancy is high at 86%, well above the national average.

Median household income is $82,440. 32% 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 34 minutes is near the national average.

College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 55040 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

14,240

population

98.07

sq mi land

Standard

ZIP type

Central (CT)

timezone

55040 ZIP code map

Cities in ZIP code 55040

Below are the cities the US Postal Service accepts for ZIP code 55040. Using any city not on this list may result in mail delivery delays.

City	Status
Isanti	Preferred

Nearby ZIP codes

55070 Saint Francis (5.5 mi) 55005 Bethel (5.8 mi) 55008 Cambridge (6.4 mi) 55011 Cedar (9.4 mi) 55398 Zimmerman (13.2 mi) 55080 Stanchfield (13.7 mi) 55079 Stacy (13.7 mi) 55092 Wyoming (13.8 mi) 55303 Anoka (14.8 mi) 55304 Andover (15.1 mi) 55017 Dalbo (15.4 mi) 55032 Harris (17.1 mi)

Demographics updated 05/2026

Population
Total population	14,240
Population density	145 / sq mi
State FIPS	27
County FIPS	059

Geography
Land area	98.07 sq mi
Water area	3.01 sq mi
Latitude	45.4732
Longitude	-93.2922
Timezone	Central (CT)
Area code	763/612

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.5%	31.7%	33.6%
$50k – $100k	37.0%	36.4%	31.5%
$100k – $200k	31.5%	26.8%	26.5%
Over $200k	6.0%	5.1%	8.5%

Demographics & statistics

14,240

Population

145

People per sq mi

36.5

Median age

$82,440

Median household income

$36,996

Per capita income

$259,300

Median home value

$1,133

Median monthly rent

86.3%

Home ownership

11.4%

Poverty rate

5.1%

Unemployment

4,801

Housing units

19.0%

Bachelor's or higher

Age distribution

Male Female

481

Under 5

454

537

5–9

508

474

10–14

447

397

15–19

374

371

20–24

350

1,177

25–34

1,111

779

35–44

736

900

45–54

850

524

55–59

494

580

60–64

547

730

65–74

689

322

75–84

305

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	3,413	24.0%
18 and over	10,827	76.0%
65 and over	2,149	15.1%
Median age	36.5 years

Race & ethnicity

White 95.6%

Two or more races 2.6%

Hispanic or Latino 0.7%

Black or African American 0.4%

Other race 0.4%

Asian 0.3%

Group	Count	%
White	13,702	95.6%
Two or more races	372	2.6%
Hispanic or Latino	99	0.7%
Black or African American	56	0.4%
Other race	55	0.4%
Asian	44	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.5%	31.7%	33.6%
$50k – $100k	37.0%	36.4%	31.5%
$100k – $200k	31.5%	26.8%	26.5%
Over $200k	6.0%	5.1%	8.5%

Under $10k 3.3%

$10k–$15k 2.7%

$15k–$25k 4.7%

$25k–$35k 5.2%

$35k–$50k 10.4%

$50k–$75k 17.8%

$75k–$100k 14.0%

$100k–$150k 25.0%

$150k–$200k 10.7%

$200k+ 6.2%

Range	% of households
Under $10k	3.3%
$10k–$15k	2.7%
$15k–$25k	4.7%
$25k–$35k	5.2%
$35k–$50k	10.4%
$50k–$75k	17.8%
$75k–$100k	14.0%
$100k–$150k	25.0%
$150k–$200k	10.7%
$200k+	6.2%
Median income	$82,440

Housing

Home values

Under $50k 4.0%

$50k–$100k 0.3%

$100k–$150k 5.8%

$150k–$200k 9.9%

$200k–$300k 44.9%

$300k–$500k 30.3%

$500k–$1M 3.9%

$1M+ 0.9%

Housing overview

Metric	Value
Median home value	$259,300
Median rent / month	$1,133
Owner occupied	86.3%
Renter occupied	13.7%
Vacant	6.3%
Single-family detached	84.6%
Large apartment buildings	8.0%
Mobile homes	1.6%
Median rooms	6.1
Avg household size (owned)	2.84

Year built

Era	%
2020 or later	0.9%
2010–2019	8.8%
2000–2009	28.7%
1990–1999	15.9%
1980–1989	9.4%
1970–1979	19.6%
1960–1969	5.1%
1950–1959	4.8%
1940–1949	1.1%
1939 or earlier	5.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	4.5%
2 bedrooms	26.6%
3 bedrooms	35.7%
4 bedrooms	26.1%
5+ bedrooms	7.0%

Vehicles per household

Vehicles	% of households
No vehicle	1.5%
1 vehicle	23.8%
2 vehicles	36.7%
3 or more	38.1%

Heating fuel

Fuel type	%
Utility gas	57.2%
Electricity	10.0%
Propane / LP gas	28.2%
Fuel oil	1.4%
Wood	2.0%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	2,735	53.0%
Cohabiting couple	677	13.1%
Male householder, no spouse	839	16.3%
Female householder, no spouse	910	17.6%
Households with children under 18	1,590	30.8%
Households with seniors (65+)	1,552	30.1%
Average household size	2.75

Marital status

Status	Male	Female
Never married	33.2%	26.1%
Married	51.3%	52.7%
Separated	1.6%	1.5%
Widowed	2.2%	7.6%
Divorced	11.7%	12.0%

Education

Less than 9th grade 1.3%

Some HS, no diploma 8.3%

HS graduate 35.1%

Some college, no degree 23.9%

Associate's degree 12.3%

Bachelor's degree 15.3%

Graduate / professional 3.6%

Metric	%
HS diploma or higher	90.4%
Bachelor's or higher	19.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	209	6.9%
Kindergarten	155	5.1%
Elementary school	1,496	49.4%
High school	674	22.3%
College / grad school	495	16.3%

Employment

Industry of employment

Education & healthcare 19.4%

Manufacturing 18.7%

Construction 13.9%

Retail trade 10.9%

Arts, food & hospitality 9.4%

Professional & management 6.7%

Transportation & utilities 6.2%

Public administration 4.6%

Finance & real estate 3.5%

Other services 3.5%

Wholesale trade 1.9%

Agriculture & mining 0.8%

Information 0.4%

Occupation

Category	%
Management, business & arts	30.6%
Service	14.9%
Sales & office	18.6%
Natural resources & construction	18.6%
Production & transportation	17.3%

Employment type

Type	%
Private sector	78.8%
Government	11.5%
Self-employed	9.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.1%
Carpool	4.6%
Public transit	0.6%
Walk	1.5%
Work from home	10.6%
Other means	0.6%
Avg commute (minutes)	34.1

Poverty

All people 11.4%

Under 18 years 18.4%

18 and over 9.3%

Married-couple families 5.6%

Female-led households 17.2%

Income support

Source	% of households
Social Security	32.0%
Retirement income	26.9%
Supplemental Security	3.4%
Cash public assistance	2.9%
Food stamps / SNAP	7.3%

Health indicators

Condition	%
Obesity	34.0%
High blood pressure	26.6%
High cholesterol	26.5%
Diabetes	7.2%
Heart disease	4.7%
Stroke	2.3%
Asthma	9.2%
Arthritis	19.0%
Kidney disease	2.2%
Pulmonary disease	4.8%
Cancer	5.5%

Behavior / access	%
Smoking	19.6%
Binge drinking	21.9%
No physical activity	19.3%
Less than 7 hrs sleep	31.7%
Depression	23.8%
Fair or poor health	10.3%
Poor mental health	14.8%
Poor physical health	8.6%
No health insurance	11.5%
Visited doctor (checkup)	66.8%
Visited dentist	65.1%
Cholesterol screening	87.2%
Teeth loss	10.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	929	8.6%

Disability	%
Any disability	12.5%
Under 18	4.2%
18–64 years	12.0%
65 and over	27.7%

Health insurance coverage

Type	%
Private insurance	68.6%
Public insurance	37.9%
No insurance	7.0%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,305	93.4%
Spanish	204	1.5%
Other Indo-European	190	1.4%
Asian & Pacific Islander	6	0.0%
Other languages	6	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	13,831	97.1%
Born in same state	13,812	97.0%
Born in different state	12,134	85.2%
Foreign born	19	0.1%
Naturalized citizen	409	2.9%
Not a US citizen	128	31.3%

Ancestry

Ancestry	Count	%
Polish	1,745	12.3%
Italian	1,487	10.4%
French	702	4.9%
Arab	422	3%
Dutch	186	1.3%

Ancestry	Count	%
German	125	0.9%
English	101	0.7%
Irish	71	0.5%
Norwegian	5	0%

Technology access

Metric	% of households
Computer access	36.2%
Internet access	96.6%

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

Frequently asked questions about ZIP code 55040

What city is ZIP code 55040 in?

ZIP code 55040 is primarily assigned to Isanti, Minnesota.

What county is ZIP code 55040 in?

ZIP code 55040 falls within Isanti County, Minnesota.

Is ZIP code 55040 mostly owner-occupied?

86% of occupied units in ZIP code 55040 are owner-occupied, well above the national average.

What is the population of ZIP code 55040?

ZIP code 55040 has an estimated population of 14,240 residents, with a density of 145 people per square mile.

What is the median household income in ZIP code 55040?

The median household income in ZIP code 55040 is $82,440, above the national median of ~$75,000.

What is the typical home value in ZIP code 55040?

The median home value in ZIP code 55040 is $259,300.

What timezone is ZIP code 55040 in?

ZIP code 55040 observes the CST timezone.