52101 ZIP Code — Decorah, IA

Winneshiek County, Iowa

ZIP code 52101 is located in Decorah, Iowa, within Winneshiek County. It covers approximately 316.70 square miles and serves a population of 12,962 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 563.

About ZIP code 52101

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 $237,800. Owner-occupancy sits near the national average at 73%.

The gap between median ($64,302) and mean household income suggests income inequality — a small number of higher earners pull the average up. 39% 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 16 minutes is near the national average.

Educational attainment is near the national average, with 39% of residents holding a bachelor's degree or higher.

12,962

population

316.70

sq mi land

Standard

ZIP type

Central (CT)

timezone

52101 ZIP code map

Cities in ZIP code 52101

Below are the cities the US Postal Service accepts for ZIP code 52101. Using any city not on this list may result in mail delivery delays.

City	Status
Decorah	Acceptable
Decorah	Preferred

Nearby ZIP codes

52165 Ridgeway (10.1 mi) 52132 Calmar (13.7 mi) 52161 Ossian (14.5 mi) 52172 Waukon (16 mi) 52133 Castalia (16.4 mi) 52144 Fort Atkinson (16.5 mi) 52136 Cresco (17.2 mi) 55954 Mabel (17.5 mi) 55922 Canton (18.7 mi) 55974 Spring Grove (19 mi)

Demographics updated 06/2026

Population
Total population	12,962
Population density	41 / sq mi
State FIPS	19
County FIPS	191

Geography
Land area	316.70 sq mi
Water area	0.13 sq mi
Latitude	43.3346
Longitude	-91.7793
Timezone	Central (CT)
Area code	563

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	39.7%	38.2%	40.1%
$50k – $100k	34.1%	38.1%	33.4%
$100k – $200k	21.8%	19.5%	21.5%
Over $200k	4.4%	4.2%	5.0%

Demographics & statistics

12,962

Population

People per sq mi

40.9

Median age

$64,302

Median household income

$37,116

Per capita income

$237,800

Median home value

$771

Median monthly rent

72.6%

Home ownership

11.2%

Poverty rate

2.6%

Unemployment

4,150

Housing units

38.7%

Bachelor's or higher

Age distribution

Male Female

277

Under 5

291

295

5–9

309

281

10–14

294

646

15–19

677

714

20–24

749

556

25–34

584

619

35–44

649

651

45–54

684

389

55–59

409

381

60–64

399

844

65–74

885

453

75–84

476

220

85+

230

← Male

Female →

Age summary

Group	Count	%
Under 18	2,229	17.2%
18 and over	10,733	82.8%
65 and over	3,108	24.0%
Median age	40.9 years

Race & ethnicity

White 94.9%

Two or more races 1.6%

Hispanic or Latino 1.1%

Asian 0.9%

Black or African American 0.6%

Other race 0.5%

American Indian / Alaska Native 0.4%

Group	Count	%
White	12,431	94.9%
Two or more races	208	1.6%
Hispanic or Latino	141	1.1%
Asian	122	0.9%
Black or African American	85	0.6%
Other race	61	0.5%
American Indian / Alaska Native	54	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	39.7%	38.2%	40.1%
$50k – $100k	34.1%	38.1%	33.4%
$100k – $200k	21.8%	19.5%	21.5%
Over $200k	4.4%	4.2%	5.0%

Under $10k 3.9%

$10k–$15k 2.6%

$15k–$25k 9.5%

$25k–$35k 8.2%

$35k–$50k 12.5%

$50k–$75k 18.3%

$75k–$100k 14.4%

$100k–$150k 16.4%

$150k–$200k 7.9%

$200k+ 6.3%

Range	% of households
Under $10k	3.9%
$10k–$15k	2.6%
$15k–$25k	9.5%
$25k–$35k	8.2%
$35k–$50k	12.5%
$50k–$75k	18.3%
$75k–$100k	14.4%
$100k–$150k	16.4%
$150k–$200k	7.9%
$200k+	6.3%
Median income	$64,302

Housing

Home values

Under $50k 2.5%

$50k–$100k 5.2%

$100k–$150k 10.2%

$150k–$200k 17.6%

$200k–$300k 27.7%

$300k–$500k 26.4%

$500k–$1M 9.3%

$1M+ 1.0%

Housing overview

Metric	Value
Median home value	$237,800
Median rent / month	$771
Owner occupied	72.6%
Renter occupied	27.4%
Vacant	8.4%
Single-family detached	77.0%
Large apartment buildings	3.7%
Mobile homes	2.6%
Median rooms	6.3
Avg household size (owned)	2.32

Year built

Era	%
2020 or later	0.1%
2010–2019	4.4%
2000–2009	11.8%
1990–1999	10.5%
1980–1989	10.3%
1970–1979	11.1%
1960–1969	6.5%
1950–1959	6.8%
1940–1949	4.9%
1939 or earlier	33.6%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	12.1%
2 bedrooms	25.9%
3 bedrooms	34.0%
4 bedrooms	18.3%
5+ bedrooms	8.6%

Vehicles per household

Vehicles	% of households
No vehicle	6.0%
1 vehicle	30.4%
2 vehicles	38.7%
3 or more	24.9%

Heating fuel

Fuel type	%
Utility gas	48.2%
Electricity	17.3%
Propane / LP gas	30.1%
Fuel oil	0.7%
Wood	2.8%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	2,692	53.0%
Cohabiting couple	265	5.2%
Male householder, no spouse	879	17.3%
Female householder, no spouse	1,241	24.4%
Households with children under 18	1,247	24.6%
Households with seniors (65+)	2,018	39.7%
Average household size	2.16

Marital status

Status	Male	Female
Never married	37.7%	34.6%
Married	51.3%	46.8%
Separated	0.6%	0.6%
Widowed	4.2%	9.3%
Divorced	6.2%	8.8%

Education

Less than 9th grade 1.7%

Some HS, no diploma 2.3%

HS graduate 26.8%

Some college, no degree 17.3%

Associate's degree 13.2%

Bachelor's degree 23.5%

Graduate / professional 15.2%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	38.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	281	7.2%
Kindergarten	135	3.4%
Elementary school	841	21.4%
High school	602	15.4%
College / grad school	2,062	52.6%

Employment

Industry of employment

Education & healthcare 36.2%

Manufacturing 13.2%

Arts, food & hospitality 10.4%

Retail trade 8.5%

Construction 8.2%

Professional & management 4.7%

Other services 3.9%

Transportation & utilities 3.6%

Finance & real estate 3.3%

Agriculture & mining 2.9%

Public administration 2.4%

Wholesale trade 1.3%

Information 1.3%

Occupation

Category	%
Management, business & arts	39.2%
Service	21.5%
Sales & office	17.8%
Natural resources & construction	8.9%
Production & transportation	12.6%

Employment type

Type	%
Private sector	79.6%
Government	11.5%
Self-employed	8.8%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	64.5%
Carpool	6.6%
Public transit	0.3%
Walk	18.3%
Work from home	9.5%
Other means	0.8%
Avg commute (minutes)	15.9

Poverty

All people 11.2%

Under 18 years 16.3%

18 and over 10.0%

Married-couple families 6.3%

Female-led households 20.9%

Income support

Source	% of households
Social Security	38.8%
Retirement income	25.2%
Supplemental Security	3.8%
Cash public assistance	1.8%
Food stamps / SNAP	5.5%

Health indicators

Condition	%
Obesity	30.0%
High blood pressure	27.7%
High cholesterol	30.1%
Diabetes	8.0%
Heart disease	5.8%
Stroke	2.5%
Asthma	9.1%
Arthritis	22.1%
Kidney disease	2.5%
Pulmonary disease	5.3%
Cancer	6.8%

Behavior / access	%
Smoking	12.4%
Binge drinking	23.1%
No physical activity	19.9%
Less than 7 hrs sleep	27.0%
Depression	16.8%
Fair or poor health	9.7%
Poor mental health	13.1%
Poor physical health	7.8%
No health insurance	7.9%
Visited doctor (checkup)	74.6%
Visited dentist	75.1%
Cholesterol screening	86.8%
Teeth loss	9.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	744	6.9%

Disability	%
Any disability	11.0%
Under 18	5.9%
18–64 years	7.2%
65 and over	25.0%

Health insurance coverage

Type	%
Private insurance	79.0%
Public insurance	36.6%
No insurance	2.2%
Uninsured under 19	1.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	12,394	95.6%
Spanish	69	0.6%
Other Indo-European	3	0.0%
Asian & Pacific Islander	34	0.3%
Other languages	27	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,701	98.0%
Born in same state	12,668	97.7%
Born in different state	8,134	62.8%
Foreign born	33	0.3%
Naturalized citizen	261	2.0%
Not a US citizen	117	44.8%

Ancestry

Ancestry	Count	%
Polish	3,413	26.3%
Italian	1,853	14.3%
French	1,155	8.9%
Arab	476	3.7%

Ancestry	Count	%
Dutch	303	2.3%
English	144	1.1%
German	34	0.3%
Norwegian	5	0%

Technology access

Metric	% of households
Computer access	39.2%
Internet access	89.3%

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

Frequently asked questions about ZIP code 52101

What city is ZIP code 52101 in?

ZIP code 52101 is primarily assigned to Decorah, Iowa.

What county is ZIP code 52101 in?

ZIP code 52101 falls within Winneshiek County, Iowa.

Does ZIP code 52101 have a large retiree population?

39% of households in ZIP code 52101 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 52101?

ZIP code 52101 has an estimated population of 12,962 residents, with a density of 41 people per square mile.

What is the median household income in ZIP code 52101?

The median household income in ZIP code 52101 is $64,302, below the national median of ~$75,000.

What is the typical home value in ZIP code 52101?

The median home value in ZIP code 52101 is $237,800.

What timezone is ZIP code 52101 in?

ZIP code 52101 observes the CST timezone.