Marietta, MN ZIP code

The ZIP code for Marietta, Minnesota is 56257. It is in Lac qui Parle County.

56257

Population in these ZIPs: 377
Avg. median income: $75,400population-weighted
Typical home value: $73,800population-weighted

Loading map…

Click anywhere on the map to see which ZIP code it's in.

Marietta, MN ZIP code list

Marietta, MN ZIP codes
ZIP code	Population	Median income	Typical home value
56257	377	$75,417	$73,800

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Marietta

Madison 10 mi
Bellingham 12 mi
Canby 18 mi
Dawson 18 mi
Odessa 19 mi
Boyd 25 mi
Correll 25 mi
Porter 26 mi
Ortonville 26 mi
Appleton 27 mi
Watson 28 mi
Milan 28 mi

Frequently asked questions

What is the ZIP code for Marietta, MN?

The ZIP code for Marietta, MN is 56257.

What county is Marietta, Minnesota in?

Marietta ZIP codes are in Lac qui Parle County.