52301 ZIP Code — Marengo, IA

Iowa County, Iowa

ZIP code 52301 is located in Marengo, Iowa, within Iowa County. It covers approximately 126.29 square miles and serves a population of 4,099 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 319.

About ZIP code 52301

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 $139,400. Owner-occupancy is high at 78%, well above the national average.

Median household income is $66,553. 36% 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 22 minutes is near the national average.

College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 52301 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

4,099

population

126.29

sq mi land

Standard

ZIP type

Central (CT)

timezone

52301 ZIP code map

Cities in ZIP code 52301

Below are the cities the US Postal Service accepts for ZIP code 52301. Using any city not on this list may result in mail delivery delays.

City	Status
Marengo	Acceptable
Marengo	Preferred

Nearby ZIP codes

52251 Ladora (6.5 mi) 52334 South Amana (9.5 mi) 52209 Blairstown (9.6 mi) 52347 Victor (9.7 mi) 52208 Belle Plaine (10.3 mi) 52361 Williamsburg (10.3 mi) 52354 Watkins (11.5 mi) 52204 Amana (12.6 mi) 52203 Amana (13.2 mi) 52318 Norway (14 mi) 52351 Walford (16.1 mi) 52222 Deep River (16.4 mi)

Demographics updated 05/2026

Population
Total population	4,099
Population density	32 / sq mi
State FIPS	19
County FIPS	095

Geography
Land area	126.29 sq mi
Water area	0.21 sq mi
Latitude	41.7754
Longitude	-92.1134
Timezone	Central (CT)
Area code	319

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%	36.6%	40.1%
$50k – $100k	34.5%	36.7%	33.4%
$100k – $200k	23.2%	23.2%	21.5%
Over $200k	2.1%	3.5%	5.0%

Demographics & statistics

4,099

Population

People per sq mi

42.7

Median age

$66,553

Median household income

$34,147

Per capita income

$139,400

Median home value

$722

Median monthly rent

78.1%

Home ownership

8.7%

Poverty rate

3.2%

Unemployment

1,507

Housing units

13.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

109

173

10–14

190

117

15–19

128

20–24

222

25–34

243

262

35–44

288

170

45–54

187

165

55–59

182

157

60–64

173

264

65–74

291

123

75–84

136

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	896	21.9%
18 and over	3,203	78.1%
65 and over	874	21.3%
Median age	42.7 years

Race & ethnicity

White 93.6%

Hispanic or Latino 2.2%

Two or more races 1.8%

Other race 1.2%

Black or African American 0.8%

American Indian / Alaska Native 0.1%

Asian 0.1%

Group	Count	%
White	3,926	93.6%
Hispanic or Latino	94	2.2%
Two or more races	75	1.8%
Other race	52	1.2%
Black or African American	35	0.8%
American Indian / Alaska Native	6	0.1%
Asian	5	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	40.2%	36.6%	40.1%
$50k – $100k	34.5%	36.7%	33.4%
$100k – $200k	23.2%	23.2%	21.5%
Over $200k	2.1%	3.5%	5.0%

Under $10k 3.4%

$10k–$15k 3.1%

$15k–$25k 6.0%

$25k–$35k 9.2%

$35k–$50k 11.4%

$50k–$75k 25.3%

$75k–$100k 13.6%

$100k–$150k 19.7%

$150k–$200k 4.8%

$200k+ 3.4%

Range	% of households
Under $10k	3.4%
$10k–$15k	3.1%
$15k–$25k	6.0%
$25k–$35k	9.2%
$35k–$50k	11.4%
$50k–$75k	25.3%
$75k–$100k	13.6%
$100k–$150k	19.7%
$150k–$200k	4.8%
$200k+	3.4%
Median income	$66,553

Housing

Home values

Under $50k 6.3%

$50k–$100k 20.0%

$100k–$150k 27.5%

$150k–$200k 15.3%

$200k–$300k 18.0%

$300k–$500k 10.5%

$500k–$1M 1.8%

$1M+ 0.6%

Housing overview

Metric	Value
Median home value	$139,400
Median rent / month	$722
Owner occupied	78.1%
Renter occupied	21.9%
Vacant	9.8%
Single-family detached	82.0%
Large apartment buildings	0.7%
Mobile homes	5.6%
Median rooms	6.6
Avg household size (owned)	2.39

Year built

Era	%
2020 or later	0.0%
2010–2019	4.8%
2000–2009	6.1%
1990–1999	11.6%
1980–1989	6.8%
1970–1979	16.9%
1960–1969	3.4%
1950–1959	5.3%
1940–1949	5.4%
1939 or earlier	39.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	8.8%
2 bedrooms	19.0%
3 bedrooms	50.8%
4 bedrooms	18.8%
5+ bedrooms	2.6%

Vehicles per household

Vehicles	% of households
No vehicle	5.2%
1 vehicle	21.2%
2 vehicles	45.0%
3 or more	28.6%

Heating fuel

Fuel type	%
Utility gas	58.1%
Electricity	16.3%
Propane / LP gas	20.1%
Fuel oil	0.8%
Wood	1.8%

Households & families

Household type	Count	%
Married-couple family	834	49.3%
Cohabiting couple	130	7.7%
Male householder, no spouse	286	16.9%
Female householder, no spouse	443	26.2%
Households with children under 18	436	25.8%
Households with seniors (65+)	601	35.5%
Average household size	2.37

Marital status

Status	Male	Female
Never married	28.2%	18.2%
Married	53.6%	54.5%
Separated	1.3%	0.2%
Widowed	2.1%	9.0%
Divorced	14.8%	18.0%

Education

Less than 9th grade 4.7%

Some HS, no diploma 5.7%

HS graduate 39.5%

Some college, no degree 23.8%

Associate's degree 13.1%

Bachelor's degree 9.7%

Graduate / professional 3.5%

Metric	%
HS diploma or higher	89.7%
Bachelor's or higher	13.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	42	4.6%
Kindergarten	38	4.2%
Elementary school	454	49.8%
High school	279	30.6%
College / grad school	98	10.8%

Employment

Industry of employment

Education & healthcare 24.7%

Manufacturing 18.8%

Retail trade 14.1%

Construction 9.1%

Arts, food & hospitality 6.5%

Agriculture & mining 5.6%

Professional & management 4.2%

Public administration 4.0%

Other services 3.8%

Transportation & utilities 3.2%

Wholesale trade 2.9%

Finance & real estate 1.7%

Information 1.4%

Occupation

Category	%
Management, business & arts	31.8%
Service	17.0%
Sales & office	22.6%
Natural resources & construction	11.5%
Production & transportation	17.1%

Employment type

Type	%
Private sector	76.8%
Government	17.2%
Self-employed	6.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	86.8%
Carpool	7.5%
Public transit	0.0%
Walk	1.3%
Work from home	3.8%
Other means	0.5%
Avg commute (minutes)	21.8

Poverty

All people 8.7%

Under 18 years 10.8%

18 and over 8.1%

Married-couple families 1.4%

Female-led households 18.8%

Income support

Source	% of households
Social Security	36.3%
Retirement income	30.8%
Supplemental Security	3.9%
Cash public assistance	2.2%
Food stamps / SNAP	9.7%

Health indicators

Condition	%
Obesity	39.6%
High blood pressure	33.6%
High cholesterol	32.8%
Diabetes	10.0%
Heart disease	6.8%
Stroke	3.1%
Asthma	9.3%
Arthritis	25.3%
Kidney disease	2.9%
Pulmonary disease	6.9%
Cancer	7.5%

Behavior / access	%
Smoking	17.7%
Binge drinking	21.3%
No physical activity	24.7%
Less than 7 hrs sleep	31.0%
Depression	18.2%
Fair or poor health	12.7%
Poor mental health	13.4%
Poor physical health	9.8%
No health insurance	9.6%
Visited doctor (checkup)	74.8%
Visited dentist	67.9%
Cholesterol screening	89.2%
Teeth loss	12.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	266	8.3%

Disability	%
Any disability	14.8%
Under 18	9.3%
18–64 years	12.3%
65 and over	27.7%

Health insurance coverage

Type	%
Private insurance	72.8%
Public insurance	37.6%
No insurance	4.0%
Uninsured under 19	2.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,916	95.5%
Spanish	52	1.3%
Other Indo-European	47	1.2%
Asian & Pacific Islander	0	0.0%
Other languages	5	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,999	97.6%
Born in same state	3,978	97.0%
Born in different state	3,420	83.4%
Foreign born	21	0.5%
Naturalized citizen	100	2.4%
Not a US citizen	26	26.0%

Ancestry

Ancestry	Count	%
Italian	597	14.6%
French	256	6.2%
Arab	244	6%
English	187	4.6%

Ancestry	Count	%
Polish	92	2.2%
Dutch	13	0.3%
Norwegian	6	0.1%

Technology access

Metric	% of households
Computer access	41.3%
Internet access	92.1%

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

Frequently asked questions about ZIP code 52301

What city is ZIP code 52301 in?

ZIP code 52301 is primarily assigned to Marengo, Iowa.

What county is ZIP code 52301 in?

ZIP code 52301 falls within Iowa County, Iowa.

How educated is the population of ZIP code 52301?

13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 52301 have a large retiree population?

36% of households in ZIP code 52301 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 52301?

The median home value in ZIP code 52301 is $139,400.

What is the population of ZIP code 52301?

ZIP code 52301 has an estimated population of 4,099 residents, with a density of 32 people per square mile.

What timezone is ZIP code 52301 in?

ZIP code 52301 observes the CST timezone.