55921 ZIP Code — Caledonia, MN

Houston County, Minnesota

ZIP code 55921 is located in Caledonia, Minnesota, within Houston County. It covers approximately 175.18 square miles and serves a population of 4,608 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 507.

About ZIP code 55921

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 $175,200. Owner-occupancy is high at 79%, well above the national average.

Median household income is $69,208. 38% 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 25 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 55921 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

4,608

population

175.18

sq mi land

Standard

ZIP type

Central (CT)

timezone

55921 ZIP code map

Cities in ZIP code 55921

Below are the cities the US Postal Service accepts for ZIP code 55921. Using any city not on this list may result in mail delivery delays.

City	Status
Caledonia	Acceptable
Caledonia	Preferred

Nearby ZIP codes

55919 Brownsville (5.3 mi) 55941 Hokah (7.6 mi) 55931 Eitzen (7.9 mi) 55974 Spring Grove (11 mi) 54658 Stoddard (12.3 mi) 55947 La Crescent (13.4 mi) 54632 Genoa (13.7 mi) 52160 New Albin (14 mi) 55943 Houston (14.3 mi) 54601 La Crosse (17.4 mi) 54621 Chaseburg (18 mi) 54603 La Crosse (18 mi)

Demographics updated 05/2026

Population
Total population	4,608
Population density	26 / sq mi
State FIPS	27
County FIPS	055

Geography
Land area	175.18 sq mi
Water area	0.38 sq mi
Latitude	43.6272
Longitude	-91.4143
Timezone	Central (CT)
Area code	507

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	40.2%	38.3%	33.6%
$50k – $100k	36.1%	37.6%	31.5%
$100k – $200k	20.7%	20.4%	26.5%
Over $200k	2.9%	3.7%	8.5%

Demographics & statistics

4,608

Population

People per sq mi

46.4

Median age

$69,208

Median household income

$40,915

Per capita income

$175,200

Median home value

$757

Median monthly rent

78.9%

Home ownership

7.9%

Poverty rate

1.1%

Unemployment

1,711

Housing units

19.3%

Bachelor's or higher

Age distribution

Male Female

114

Under 5

135

107

5–9

128

109

10–14

130

140

15–19

167

140

20–24

167

178

25–34

212

240

35–44

287

301

45–54

358

116

55–59

138

192

60–64

228

272

65–74

324

125

75–84

149

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	954	20.7%
18 and over	3,654	79.3%
65 and over	1,021	22.2%
Median age	46.4 years

Race & ethnicity

White 97.6%

Two or more races 1.5%

Hispanic or Latino 0.6%

Black or African American 0.2%

American Indian / Alaska Native 0.1%

Other race 0.1%

Group	Count	%
White	4,522	97.6%
Two or more races	69	1.5%
Hispanic or Latino	26	0.6%
Black or African American	7	0.2%
American Indian / Alaska Native	5	0.1%
Other race	5	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	40.2%	38.3%	33.6%
$50k – $100k	36.1%	37.6%	31.5%
$100k – $200k	20.7%	20.4%	26.5%
Over $200k	2.9%	3.7%	8.5%

Under $10k 3.4%

$10k–$15k 5.7%

$15k–$25k 9.3%

$25k–$35k 7.9%

$35k–$50k 8.0%

$50k–$75k 18.8%

$75k–$100k 14.6%

$100k–$150k 18.1%

$150k–$200k 10.9%

$200k+ 3.4%

Range	% of households
Under $10k	3.4%
$10k–$15k	5.7%
$15k–$25k	9.3%
$25k–$35k	7.9%
$35k–$50k	8.0%
$50k–$75k	18.8%
$75k–$100k	14.6%
$100k–$150k	18.1%
$150k–$200k	10.9%
$200k+	3.4%
Median income	$69,208

Housing

Home values

Under $50k 5.9%

$50k–$100k 12.7%

$100k–$150k 23.3%

$150k–$200k 15.0%

$200k–$300k 25.7%

$300k–$500k 10.5%

$500k–$1M 5.9%

$1M+ 1.0%

Housing overview

Metric	Value
Median home value	$175,200
Median rent / month	$757
Owner occupied	78.9%
Renter occupied	21.1%
Vacant	4.4%
Single-family detached	84.3%
Large apartment buildings	1.2%
Mobile homes	5.8%
Median rooms	6.4
Avg household size (owned)	2.29

Year built

Era	%
2020 or later	0.3%
2010–2019	4.0%
2000–2009	9.5%
1990–1999	12.9%
1980–1989	9.0%
1970–1979	14.1%
1960–1969	7.2%
1950–1959	9.4%
1940–1949	5.3%
1939 or earlier	28.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	6.2%
2 bedrooms	18.2%
3 bedrooms	45.4%
4 bedrooms	23.6%
5+ bedrooms	6.0%

Vehicles per household

Vehicles	% of households
No vehicle	3.6%
1 vehicle	25.9%
2 vehicles	42.4%
3 or more	28.2%

Heating fuel

Fuel type	%
Utility gas	59.9%
Electricity	4.5%
Propane / LP gas	20.7%
Fuel oil	4.1%
Wood	5.4%
No fuel used	4.3%

Households & families

Household type	Count	%
Married-couple family	1,010	49.3%
Cohabiting couple	147	7.2%
Male householder, no spouse	282	13.8%
Female householder, no spouse	610	29.8%
Households with children under 18	474	23.1%
Households with seniors (65+)	729	35.6%
Average household size	2.21

Marital status

Status	Male	Female
Never married	29.5%	30.5%
Married	60.0%	50.5%
Separated	0.1%	0.2%
Widowed	0.9%	10.8%
Divorced	9.4%	8.0%

Education

Less than 9th grade 1.5%

Some HS, no diploma 4.9%

HS graduate 40.7%

Some college, no degree 13.3%

Associate's degree 20.3%

Bachelor's degree 14.9%

Graduate / professional 4.3%

Metric	%
HS diploma or higher	93.6%
Bachelor's or higher	19.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	82	8.8%
Kindergarten	67	7.2%
Elementary school	390	42.1%
High school	255	27.5%
College / grad school	133	14.3%

Employment

Industry of employment

Education & healthcare 29.4%

Manufacturing 14.7%

Retail trade 10.6%

Construction 10.5%

Transportation & utilities 4.9%

Other services 4.9%

Finance & real estate 4.8%

Wholesale trade 4.4%

Professional & management 4.2%

Arts, food & hospitality 4.2%

Agriculture & mining 3.7%

Public administration 3.4%

Information 0.4%

Occupation

Category	%
Management, business & arts	34.1%
Service	13.9%
Sales & office	17.2%
Natural resources & construction	15.6%
Production & transportation	19.2%

Employment type

Type	%
Private sector	82.1%
Government	11.9%
Self-employed	5.8%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	77.5%
Carpool	9.9%
Public transit	0.0%
Walk	2.0%
Work from home	8.2%
Other means	2.4%
Avg commute (minutes)	24.9

Poverty

All people 7.9%

Under 18 years 1.6%

18 and over 9.6%

Married-couple families 1.7%

Female-led households 12.3%

Income support

Source	% of households
Social Security	37.9%
Retirement income	20.7%
Supplemental Security	1.6%
Cash public assistance	0.1%
Food stamps / SNAP	2.2%

Health indicators

Condition	%
Obesity	32.4%
High blood pressure	31.9%
High cholesterol	31.2%
Diabetes	9.6%
Heart disease	7.0%
Stroke	3.2%
Asthma	9.0%
Arthritis	24.4%
Kidney disease	3.0%
Pulmonary disease	6.2%
Cancer	7.6%

Behavior / access	%
Smoking	18.8%
Binge drinking	18.8%
No physical activity	21.8%
Less than 7 hrs sleep	30.2%
Depression	22.1%
Fair or poor health	12.7%
Poor mental health	13.5%
Poor physical health	9.8%
No health insurance	11.1%
Visited doctor (checkup)	70.7%
Visited dentist	65.7%
Cholesterol screening	89.3%
Teeth loss	12.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	191	5.2%

Disability	%
Any disability	13.4%
Under 18	2.6%
18–64 years	10.0%
65 and over	33.3%

Health insurance coverage

Type	%
Private insurance	70.7%
Public insurance	38.0%
No insurance	6.0%
Uninsured under 19	8.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,359	94.6%
Spanish	9	0.2%
Other Indo-European	5	0.1%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,598	99.8%
Born in same state	4,596	99.7%
Born in different state	1,810	39.3%
Foreign born	2	0.0%
Naturalized citizen	10	0.2%
Not a US citizen	1	10.0%

Ancestry

Ancestry	Count	%
Polish	1,046	22.7%
Italian	519	11.3%
Arab	343	7.4%
French	328	7.1%

Ancestry	Count	%
Dutch	35	0.8%
German	12	0.3%
English	10	0.2%

Technology access

Metric	% of households
Computer access	44.5%
Internet access	90.0%

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

Frequently asked questions about ZIP code 55921

What city is ZIP code 55921 in?

ZIP code 55921 is primarily assigned to Caledonia, Minnesota.

What county is ZIP code 55921 in?

ZIP code 55921 falls within Houston County, Minnesota.

Does ZIP code 55921 have a large retiree population?

38% of households in ZIP code 55921 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 55921?

The median home value in ZIP code 55921 is $175,200.

What is the population of ZIP code 55921?

ZIP code 55921 has an estimated population of 4,608 residents, with a density of 26 people per square mile.

What is the median household income in ZIP code 55921?

The median household income in ZIP code 55921 is $69,208, below the national median of ~$75,000.

What timezone is ZIP code 55921 in?

ZIP code 55921 observes the CST timezone.