Home > MN > Nicollet County > Mankato > Zip 56003

Zip Code 56003 — Mankato, MN

ZIP Code 56003 is associated with Mankato, MN, in Nicollet County. The listed population estimate is 15,258; estimated density is 133.9 people per square mile. Among records with population estimates, it ranks #1 of 5 in Nicollet County and #131 of 877 in MN.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (44.212730, -94.088770)

Data MetricLocal Statistic
Postal / Zip Code56003
Primary CityMankato
State / ProvinceMN
CountyNicollet
Total Population15,258
Population Density133.9 people/sq mi
TimezoneAmerica/Chicago

How 56003 Compares

MetricZIP 56003Nicollet County recordsMN records
Population estimate15,25833,670 (sum)5,739,754 (sum)
Population Density133.9 /sq mi----
County population rank#1 of 5----
State population rank#131 of 877----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MN

ZIP CodeCityDistancePopulation estimate
ZIP 56050Kasota7.7 mi1,306
ZIP 56001Mankato7.8 mi51,585
ZIP 56074Nicollet9.5 mi1,845
ZIP 56055Lake Crystal9.8 mi3,898
ZIP 56082Saint Peter10.0 mi14,606

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →