Marietta ZIP Codes — Lac Qui Parle County, MN

There is one unique ZIP code in Marietta, Minnesota and it is 56257. Area code: 320.

ZIP codes

92.10

sq mi land

0.67

sq mi water

320

area code

Marietta, MN ZIP code map

About Marietta, MN

Marietta is a small city located in Lac Qui Parle County, Minnesota. Known for its peaceful environment and rural charm, it offers a slice of life that embodies the heart of the Midwest. The city is positioned amidst the picturesque landscapes typical of southern Minnesota, making it a quaint destination for visitors seeking tranquility.

Location & geography

Geographically, Marietta is situated approximately 16 miles northeast of Dawson and about 22 miles southwest of Montevideo. The city covers a total land area of 92.10 square miles, with a small water area of 0.67 square miles contributing to its natural beauty. The terrain is characterized by rolling hills and vast open fields, making it ideal for outdoor activities.

Community & economy

The community in Marietta is known for its friendly atmosphere and close-knit relationships among residents. Agriculture plays a significant role in the local economy, with many residents engaged in farming and related industries. Daily life in Marietta is often centered around community events and gatherings, reflecting the city’s strong sense of rural pride.

Transportation

Transportation in Marietta is primarily facilitated by local roads connecting to U.S. Highway 212, which serves as a major route for commuters and travelers. The nearest commercial airport is located in nearby Montevideo, providing convenient access to air travel. Public transit options are limited due to the city’s small size, making personal vehicles the primary mode of transportation.

History

Marietta was established in the late 19th century and has historically been rooted in agriculture and community-driven growth. Over the years, the city has celebrated various events that highlight its agricultural heritage and friendly atmosphere. Notable local celebrations often include harvest festivals that bring together residents to honor their farming traditions.

Did you know?

One surprising fact about Marietta is that it has only one ZIP code, 56257, which simplifies postal services for the residents. Additionally, despite its size, the community is vibrant and holds a unique charm, often attracting visitors looking for a quiet escape.

ZIP codes for Marietta, MN (1)

ZIP code	City	County	Map
56257	Marietta	Lac Qui Parle	View map

Demographics & statistics

453

Population

47.4

Median age

$61,000

Median household income

$28,719

Per capita income

$65,000

Median home value

$938

Median monthly rent

81.7%

Home ownership

21.1%

Poverty rate

5.1%

Unemployment

207

Housing units

13.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	108	23.8%
18 and over	345	76.2%
65 and over	138	30.5%
Median age	47.4 years

Race & ethnicity

White 96.5%

Two or more races 2.6%

Hispanic or Latino 0.9%

Group	Count	%
White	441	96.5%
Two or more races	12	2.6%
Hispanic or Latino	4	0.9%

Household income

Under $10k 8.1%

$10k–$15k 7.5%

$15k–$25k 11.8%

$25k–$35k 8.1%

$35k–$50k 5.9%

$50k–$75k 20.4%

$75k–$100k 18.8%

$100k–$150k 14.5%

$150k–$200k 3.2%

$200k+ 1.6%

Range	% of households
Under $10k	8.1%
$10k–$15k	7.5%
$15k–$25k	11.8%
$25k–$35k	8.1%
$35k–$50k	5.9%
$50k–$75k	20.4%
$75k–$100k	18.8%
$100k–$150k	14.5%
$150k–$200k	3.2%
$200k+	1.6%
Median income	$61,000

Housing

Home values

Under $50k 38.2%

$50k–$100k 27.6%

$100k–$150k 9.2%

$150k–$200k 3.9%

$200k–$300k 14.5%

$300k–$500k 3.3%

$500k–$1M 3.3%

Housing overview

Metric	Value
Median home value	$65,000
Median rent / month	$938
Owner occupied	81.7%
Renter occupied	18.3%
Vacant	22.8%
Single-family detached	98.8%
Large apartment buildings	0.0%
Mobile homes	1.2%
Median rooms	7.0
Avg household size (owned)	2.39

Year built

Era	%
2020 or later	0.0%
2010–2019	0.8%
2000–2009	3.7%
1990–1999	1.7%
1980–1989	2.1%
1970–1979	17.4%
1960–1969	6.6%
1950–1959	4.1%
1940–1949	9.5%
1939 or earlier	53.9%

Bedrooms

Size	% of units
No bedroom (studio)	2.9%
1 bedroom	5.4%
2 bedrooms	19.1%
3 bedrooms	41.9%
4 bedrooms	25.7%
5+ bedrooms	5.0%

Vehicles per household

Vehicles	% of households
No vehicle	1.6%
1 vehicle	30.1%
2 vehicles	34.9%
3 or more	33.3%

Heating fuel

Fuel type	%
Utility gas	8.1%
Electricity	28.5%
Propane / LP gas	59.1%
Fuel oil	1.1%
Wood	3.2%

Households & families

Household type	Count	%
Married-couple family	89	47.8%
Cohabiting couple	16	8.6%
Male householder, no spouse	42	22.6%
Female householder, no spouse	39	21.0%
Households with children under 18	41	22.0%
Households with seniors (65+)	90	48.4%
Average household size	2.44

Marital status

Status	Male	Female
Never married	36.1%	41.4%
Married	47.0%	49.5%
Separated	0.0%	0.0%
Widowed	0.5%	5.6%
Divorced	16.4%	3.5%

Education

Less than 9th grade 0.0%

Some HS, no diploma 4.2%

HS graduate 45.9%

Some college, no degree 24.8%

Associate's degree 11.7%

Bachelor's degree 10.1%

Graduate / professional 3.3%

Metric	%
HS diploma or higher	95.8%
Bachelor's or higher	13.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	14	13.5%
Kindergarten	5	4.8%
Elementary school	34	32.7%
High school	46	44.2%
College / grad school	5	4.8%

Employment

Industry of employment

Agriculture & mining 21.6%

Education & healthcare 13.2%

Manufacturing 9.6%

Transportation & utilities 9.6%

Construction 9.0%

Retail trade 9.0%

Professional & management 7.2%

Other services 4.8%

Public administration 4.8%

Arts, food & hospitality 4.2%

Information 3.0%

Finance & real estate 3.0%

Wholesale trade 1.2%

Occupation

Category	%
Management, business & arts	38.3%
Service	21.0%
Sales & office	8.4%
Natural resources & construction	18.6%
Production & transportation	13.8%

Employment type

Type	%
Private sector	61.7%
Government	16.8%
Self-employed	21.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	68.5%
Carpool	10.3%
Public transit	0.0%
Walk	10.3%
Other means	0.0%
Avg commute (minutes)	24.1

Poverty

All people 21.1%

Under 18 years 46.0%

18 and over 13.9%

Married-couple families 4.5%

Female-led households 68.8%

Income support

Source	% of households
Social Security	50.5%
Retirement income	21.5%
Supplemental Security	4.3%
Cash public assistance	4.8%
Food stamps / SNAP	17.2%

Health indicators

Condition	%
High blood pressure	37.7%
High cholesterol	35.5%
Heart disease	8.8%
Stroke	4.0%
Asthma	8.7%
Arthritis	29.6%
Kidney disease	3.6%
Pulmonary disease	7.4%
Cancer	9.3%

Behavior / access	%
Binge drinking	17.0%
No physical activity	23.6%
Less than 7 hrs sleep	27.5%
Fair or poor health	14.1%
Poor mental health	12.2%
Poor physical health	11.0%
No health insurance	10.4%
Visited doctor (checkup)	73.5%
Visited dentist	67.6%
Cholesterol screening	92.4%
Teeth loss	12.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	26	7.5%

Disability	%
Any disability	9.7%
Under 18	1.9%
18–64 years	8.2%
65 and over	18.1%

Health insurance coverage

Type	%
Private insurance	61.8%
Public insurance	65.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	433	95.6%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	449	99.1%
Born in same state	448	98.9%
Born in different state	315	69.5%
Foreign born	1	0.2%
Naturalized citizen	4	0.9%
Not a US citizen	2	50.0%

Ancestry

Ancestry	Count	%
Polish	146	32.2%
French	32	7.1%
Italian	24	5.3%
English	11	2.4%

Ancestry	Count	%
Arab	10	2.2%
Dutch	4	0.9%
Irish	3	0.7%
German	2	0.4%

Technology access

Metric	% of households
Computer access	41.1%
Internet access	79.0%

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

Frequently asked questions

What ZIP codes does Marietta, MN have?

Marietta, MN has one ZIP code: 56257. Each ZIP code serves a distinct delivery area within the city and surrounding region.