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Zip Code 55920 — Byron, MN

ZIP Code 55920 is associated with Byron, MN, in Olmsted County. The listed population estimate is 9,271; estimated density is 52.1 people per square mile. Among records with population estimates, it ranks #5 of 10 in Olmsted County and #179 of 877 in MN.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (44.012460, -92.621110)

Data MetricLocal Statistic
Postal / Zip Code55920
Primary CityByron
State / ProvinceMN
CountyOlmsted
Total Population9,271
Population Density52.1 people/sq mi
TimezoneAmerica/Chicago

How 55920 Compares

MetricZIP 55920Olmsted County recordsMN records
Population estimate9,271163,038 (sum)5,739,754 (sum)
Population Density52.1 /sq mi----
County population rank#5 of 10----
State population rank#179 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 55905Rochester5.6 miN/A
ZIP 55944Kasson6.0 mi8,161
ZIP 55902Rochester6.1 mi26,464
ZIP 55901Rochester7.4 mi58,495
ZIP 55955Mantorville8.1 mi2,605

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 →